CPA Exam Lab
Section 2: 30–40%T5

C Corporation Tax Compliance

Exam Insight

C corporations face entity-level tax at a flat 21% rate, and the TCP exam tests your ability to bridge book income to taxable income and apply the special deductions and penalty taxes. Mastering Schedule M-1/M-3 adjustments, the dividends-received deduction, and the NOL and capital loss limitations is the core of corporate compliance.

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What AICPA Wants You to Know

  • 1Compute C corporation taxable income and the 21% flat tax from book income using Schedule M-1 adjustments.
  • 2Apply the dividends-received deduction at the 50%, 65%, and 100% tiers, including the taxable-income limitation.
  • 3Apply the 10% charitable contribution limit and the corporate capital loss carryback/carryforward rules.
  • 4Apply the 80%-of-taxable-income NOL limitation with no carryback and indefinite carryforward.
  • 5Identify when the accumulated earnings tax and personal holding company tax apply and how they are computed.
  • 6Determine corporate estimated tax payment requirements and safe harbors.