The corporate alternative minimum tax (CAMT) currently imposes a 15% minimum tax on the adjusted financial statement income (AFSI) of applicable large corporations. CAMT generally applies to large corporations with average annual financial statement income exceeding $1 billion. The IRS has issued interim guidance (Notice 2025-27) aimed at simplifying CAMT calculations, following feedback that pending regulations are too complex. The tax agency said it issued the new notice to “reduce compliance burdens and costs for certain corporations.” The guidance also provides relief from certain additions to tax for an applicable corporation’s underpayment of estimated tax.
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