20.3 Accumulated Earnings Tax
Key Takeaways
- The accumulated earnings tax (AET, §531) is a 20% penalty tax on improper accumulations.
- Applies when corporations retain earnings beyond reasonable business needs to avoid dividend tax.
- Accumulated earnings credit: $250,000 for regular corps, $150,000 for personal service corporations.
- These credit amounts have never been inflation-adjusted since 1981 and are not changed by OBBBA.
- Reasonable needs include expansion, working capital, debt retirement, and bona fide acquisitions.
- Burden of proof shifts to the corporation once accumulations exceed the credit amount.
Accumulated Earnings Tax (AET — §531)
Why This Matters for the Exam
The AET is a trap for corporations that retain too much earnings. The exam tests the 20% rate, the $250K/$150K credit, and what constitutes reasonable business needs. OBBBA did not change AET — the figures below are the same for 2025 as in prior years.
Expect at least 2-3 questions on AET.
What Is the AET?
The accumulated earnings tax (Internal Revenue Code §531) is a 20% penalty tax on corporations that accumulate earnings beyond reasonable business needs to avoid shareholder dividend taxation.
| AET Element | Detail |
|---|---|
| Rate | 20% |
| Applies to | Accumulated taxable income (§535) |
| Purpose | Prevent tax avoidance |
| In addition to | Regular 21% corporate tax |
The Tax Avoidance Scheme AET Targets
Without AET, shareholders could:
| Step | Effect |
|---|---|
| 1. Retain earnings | Pay only 21% corporate tax |
| 2. Never pay dividends | Avoid 0-20% qualified dividend tax |
| 3. Sell stock later | Pay only 0-20% capital gains tax |
Result: Avoid the dividend tax entirely. AET prevents this by imposing a 20% surcharge on improper accumulations.
Accumulated Earnings Credit (Tax Year 2025)
Corporations can retain a minimum amount without AET risk:
| Corporation Type | Credit Amount |
|---|---|
| Regular C corporation | $250,000 |
| Personal service corporation (PSC) | $150,000 |
Note: These amounts have never been inflation-adjusted since 1981 and are unchanged by OBBBA.
Reasonable Business Needs
Accumulating beyond the credit is permitted if for reasonable business needs:
| Acceptable Needs | Not Acceptable |
|---|---|
| Working capital requirements | Loans to shareholders |
| Business expansion | Personal investments |
| Acquiring another business | Vague expansion plans |
| Debt retirement | Avoiding dividend tax |
| Anticipated lawsuits | Stock investments unrelated to business |
| §303 redemptions to pay estate taxes |
Calculating Accumulated Taxable Income (§535)
| Start With | Adjustment |
|---|---|
| Taxable income | Starting point |
| - Federal income taxes | Deduct |
| - Charitable contributions (over 10% TI cap) | Deduct excess allowed |
| - Accumulated earnings credit | Deduct ($250k or $150k) |
| - Dividends paid deduction | Deduct |
| = Accumulated taxable income | AET base |
Burden of Proof
| Accumulated E&P | Burden of Proof |
|---|---|
| ≤ Credit amount | IRS must prove tax avoidance |
| > Credit amount | Corporation must prove reasonable needs |
AET Calculation Example (TY 2025)
| Item | Amount |
|---|---|
| Taxable income | $600,000 |
| Federal taxes paid (21%) | ($126,000) |
| Net after taxes | $474,000 |
| Less: Dividends paid | ($50,000) |
| Less: AE Credit | ($250,000) |
| Accumulated taxable income | $174,000 |
| AET (20%) | $34,800 |
Personal Holding Company (PHC) Tax — §541 (Compare)
AET should not be confused with the related PHC tax (§541): also 20%, but mechanical (no business-purpose defense). PHC applies when both apply: (1) 60%+ of adjusted ordinary gross income is PHC income (passive — dividends, interest, royalties, rents, etc.), AND (2) 50%+ of stock is owned by five or fewer individuals at any time during the last half of the tax year. PHC tax is on undistributed PHC income at 20%.
Real-World Scenario
Scenario: A corporation with $500,000 accumulated E&P pays no dividends in 2025. The IRS asserts the accumulation is to avoid dividend tax.
- Burden: Because $500,000 > $250,000 credit, corporation must prove reasonable business needs.
- Documentation needed: Board minutes, expansion plans, working capital analysis.
- If no proof: 20% AET applies on excess over $250,000.
On the Exam
Expect 2-3 questions on AET, typically:
- Rate Questions: "What is the AET rate?" (20%)
- Credit Questions: "What is the accumulated earnings credit?" ($250K regular / $150K PSC)
- Reasonable Needs Questions: "Which is a reasonable business need?"
- PHC vs AET Questions: Distinguish the two 20% penalties.
The key is to remember: 20% AET. Credit = $250,000 (regular) / $150,000 (PSC). Document reasonable business needs. PHC = mechanical 60%/50% test; AET = motive test.
What is the accumulated earnings tax rate?
What is the accumulated earnings credit for a regular C corporation?
Which is a reasonable business need for accumulating earnings?
Which 20% penalty tax applies when 60%+ of a corporation's adjusted ordinary gross income is passive (dividends, interest, royalties, etc.) AND 50%+ of stock is owned by five or fewer individuals?