UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED
MANAGEMENT INVESTMENT COMPANIES

Investment Company Act File Number: 811-03872

T. Rowe Price Tax-Free Short-Intermediate Fund, Inc.

(Exact name of registrant as specified in charter)

100 East Pratt Street, Baltimore, MD 21202

(Address of principal executive offices)

David Oestreicher

100 East Pratt Street, Baltimore, MD 21202

(Name and address of agent for service)

Registrant’s telephone number, including area code: (410) 345-2000

Date of fiscal year end: February 28

Date of reporting period: August 31, 2018

*Certain mutual fund accounts that are assessed an annual account service fee can also save money by switching to e-delivery.

Financial markets performed well overall in the first half of your fund’s fiscal year, the six months ended in August 2018. Investors had to endure periodic volatility, however, and returns varied considerably among asset classes.

U.S. equity returns were particularly strong, with most of the major benchmarks establishing new highs by August. Investors bid stocks up as profit growth surged in early 2018, with earnings for the S&P 500 Index in the first two quarters jumping by roughly 25% versus a year before—the biggest gain in nearly eight years. Revenue growth was also especially robust and reached multiyear highs.

Much of the topline and bottom-line growth remained concentrated in the largest technology and Internet firms, which continued to gain market share and disrupt a range of industries. Apple reached a market milestone in early August, when it became the first company with a market capitalization above $1 trillion—with Amazon.com and Alphabet (Google’s parent company) not far behind. However, public scrutiny of the power and reach of the tech giants reached new heights during the period. Most notably, Facebook founder Mark Zuckerberg was called before Congress to explain the unauthorized use of customer data.

Rising trade tensions were also front and center. On March 1, the first day of your fund’s fiscal year, President Donald Trump surprised markets by announcing new tariffs on metals imports. Tariff threats and counterthreats escalated in the following months, resulting in some unforeseen ripple effects for investors. In particular, shares in major U.S. industrial exporters lagged the market’s advance as the U.S. dollar strengthened and investors worried about retaliatory measures.

Comparatively, robust economic growth and rising interest rates drove the dollar higher against most foreign currencies. Slumping currencies converted modestly positive local equity returns in many countries into losses for U.S. investors. Non-U.S. bond returns were also broadly negative.

The strengthening dollar and trade worries took their heaviest toll on emerging markets. Chinese stocks fell sharply, while many other markets closely tied to global trade also declined. Past and present policy missteps combined with worrisome current account deficits threatened to lead to full-blown financial crises in Argentina and Turkey and caused a plunge in both nations’ currencies. The MSCI Emerging Markets Index entered bear market territory in mid-August after declining more than 20% from its January highs.

Longer-term Treasury yields ended flat to slightly lower over the period despite the accelerating economy and widening budget deficit. Stable yields supported bond prices generally, and most domestic bond segments recorded modest, positive total returns. Healthy corporate earnings and economic conditions supported demand for riskier assets, and high yield bonds offered the best returns. Meanwhile, the Federal Reserve continued to raise short-term interest rates, helping savers and income-seeking investors.

Investment-grade tax-free municipal bonds benefited from a supportive technical environment and outperformed Treasuries and the broader U.S. taxable investment-grade bond market for the six-month period. Investor demand for munis remained steady, while the supply of bonds shrank due to a steep drop in refundings. The new tax law enacted at the end of 2017 eliminated the tax benefits of advance refundings, which had allowed issuers to refinance existing debt with new bonds. Strong demand for higher-yielding securities helped lower-quality munis outperform. Puerto Rico bonds were the best performers in the muni market during the period. While many challenges remain for Puerto Rico, progress toward a resolution for bondholders extended the rally in these bonds.

In mid-August, the current bull market in U.S. stocks became the longest in modern history, according to one measure, and the current economic expansion may be poised to join the record books next summer. Understandably, many investors are beginning to wonder whether the economy and corporate earnings have reached a cycle peak, leading some to question how much longer the good times can last.

For now, fundamentals remain supportive, and we don’t see the classic signs of an impending recession on the horizon. That said, we will be monitoring global economic data and bond market signals for early signs of when this nine-year-plus bull market might be making its last charge. You can rest assured that your fund’s manager is drawing on the extensive resources of T. Rowe Price’s research platform in looking for both signs of trouble and new investment opportunities.

The fund seeks to provide preservation of capital, liquidity, and, consistent with these objectives, the highest current income exempt from federal income taxes.

The Tax-Exempt Money Fund returned 0.50% for the six months ended August 31, 2018, performing in line with the Lipper Tax-Exempt Money Market Funds Index. (Returns for I Class shares varied slightly, reflecting their different fee structure. Past performance cannot guarantee future results.)

The Federal Reserve remained active during the reporting period, raising rates by 25 basis points in both March and June, which lifted the federal funds target rate to a range of 1.75% to 2.00% by the end of August (100 basis points equal one percentage point). Other short-term interest rates also increased as the Fed raised rates.

Variable rate demand note (VRDN) yields averaged 1.37% since our last report, compared with a 1.04% average for the prior six months; still, supply constraints continued to keep their rates from moving higher. Longer-term municipal money market rates increased, with one-year maturities yielding around 1.80% at the end of the reporting period. The fund benefited from a strategy in which we underweighted VRDNs in favor of somewhat longer-dated positions in commercial paper and other fixed rate investments. Generally, this strategy resulted in a weighted average maturity somewhat longer than that of the peer group.

We were underweight VRDNs compared with our peer group and instead favored longer-maturity debt, such as commercial paper. Imbalances between supply and demand in the shorter-maturity part of the municipal money market, which includes VRDNs, continued to suppress rates in that segment of the yield curve. We maintained a weighted average maturity slightly longer than that of the peer group, and we plan to opportunistically add longer-maturity investments when we feel our interest rate outlook is reflected in pricing.

By most measures, the economy continues to look strong. Employment remains robust, though wage growth and inflation are still restrained. As a result, we expect the Fed to continue its recent pace of interest rate increases and to lift its benchmark rate twice more in 2018—once in both September and December. This should lead to generally higher money market yields, but a limited supply of short-term municipal debt is likely to restrain yield levels in our market in the near term.

As always, we remain committed to managing a high-quality, diversified portfolio focused on liquidity and stability of principal, which we deem of utmost importance to our shareholders.

The fund seeks to provide, consistent with modest price fluctuation, a high level of income exempt from federal income taxes by investing primarily in short- and intermediate-term investment-grade municipal securities.

The Tax-Free Short-Intermediate Fund returned 0.73% for the six months ended August 31, 2018, underperforming the Lipper Short-Intermediate Municipal Debt Funds Average. (Results for Advisor and I Class shares varied slightly, reflecting their different fee structures. Past performance cannot guarantee future results.)

Shorter-maturity municipal bonds produced modestly positive returns for the six-month period but underperformed longer-maturity bonds. The fund’s relative results were helped by our yield curve positioning and underweight to the prerefunded debt sector. However, our security selection in general obligation (GO) bonds detracted from relative performance. The fund’s net asset value was $5.53 at the end of August, unchanged from six months earlier. Dividends per share contributed $0.04 to the fund’s total return during the six-month period.

The fund’s duration—a measure of interest rate risk—remained in line with that of its peer group. However, the fund’s duration position was modestly shorter than the duration of the passive benchmark, the Bloomberg Barclays 1–5 Year Blend (1–6 Year Maturity) Index. Our positioning along the yield curve contributed to relative performance, most notably our overweight to bonds with 10-year maturities.

Most of our new purchases were designed to reduce the portfolio’s underweight to bonds maturing in three to five years. We believe that we are well positioned for a rising rate environment, as about a third of the fund matures within two years, allowing us to reinvest the proceeds at higher yields fairly quickly.

While our preference for revenue bonds over GOs remains intact as a result of our concerns about the considerable unfunded pension and other post-employment benefit (OPEB) liabilities that many state and local government issuers face, it has become challenging to find opportunities in revenue debt over the past couple of years in the short- to intermediate-term municipal market. As a result, we are overweight GOs from high-quality states that do not have large near-term pension funding problems, including Washington, Florida, and Minnesota. Notable purchases over the reporting period included GO bonds issued out of Minnesota and Wisconsin. (Please refer to the fund’s portfolio of investments for a complete list of holdings and the amount each represents in the portfolio.)

Within the revenue sector, health care and transportation remained the fund’s largest allocations and overweights relative to the index. The two sectors together accounted for about one-third of the fund’s net assets at the end of the reporting period, as we continue to like the fundamental credit quality of both health care and transportation revenue bonds. However, credit spreads in these sectors have moved to very narrow levels. While we do not anticipate reducing our exposure to health care or transportation, we have not been finding much value given their tight spread levels. We were able to participate in several prepaid gas deals with shorter maturities that fit well in the portfolio.

We continued to overweight lower-quality investment-grade bonds, particularly those in the A and BBB credit quality categories. We believe bonds in these quality tiers offer greater value than their higher-quality counterparts and are an area where our dedicated municipal credit research team can find opportunities to build incremental risk-adjusted yield into the portfolio.

We believe that the municipal bond market remains a high-quality market that offers good opportunities for long-term investors seeking tax-free income. While the uncertainty around the long-term impact of tax reform and the increased chance of rising yields represent near-term headwinds for broad muni market performance, we believe fundamentals are sound overall, and global economic uncertainties could spur demand for the asset class.

As the Fed continues on the path to interest rate normalization, muni bond yields are likely to increase along with Treasury yields—although probably not to the same extent. While higher yields pressure bond prices, munis should be less susceptible to slowly rising rates than Treasuries given their attractive tax-equivalent yields and the steady demand for tax-exempt income.

While we believe that many states deserve high credit ratings and will be able to continue servicing their debts, we have longer-term concerns about significant funding shortfalls for pensions and OPEB obligations in some jurisdictions. Although few large plans are at risk of insolvency in the near term, the magnitude of unfunded liabilities is becoming more conspicuous in a few states. Ultimately, we believe independent credit research is our greatest strength and will remain an asset for our investors as we navigate the current market environment.

The fund seeks to provide a high level of income exempt from federal income taxes by investing primarily in long-term investment-grade municipal securities.

The Tax-Free Income Fund returned 1.53% for the six months ended August 31, 2018, modestly underperforming the Lipper General & Insured Municipal Debt Funds Average. (Results for Advisor and I Class shares varied slightly, reflecting their different fee structures. Past performance cannot guarantee future results.)

The fund lagged its peer group and the Bloomberg Barclays Municipal Bond Index during the period as security selection and yield curve positioning detracted from relative results. Our overweight allocation to health care bonds contributed to relative performance as the segment outpaced the broader index. The fund’s net asset value was $9.95 at the end of August, down from $9.98 six months earlier. Dividends per share contributed $0.18 to the fund’s total return during the six-month period.

Our avoidance of some of the more speculative and lower-quality names in the market contributed to underperformance versus our peers as these bonds performed well. The strong performance of lower-rated bonds has been a persistent theme over the past few years as low interest rates and narrow credit spreads have encouraged many investors to look for yield in lower-quality parts of the market.

We remained cautious on interest rate risk over the past six months and left the fund’s duration mostly unchanged, ending the period at 4.4 years, which is shorter than both the Bloomberg Barclays Municipal Bond Index and the Lipper peer group average. Our conservative duration positioning modestly detracted from relative performance as the yield curve flattened over the six-month period.

As for yield curve positioning, we believe that longer-maturity revenue bonds represent the best long-term value in the municipal market. However, we maintained a “barbell” structure, with an allocation to shorter-maturity bonds that offer more liquidity. This allocation, which includes high-quality prerefunded bonds, was a drag on relative performance over the period as longer-maturity bonds outperformed. Overall, we are seeking the right balance between investing in higher yields and keeping interest rate risk in the low to moderate range.

Our preference for revenue bonds over general obligation debt remained intact as a result of our longer-term concern that many municipalities will face fiscal challenges related to unfunded pension and other post-employment benefit (OPEB) liabilities. Within the revenue sector, health care and transportation, which typically offer above-average yields, remained our largest allocations and together made up about 49% of the fund’s net assets at the end of the reporting period. The fund’s allocation to health care increased by more than one percentage point over the reporting period as we purchased bonds issued by Maryland Health and Higher Education Authority for Medstar Health and Greeneville Tennessee Health and Higher Education Facilities for Ballad Health. (Please refer to the fund’s portfolio of investments for a complete list of holdings and the amount each represents in the portfolio.)

The tobacco sector continued to demonstrate strong returns. While we still view this area of the market as somewhat challenged from a credit perspective and remain underweight relative to our peers, we increased our allocation marginally by purchasing Tobacco Settlement Financing Corp. of New Jersey and Golden State Tobacco Securitization Corp. California Tobacco Settlement.

It has become challenging to find opportunities in revenue debt over the past couple of years with short- to intermediate-term maturities. As a result, we were pleased to be able to participate in several prepaid gas deals with shorter maturities over the six-month period. Notable trades included Southeast Alabama Gas Supply and Tennessee State Energy Acquisition Corporation.

The portfolio’s sales were muted as we sought to stay fully invested and keep cash at a minimal level. However, we did reduce our prerefunded allocation and replaced these higher-quality, lower-yielding bonds with securities that offer better risk-adjusted yields.

The fund’s credit quality profile was largely unchanged during the reporting period. We maintained an overweight to A and BBB rated debt as we believe this is an area where our credit research team can find investment opportunities that offer incremental risk-adjusted yield. We also kept modest exposure to below investment-grade and unrated bonds, which provides further credit quality diversification.

The fund seeks to provide a high level of income exempt from federal income taxes by investing primarily in long-term low- to upper-medium-grade municipal securities.

The Tax-Free High Yield Fund returned 2.21% for the six months ended August 31, 2018, underperforming the Lipper High Yield Municipal Debt Funds Average. (Results for Advisor and I Class shares varied slightly, reflecting their different fee structures. Past performance cannot guarantee future results.)

The investment environment for medium- and lower-quality municipals has remained firm, as persistently low interest rates and a benign credit backdrop drive demand for securities with credit risk even as the Fed moves to normalize short-term rates. In this environment, some of the issuers with the weakest credit quality in the muni market posted outsized returns. In particular, the recovery of two long-term, distressed segments of the municipal market—Puerto Rico debt and tobacco securitization bonds—dominated returns. Our conservative positioning in these two areas versus our more aggressive competitors detracted from relative results.

Prices of almost all Puerto Rico-related bonds bounced sharply over the six-month period, as prospects for a consensual agreement between a variety of creditor classes brightened. The biggest winner was COFINA bonds, which are backed by sales taxes (both senior and subordinate liens), as a tentative framework to split the sales and use tax appeared to be reached with general obligation (GO) bondholders. However, we believe that significant legal hurdles remain in finalizing this arrangement. On the positive side, our investments in Puerto Rico’s utilities (PREPA and PRASA) also rebounded notably but did not offset the drag from our overall conservative positioning in Puerto Rico bonds. Unlike most commonwealth credits, PRASA, the water and sewer authority, has not missed a payment on its senior debt obligations to date. (Please refer to the fund’s portfolio of investments for a complete list of holdings and the amount each represents in the portfolio.)

Tobacco securitization bonds also significantly outperformed the market for the six-month period as two high-profile tobacco issuers, New Jersey and Golden State (California), successfully refinanced their low-rated debt without impairment. As a result, many of the weakest structures in the tobacco market, most notably long-maturity, subordinate zero-coupon bonds, rallied sharply. We have strategically skewed our tobacco holdings toward the most durable structures as we expect fundamentals for this sector to remain pressured. In 2018, we have begun to see reacceleration of tobacco consumption declines driven by technological changes such as smokeless vaping devices as well as cessation efforts, and we expect this trend to continue. However, for the reporting period our cautious stance in the segment went unrewarded.

We maintained a considerable overweight position in revenue bonds backed by transportation projects, such as toll roads and airports. We continue to like the fundamental credit metrics for many of these projects, including the durability of their long-term revenue streams and limited direct competition from other projects (a unique element of municipal finance). Further, we believe these projects remain largely insulated from the pension funding issues faced by many large GO borrowers in the muni market.

We remain notably underweight in GOs as many state and local borrowers grapple with their long-term liabilities for public pensions and other benefits for employees. We believe that the municipal market is in the early stages of repricing risk premiums for state and local borrowers, especially those that have not appropriately addressed these challenges. The fund benefited from its exposure to GOs from the state of Illinois and the City of Chicago for the period. Unlike in 2017, Illinois successfully passed a 2018 budget and addressed its significant backlog in receivables. Chicago bonds benefited from the market’s acceptance of the city’s newly crafted sales tax bonds, which lowered its future borrowing costs. We retain a cautious posture toward GOs but will continue to look for these “fallen angel” opportunities.

As fundamental investors driven by our research-intensive process, we remain healthy skeptics of the ability of some of the weakest issuers in the high yield municipal market to extend their recent run of outsized returns. As always, we will rely on our proven investment process in our efforts to add value over full market cycles.

While we believe that many states deserve high credit ratings and will be able to continue servicing their debts, we have longer-term concerns about significant funding shortfalls for pensions and other post-employment benefit obligations in some jurisdictions. Although few large plans are at risk of insolvency in the near term, the magnitude of unfunded liabilities is becoming more conspicuous in a few states. Ultimately, we believe independent credit research is our greatest strength and will remain an asset for our investors as we navigate the current market environment.

The fund seeks to provide a high level of income exempt from federal income taxes.

The Intermediate Tax-Free High Yield Fund returned 1.72% for the six months ended August 31, 2018, underperforming the Lipper High Yield Municipal Debt Funds Average. (Results for Advisor and I Class shares varied slightly, reflecting their different fee structures. Past performance cannot guarantee future results.)

The investment environment for medium- and lower-quality municipals has remained firm, as persistently low interest rates and a benign credit backdrop drive demand for securities with credit risk even as the Fed moves to normalize short-term rates. In this environment, some of the issuers with the weakest credit quality in the muni market posted outsized returns. In particular, the recovery of a select few distressed segments of the intermediate-term high yield municipal market—Puerto Rico debt, tobacco securitization bonds, and debt backed by bankrupt utility First Energy Solutions—dominated returns. Our conservative positioning in these areas versus our more aggressive competitors detracted from relative results.

Prices of almost all Puerto Rico-related bonds bounced sharply over the six-month period, as prospects for a consensual agreement between a variety of creditor classes brightened. The biggest winner was COFINA bonds, which are backed by sales taxes (both senior and subordinate liens), as a tentative framework to split the sales and use tax appeared to be reached with general obligation (GO) bondholders. However, we believe that significant legal hurdles remain in finalizing this arrangement. On the positive side, our holdings of bonds issued by PRASA, Puerto Rico’s water and sewer authority, were top performers for the period. Unlike most commonwealth credits, PRASA has not missed a payment on its senior debt obligations to date. Our holdings of insured Puerto Rico debt also outpaced the market, but the positions in PRASA and insured Puerto Rico bonds did not offset the drag from our overall conservative positioning in Puerto Rico. (Please refer to the fund’s portfolio of investments for a complete list of holdings and the amount each represents in the portfolio.)

Pollution control revenue bonds issued by First Energy Solutions gained notably during the period, as market participants priced in a higher expected recovery for asset sales by the utility, which filed for bankruptcy in April. Although our lack of exposure to this large issuer weighed on relative returns in the six-month period, the fund has benefited from this conservative positioning over the longer term.

While we believe that many states deserve high credit ratings and will be able to continue servicing their debts, we have longer-term concerns about significant funding shortfalls for pensions and other post-employment benefit obligations in some jurisdictions. Although few large plans are at risk of insolvency in the near term, the magnitude of unfunded liabilities is becoming more conspicuous in a few states. Ultimately, we believe independent credit research is our greatest strength and will remain an asset for our investors as we navigate the current market environment.

The views expressed reflect the opinions of T. Rowe Price as of the date of this report and are subject to change based on changes in market, economic, or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.

You could lose money by investing in the Fund. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The Fund may impose a fee upon the sale of your shares or may temporarily suspend your ability to sell shares if the Fund’s liquidity falls below required minimums because of market conditions or other factors. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund’s sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time.

Bonds are subject to interest rate risk (the decline in bond prices that usually accompanies a rise in interest rates) and credit risk (the chance that any fund holding could have its credit rating downgraded or that a bond issuer will default by failing to make timely payments of interest or principal), potentially reducing the fund’s income level and share price. High yield bonds could have greater price declines than funds that invest primarily in high-quality bonds. Municipalities issuing high yield bonds are not as strong financially as those with higher credit ratings, so the bonds are usually considered speculative investments. Some income may be subject to state and local taxes and the federal alternative minimum tax.

This chart shows the value of a hypothetical $10,000 investment in the fund over the past 10 fiscal year periods or since inception (for funds lacking 10-year records). The result is compared with benchmarks, which include a broad-based market index and may also include a peer group average or index. Market indexes do not include expenses, which are deducted from fund returns as well as mutual fund averages and indexes.

As a mutual fund shareholder, you may incur two types of costs: (1) transaction costs, such as redemption fees or sales loads, and (2) ongoing costs, including management fees, distribution and service (12b-1) fees, and other fund expenses. The following example is intended to help you understand your ongoing costs (in dollars) of investing in the fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 invested at the beginning of the most recent six-month period and held for the entire period.

Please note that the Intermediate Tax-Free High Yield Fund, Tax-Free High Yield Fund, Tax-Free Income Fund, and Tax-Free Short-Intermediate Fund and have three share classes: The original share class (Investor Class) charges no distribution and service (12b-1) fee, the Advisor Class shares are offered only through unaffiliated brokers and other financial intermediaries and charge a 0.25% 12b-1 fee, and the I Class shares are available to institutionally oriented clients and impose no 12b-1 or administrative fee payment. The Tax-Exempt Money Fund has two share classes: The original share class (Investor Class) charges no distribution and service (12b-1) fee, and the I Class shares are also available to institutionally oriented clients and impose no 12b-1 or administrative fee payment. Each share class is presented separately in the table.

Actual Expenses
The first line of the following table (Actual) provides information about actual account values and actual expenses. You may use the information on this line, together with your account balance, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number on the first line under the heading “Expenses Paid During Period” to estimate the expenses you paid on your account during this period.

Hypothetical Example for Comparison Purposes
The information on the second line of the table (Hypothetical) is based on hypothetical account values and expenses derived from the fund’s actual expense ratio and an assumed 5% per year rate of return before expenses (not the fund’s actual return). You may compare the ongoing costs of investing in the fund with other funds by contrasting this 5% hypothetical example and the 5% hypothetical examples that appear in the shareholder reports of the other funds. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period.

Note: T. Rowe Price charges an annual account service fee of $20, generally for accounts with less than $10,000. The fee is waived for any investor whose T. Rowe Price mutual fund accounts total $50,000 or more; accounts electing to receive electronic delivery of account statements, transaction confirmations, prospectuses, and shareholder reports; or accounts of an investor who is a T. Rowe Price Personal Services or Enhanced Personal Services client (enrollment in these programs generally requires T. Rowe Price assets of at least $250,000). This fee is not included in the accompanying table. If you are subject to the fee, keep it in mind when you are estimating the ongoing expenses of investing in the fund and when comparing the expenses of this fund with other funds.

You should also be aware that the expenses shown in the table highlight only your ongoing costs and do not reflect any transaction costs, such as redemption fees or sales loads. Therefore, the second line of the table is useful in comparing ongoing costs only and will not help you determine the relative total costs of owning different funds. To the extent a fund charges transaction costs, however, the total cost of owning that fund is higher.

T. Rowe Price Tax-Free Short-Intermediate Fund, Inc. (the fund) is registered under the Investment Company Act of 1940 (the 1940 Act) as a diversified, open-end management investment company. The fund seeks to provide, consistent with modest price fluctuation, a high level of income exempt from federal income taxes by investing primarily in short-and intermediate-term investment-grade municipal securities. The fund has three classes of shares: the Tax-Free Short-Intermediate Fund (Investor Class), the Tax-Free Short-Intermediate Fund–Advisor Class (Advisor Class), and the Tax-Free Short-Intermediate Fund–I Class (I Class). Advisor Class shares are sold only through unaffiliated brokers and other unaffiliated financial intermediaries. I Class shares generally are available only to investors meeting a $1,000,000 minimum investment or certain other criteria. The Advisor Class operates under a Board-approved Rule 12b-1 plan pursuant to which the class compensates financial intermediaries for distribution, shareholder servicing, and/or certain administrative services; the Investor and I Classes do not pay Rule 12b-1 fees. Each class has exclusive voting rights on matters related solely to that class; separate voting rights on matters that relate to all classes; and, in all other respects, the same rights and obligations as the other classes.

Basis of Preparation The fund is an investment company and follows accounting and reporting guidance in the Financial Accounting Standards Board (FASB) Accounting Standards Codification Topic 946 (ASC 946). The accompanying financial statements were prepared in accordance with accounting principles generally accepted in the United States of America (GAAP), including, but not limited to, ASC 946. GAAP requires the use of estimates made by management. Management believes that estimates and valuations are appropriate; however, actual results may differ from those estimates, and the valuations reflected in the accompanying financial statements may differ from the value ultimately realized upon sale or maturity.

Investment Transactions, Investment Income, and Distributions Investment transactions are accounted for on the trade date basis. Income and expenses are recorded on the accrual basis. Realized gains and losses are reported on the identified cost basis. Premiums and discounts on debt securities are amortized for financial reporting purposes. Income tax-related interest and penalties, if incurred, are recorded as income tax expense. Income distributions are declared by each class daily and paid monthly. Distributions to shareholders are recorded on the ex-dividend date. A capital gain distribution may also be declared and paid by the fund annually.

Class Accounting Shareholder servicing, prospectus, and shareholder report expenses incurred by each class are charged directly to the class to which they relate. Expenses common to all classes and investment income are allocated to the classes based upon the relative daily net assets of each class’s settled shares; realized and unrealized gains and losses are allocated based upon the relative daily net assets of each class’s outstanding shares. To the extent any expenses are waived or reimbursed in accordance with an expense limitation (see Note 5), the waiver or reimbursement is charged to the applicable class or allocated across the classes in the same manner as the related expense. The Advisor Class pays Rule 12b-1 fees, in an amount not exceeding 0.25% of the class’s average daily net assets.

New Accounting Guidance In March 2017, the FASB issued amended guidance to shorten the amortization period for certain callable debt securities held at a premium. The guidance is effective for fiscal years and interim periods beginning after December 15, 2018. Adoption will have no effect on the fund’s net assets or results of operations.

Indemnification In the normal course of business, the fund may provide indemnification in connection with its officers and directors, service providers, and/or private company investments. The fund’s maximum exposure under these arrangements is unknown; however, the risk of material loss is currently considered to be remote.

The fund’s financial instruments are valued and each class’s net asset value (NAV) per share is computed at the close of the New York Stock Exchange (NYSE), normally 4 p.m. ET, each day the NYSE is open for business. However, the NAV per share may be calculated at a time other than the normal close of the NYSE if trading on the NYSE is restricted, if the NYSE closes earlier, or as may be permitted by the SEC.

Fair Value The fund’s financial instruments are reported at fair value, which GAAP defines as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The T. Rowe Price Valuation Committee (the Valuation Committee) is an internal committee that has been delegated certain responsibilities by the fund’s Board of Directors (the Board) to ensure that financial instruments are appropriately priced at fair value in accordance with GAAP and the 1940 Act. Subject to oversight by the Board, the Valuation Committee develops and oversees pricing-related policies and procedures and approves all fair value determinations. Specifically, the Valuation Committee establishes procedures to value securities; determines pricing techniques, sources, and persons eligible to effect fair value pricing actions; oversees the selection, services, and performance of pricing vendors; oversees valuation-related business continuity practices; and provides guidance on internal controls and valuation-related matters. The Valuation Committee reports to the Board and has representation from legal, portfolio management and trading, operations, risk management, and the fund’s treasurer.

Various valuation techniques and inputs are used to determine the fair value of financial instruments. GAAP establishes the following fair value hierarchy that categorizes the inputs used to measure fair value:

Level 1 – quoted prices (unadjusted) in active markets for identical financial instruments that the fund can access at the reporting date

Level 2 – inputs other than Level 1 quoted prices that are observable, either directly or indirectly (including, but not limited to, quoted prices for similar financial instruments in active markets, quoted prices for identical or similar financial instruments in inactive markets, interest rates and yield curves, implied volatilities, and credit spreads)

Observable inputs are developed using market data, such as publicly available information about actual events or transactions, and reflect the assumptions that market participants would use to price the financial instrument. Unobservable inputs are those for which market data are not available and are developed using the best information available about the assumptions that market participants would use to price the financial instrument. GAAP requires valuation techniques to maximize the use of relevant observable inputs and minimize the use of unobservable inputs. When multiple inputs are used to derive fair value, the financial instrument is assigned to the level within the fair value hierarchy based on the lowest-level input that is significant to the fair value of the financial instrument. Input levels are not necessarily an indication of the risk or liquidity associated with financial instruments at that level but rather the degree of judgment used in determining those values.

Valuation Techniques Debt securities generally are traded in the over-the-counter (OTC) market and are valued at prices furnished by dealers who make markets in such securities or by an independent pricing service, which considers the yield or price of bonds of comparable quality, coupon, maturity, and type, as well as prices quoted by dealers who make markets in such securities. Generally, debt securities are categorized in Level 2 of the fair value hierarchy; however, to the extent the valuations include significant unobservable inputs, the securities would be categorized in Level 3.

Assets and liabilities other than financial instruments, including short-term receivables and payables, are carried at cost, or estimated realizable value, if less, which approximates fair value.

Thinly traded financial instruments and those for which the above valuation procedures are inappropriate or are deemed not to reflect fair value are stated at fair value as determined in good faith by the Valuation Committee. The objective of any fair value pricing determination is to arrive at a price that could reasonably be expected from a current sale. Financial instruments fair valued by the Valuation Committee are primarily private placements, restricted securities, warrants, rights, and other securities that are not publicly traded.

Subject to oversight by the Board, the Valuation Committee regularly makes good faith judgments to establish and adjust the fair valuations of certain securities as events occur and circumstances warrant. For instance, in determining the fair value of troubled or thinly traded debt instruments, the Valuation Committee considers a variety of factors, which may include, but are not limited to, the issuer’s business prospects, its financial standing and performance, recent investment transactions in the issuer, strategic events affecting the company, market liquidity for the issuer, and general economic conditions and events. In consultation with the investment and pricing teams, the Valuation Committee will determine an appropriate valuation technique based on available information, which may include both observable and unobservable inputs. The Valuation Committee typically will afford greatest weight to actual prices in arm’s length transactions, to the extent they represent orderly transactions between market participants; transaction information can be reliably obtained; and prices are deemed representative of fair value. However, the Valuation Committee may also consider other valuation methods such as a discount or premium from market value of a similar, freely traded security of the same issuer; discounted cash flows; yield to maturity; or some combination. Fair value determinations are reviewed on a regular basis and updated as information becomes available, including actual purchase and sale transactions of the issue. Because any fair value determination involves a significant amount of judgment, there is a degree of subjectivity inherent in such pricing decisions, and fair value prices determined by the Valuation Committee could differ from those of other market participants. Depending on the relative significance of unobservable inputs, including the valuation technique(s) used, fair valued securities may be categorized in Level 2 or 3 of the fair value hierarchy.

Valuation Inputs On August 31, 2018, all of the fund’s financial instruments were classified as Level 2, based on the inputs used to determine their fair values. There were no material transfers between Levels 1 and 2 during the six months ended August 31, 2018.

Consistent with its investment objective, the fund engages in the following practices to manage exposure to certain risks or to enhance performance. The investment objective, policies, program, and risk factors of the fund are described more fully in the fund’s prospectus and Statement of Additional Information.

Restricted Securities The fund may invest in securities that are subject to legal or contractual restrictions on resale. Prompt sale of such securities at an acceptable price may be difficult and may involve substantial delays and additional costs.

Other Purchases and sales of portfolio securities other than short-term securities aggregated $227,466,000 and $295,051,000, respectively, for the six months ended August 31, 2018.

No provision for federal income taxes is required since the fund intends to continue to qualify as a regulated investment company under Subchapter M of the Internal Revenue Code and distribute to shareholders all of its income and gains. Distributions determined in accordance with federal income tax regulations may differ in amount or character from net investment income and realized gains for financial reporting purposes. Financial reporting records are adjusted for permanent book/tax differences to reflect tax character but are not adjusted for temporary differences. The amount and character of tax-basis distributions and composition of net assets are finalized at fiscal year-end; accordingly, tax-basis balances have not been determined as of the date of this report.

The fund intends to retain realized gains to the extent of available capital loss carryforwards. Net realized capital losses may be carried forward indefinitely to offset future realized capital gains. As of February 28, 2018, the fund had $536,000 of available capital loss carryforwards.

At August 31, 2018, the cost of investments for federal income tax purposes was $1,958,475,000. Net unrealized loss aggregated $2,702,000 at period-end, of which $8,246,000 related to appreciated investments and $10,948,000 related to depreciated investments.

The fund is managed by T. Rowe Price Associates, Inc. (Price Associates), a wholly owned subsidiary of T. Rowe Price Group, Inc. (Price Group). The investment management agreement between the fund and Price Associates provides for an annual investment management fee, which is computed daily and paid monthly. The fee consists of an individual fund fee, equal to 0.10% of the fund’s average daily net assets, and a group fee. The group fee rate is calculated based on the combined net assets of certain mutual funds sponsored by Price Associates (the group) applied to a graduated fee schedule, with rates ranging from 0.48% for the first $1 billion of assets to 0.265% for assets in excess of $650 billion. The fund’s group fee is determined by applying the group fee rate to the fund’s average daily net assets. At August 31, 2018, the effective annual group fee rate was 0.29%.

The I Class is subject to an operating expense limitation (I Class limit) pursuant to which Price Associates is contractually required to pay all operating expenses of the I Class, excluding management fees, interest, expenses related to borrowings, taxes, brokerage, and other non-recurring expenses permitted by the investment management agreement, to the extent such operating expenses, on an annualized basis, exceed 0.05% of average net assets. This agreement will continue until June 30, 2019, and may be renewed, revised, or revoked only with approval of the fund’s Board. The I Class is required to repay Price Associates for expenses previously paid to the extent the class’s net assets grow or expenses decline sufficiently to allow repayment without causing the class’s operating expenses (after the repayment is taken into account) to exceed both: (1) the expense limitation in place at the time such amounts were paid; and (2) the class’s current expense limitation. However, no repayment will be made more than three years after the date of a payment or waiver. For the six months ended August 31, 2018, the I Class operated below its expense limitation.

In addition, the fund has entered into service agreements with Price Associates and a wholly owned subsidiary of Price Associates, each an affiliate of the fund (collectively, Price). Price Associates provides certain accounting and administrative services to the fund. T. Rowe Price Services, Inc., provides shareholder and administrative services in its capacity as the fund’s transfer and dividend-disbursing agent. For the six months ended August 31, 2018, expenses incurred pursuant to these service agreements were $45,000 for Price Associates and $113,000 for T. Rowe Price Services, Inc. All amounts due to and due from Price, exclusive of investment management fees payable, are presented net on the accompanying Statement of Assets and Liabilities.

As of August 31, 2018, T. Rowe Price Group, Inc., or its wholly owned subsidiaries owned 34,412,351 shares of the Investor Class, representing 12% of the Investor Class’s net assets.

The fund may participate in securities purchase and sale transactions with other funds or accounts advised by Price Associates (cross trades), in accordance with procedures adopted by the fund’s Board and Securities and Exchange Commission rules, which require, among other things, that such purchase and sale cross trades be effected at the independent current market price of the security. During the six months ended August 31, 2018, the aggregate value of purchases and sales cross trades with other funds or accounts advised by Price Associates was less than 1% of the fund’s net assets as of August 31, 2018.

A description of the policies and procedures used by T. Rowe Price funds and portfolios to determine how to vote proxies relating to portfolio securities is available in each fund’s Statement of Additional Information. You may request this document by calling 1-800-225-5132 or by accessing the SEC’s website, sec.gov.

The description of our proxy voting policies and procedures is also available on our corporate website. To access it, please visit the following Web page:

Scroll down to the section near the bottom of the page that says, “Proxy Voting Policies.” Click on the Proxy Voting Policies link in the shaded box.

Each fund’s most recent annual proxy voting record is available on our website and through the SEC’s website. To access it through T. Rowe Price, visit the website location shown above, and scroll down to the section near the bottom of the page that says, “Proxy Voting Records.” Click on the Proxy Voting Records link in the shaded box.

The fund files a complete schedule of portfolio holdings with the Securities and Exchange Commission for the first and third quarters of each fiscal year on Form N-Q. The fund’s Form N-Q is available electronically on the SEC’s website (sec.gov); hard copies may be reviewed and copied at the SEC’s Public Reference Room, 100 F St. N.E., Washington, DC 20549. For more information on the Public Reference Room, call 1-800-SEC-0330.

Each year, the fund’s Board of Directors (Board) considers the continuation of the investment management agreement (Advisory Contract) between the fund and its investment advisor, T. Rowe Price Associates, Inc. (Advisor), on behalf of the fund. In that regard, at an in-person meeting held on March 5–6, 2018 (Meeting), the Board, including a majority of the fund’s independent directors, approved the continuation of the fund’s Advisory Contract. At the Meeting, the Board considered the factors and reached the conclusions described below relating to the selection of the Advisor and the approval of the Advisory Contract. The independent directors were assisted in their evaluation of the Advisory Contract by independent legal counsel from whom they received separate legal advice and with whom they met separately.

In providing information to the Board, the Advisor was guided by a detailed set of requests for information submitted by independent legal counsel on behalf of the independent directors. In considering and approving the Advisory Contract, the Board considered the information it believed was relevant, including, but not limited to, the information discussed below. The Board considered not only the specific information presented in connection with the Meeting but also the knowledge gained over time through interaction with the Advisor about various topics. The Board meets regularly and, at each of its meetings, covers an extensive agenda of topics and materials and considers factors that are relevant to its annual consideration of the renewal of the T. Rowe Price funds’ advisory contracts, including performance and the services and support provided to the funds and their shareholders.

Services Provided by the Advisor
The Board considered the nature, quality, and extent of the services provided to the fund by the Advisor. These services included, but were not limited to, directing the fund’s investments in accordance with its investment program and the overall management of the fund’s portfolio, as well as a variety of related activities such as financial, investment operations, and administrative services; compliance; maintaining the fund’s records and registrations; and shareholder communications. The Board also reviewed the background and experience of the Advisor’s senior management team and investment personnel involved in the management of the fund, as well as the Advisor’s compliance record. The Board concluded that it was satisfied with the nature, quality, and extent of the services provided by the Advisor.

Investment Performance of the Fund
The Board took into account discussions with the Advisor and reports that it receives throughout the year relating to fund performance. In connection with the Meeting, the Board reviewed the fund’s net annualized total returns for the 1-, 2-, 3-, 4-, 5-, and 10-year periods as of September 30, 2017, and compared these returns with the performance of a peer group of funds with similar investment programs and a wide variety of other previously agreed-upon comparable performance measures and market data, including those supplied by Broadridge, which is an independent provider of mutual fund data.

On the basis of this evaluation and the Board’s ongoing review of investment results, and factoring in the relative market conditions during certain of the performance periods, the Board concluded that the fund’s performance was satisfactory.

Costs, Benefits, Profits, and Economies of Scale
The Board reviewed detailed information regarding the revenues received by the Advisor under the Advisory Contract and other benefits that the Advisor (and its affiliates) may have realized from its relationship with the fund, including any research received under “soft dollar” agreements and commission-sharing arrangements with broker-dealers. The Board considered that the Advisor may receive some benefit from soft-dollar arrangements pursuant to which research is received from broker-dealers that execute the fund’s portfolio transactions. The Board received information on the estimated costs incurred and profits realized by the Advisor from managing the T. Rowe Price funds. The Board also reviewed estimates of the profits realized from managing the fund in particular, and the Board concluded that the Advisor’s profits were reasonable in light of the services provided to the fund.

The Board also considered whether the fund benefits under the fee levels set forth in the Advisory Contract from any economies of scale realized by the Advisor. Under the Advisory Contract, the fund pays a fee to the Advisor for investment management services composed of two components—a group fee rate based on the combined average net assets of most of the T. Rowe Price funds (including the fund) that declines at certain asset levels and an individual fund fee rate based on the fund’s average daily net assets—and the fund pays its own expenses of operations. The Board concluded that the advisory fee structure for the fund continued to provide for a reasonable sharing of benefits from any economies of scale with the fund’s investors.

Fees and Expenses
The Board was provided with information regarding industry trends in management fees and expenses. Among other things, the Board reviewed data for peer groups that were compiled by Broadridge, which compared: (i) contractual management fees, total expenses, actual management fees, and nonmanagement expenses of the Investor Class of the fund with a group of competitor funds selected by Broadridge (Investor Class Expense Group); (ii) total expenses and actual management fees of the Advisor Class of the fund with a group of competitor funds selected by Broadridge (Advisor Class Expense Group); and (iii) total expenses, actual management fees, and nonmanagement expenses of the Investor Class of the fund with a broader set of funds within the Lipper investment classification (Expense Universe). The Board considered the fund’s contractual management fee rate, actual management fee rate (which reflects the management fees actually received from the fund by the Advisor after any applicable waivers, reductions, or reimbursements), operating expenses, and total expenses (which reflect the net total expense ratio of the fund after any waivers, reductions, or reimbursements) in comparison with the information for the Broadridge peer groups. Broadridge generally constructed the peer groups by seeking the most comparable funds based on similar investment classifications and objectives, expense structure, asset size, and operating components and attributes and ranked funds into quintiles, with the first quintile representing the funds with the lowest relative expenses and the fifth quintile representing the funds with the highest relative expenses. The information provided to the Board indicated that the fund’s contractual management fee ranked in the third quintile (Investor Class Expense Group), the fund’s actual management fee rate ranked in the third quintile (Investor Class Expense Group) and fourth quintile (Advisor Class Expense Group and Expense Universe), and the fund’s total expenses ranked in the second and fourth quintiles (Investor Class Expense Group), first quintile (Advisor Class Expense Group), and second and fourth quintiles (Expense Universe).

The Board also reviewed the fee schedules for institutional accounts and private accounts with similar mandates that are advised or subadvised by the Advisor and its affiliates. Management provided the Board with information about the Advisor’s responsibilities and services provided to subadvisory and other institutional account clients, including information about how the requirements and economics of the institutional business are fundamentally different from those of the mutual fund business. The Board considered information showing that the Advisor’s mutual fund business is generally more complex from a business and compliance perspective than its institutional account business and considered various relevant factors, such as the broader scope of operations and oversight, more extensive shareholder communication infrastructure, greater asset flows, heightened business risks, and differences in applicable laws and regulations associated with the Advisor’s proprietary mutual fund business. In assessing the reasonableness of the fund’s management fee rate, the Board considered the differences in the nature of the services required for the Advisor to manage its mutual fund business versus managing a discrete pool of assets as a subadvisor to another institution’s mutual fund or for an institutional account and that the Advisor generally performs significant additional services and assumes greater risk in managing the fund and other T. Rowe Price funds than it does for institutional account clients.

On the basis of the information provided and the factors considered, the Board concluded that the fees paid by the fund under the Advisory Contract are reasonable.

Approval of the Advisory Contract
As noted, the Board approved the continuation of the Advisory Contract. No single factor was considered in isolation or to be determinative to the decision. Rather, the Board concluded, in light of a weighting and balancing of all factors considered, that it was in the best interests of the fund and its shareholders for the Board to approve the continuation of the Advisory Contract (including the fees to be charged for services thereunder).

A code of ethics, as defined in Item 2 of Form N-CSR, applicable to its principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions is filed as an exhibit to the registrant’s annual Form N-CSR. No substantive amendments were approved or waivers were granted to this code of ethics during the registrant’s most recent fiscal half-year.

(a) Not applicable. The complete schedule of investments is included in Item 1 of this Form N-CSR.

Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies.

Item 9. Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers.

(a) The registrant’s principal executive officer and principal financial officer have evaluated the registrant’s disclosure controls and procedures within 90 days of this filing and have concluded that the registrant’s disclosure controls and procedures were effective, as of that date, in ensuring that information required to be disclosed by the registrant in this Form N-CSR was recorded, processed, summarized, and reported timely.

(b) During the period, the Price Funds’ accounting agent, The Bank of New York Mellon (BNYM), converted the fund’s books and records from a legacy fund accounting system / operating model to a BNYM fund accounting system / operating model.

(a)(1) The registrant’s code of ethics pursuant to Item 2 of Form N-CSR is filed with the registrant’s annual Form N-CSR.

(2) Separate certifications by the registrant's principal executive officer and principal financial officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 and required by Rule 30a-2(a) under the Investment Company Act of 1940, are attached.

(3) Written solicitation to repurchase securities issued by closed-end companies: not applicable.

(b) A certification by the registrant's principal executive officer and principal financial officer, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and required by Rule 30a-2(b) under the Investment Company Act of 1940, is attached.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

T. Rowe Price Tax-Free Short-Intermediate Fund, Inc.

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

		By	/s/ David Oestreicher
			David Oestreicher
			Principal Executive Officer

Date	October 17, 2018


		By	/s/ Catherine D. Mathews
			Catherine D. Mathews
			Principal Financial Officer

Date	October 17, 2018

■	Tax-free municipal bonds posted modestly positive returns in the six-month period ended August 31, 2018, and munis outperformed taxable investment-grade bonds.

■	The longer-term relative performance of the T. Rowe Price Tax-Free Funds remains favorable.

■	We continue to favor bonds backed by a dedicated revenue stream over general obligation debt.

■	While the uncertainty around the long-term impacts of tax reform and the increased chance of rising yields represent near-term headwinds for broad muni market performance, fundamentals are sound overall, and global economic uncertainties could spur demand for the asset class.

/s/ David Oestreicher

David Oestreicher

Principal Executive Officer

October 17, 2018