SEP IRA Contribution Limits 2026: $72,000

How much can you contribute to a SEP IRA in 2026?

For tax year 2026, the federal SEP IRA contribution limit is the lesser of 25% of eligible compensation or $72,000. Compensation counted under the plan stops at $360,000.

That is the employee-side ceiling. A SEP is employer-funded. It has no employee salary deferral and no age-50 catch-up.

If you are self-employed, the useful number is lower than 25% of Schedule C profit. Your contribution reduces the earned income used to calculate that same contribution. IRS Publication 560 handles the circle with a rate table and its Deduction Worksheet for Self-Employed. For a 25% plan rate, the corresponding reduced rate is 20%, applied after the deductible half of regular self-employment tax.

Those 2026 figures live in Numerandi's rates registry, which cites IRS Notice 2025-67 and Publication 560 (verified September 5, 2026). The linked calculator compares the dollar amounts.

Should you use this article or the calculator?

Use this page for the 2026 limit rules and the reduced self-employed rate. Use the linked calculator for the dollar comparison from the same Schedule C profit. The calculator does not choose a provider or turn a federal ceiling into a funding recommendation.

How does the SEP IRA limit work for an employee?

A SEP contribution for an eligible employee is an employer contribution under the same 2026 ceiling. The dollar maximum is not automatic. Your written plan controls the formula, and SEP allocation rules generally require the same percentage for eligible employees. If you have workers, their contributions can cost more than the owner's maximum. Confirm eligibility, compensation, and allocation before funding.

Why is the self-employed SEP rate effectively lower?

You cannot multiply Schedule C profit by 25%. Publication 560 uses the 20% reduced rate after the deductible half of regular self-employment tax. The result still faces the $72,000 ceiling and the $360,000 compensation limit.

Start with net earnings, not revenue or draws. A partner, S-corporation shareholder-employee, farmer, or minister can need a different starting amount. Inspect the deductible-half layer on the 2026 self-employment tax calculator.

What do the live calculator defaults show?

These are the linked calculator's first-paint defaults, not a recommended profit or a funding target: $100,000 of Schedule C net profit, age 45 at year-end, and $0 of other elective deferrals or W-2 Social Security wages.

The shipped formatter prints the same function the tool runs on first paint:

• Regular self-employment tax produces a $7,064.78 deductible half.
• Plan earnings left for the worksheet are $92,935.23.
• Your SEP maximum is 20% × $92,935.23 = $18,587.05. A SEP has no employee deferral or catch-up.
• Your Solo 401(k) starts with a $24,500.00 employee deferral.
• The worksheet then allows an $18,587.05 employer contribution.
• You are under age 50, so catch-up is $0.00.
• Your total Solo 401(k) room is $43,087.05, which is $24,500.00 more than the SEP maximum for these facts.

That gap is the unused employee-deferral limit, not extra employer room. The IRS SEP FAQs describe a SEP as employer-funded.

The same $100,000 profit at age 50 keeps the $18,587.05 employer piece on both sides and adds the $8,000.00 age-50 catch-up on the Solo 401(k) only. Your Solo total becomes $51,087.05, which is $32,500.00 more than the SEP. Those catch-up dollars come from IR-2025-111 and still need earned income.

Change profit, age, or other-plan deferrals in the linked calculator when your facts differ. Do not treat either maximum as a requirement to fund the full amount.

When is a SEP enough versus a Solo 401(k)?

A SEP is often enough when you only need employer contributions, want the simpler document, or may still establish and fund the plan by the business-return due date, including extensions. See the IRS SEP FAQs. A SEP does not produce a higher federal maximum on the Schedule C facts the calculator models.

A Solo 401(k) usually wins on federal room. It can stack an employee deferral and any permitted catch-up on the same employer worksheet a SEP uses. For 2026, the regular employee deferral limit is $24,500 across applicable plans. Catch-up is $8,000 at age 50, or $11,250 at ages 60 through 63. Catch-up sits outside the $72,000 annual-additions ceiling but still needs earned income. A SEP has no employer catch-up.

The two federal maximums can match when that ceiling binds both sides, or when you already used the shared deferral limit at another job and you are under age 50.

The IRS one-participant 401(k) guidance limits this arrangement to a business owner with no common-law employees, or the owner and spouse. Hiring an eligible employee changes the plan question. Employee deferrals generally need the plan to exist by year-end; employer contributions can often wait until the return due date.

Contribution room is not a tax deduction or a cash recommendation. Size a reserve on how much to set aside for 1099 taxes instead of treating the statutory maximum as a funding target. Use the linked calculator for the dollar gap. This page owns the limit rules.

Which mistakes and edge cases should you avoid?

• Using gross revenue as compensation. A sole proprietor starts from net earnings and the Publication 560 adjustments, not invoices, deposits, or draws.
• Applying 25% directly to Schedule C profit. The self-employed worksheet uses the 20% reduced rate for a plan with that stated employee rate.
• Forgetting deferrals at another job. Your $24,500 regular elective-deferral limit is person-wide.
• Adding catch-up to a SEP maximum. The SEP employer limit has no age-based catch-up.
• Ignoring employees. A SEP can require contributions for eligible employees, while an eligible common-law employee can end one-participant 401(k) treatment.
• Using Schedule C math for an S corporation. A corporation generally bases employer contributions on W-2 compensation.
• Funding before checking deadlines and plan terms. A federal ceiling does not cure a late election or a plan that does not authorize the contribution.

The 2026 figures were last verified September 5, 2026 against Notice 2025-67, Publication 560, the IRS SEP FAQs, and the IRS one-participant 401(k) guidance. Use the final instructions and your plan records before contributing.