What is the accumulated earnings tax?
A risk for C corporations that retain earnings without documented needs
The accumulated earnings tax under IRC §531 is a 20% tax on a C corporation's accumulated taxable income when earnings are kept beyond the reasonable needs of the business to avoid shareholder income tax. Under §535(c), the accumulated earnings credit is at least $250,000 ($150,000 for certain service corporations), reduced by accumulated earnings and profits at the end of the prior year. Specific, definite, and feasible plans support retention.
Reviewed by Ebot Mbi, CPA, EA · Last reviewed · Law and figures current as of September 17, 2026
Key takeaways
- The tax is 20% of accumulated taxable income, in addition to the regular corporate tax.
- It applies to C corporations, not to S corporations, partnerships, personal holding companies, or PFICs.
- The minimum credit is a lifetime cushion of $250,000, or $150,000 for health, law, engineering, architecture, accounting, actuarial science, performing arts, or consulting corporations.
- Retention for reasonable business needs is supported by specific, definite, and feasible plans.
- The IRS raises the tax on examination; a timely statement of grounds can shift the burden of proof.
What it is
A C corporation pays tax on its income, and its shareholders pay tax again when earnings are distributed as dividends. If a corporation simply never pays dividends, the second tax is postponed. The accumulated earnings tax discourages accumulating earnings for that purpose.
Profitable C corporations often have good reasons to retain earnings: expansion, equipment, debt repayment, working capital, and reserves for real business risks. The key is documenting those needs when the decisions are made.
What the law says
IRC §531 imposes a tax equal to 20% of the accumulated taxable income of each corporation described in §532. Section 532(a) applies the tax to every corporation formed or availed of for the purpose of avoiding shareholder income tax by permitting earnings to accumulate instead of being distributed, and §532(b) excludes personal holding companies, tax-exempt corporations, and passive foreign investment companies.
Section 535 defines accumulated taxable income as taxable income with specified adjustments, minus the dividends-paid deduction and the accumulated earnings credit. Under §535(c)(1), the credit generally equals the part of the year's earnings retained for the reasonable needs of the business. Under §535(c)(2), the credit is never less than $250,000 minus accumulated earnings and profits at the end of the prior year, or $150,000 minus that amount for corporations whose principal function is services in health, law, engineering, architecture, accounting, actuarial science, performing arts, or consulting.
Section 533 treats accumulation beyond reasonable needs as evidence of the prohibited purpose. Section 534 addresses the burden of proof in the Tax Court, and Treas. Reg. §1.537-1 explains reasonable needs. IRM 8.7.1.3 describes the notice procedures the IRS follows before issuing a notice of deficiency for this tax.
Requirements and tests
The analysis turns on these points:
- Entity: a C corporation that is not a personal holding company, tax-exempt organization, or PFIC.
- Accumulated earnings and profits at the end of the prior year, which reduce the minimum credit.
- Whether the corporation is a service corporation subject to the $150,000 minimum.
- Documented reasonable business needs: specific, definite, and feasible plans with timelines, such as expansion, equipment, debt retirement, working capital, or product liability reserves.
- Dividends paid, which reduce accumulated taxable income.
- Loans to shareholders, investments unrelated to the business, and other facts that suggest a tax-avoidance purpose.
How it works
Accumulated taxable income starts with taxable income and is adjusted, for example by subtracting federal income tax and certain capital gains and adding back some deductions. The corporation then subtracts dividends paid and the accumulated earnings credit. The tax is 20% of what remains.
The credit is the greater of the minimum credit and the amount of the year's earnings retained for reasonable needs. The minimum is not added on top of reasonable needs; it is a floor.
For working capital, courts often use an operating cycle analysis to estimate how much cash the business needs to run one cycle of operations. Board minutes, budgets, vendor quotes, and loan agreements that exist when the earnings are retained are the strongest support.
If the IRS proposes the tax, it must first notify the corporation. The corporation can respond with a statement of the grounds on which it relies, and under §534 the burden of proof on those grounds can shift to the IRS in Tax Court.
Paying dividends reduces accumulated taxable income dollar for dollar, so a planned dividend policy is another way to manage the exposure, especially when combined with the qualified dividend rates. Consent dividends under §565 can also reduce accumulated taxable income without a cash payment, although shareholders are taxed as if they received the amount.
Assumptions: Tax year 2026; a C corporation that is not a service corporation; accumulated earnings and profits at the end of 2025 were $0, so the minimum credit is $250,000.; Accumulated taxable income before the accumulated earnings credit is $1,000,000 after all §535(b) adjustments; no dividends were paid.; The IRS asserts the tax on examination; the amounts show three levels of documented reasonable needs retained from the year's earnings.
| No documented needs: credit (minimum) | $250,000 |
|---|---|
| No documented needs: tax (($1,000,000 − $250,000) × 20%) | $150,000 |
| $800,000 of documented needs: credit (greater of $800,000 or $250,000) | $800,000 |
| $800,000 of documented needs: tax (($1,000,000 − $800,000) × 20%) | $40,000 |
| $1,000,000 of documented needs: tax | $0 |
| Service corporation with no documented needs: tax (($1,000,000 − $150,000) × 20%) | $170,000 |
The minimum credit is a floor, not an addition, so documented needs must cover the full accumulation to eliminate the tax.
Illustration only; not a projection of your results.
Risks and IRS scrutiny
The tax is not self-assessed on a return; the IRS asserts it on examination. Red flags include large cash or investment balances, loans to shareholders, no dividend history, and vague plans. Plans documented after an examination begins carry less weight.
Who it is not for
This tax does not apply to S corporations or partnerships. It is a small concern for a C corporation with modest retained earnings below the minimum credit. And the planning here is not for a corporation that intends to retain earnings mainly to postpone shareholder tax; that is exactly what the tax targets.
How ebotCPA helps
We compare your retained earnings with the minimum credit, help you document reasonable business needs contemporaneously, model dividend alternatives, and prepare responses if the IRS raises the tax.
Book a $497 Case Analysis to have Ebot Mbi, CPA, EA review your facts before you act.
Frequently asked questions
What is the accumulated earnings tax rate?
20% of accumulated taxable income under IRC §531, in addition to the regular 21% corporate income tax.
Is the $250,000 credit available every year?
No. It is $250,000 minus the corporation's accumulated earnings and profits at the end of the prior year, so it works as a lifetime cushion. Listed service corporations get $150,000.
Does the tax apply to S corporations?
No. It applies to C corporations described in §532, and it excludes personal holding companies, exempt organizations, and PFICs.
How do I show reasonable business needs?
Keep contemporaneous, specific, definite, and feasible plans, such as board-approved budgets, quotes, and timelines, as described in Treas. Reg. §1.537-1.
Have facts like these?
Book a $497 Case Analysis to have Ebot Mbi, CPA, EA review your facts before you act.