SEP IRA Contribution Limits & Deadlines for 2026

SEP IRA contribution limits and deadline overview

For 2026, the SEP IRA contribution limit is the lesser of 25% of an eligible employee’s compensation or $72,000. The compensation that can be counted is capped at $360,000. But if you are self-employed, “25%” is not 25% of your Schedule C profit. The IRS requires a special calculation that usually turns a 25% SEP plan rate into an effective 20% contribution rate after the self-employment adjustments.

The deadline is unusually flexible, too. A SEP can generally be established and funded as late as the due date of the business’s federal income tax return, including extensions. That makes a SEP one of the few retirement plans you may still be able to create after the tax year has ended.

Quick Answer

2026 SEP IRA limit: the lesser of 25% of eligible employee compensation or $72,000, using no more than $360,000 of compensation. For a self-employed owner, do not multiply Schedule C profit by 25%; use the IRS self-employed contribution calculation. SEP contributions are employer contributions, and both establishing and funding the SEP can generally wait until the employer’s federal return due date, including a valid extension. The IRS has not yet published the 2027 SEP dollar limits as of September 2, 2026.

Key Takeaways Ahead

2026 SEP IRA Contribution Limits: $72,000, 25%, and the $360,000 Compensation Cap

The IRS 2026 SEP contribution limits are straightforward for a common-law employee:

SEP IRA contribution limits for 2025 and 2026
SEP IRA limit	2025	2026
Maximum contribution	$70,000	$72,000
Employer contribution rate	Up to 25% of compensation	Up to 25% of compensation
Maximum compensation counted	$350,000	$360,000
Minimum compensation for SEP eligibility	$750	$800

For an employee earning $100,000 of eligible W-2 compensation, a 25% SEP contribution is $25,000. For an employee earning $400,000, the compensation cap matters: only $360,000 can be used for the 2026 calculation, and the separate $72,000 contribution cap still applies.

Self-employed? The 25% rule does not mean 25% of Schedule C profit

This is the number I would double-check before funding anything. The IRS self-employed contribution guidance specifically warns that a self-employed owner cannot simply multiply Schedule C net profit by the plan contribution percentage.

Your SEP “compensation” is based on net earnings from self-employment after adjustments that include the deductible part of self-employment tax and the deduction for your own SEP contribution. Because the contribution itself affects the compensation base, the IRS uses a reduced contribution rate.

The 25% / 20% shortcut

When the SEP plan contribution rate for employees is 25%, the IRS reduced rate for the self-employed owner is 20%. But that 20% is applied after the self-employment-tax adjustment, not blindly to Schedule C profit.

Example: $100,000 of Schedule C profit

Assume a sole proprietor has $100,000 of Schedule C net profit, no other wages that change the Social Security portion of the self-employment-tax calculation, and uses a 25% SEP plan rate.

Schedule C net profit: $100,000
Approximate deductible half of 2026 self-employment tax: $7,065
Adjusted net earnings used before the SEP rate: about $92,935
Reduced SEP rate: 20%
Approximate maximum SEP contribution: $18,587

That is why “25% of compensation” does not mean a $25,000 SEP contribution on $100,000 of Schedule C profit. The exact number can change if you also have W-2 wages, partnership income, or other facts that change Schedule SE.

If your income is close to the maximum or your tax situation is more complicated than a clean Schedule C, use the worksheets in IRS Publication 560 or have the contribution calculated from the final tax-return numbers before you deposit it.

2026 SEP IRA Contribution Deadlines: Establishing vs. Funding the Plan

SEP IRAs have two timing questions that are easy to blur together: When must the SEP plan be established? and when must the contribution actually be deposited?

For a SEP, the answer is unusually generous on both. According to the IRS SEP FAQs, you can generally establish the SEP as late as the due date of the business’s federal income tax return for that year, including extensions. Contributions for that year are also generally due by that return deadline, including extensions.

As of September 2, 2026

If you are a calendar-year sole proprietor who timely extended your 2025 Form 1040, the normal extended deadline is October 15, 2026. That can leave a current window to establish and fund a 2025 SEP contribution. The IRS also says that if you obtained the extension, you have until the end of the extension period to deposit the SEP contribution regardless of when you actually file the return.

For a calendar-year sole proprietor making a 2026 SEP contribution, the normal individual return deadline is April 15, 2027. With a timely six-month extension, the normal extended deadline is October 15, 2027. Different business entities can have different return deadlines, so corporations and partnerships should key the SEP deadline to the employer’s actual federal return due date rather than automatically using April 15.

One important distinction: an extension gives you more time to file the return and, for a SEP, more time to make the contribution. It generally does not give you more time to pay tax that was due with the original return.

Who Makes SEP IRA Contributions: Employer vs. Employee

A regular SEP is funded with employer contributions. An employee does not elect a salary deferral into the SEP the way an employee contributes to a 401(k). If you are self-employed, you wear both hats: you are the employer making the SEP contribution for yourself.

That is also why the regular SEP does not have the normal age-50 catch-up contribution you may associate with a 401(k). The IRS says elective salary deferrals and catch-up contributions are not permitted in regular SEP plans. Grandfathered SARSEPs established before 1997 follow separate rules.

There is one newer wrinkle the old version of this article missed: SECURE 2.0 permits a SEP arrangement to offer Roth SEP IRA treatment. That changes the tax treatment of the contribution when the plan offers the option; it does not turn a regular SEP into an employee salary-deferral plan. The IRS SECURE 2.0 guidance covers the Roth SEP reporting rules.

The Same-Percentage Rule When You Have Employees

If you have eligible employees, the contribution percentage is where a SEP can get expensive fast. Most SEPs, including the IRS model Form 5305-SEP, require allocations in the same percentage of compensation for all participants.

Do the employee math before choosing your percentage

If you contribute 15% for yourself under a SEP that requires proportional allocations, you generally contribute 15% of eligible compensation for each eligible employee as well. A contribution rate that feels easy when you are the only worker can become a meaningful payroll-sized expense after you hire.

This page is not trying to become a full SEP eligibility guide, but one current number matters for 2026: the IRS SEP minimum-compensation threshold is $800. Age, service, exclusions, and your written plan document still control who must be included. If you have employees, confirm eligibility before you calculate only your own contribution.

Can You Contribute to a SEP IRA and Another Retirement Account?

Usually, yes, but there are two different questions hiding inside that sentence.

SEP plus a traditional or Roth IRA: IRS guidance says employer SEP contributions do not reduce the separate annual amount you may contribute to a traditional or Roth IRA. Your personal IRA contribution still has its own eligibility and deduction rules.
SEP plus a retirement plan from another job: The IRS says you can establish a SEP for self-employment income even if you participate in an employer retirement plan at a second job.
SEP plus another plan maintained by the same business: This can be allowed, but the plan-document rules matter. For example, an employer generally cannot use Form 5305-SEP if it maintains another non-SEP retirement plan.

If your question is simply how several IRA accounts can coexist, my guide to how many IRAs you can have handles that account-structure question. The key point here is that your employer SEP contribution and your personal IRA contribution are not the same contribution bucket.

What to Check Before You Fund the SEP IRA

A SEP is simple to operate. The math is where simple can become expensive.

Do not use 25% of Schedule C profit for a self-employed owner. Use the self-employed calculation in Publication 560.
Confirm which tax year the deposit is for. A contribution made in 2027 can still be a 2026 SEP contribution when it is made by the applicable 2026 return deadline.
If you have employees, verify who is eligible before funding only yourself. A proportional-contribution rule can create required contributions for eligible employees.
Do not assume the financial institution is calculating your tax maximum. Your legal maximum depends on tax-return compensation and the plan rules, not simply on what the brokerage portal allows you to transfer.
Do not intentionally overfund and plan to “fix it later.” Excess SEP contributions can create income, deduction, and excise-tax complications. Use the IRS correction guidance if an excess actually occurs.

Michael Explains: Why the self-employed formula feels backward

Your contribution is based on your self-employed compensation, but your own SEP contribution helps determine that compensation. That circular relationship is why the IRS uses a reduced contribution rate. The clean shortcut is not “25% of profit.” It is: start with the tax-return numbers, adjust net earnings correctly, then apply the reduced rate.

What We Know About 2027 SEP IRA Limits and Deadlines

There are two different “2027” questions, and separating them prevents a lot of bad planning.

Funding a 2026 SEP in 2027: yes. A 2026 contribution can generally be established and deposited in 2027 by the employer’s 2026 federal return due date, including a valid extension.
The contribution limit for the 2027 tax year: not official yet. As of September 2, 2026, the IRS annual COLA table still publishes SEP limits through 2026: $72,000 maximum contribution, $360,000 maximum compensation, and $800 minimum compensation for 2026.

I would not put a projected 2027 SEP limit into a tax plan and call it a fact. The IRS adjusts these retirement-plan dollar limits for cost of living and will publish the official 2027 figures separately. Until then, keep the 25% employer rule, the self-employed calculation method, and the return-deadline framework as the durable planning rules, and update the dollar caps when the IRS releases them.

Michael’s rule for SEP deadlines

Do not ask only, “What is the maximum?” Ask, “Maximum based on whose compensation, for which tax year, and by which return deadline?” Those three questions catch most of the mistakes this page is designed to prevent.

Keep the SEP numbers current

SEP dollar limits are an annual-maintenance item. This page should be checked each fall after the IRS publishes the next year’s retirement-plan cost-of-living adjustments, and again if Congress or the IRS changes SEP contribution, Roth SEP, or plan-document rules.

Want the annual SEP update without re-learning the rules?

When the IRS changes retirement-plan limits, the useful part is not just the new number. It is knowing which number changes your actual contribution.

Get the new SEP IRA contribution and compensation caps when they become official.
See how the self-employed contribution calculation changes with the new tax-year inputs.
Catch deadline and retirement-plan rule changes before you fund the wrong amount.

One practical retirement-planning update at a time, with the number and the rule that controls it.

My bottom line: for 2026, remember $72,000, $360,000, and the 25%/20% distinction. Then attach those numbers to the right deadline. If you are self-employed, let the final tax-return math determine the maximum rather than treating “25%” as a shortcut.

Frequently Asked Questions

What is the SEP IRA contribution limit for 2026?

For 2026, employer SEP contributions are limited to the lesser of 25% of eligible compensation or $72,000 per participant. Compensation used for the calculation is capped at $360,000. Self-employed owners must use the special self-employed calculation rather than simply multiplying Schedule C profit by 25%.

What is the deadline for a 2026 SEP IRA contribution?

A SEP can generally be established and funded by the due date of the employer’s federal income tax return for 2026, including a valid extension. For a calendar-year sole proprietor filing Form 1040, that normally means April 15, 2027, or October 15, 2027 with a timely extension.

Can I make a SEP contribution after I already filed my tax return?

If you obtained a valid filing extension, IRS SEP guidance says you have until the end of that extension period to deposit the SEP contribution regardless of when you actually file the return. The deduction and return reporting still need to be handled correctly.

Can I contribute to a SEP IRA and a Roth IRA in the same year?

Yes. IRS guidance says employer SEP contributions do not reduce the separate annual amount you may contribute to a traditional or Roth IRA. Your personal IRA contribution remains subject to its own eligibility and deduction rules.

What is the SEP IRA contribution limit for 2027?

As of September 2, 2026, the IRS has not yet published the official 2027 SEP IRA dollar limits. The published 2026 limits are $72,000 for the maximum contribution and $360,000 for maximum compensation considered.