C Corporation Taxable Income, E&P, and Shareholder Transactions

C corporation compliance topics covering taxable income, loss usage, shareholder transactions, and earnings and profits.

This chapter covers the main C corporation compliance rules tested in TCP. The work centers on taxable-income computation, the use of losses and special deductions, the tax effect of shareholder transactions, and the role of earnings and profits in classifying distributions.

C corporation questions should separate entity-level tax from shareholder-level treatment. The corporation computes taxable income and E&P, while shareholders may face dividend, return-of-capital, redemption, or gain consequences depending on the transaction.

In This Chapter

C Corporation Compliance Lens

Compliance area First question Common TCP trap
Taxable income and special deductions Which book-tax adjustments, DRD limits, or charitable limits affect taxable income? Applying individual or pass-through rules to a C corporation.
NOLs, capital losses, and Section 382 Which loss type exists and whether ownership change limits usage. Letting corporate losses offset income without checking category and limitation rules.
Shareholder transactions Is the transaction a contribution, redemption, distribution, or sale-like event? Treating all shareholder cash flows as dividends.
E&P and distribution ordering Does E&P support dividend treatment before return of capital or gain? Computing taxable income correctly but misclassifying the shareholder distribution.

C Corporation Compliance Sequence

Step What to do Why it matters on TCP
1. Compute corporate taxable income Start with income, deductions, book-tax adjustments, DRD, charitable limits, and special corporate items. The entity-level tax result is separate from shareholder treatment.
2. Apply loss rules Classify NOLs, capital losses, and ownership-change limitations before offsetting income. Corporate losses do not all behave like ordinary individual losses.
3. Analyze shareholder transactions Separate contributions, loans, redemptions, sales, dividends, and property distributions. The same cash movement can produce different entity and shareholder consequences.
4. Compute E&P when distributions appear Determine current and accumulated E&P before classifying dividends, return of capital, or gain. Distribution character depends on E&P, not only on corporate taxable income.
5. Tie the result to reporting Identify return treatment, shareholder reporting, basis effects, and documentation needed to support the transaction. TCP often asks for the compliance consequence after the tax character is known.

C Corporation Compliance Checkpoints

Checkpoint Exam use What to avoid
Entity-level computation Start with corporate taxable income, book-tax adjustments, special deductions, and credits before shareholder effects. Blending corporate and shareholder tax results into one computation.
Loss category Separate NOLs, capital losses, passive limits where relevant, and ownership-change constraints. Letting every corporate loss offset every income category immediately.
Shareholder transaction type Classify the movement as contribution, loan, dividend, redemption, property distribution, sale, or compensation. Treating every owner cash flow as a dividend.
E&P support Compute current and accumulated E&P before determining dividend, return of capital, or gain character. Using taxable income as a substitute for E&P.
Reporting consequence Identify the corporate return item, shareholder reporting, basis change, and documentation trail. Stopping after the tax character without explaining how it is reported.

How to Use This Chapter

  • Work in order because loss usage and distribution character make more sense after taxable-income computation is clear.
  • Revisit the E&P lesson whenever a redemption or distribution question changes character between dividend, return of capital, and gain.

In this section

Revised on Monday, June 15, 2026