N-CSRS

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

                                   FORM N-CSR

Investment Company Act file number 811-6073

                        SCUDDER CASH MANAGEMENT PORTFOLIO
                        ---------------------------------
               (Exact Name of Registrant as Specified in Charter)

                   One South Street, Baltimore, Maryland 21202
                  --------------------------------------------
               (Address of Principal Executive Offices) (Zip Code)

        Registrant's Telephone Number, including Area Code: (212) 454-7190
                                                            --------------

                                  Paul Schubert
                                 345 Park Avenue
                               New York, NY 10154
                     ---------------------------------------
                     (Name and Address of Agent for Service)
Date of fiscal year end:        12/31

Date of reporting period:       06/30/2005



ITEM 1.  REPORT TO STOCKHOLDERS

Cash Reserves Fund Institutional

Semiannual Report

to Shareholders

June 30, 2005

Contents

Cash Reserves Fund Institutional
3	Information About Your Fund’s Expenses
5	Portfolio Summary
6	Financial Statements
9	Financial Highlights
10	Notes to Financial Statements
Scudder Cash Management Portfolio
14	Investment Portfolio
19	Financial Statements
22	Financial Highlights
23	Notes to Financial Statements
27	Account Management Resources
28	Privacy Statement

This report must be preceded or accompanied by a prospectus. To obtain a prospectus for any of our funds, refer to the Account Management Resources information provided in the back of this booklet. We advise you to consider the fund’s objectives, risks, charges and expenses carefully before investing. The prospectus contains this and other important information about the fund. Please read the prospectus carefully before you invest.

An investment in this fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the fund. Please read this fund’s prospectus for specific details regarding its risk profile.

Deutsche Asset Management is the marketing name in the US for the asset management activities of Deutsche Bank AG, Deutsche Investment Management Americas Inc., Deutsche Asset Management Inc., Deutsche Asset Management Investment Services Ltd., Deutsche Bank Trust Company Americas and Scudder Trust Company.

Fund shares are not FDIC-insured and are not deposits or other obligations of, or guaranteed by, any bank. Fund shares involve investment risk, including possible loss of principal.

2   Cash Reserves Fund Institutional

Information About Your Fund’s Expenses

As an investor of the Fund, you incur two types of costs: ongoing expenses and transaction costs. Ongoing expenses include management fees and other Fund expenses. Examples of transaction costs include sales charges (loads), redemption fees and account maintenance fees, which are not shown in this section. The following tables are intended to help you understand your ongoing expenses (in dollars) of investing in the Fund and to help you compare these expenses with the ongoing expenses of investing in other mutual funds. In the most recent six-month period, the Fund limited these expenses; had it not done so, expenses would have been higher. The tables are based on an investment of $1,000 made at the beginning of the six-month period ended June 30, 2005.

The tables illustrate your Fund’s expenses in two ways:

n

Actual Fund Return. This helps you estimate the actual dollar amount of ongoing expenses (but not transaction costs) paid on a $1,000 investment in the Fund using the Fund’s actual return during the period. To estimate the expenses 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 in the “Expenses Paid per $1,000” line.

n

Hypothetical 5% Fund Return. This helps you to compare your Fund’s ongoing expenses (but not transaction costs) with those of other mutual funds using the Fund’s actual expense ratio and a hypothetical rate of return of 5% per year before expenses. Examples using a 5% hypothetical fund return may be found in the shareholder reports of other mutual 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.

Please note that the expenses shown in these tables are meant to highlight your ongoing expenses only and do not reflect any transaction costs. The “Expenses Paid per $1,000” line of the tables is useful in comparing ongoing expenses only and will not help you determine the relative total expense of owning different funds. If these transaction costs had been included, your costs would have been higher.

Cash Reserves Fund Institutional    3

Expenses and Value of a $1,000 Investment 
for the six months ended June 30, 2005

Actual Fund Return
Beginning Account Value 1/1/05	$	1,000.00
Ending Account Value 6/30/05	$	1,013.00
Expenses Paid per $1,000*	$	0.90

Hypothetical 5% Fund Return
Beginning Account Value 1/1/05	$	1,000.00
Ending Account Value 6/30/05	$	1,023.90
Expenses Paid per $1,000*	$	0.90

* Expenses are equal to the Fund’s annualized expense ratio for each share class, multiplied by the average account value over the period, multiplied by the number of days in the most recent six-month period, then divided by 365.

Annualized Expense Ratio
Cash Reserves Fund Institutional	0.18%

For more information, please refer to the Fund’s prospectus.

4   Cash Reserves Fund Institutional

Portfolio Summary

Asset Allocation	6/30/05			12/31/04
Short Term Notes		26	%		20%
Certificates of Deposit and Bank Notes		21	%		23%
Time Deposit		16	%		5%
Commercial Paper		13	%		36%
Repurchase Agreements		6	%		3%
Promissory Notes		5	%		3%
US Government Sponsored Agencies†		5	%		4%
Master Notes		5	%		2%
Funding Agreements		3	%		3%
Asset Backed		—			1%
		100	%		100%

^† Not backed by the full faith and credit of the US Government

Weighted Average Maturity
Cash Reserves Fund Institutional	40 days	32 days
First Tier Institutional Money Fund Average*	33 days	36 days

* The Fund is compared to its respective iMoneyNet category: First Tier Institutional Money Fund Average — Category includes a widely-recognized composite of money market funds that invest in only first tier (highest rating) securities. Portfolio Holdings of First Tier funds include US Treasury, US Other, Repos, Time Deposits, Domestic Bank Obligations, Foreign Bank Obligations, First Tier Commercial Paper, Floating Rate Notes and Asset Backed Commercial Paper.

Asset Allocation is subject to change. For more complete details about the Portfolio’s holdings, see page 14 through 18. A quarterly Fact Sheet is available upon request. Information concerning portfolio holdings of the Portfolio as of month-end will be posted to moneyfunds.deam-us.db.com and Scudder.com on the 15th of the following month. Please see the Account Management Resources section for contact information.

Following the Fund’s fiscal first and third quarter-end, a complete portfolio holdings listing is filed with the SEC on Form N-Q. The form will be available on the SEC’s Web site at www.sec.gov, and it also may be reviewed and copied at the SEC’s Public Reference Room in Washington, D.C. Information on the operation of the SEC’s Public Reference Room may be obtained by calling (800) SEC-0330.

Cash Reserves Fund Institutional    5

Financial Statements

Statement of Assets and Liabilities as of June 30, 2005 (Unaudited)

Assets
Investment in Scudder Cash Management Portfolio at value	$	4,737,023,639
Due from Advisor		21,115
Other assets		23,233
Total assets		4,737,067,987
Liabilities
Payable for Fund shares redeemed		511,697
Dividends payable		3,564,951
Other accrued expenses and payables		29,605
Total liabilities		4,106,253
Net assets, at value	$	4,732,961,734
Net Assets
Net assets consist of:
Undistributed net investment income		345,900
Accumulated net realized gain (loss)		34,168
Paid-in capital		4,732,581,666
Net assets, at value	$	4,732,961,734
Net Asset Value
Net Asset Value and redemption price per share ($4,732,961,734 ÷ 4,732,581,328 outstanding shares of beneficial interest, $.001 par value, unlimited number of shares authorized)	$	1.00

The accompanying notes are an integral part of the financial statements.

6   Cash Reserves Fund Institutional

Statement of Operations for the six months ended June 30, 2005 (Unaudited)

Investment Income
Income:
Net investment income allocated from the Scudder Cash Management Portfolio:
Interest	$	93,336,878
Expenses*		(6,011,494	)
Net investment income allocated from Portfolio		87,325,384
Expenses:
Administrator service fees		1,677,437
Audit fees		9,768
Legal fees		15,428
Trustees’ fees and expenses		15,774
Reports to shareholders		14,957
Registration fees		11,738
Other		30,939
Total expenses, before expense reductions		1,776,041
Expense reductions		(1,776,041	)
Total expenses, after expense reductions		—
Net investment income		87,325,384
Net realized gain (loss) from investments		34,168
Net increase (decrease) in net assets resulting from operations	$	87,359,552

* For the six months ended June 30, 2005, the Advisor to the Scudder Cash Management Portfolio waived fees, of which $922,927 was allocated to the Fund on a pro-rated basis.

The accompanying notes are an integral part of the financial statements.

Cash Reserves Fund Institutional    7

Statement of Changes in Net Assets

	Six Months Ended			Year Ended
	June 30, 2005			December 31,
Increase (Decrease) in Net Assets	(Unaudited)			2004
Operations:
Net investment income	$	87,325,384		$	95,470,569
Net realized gain (loss) on investment transactions		34,168			52,696
Net increase (decrease) in net assets resulting from operations		87,359,552			95,523,265
Distributions to shareholders from:
Net investment income		(87,317,387	)		(95,614,159	)
Fund share transactions:
Proceeds from shares sold		26,687,796,578			59,968,752,267
Reinvestment of distributions		35,957,105			35,384,790
Cost of shares redeemed		(28,712,309,418	)		(61,129,346,039	)
Net increase (decrease) in net assets from Fund share transactions		(1,988,555,735	)		(1,125,208,982	)
Increase (decrease) in net assets		(1,988,513,570	)		(1,125,299,876	)
Net assets at beginning of period		6,721,475,304			7,846,775,180
Net assets at end of period (including undistributed net investment income of $345,900 and $337,903, respectively)	$	4,732,961,734		$	6,721,475,304
Other Information
Shares outstanding at beginning of period		6,721,137,063			7,846,346,045
Shares sold		26,687,796,578			59,968,752,267
Shares issued to shareholders in reinvestment of distributions		35,957,105			35,384,790
Shares redeemed		(28,712,309,418	)		(61,129,346,039	)
Net increase (decrease) in Fund shares		(1,988,555,735	)		(1,125,208,982	)
Shares outstanding at end of period		4,732,581,328			6,721,137,063

The accompanying notes are an integral part of the financial statements.

8   Cash Reserves Fund Institutional

Financial Highlights

Years Ended
December 31,		2005a			2004			2003			2002			2001			2000
Selected Per Share Data
Net asset value, beginning of period		$	1.00		$	1.00		$	1.00		$	1.00		$	1.00		$	1.00
Income from investment operations:
	Net investment income		.013			.013			.011			.017			.04			.06
	Net realized and unrealized gain (loss) on investment transactionsb		—			—			—			—			—			—
	Total from investment operations		.013			.013			.011			.017			.04			.06
Less distributions from:
	Net investment income		(.013	)		(.013	)		(.011	)		(.017	)		(.04	)		(.06	)
Net asset value, end of period		$	1.00		$	1.00		$	1.00		$	1.00		$	1.00		$	1.00
Total Return (%)c			1.30	**		1.26			1.06			1.72			4.22			6.46
Ratios to Average Net Assets and Supplemental Data
Net assets, end of period ($ millions)			4,733			6,721			7,847			6,161			5,136			3,663
Ratio of expenses before expense reductions, including expenses allocated from Scudder Cash Management Portfolio (%)			.26	*		.26			.26			.25			.25			.26
Ratio of expenses after expense reductions, including expenses allocated from Scudder Cash Management Portfolio (%)			.18	*		.18			.18			.18			.18			.18
Ratio of net investment income (%)			2.60	*		1.22			1.03			1.71			4.00			6.33

a	For the six months ended June 30, 2005 (Unaudited).
b	Amount is less than $.0005.
c	Total return would have been lower had certain expenses not been reduced.
*	Annualized
**	Not annualized

Cash Reserves Fund Institutional    9

Notes to Financial Statements (Unaudited)

Note 1—Organization and Significant Accounting Policies

A. Organization

Scudder Institutional Funds (the “Trust”) is registered under the Investment Company Act of 1940, as amended (the “1940 Act”), as an open-end, diversified management investment company organized as a Massachusetts business trust. Cash Reserves Fund Institutional (the “Fund”) is one of several funds the Trust offers to investors.

The Fund seeks to achieve its investment objective by investing substantially all of its assets in the Scudder Cash Management Portfolio (the “Portfolio”), an open-end management investment company registered under the 1940 Act and advised by Deutsche Asset Management, Inc. (“DeAM, Inc.”or the “Advisor”). Details concerning the Portfolio’s investment objective and policies and the risk factors associated with the Portfolio’s investments are described in the Prospectus and Statement of Additional Information.

At June 30, 2005, the Fund owned approximately 55% of the Portfolio. The financial statements of the Portfolio, including the Investment Portfolio, are contained elsewhere in this report and should be read in conjunction with the Fund’s financial statements.

The Fund’s financial statements are prepared in accordance with accounting principles generally accepted in the United States of America which require the use of management estimates. Actual results could differ from those estimates. The policies described below are followed consistently by the Fund in the preparation of its financial statements.

B. Security Valuation

The Fund determines the value of its investment in the Portfolio by multiplying its proportionate ownership of the Portfolio by the total value of the Portfolio’s net assets.

The Portfolio’s policies for determining the value of its net assets are discussed in the Portfolio’s financial statements which accompany this report.

C. Federal Income Taxes

The Fund’s policy is to comply with the requirements of the Internal Revenue Code, as amended, which are applicable to regulated investment companies, and to distribute all of its taxable income to its shareholders. Accordingly, the Fund paid no federal income taxes and no federal income tax provision was required.

10   Cash Reserves Fund Institutional

D. Distribution of Income

Net investment income of the Fund is declared as a daily dividend and is distributed to shareholders monthly.

Permanent book and tax differences relating to shareholder distributions will result in reclassifications to paid in capital. Temporary book and tax differences will reverse in a subsequent period. There were no significant book to tax differences for the Fund.

The tax character of current year distributions will be determined at the end of the current fiscal year.

E. Contingencies

In the normal course of business, the Fund may enter into contracts with service providers that contain general indemnification clauses. The Fund’s maximum exposure under these arrangements is unknown as this would involve future claims that may be made against the Fund that have not yet been made. However, based on experience, the Fund expects the risk of loss to be remote.

F. Other

The Fund receives a daily allocation of the Portfolio’s net investment income and net realized gains and losses in proportion to its investment in the Portfolio. Expenses directly attributed to a fund are charged to that fund, while expenses which are attributable to the Trust are allocated among the funds in the Trust on the basis of relative net assets.

Note 2—Fees and Transactions with Affiliates

Deutsche Asset Management, Inc. (“DeAM, Inc.” or the “Advisor”) is the Advisor for the Portfolio and Investment Company Capital Corp. (“ICCC” or the “Administrator”) is the Administrator for the Fund, both indirect, wholly owned subsidiaries of Deutsche Bank AG. The Fund pays the Administrator an annual fee (“Administrator Service Fee”) based on its average daily net assets which is calculated daily and paid monthly at the annual rate of 0.05%.

For the six months ended June 30, 2005, and through April 30, 2006, the Advisor and Administrator contractually agreed to waive a portion of their fees and/or reimburse expenses of the Fund to the extent necessary to maintain the annualized expenses of the Fund at 0.18%, including expenses of the (excluding extraordinary expenses) Portfolio.

Cash Reserves Fund Institutional    11

Accordingly, for the six months ended June 30, 2005, the Administrator waived all of the Administrator Service Fee as follows:

	Total		Amount		Annualized
	Aggregated		Waived		Effective Rate
Cash Reserves Fund Institutional	$	1,677,437	$	1,677,437		0%

In addition, the Advisor reimbursed the Fund $98,604 for other expenses for the six months ended June 30, 2005.

Typesetting and Filing Service Fees. Under an agreement with Deutsche Investment Management Americas Inc. (“DeIM”), an indirect, wholly owned subsidiary of Deutsche Bank AG, DeIM is compensated for providing typesetting and regulatory filing services to the Fund. For the six months ended June 30, 2005, the amount charged to the Fund by DeIM included in the reports to shareholders aggregated $13,920, of which $5,280 is unpaid at June 30, 2005.

Trustees’ Fees and Expenses. As compensation for his or her services, each Independent Trustee receives an aggregate annual fee, plus a fee for each meeting attended (plus reimbursement for reasonable out-of-pocket expenses incurred in connection with his or her attendance at board and committee meetings) from each Fund in the Fund Complex for which he or she serves. In addition, the Chairman of the Fund Complex’s Audit Committee receives an annual fee for his services. Payment of such fees and expenses is allocated among all such Funds described above in direct proportion to their relative net assets.

Note 3—Concentration of Ownership

From time to time the Fund may have a concentration of several shareholders holding a significant percentage of shares outstanding. Investment activities of these shareholders could have a material impact on the Fund.

At June 30, 2005, there was one shareholder who held 12% of the outstanding shares of the Fund.

Note 4—Regulatory Matters and Litigation

Since at least July 2003, federal, state and industry regulators have been conducting ongoing inquiries and investigations (“inquiries”) into the mutual fund industry, and have requested information from numerous mutual fund companies, including Scudder Investments. It is not possible to determine what the outcome of these inquiries will be or what the effect, if any, would be on the funds or their advisors. Publicity about mutual fund practices arising from these industry-wide inquiries serves as the general basis of a number of private lawsuits against the Scudder funds.

12   Cash Reserves Fund Institutional

These lawsuits, which previously have been reported in the press, involve purported class action and derivative lawsuits, making various allegations and naming as defendants various persons, including certain Scudder funds, the funds’ investment advisors and their affiliates, certain individuals, including in some cases fund Trustees/ Directors, officers, and other parties. Each Scudder fund’s investment advisor has agreed to indemnify the applicable Scudder funds in connection with these lawsuits, or other lawsuits or regulatory actions that may be filed making allegations similar to these lawsuits regarding market timing, revenue sharing, fund valuation or other subjects arising from or related to the pending inquiries. Based on currently available information, the funds’ investment advisors believe the likelihood that the pending lawsuits will have a material adverse financial impact on a Scudder fund is remote and such actions are not likely to materially affect their ability to perform under their investment management agreements with the Scudder funds.

Cash Reserves Fund Institutional    13

Investment Portfolio as of June 30, 2005 (Unaudited)

		Principal
Scudder Cash Management Portfolio		Amount ($)		Value ($)
Certificates of Deposit and Bank Notes 21.2%
Australia & New Zealand Banking Group Ltd., 3.59%, 5/30/2006			25,000,000		25,000,000
Bank of America NA, 2.92%, 8/3/2005			50,000,000		50,000,000
Bank of Tokyo-Mitsubishi, 3.31%, 8/9/2005			200,000,000		200,000,000
BNP Paribas, 3.02%, 8/22/2005			100,000,000		100,000,000
Calyon, 3.27%, 3/6/2006			55,000,000		55,000,000
Depfa Bank PLC:
	3.22%, 2/6/2006		76,000,000		76,000,000
	3.22%, 2/6/2006		25,000,000		25,000,000
	3.25%, 8/26/2005		35,000,000		35,000,000
European Investment Bank, 4.0%, 8/30/2005			75,000,000		75,077,885
HBOS Treasury Services PLC:
	3.04%, 7/5/2005		100,000,000		100,000,000
	3.29%, 9/6/2005		40,000,000		40,000,000
	3.62%, 4/12/2006		60,000,000		60,000,000
HSBC Bank PLC, 6.5%, 1/24/2006			11,550,000		11,757,184
Landesbank Hessen-Thuringen Girozentrale, 3.06%, 7/5/2005			75,000,000		75,000,248
LaSalle Bank NA, 3.59%, 5/30/2006			50,000,000		50,000,000
Societe Generale:
	2.955%, 8/8/2005		35,000,000		35,000,182
	3.045%, 7/1/2005		100,000,000		100,000,000
	3.265%, 3/3/2006		86,000,000		86,000,000
Toronto Dominion Bank:
	3.6%, 6/7/2006		32,000,000		32,000,000
	3.705%, 5/19/2006		10,000,000		10,000,431
	3.72%, 6/7/2006		50,000,000		49,995,451
	3.73%, 6/23/2006		40,000,000		40,000,000
	3.75%, 5/16/2006		21,000,000		20,998,208
UBS AG, 3.045%, 7/1/2005			200,000,000		200,000,000
UniCredito Italiano SpA:
	3.185%, 8/15/2005		150,000,000		150,000,000
	3.73%, 4/12/2006		10,000,000		10,000,000
Wells Fargo Bank NA, 3.1%, 7/8/2005			61,000,000		61,000,000
Total Certificates of Deposit and Bank Notes (Cost $1,772,829,589)					1,772,829,589
US Government Sponsored Agencies 5.2%
Federal Home Loan Mortgage Corp.:
	3.083%*, 10/7/2005		100,000,000		100,000,000
	3.184%*, 11/7/2005		50,000,000		50,000,000

The accompanying notes are an integral part of the financial statements.

14   Scudder Cash Management Portfolio

		Principal
Scudder Cash Management Portfolio		Amount ($)		Value ($)
Federal National Mortgage Association:
	2.84%, 8/3/2005		50,000,000		49,869,833
	3.04%*, 9/7/2006		150,000,000		149,867,710
	3.15%, 2/8/2006		32,000,000		31,914,449
	3.25%*, 12/9/2005		15,000,000		14,995,977
	3.314%*, 12/22/2006		10,000,000		9,991,270
	7.0%, 7/15/2005		30,000,000		30,044,786
Total US Government Sponsored Agencies (Cost $436,684,025)					436,684,025
Short Term Notes* 26.4%
American Express Centurion Bank, 3.111%, 9/1/2005			50,000,000		50,003,225
Australia & New Zealand Banking Group Ltd., 3.28%, 6/23/2010			30,000,000		30,000,000
Beta Finance, Inc., 144A, 3.123%, 4/10/2006			45,000,000		45,011,495
Branch Banking & Trust Co., 3.268%, 3/15/2006			165,000,000		164,968,011
CC (USA), Inc., 3.334%, 11/23/2005			110,000,000		110,021,942
Citigroup, Inc., 3.555%, 3/20/2006			100,000,000		100,121,511
Credit Suisse First Boston, 3.38%, 9/9/2005			50,000,000		50,002,065
Depfa Bank PLC, 3.42%, 9/15/2005			32,000,000		32,000,000
General Electric Capital Corp., 3.6%, 9/23/2005			100,000,000		100,079,651
General Electric Co., 3.211%, 10/24/2005			86,730,000		86,744,475
Greenwich Capital Holdings, Inc.:
	3.15%, 12/5/2005		90,000,000		90,000,000
	3.17%, 11/14/2005		75,000,000		75,000,000
	3.22%, 12/19/2005		50,000,000		50,000,000
Harris Trust & Savings Bank, 3.065%, 2/2/2006			30,000,000		29,999,112
HSBC Finance Corp.:
	3.29%, 3/24/2006		25,000,000		25,000,000
	3.37%, 8/18/2005		50,000,000		50,008,714
International Business Machines Corp., 3.14%, 3/8/2006			66,000,000		65,993,340
K2 (USA) LLC, 3.115%, 12/7/2005			100,000,000		99,984,753
Merrill Lynch & Co., Inc., 3.18%, 1/4/2006			35,000,000		35,000,000
Morgan Stanley:
	3.508%, 11/15/2005		25,000,000		25,000,000
	3.518%, 7/1/2005		30,000,000		30,000,000
National City Bank of Cleveland, 3.285%, 10/31/2005			50,000,000		49,999,124
Nationwide Building Society, 144A, 3.255%, 1/13/2006			45,000,000		45,018,099
Northern Rock PLC, 144A, 3.17%, 7/13/2005			40,000,000		40,000,380
Pfizer, Inc., 144A, 3.12%, 10/7/2005			70,000,000		70,000,000
Royal Bank of Scotland PLC, 3.246%, 9/29/2005			70,000,000		69,992,588
Skandinaviska Enskila Banken, 3.27%, 7/18/2006			50,000,000		50,000,000
SunTrust Bank, Atlanta, 3.17%, 4/28/2006			250,000,000		250,000,000
Tango Finance Corp., 144A, 3.15%, 2/10/2006			25,000,000		24,998,503

The accompanying notes are an integral part of the financial statements.

Scudder Cash Management Portfolio    15

		Principal
Scudder Cash Management Portfolio		Amount ($)		Value ($)
UniCredito Italiano SpA:
	3.258%, 2/28/2006		150,000,000		149,962,459
	3.4%, 9/26/2005		75,000,000		74,993,714
Westpac Banking Corp., 3.3%, 9/9/2005			40,000,000		39,997,699
Total Short Term Notes (Cost $2,209,900,860)					2,209,900,860
Commercial Paper** 13.7%
Atlantis One Funding Corp.:
	3.16%, 8/16/2005		76,000,000		75,693,129
	3.23%, 8/31/2005		30,339,000		30,172,953
	3.28%, 8/9/2005		130,105,000		129,642,693
	3.29%, 8/10/2005		180,000,000		179,342,000
Bank of America Corp., 3.25%, 8/9/2005			90,000,000		89,683,125
Citigroup Global Markets Holdings, Inc., 3.22%, 8/25/2005			100,000,000		99,508,056
Edison Asset Securitization LLC, 3.05%, 7/1/2005			33,218,000		33,218,000
General Electric Capital Corp., 3.01%, 7/1/2005			190,000,000		190,000,000
Giro Funding US Corp., 3.1%, 7/5/2005			25,000,000		24,991,389
HBOS Treasury Services PLC, 3.02%, 7/1/2005			50,000,000		50,000,000
Jupiter Securitization Corp., 3.1%, 7/7/2005			12,000,000		11,993,800
RWE AG, 2.92%, 8/8/2005			20,000,000		19,938,355
Sanofi-Aventis, 3.1%, 7/13/2005			90,000,000		89,907,000
Santander Central Hispano Finance (Delaware), Inc., 2.89%, 8/4/2005			90,000,000		89,754,350
The Goldman Sachs Group, Inc., 3.185%, 3/3/2006			30,000,000		29,349,729
Total Commercial Paper (Cost $1,143,194,579)					1,143,194,579
Master Notes 5.1%
Bear Stearns & Co., Inc., 3.588%*, 12/31/2005 (Cost $425,000,000)			425,000,000		425,000,000
Funding Agreements 2.7%
GE Capital Assurance Co.:
	3.396%*, 1/25/2006		75,000,000		75,000,000
	3.44%*, 9/1/2005		60,000,000		60,000,000
New York Life Insurance Co., 3.514%*, 9/20/2005			60,000,000		60,000,000
Travelers Insurance Co., 3.546%*, 3/31/2006			30,000,000		30,000,000
Total Funding Agreements (Cost $225,000,000)					225,000,000

The accompanying notes are an integral part of the financial statements.

16   Scudder Cash Management Portfolio

		Principal
Scudder Cash Management Portfolio		Amount ($)		Value ($)
Asset Backed 0.3%
Volkswagen Auto Lease Trust, “A1”, Series 2005-A, 2.99%, 3/20/2006			22,799,496		22,799,496
World Omni Auto Receivables Trust, “A1”, Series 2005-A, 2.78%, 2/12/2006			5,312,561		5,312,561
Total Asset Backed (Cost $28,112,057)					28,112,057
Promissory Notes 5.2%
The Goldman Sachs Group, Inc.:
	3.256%*, 10/7/2005		100,000,000		100,000,000
	3.32%*, 8/10/2005		129,000,000		129,000,000
	3.36%*, 2/16/2006		200,000,000		200,000,000
	3.538%*, 10/28/2005		9,000,000		9,000,000
Total Promissory Notes (Cost $438,000,000)					438,000,000
Municipal Bonds and Notes 0.2%
Texas, State Public Finance Authority Revenue, Unemployment Compensation, Series B, 2.125%, 12/15/2005 (Cost $14,925,333)			15,000,000		14,925,333
Time Deposits 16.3%
Danske Bank AS, 3.45%, 7/1/2005			200,000,000		200,000,000
ING Belgium NV, 3.375%, 7/1/2005			300,000,000		300,000,000
KBC Bank NV, 3.34%, 7/1/2005			365,541,934		365,541,934
Societe Generale, 3.4%, 7/1/2005			142,683,000		142,683,000
Wells Fargo Bank NA, 3.375%, 7/1/2005			350,000,000		350,000,000
Total Time Deposit (Cost $1,358,224,934)					1,358,224,934

The accompanying notes are an integral part of the financial statements.

Scudder Cash Management Portfolio    17

	Principal
Scudder Cash Management Portfolio	Amount ($)		Value ($)
Repurchase Agreements 5.9%
Countrywide Securities Corp., 3.45%, dated 6/30/2005, to be repurchased at $491,804,156 on 7/1/2005 (b) (Cost $491,757,029)		491,757,029		491,757,029

	% of
	Net Assets
Total Investment Portfolio (Cost $8,543,628,406) (a)		102.2		8,543,628,406
Other Assets and Liabilities, Net		(2.2	)	(179,210,695	)
Net Assets		100.0		8,364,417,711

*	Floating rate notes are securities whose yields vary with a designated market index or market rate, such as the coupon–equivalent of the US Treasury bill rate. These securities are shown at their current rate as of June 30, 2005.
**	Annualized yield at the time of purchase; not a coupon rate.
(a)	Cost for federal income tax purposes was $8,543,628,406.
(b)	Collateralized by:

Principal			Rate		Maturity		Collateral
Amount ($)		Security	(%)		Date		Value ($)
	152,588,132	Federal Home Loan Mortgage Corp.		2.5— 6.5		2/2/2007— 7/1/2035		132,998,662
	363,289,180	Federal National Mortgage Association		3.921— 7.0		7/1/2015— 5/1/2036		372,464,653
Total Collateral Value								$505,463,315

144A: Security exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be resold in transactions exempt from registration, normally to qualified institutional buyers.

The accompanying notes are an integral part of the financial statements.

18   Scudder Cash Management Portfolio

Financial Statements

Statement of Assets and Liabilities as of June 30, 2005 (Unaudited)

Assets
Investments in securities, at amortized cost	$	8,543,628,406
Cash		137,438
Interest receivable		21,878,852
Other assets		126,370
Total assets		8,565,771,066
Liabilities
Payable for investments purchased		200,000,000
Accrued advisory fee		977,842
Accrued administrator service fee		251,739
Other accrued expenses and payables		123,774
Total liabilities		201,353,355
Net assets, at value	$	8,364,417,711

The accompanying notes are an integral part of the financial statements.

Scudder Cash Management Portfolio    19

Statement of Operations for the six months ended June 30, 2005 (Unaudited)

Investment Income
Income:
Interest	$	142,946,528
Expenses:
Advisory fee		7,719,905
Administrator service fees		2,573,301
Auditing		19,912
Legal		14,760
Trustees’ fees and expenses		192,110
Other		109,984
Total expenses, before expense reductions		10,629,972
Expense reductions		(1,416,114	)
Total expenses, after expense reductions		9,213,858
Net investment income		133,732,670
Net realized gain (loss) from investment transactions		50,563
Net increase (decrease) in net assets resulting from operations	$	133,783,233

The accompanying notes are an integral part of the financial statements.

20   Scudder Cash Management Portfolio

Statement of Changes in Net Assets

	Six Months Ended			Years Ended
	June 30, 2005			December 31,
Increase (Decrease) in Net Assets	(Unaudited)			2004
Operations:
Net investment income	$	133,732,670		$	143,447,885
Net realized gain (loss) on investment transactions		50,563			91,685
Net increase (decrease) in net assets resulting from operations		133,783,233			143,539,570
Capital transaction in shares of beneficial interest:
Proceeds from capital invested		55,987,202,678			122,171,267,933
Value of capital withdrawn		(57,568,241,700	)		(125,052,740,207	)
Net increase (decrease) in net assets from capital transactions in shares of beneficial interest		(1,581,039,022	)		(2,881,404,917	)
Increase (decrease) in net assets		(1,447,255,789	)		(2,737,865,347	)
Net assets at beginning of period		9,811,673,500			12,549,538,847
Net assets at end of period	$	8,364,417,711		$	9,811,673,500

The accompanying notes are an integral part of the financial statements.

Scudder Cash Management Portfolio    21

Financial Highlights

Scudder Cash Management Portfolio

Years Ended December 31,	2005a			2004		2003		2002		2001		2000
Ratios to Average Net Assets and Supplemental Data
Net assets, end of period ($ millions)		8,364			9,812		12,550		11,237		10,864		8,806
Ratio of expenses before expense reductions (%)		.21	*		.21		.21		.20		.20		.20
Ratio of expenses after expense reductions (%)		.18	*		.18		.18		.18		.18		.18
Ratio of net investment income (%)		2.60	*		1.22		1.04		1.71		4.04		6.28
Total Return (%)b,c		1.30	**		1.26		1.06		1.72		—		—

a	For the six months ended June 30, 2005 (Unaudited).
b	Total return would have been lower had certain expenses not been reduced.
c	Total return for the Portfolio was derived from the performance of Cash Reserves Fund Institutional.
*	Annualized
**	Not annualized

22   Scudder Cash Management Portfolio

Notes to Financial Statements (Unaudited)

Note 1—Organization and Significant Accounting Policies

A. Organization

Scudder Cash Management Portfolio (the “Portfolio”) is registered under the Investment Company Act of 1940, as amended (the “1940 Act”), as a diversified, open-end management investment company organized as a New York business trust.

The Portfolio’s financial statements are prepared in accordance with accounting principles generally accepted in the United States of America which require the use of management estimates. Actual results could differ from those estimates. The policies described below are followed consistently by the Portfolio in the preparation of its financial statements.

B. Security Valuation

The Portfolio’s securities are valued utilizing the amortized cost method permitted in accordance with Rule 2a-7 under the 1940 Act and certain conditions therein. Under this method, which does not take into account unrealized capital gains or losses on securities, an instrument is initially valued at its cost and thereafter assumes a constant accretion/amortization to maturity of any discount or premium.

Investments in open-end investment companies are valued at their net asset value each business day.

C. Repurchase Agreements

The Portfolio may enter into repurchase agreements with certain banks and broker/dealers whereby the Portfolio, through its custodian or sub-custodian bank, receives delivery of the underlying securities, the amount of which at the time of purchase and each subsequent business day is required to be maintained at such a level that the value is equal to at least the principal amount of the repurchase price plus accrued interest. The custodian bank holds the collateral in a separate account until the agreement matures. If the value of the securities falls below the principal amount of the repurchase agreement plus accrued interest, the financial institution deposits additional collateral by the following business day. If the financial institution either fails to deposit the required additional collateral or fails to repurchase the securities as agreed, the Portfolio has the right to sell the securities and recover any resulting loss from the financial institution. If the financial institution enters into bankruptcy, the Portfolio’s claims on the collateral may be subject to legal proceedings.

Scudder Cash Management Portfolio    23

D. Federal Income Taxes

The Portfolio is considered a partnership under the Internal Revenue Code, as amended. Therefore, no federal income tax provisions are necessary.

E. Contingencies

In the normal course of business, the Portfolio may enter into contracts with service providers that contain general indemnification clauses. The Portfolio’s maximum exposure under these arrangements is unknown as this would involve future claims that may be made against the Portfolio that have not yet been made. However, based on experience, the Portfolio expects the risk of loss to be remote.

F. Other

Investment transactions are accounted for on trade date. Interest income is recorded on the accrual basis. Distributions of income and capital gains from investment companies are recorded on the ex-dividend date. Realized gains and losses from investment transactions are recorded on an identified cost basis. All discounts and premiums are accreted/ amortized for both tax and financial reporting purposes.

The Portfolio makes a daily allocation of its net investment income and realized gains and losses from securities transactions to its investors in proportion to their investment in the Portfolio.

Note 2—Fees and Transactions with Affiliates

Deutsche Asset Management, Inc., (“DeAM, Inc.” or the “Advisor”), an indirect, wholly owned subsidiary of Deutsche Bank AG, is the Advisor for the Portfolio. Under the Advisory Agreement, the Portfolio pays the Advisor an annual fee based on its average daily net assets which is calculated daily and paid monthly at the annual rate of 0.15%.

For the six months ended June 30, 2005, and through April 30, 2006, the Advisor and Administrator maintained the annualized expenses of the Portfolio at not more than 0.18% of the Portfolio’s average daily net assets. The amount of the waiver and whether the Advisor and Administrator waive a portion of their fees may vary at any time without notice to the shareholders.

24   Scudder Cash Management Portfolio

Accordingly, for the six months ended June 30, 2005, the Advisor waived a portion of its Advisory fee as follows:

	Total		Amount		Annualized
	Aggregated		Waived		Effective Rate
Scudder Cash Management Portfolio	$	7,719,905	$	1,366,086		0.12%

Investment Company Capital Corp. (“ICCC” or the “Administrator”), also an indirect, wholly owned subsidiary of Deutsche Bank AG, is the Portfolio’s Administrator. The Portfolio pays the Administrator an annual fee (“Administrator Service Fee”) based on its average daily net assets which is calculated daily and paid monthly at the annual rate of 0.05%.

Trustees’ Fees and Expenses. As compensation for his or her services, each Independent Trustee receives an aggregate annual fee, plus a fee for each meeting attended (plus reimbursement for reasonable out-of-pocket expenses incurred in connection with his or her attendance at board and committee meetings) from each Fund in the Fund Complex for which he or she serves. In addition, the Chairman of the Fund Complex’s Audit Committee receives an annual fee for his services. Payment of such fees and expenses is allocated among all such Funds described above in direct proportion to their relative net assets.

Note 3—Expense Reductions

For the six months ended June 30, 2005, the Advisor agreed to reimburse the Fund $50,028, which represents a portion of the fee savings expected to be realized by the Advisor related to the outsourcing by the Advisor of certain administrative services to an unaffiliated service provider.

Note 4—Line of Credit

The Portfolio and several other affiliated funds (the “Participants”) share in a $1.1 billion revolving credit facility administered by J.P. Morgan Chase Bank for temporary or emergency purposes, including the meeting of redemption requests that otherwise might require the untimely disposition of securities. The Participants are charged an annual commitment fee which is allocated, based upon net assets, among each of the Participants. Interest is calculated at the Federal Funds Rate plus 0.5 percent. Each Portfolio may borrow up to a maximum of 5 percent of its net assets under this agreement.

Scudder Cash Management Portfolio    25

Note 5—Regulatory Matters and Litigation

Since at least July 2003, federal, state and industry regulators have been conducting ongoing inquiries and investigations (“inquiries”) into the mutual fund industry, and have requested information from numerous mutual fund companies, including Scudder Investments. It is not possible to determine what the outcome of these inquiries will be or what the effect, if any, would be on the funds or their advisors. Publicity about mutual fund practices arising from these industry-wide inquiries serves as the general basis of a number of private lawsuits against the Scudder funds. These lawsuits, which previously have been reported in the press, involve purported class action and derivative lawsuits, making various allegations and naming as defendants various persons, including certain Scudder funds, the funds’ investment advisors and their affiliates, certain individuals, including in some cases fund Trustees/ Directors, officers, and other parties. Each Scudder fund’s investment advisor has agreed to indemnify the applicable Scudder funds in connection with these lawsuits, or other lawsuits or regulatory actions that may be filed making allegations similar to these lawsuits regarding market timing, revenue sharing, fund valuation or other subjects arising from or related to the pending inquiries. Based on currently available information, the funds’ investment advisors believe the likelihood that the pending lawsuits will have a material adverse financial impact on a Scudder fund is remote and such actions are not likely to materially affect their ability to perform under their investment management agreements with the Scudder funds.

26   Scudder Cash Management Portfolio

Account Management Resources

Automated Information Lines	Institutional Investor Services  (800) 730-1313 Personalized account information, information on other DeAM funds and services via touchtone telephone and the ability to exchange or redeem shares.
Web Site	moneyfunds.deam-us.db.com View your account transactions and balances, trade shares, monitor your asset allocation, and change your address, 24 hours a day. Obtain prospectuses and applications, blank forms, interactive worksheets, news about the funds, subscription to fund updates by e-mail, retirement planning information, and more.
For More Information	(800) 730-1313, option 1 To speak with a fund service representative.
Written Correspondence	Deutsche Asset Management PO Box 219210 Kansas City, MO 64121-9210
Proxy Voting	A description of the fund’s policies and procedures for voting proxies for portfolio securities and information about how the fund voted proxies related to its portfolio securities during the 12-month period ended June 30 is available on our Web site — scudder.com (type ‘proxy voting‘ in the search field) — or on the SEC’s Web site — www.sec.gov. To obtain a written copy of the fund’s policies and procedures without charge, upon request, call us toll free at (800) 621-1048.
Principal Underwriter	If you have questions, comments or complaints, contact: Scudder Distributors, Inc. 222 South Riverside Plaza Chicago, IL 60606-5808 (800) 621-1148
Nasdaq Symbol	BIRXX
CUSIP Number	811162 205
Fund Number	500

Cash Reserve Fund Institutional    27

Privacy Statement

This privacy statement is issued by Deutsche Investment Management Americas Inc., Deutsche Asset Management, Inc., Scudder Distributors, Inc., Scudder Investor Services, Inc., Scudder Trust Company and Deutsche Asset Management mutual funds.

We never sell customer lists or individual client information. We consider privacy fundamental to our client relationships and adhere to the policies and practices described below to protect current and former clients’ information. Internal policies are in place to protect confidentiality, while allowing client needs to be served. Only individuals who need to do so in carrying out their job responsibilities may access client information. We maintain physical, electronic and procedural safeguards that comply with federal and state standards to protect confidentiality. These safeguards extend to all forms of interaction with us, including the Internet.

In the normal course of business, clients give us nonpublic personal information on applications and other forms, on our websites, and through transactions with us or our affiliates. Examples of the nonpublic personal information collected are name, address, Social Security number and transaction and balance information. To be able to serve our clients, certain of this client information is shared with affiliated and nonaffiliated third party service providers such as transfer agents, custodians, and broker-dealers to assist us in processing transactions and servicing your account with us. In addition, we may disclose all of the information we collect to companies that perform marketing services on our behalf or to other financial institutions with which we have joint marketing agreements. The organizations described above that receive client information may only use it for the purpose designated by the Scudder Companies listed above.

We may also disclose nonpublic personal information about you to other parties as required or permitted by law. For example, we are required or we may provide information to government entities or regulatory bodies in response to requests for information or subpoenas, to private litigants in certain circumstances, to law enforcement authorities, or any time we believe it necessary to protect the firm.

Questions on this policy may be sent to:

Deutsche Asset Management

Attention: Correspondence

P.O. Box 219415

Kansas City, MO 64121-9415

September 2004

28   Cash Reserve Fund Institutional

Notes

Notes

Notes

222 South Riverside Plaza

Chicago, IL 60606-5808

1687SA

39191 (8/05)

ITEM 2.         CODE OF ETHICS.

                Not applicable.

ITEM 3.         AUDIT COMMITTEE FINANCIAL EXPERT.

                Not applicable.

ITEM 4.         PRINCIPAL ACCOUNTANT FEES AND SERVICES.

                Not applicable.

ITEM 5.         AUDIT COMMITTEE OF LISTED REGISTRANTS

                Not Applicable

ITEM 6.         SCHEDULE OF INVESTMENTS

                Not Applicable

ITEM 7.         DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR
                CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

                Not applicable.

ITEM 8.         PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

                Not applicable.

ITEM 9.         PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT
                INVESTMENT COMPANY AND AFFILIATED PURCHASERS

                Not Applicable.

ITEM 10.        SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

The Nominating and Governance Committee evaluates and nominates Board member
candidates. Fund shareholders may also submit nominees that will be considered
by the Committee when a Board vacancy occurs. Submissions should be mailed to
the attention of the Secretary of the Fund, One South Street, Baltimore, MD
21202.

ITEM 11.        CONTROLS AND PROCEDURES.

(a) The Chief Executive and Financial Officers concluded that the Registrant's
Disclosure Controls and Procedures are effective based on the evaluation of the
Disclosure Controls and Procedures as of a date within 90 days of the filing
date of this report.

(b) There have been no changes in the registrant's internal control over
financial reporting that occurred during the registrant's last half-year (the
registrant's second fiscal half-year in the case of the annual report) that has
materially affected, or is reasonably likely to materially affect, the
registrant's internal controls over financial reporting.

ITEM 12.        EXHIBITS.

(a)(1)   Certification  pursuant to Rule 30a-2(a) under the  Investment  Company
         Act of 1940 (17 CFR  270.30a-2(a))  is filed  and  attached  hereto  as
         Exhibit 99.CERT.

(b)      Certification  pursuant to Rule 30a-2(b) under the  Investment  Company
         Act of 1940 (17 CFR  270.30a-2(b))  is furnished and attached hereto as
         Exhibit 99.906CERT.




Form N-CSR Item F

                                   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.

Registrant:                         Scudder Cash Management Portfolio


By:                                 /s/Julian Sluyters
                                    ----------------------------
                                    Julian Sluyters
                                    Chief Executive Officer

Date:                               August 31, 2005


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.

Registrant:                         Scudder Cash Management Portfolio


By:                                 /s/Julian Sluyters
                                    ----------------------------
                                    Julian Sluyters
                                    Chief Executive Officer

Date:                               August 31, 2005



By:                                 /s/ Paul Schubert
                                    ---------------------------
                                    Paul Schubert
                                    Chief Financial Officer

Date:                               August 31, 2005

EX-99.CERT

                                             Deutsche Asset Management [LOGO]
                                             A Member of the Deutsche Bank Group



Chief Executive Officer
Form N-CSR Certification under Sarbanes Oxley Act






I, Julian Sluyters, certify that:

1.                I have reviewed this report, filed on behalf of Scudder Cash
                  Management Portfolio, on Form N-CSR;

2.                Based on my knowledge, this report does not contain any untrue
                  statement of a material fact or omit to state a material fact
                  necessary to make the statements made, in light of the
                  circumstances under which such statements were made, not
                  misleading with respect to the period covered by this report;

3.                Based on my knowledge, the financial statements, and other
                  financial information included in this report, fairly present
                  in all material respects the financial condition, results of
                  operations, changes in net assets, and cash flows (if the
                  financial statements are required to include a statement of
                  cash flows) of the registrant as of, and for, the periods
                  presented in this report;

4.                The registrant's other certifying officer(s) and I are
                  responsible for establishing and maintaining disclosure
                  controls and procedures (as defined in Rule 30a-3(c) under the
                  Investment Company Act of 1940) and internal control over
                  financial reporting (as defined in Rule 30a-3(d) under the
                  Investment Company Act of 1940) for the registrant and have:

(a)               Designed such disclosure controls and procedures, or caused
                  such disclosure controls and procedures to be designed under
                  our supervision, to ensure that material information relating
                  to the registrant, including its consolidated subsidiaries, is
                  made known to us by others within those entities, particularly
                  during the period in which this report is being prepared;



(b)               Designed such internal control over financial reporting, or
                  caused such internal control over financial reporting to be
                  designed under our supervision, to provide reasonable
                  assurance regarding the reliability of financial reporting and
                  the preparation of financial statements for external purposes
                  in accordance with generally accepted accounting principles;

(c)               Evaluated the effectiveness of the registrant's disclosure
                  controls and procedures and presented in this report our
                  conclusions about the effectiveness of the disclosure controls
                  and procedures, as of a date within 90 days prior to the
                  filing date of this report based on such evaluation; and

(d)               Disclosed in this report any change in the registrant's
                  internal control over financial reporting that occurred during
                  the registrant's most recent fiscal half-year (the
                  registrant's second fiscal half-year in the case of an annual
                  report) that has materially affected, or is reasonably likely
                  to materially affect, the registrant's internal control over
                  financial reporting; and

5.                The registrant's other certifying officer(s) and I have
                  disclosed to the registrant's auditors and the audit committee
                  of the registrant's board of directors (or persons performing
                  the equivalent functions):

(a)               All significant deficiencies and material weaknesses in the
                  design or operation of internal control over financial
                  reporting which are reasonably likely to adversely affect the
                  registrant's ability to record, process, summarize, and report
                  financial information; and

(b)               Any fraud, whether or not material, that involves management
                  or other employees who have a significant role in the
                  registrant's internal control over financial reporting.

August 31, 2005                                /s/Julian Sluyters
                                               Julian Sluyters
                                               Chief Executive Officer
                                               Scudder Cash Management Portfolio



                                             Deutsche Asset Management [LOGO]
                                             A Member of the Deutsche Bank Group



Chief Financial Officer
Form N-CSR Certification under Sarbanes Oxley Act






I, Paul Schubert, certify that:

1.                I have reviewed this report, filed on behalf of Scudder Cash
                  Management Portfolio, on Form N-CSR;

2.                Based on my knowledge, this report does not contain any untrue
                  statement of a material fact or omit to state a material fact
                  necessary to make the statements made, in light of the
                  circumstances under which such statements were made, not
                  misleading with respect to the period covered by this report;

3.                Based on my knowledge, the financial statements, and other
                  financial information included in this report, fairly present
                  in all material respects the financial condition, results of
                  operations, changes in net assets, and cash flows (if the
                  financial statements are required to include a statement of
                  cash flows) of the registrant as of, and for, the periods
                  presented in this report;

4.                The registrant's other certifying officer(s) and I are
                  responsible for establishing and maintaining disclosure
                  controls and procedures (as defined in Rule 30a-3(c) under the
                  Investment Company Act of 1940) and internal control over
                  financial reporting (as defined in Rule 30a-3(d) under the
                  Investment Company Act of 1940) for the registrant and have:

(a)               Designed such disclosure controls and procedures, or caused
                  such disclosure controls and procedures to be designed under
                  our supervision, to ensure that material information relating
                  to the registrant, including its consolidated subsidiaries, is
                  made known to us by others within those entities, particularly
                  during the period in which this report is being prepared;



(b)               Designed such internal control over financial reporting, or
                  caused such internal control over financial reporting to be
                  designed under our supervision, to provide reasonable
                  assurance regarding the reliability of financial reporting and
                  the preparation of financial statements for external purposes
                  in accordance with generally accepted accounting principles;

(c)               Evaluated the effectiveness of the registrant's disclosure
                  controls and procedures and presented in this report our
                  conclusions about the effectiveness of the disclosure controls
                  and procedures, as of a date within 90 days prior to the
                  filing date of this report based on such evaluation; and

(d)               Disclosed in this report any change in the registrant's
                  internal control over financial reporting that occurred during
                  the registrant's most recent fiscal half-year (the
                  registrant's second fiscal half-year in the case of an annual
                  report) that has materially affected, or is reasonably likely
                  to materially affect, the registrant's internal control over
                  financial reporting; and

5.                The registrant's other certifying officer(s) and I have
                  disclosed to the registrant's auditors and the audit committee
                  of the registrant's board of directors (or persons performing
                  the equivalent functions):

(a)               All significant deficiencies and material weaknesses in the
                  design or operation of internal control over financial
                  reporting which are reasonably likely to adversely affect the
                  registrant's ability to record, process, summarize, and report
                  financial information; and

(b)               Any fraud, whether or not material, that involves management
                  or other employees who have a significant role in the
                  registrant's internal control over financial reporting.

August 31, 2005                                /s/Paul Schubert
                                               Paul Schubert
                                               Chief Financial Officer
                                               Scudder Cash Management Portfolio

EX-99.906CERT

                                             Deutsche Asset Management [LOGO]
                                             A Member of the Deutsche Bank Group



Chief Executive Officer
Section 906 Certification under Sarbanes Oxley Act





I, Julian Sluyters, certify that:

1.       I have reviewed this report, filed on behalf Scudder Cash Management
         Portfolio, on Form N-CSR;

2.       Based on my knowledge and pursuant to 18 U.S.C. ss. 1350, the periodic
         report on Form N-CSR (the "Report") fully complies with the
         requirements of ss. 13 (a) or ss.15 (d), as applicable, of the
         Securities Exchange Act of 1934 and that the information contained in
         the Report fairly presents, in all material respects, the financial
         condition and results of operations of the Company.




August 31, 2005                                /s/Julian Sluyters
                                               Julian Sluyters
                                               Chief Executive Officer
                                               Scudder Cash Management Portfolio



                                             Deutsche Asset Management [LOGO]
                                             A Member of the Deutsche Bank Group



Chief Financial Officer
Section 906 Certification under Sarbanes Oxley Act





I, Paul Schubert, certify that:

1.       I have reviewed this report, filed on behalf of Scudder Cash Management
         Portfolio, on Form N-CSR;

2.       Based on my knowledge and pursuant to 18 U.S.C. ss. 1350, the periodic
         report on Form N-CSR (the "Report") fully complies with the
         requirements of ss. 13 (a) or ss. 15 (d), as applicable, of the
         Securities Exchange Act of 1934 and that the information contained in
         the Report fairly presents, in all material respects, the financial
         condition and results of operations of the Company.



August 31, 2005                                /s/Paul Schubert
                                               Paul Schubert
                                               Chief Financial Officer
                                               Scudder Cash Management Portfolio