Title 26 › Subtitle Subtitle A— Income Taxes › Chapter 1— NORMAL TAXES AND SURTAXES › Subchapter A— Determination of Tax Liability › Part VI— ALTERNATIVE MINIMUM TAX › § 56A
Big corporations subject to the corporate alternative minimum tax figure it on "adjusted financial statement income": the net income or loss shown on the company's own financial statement, with a list of required adjustments. Federal and foreign income taxes are stripped out. If the statement covers a whole group of companies or a different period, the numbers are adjusted to match the corporation and its tax year. A corporate partner counts only its share of a partnership's book income, and a U.S. shareholder adds its share of the book income of its controlled foreign corporations. Income and costs from certain pension and benefit plans are removed from book income, with the tax-law amounts used instead. Companies use regular tax depreciation in place of book depreciation, and for tax years beginning after December 31, 2025, the same swap applies to deductions for intangible drilling and development costs. Wireless carriers get a similar adjustment for spectrum bought after December 31, 2007 and before this rule was enacted. Book losses from years ending after December 31, 2019 carry forward and can offset up to 80 percent of adjusted financial statement income. These rules apply to tax years beginning after December 31, 2022.
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Internal Revenue Code — Source: USLM XML via OLRC
Legislative History
Reference
Citation
26 U.S.C. § 56A
Title 26 — Internal Revenue Code
Last Updated
Apr 6, 2026
Release point: 119-73