Income Taxes

6 Months Ended

Jun. 30, 2022

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The effective tax rates were 12.7 percent and 9.2 percent for the three and six months ended June 30, 2022, respectively, reflecting the favorable tax impact of the implementation of a provision in the Tax Cuts and Jobs Act (2017 Tax Act) that requires capitalization and amortization of research and development expenses for tax purposes starting in 2022 and of net investment losses on equity securities, partially offset by the tax impact related to non-deductible development milestones. We expect our effective tax rate to be approximately 13 percent to 14 percent for 2022 if the capitalization and amortization of research and development expenses provision of the 2017 Tax Act is deferred or repealed by the U.S. Congress effective for 2022.

The effective tax rates were 12.8 percent and 10.6 percent for the three and six months ended June 30, 2021, respectively, reflecting the favorable tax impact of inventory impairment charges related to our COVID-19 antibodies, partially offset by the tax impact of net investment gains on equity securities. The effective tax rate for the six months ended June 30, 2021 was also impacted favorably by a net discrete tax benefit.

The U.S. examination of tax years 2016-2018 began in the fourth quarter of 2019 and remains ongoing. The resolution of this audit period will likely extend beyond the next 12 months.