The new minimum tax based on financial statement income applies to tax years beginning after December 31, 2022.
The Inflation Reduction Act added the new CAMT to the Code primarily by amending sections 53, 55, and 59 as well as introducing section 56A. The CAMT is a minimum tax based on financial statement income that applies to “applicable corporations.” Whether a taxpayer is an applicable corporation, and thus subject to the CAMT (the Scope Determination) and the potential CAMT tax liability of an applicable corporation (the Liability Determination) are based on adjusted financial statement income (AFSI).1
A corporation determining whether it is an applicable corporation may apply a safe harbor (Safe Harbor Scope Determination) during 2022.2 If the Safe Harbor Scope Determination is not satisfied in 2022 and for all future years, a corporation determining whether it is an applicable corporation must apply the statutory rules (Statutory Scope Determination).3
Under the Statutory Scope Determination’s average annual AFSI test, a corporation generally meets the Scope Determination if the average AFSI of the corporation (together with certain related entities) in the three-tax-year period ending with any tested tax year4 exceeds $1 billion. Applying the Safe Harbor Scope Determination’s average annual AFSI test, a corporation generally meets the Scope Determination if the average AFSI of the corporation (together with certain related entities) in the three-tax-year period ending with any tested tax year exceeds $500 million.5
1AFSI for Scope Determination purposes and Liability Determination purposes may (and often will) differ.
2Slightly different rules apply to fiscal year corporations.
3Future guidance could provide for a safe harbor applicable to future years.
4A tested tax year is any tax year ending after December 31, 2021.
5The Scope Determination includes two aggregation rules. First, the AFSI of a corporation generally includes the AFSI of any person that is treated as a single employer with that corporation under section 52(a) or 52(b). Second, a special aggregation rule applies if the corporation is a member of a “foreign-parented multinational group.”