SEP IRAs do not allow catch-up contributions. Turning 50, 60, or any other age does not unlock additional room in a Simplified Employee Pension IRA, because the IRS prohibits both elective salary deferrals and catch-up contributions in SEP plans. The ceiling for 2026 is the lesser of 25% of compensation or $72,000, and it applies whether you are 35 or 75.1Internal Revenue Service. SEP Contribution Limits Including Grandfathered SARSEPs If you are over 50 and want an age-based boost, you will have to get it from a different account.
Why a SEP IRA Has No Catch-Up Option
Catch-up contributions exist in plans where the employee makes their own deferrals out of pay. Once a participant reaches 50, the IRS lets them defer an additional amount above the standard limit. That structure is how 401(k)s, 403(b)s, and traditional and Roth IRAs work.
A SEP IRA is built differently. Every dollar that goes into a SEP is classified as an employer contribution, even when you are self-employed and functionally paying yourself. There are no employee deferrals in a SEP, so there is nothing for a catch-up rule to attach to. The IRS states plainly that elective salary deferrals and catch-up contributions are not permitted in SEP plans.1Internal Revenue Service. SEP Contribution Limits Including Grandfathered SARSEPs
The consolation is that the standard SEP limit is already large. A 401(k) participant under 50 can defer only $24,500 in personal contributions for 2026, and even with the age-50 catch-up, that personal deferral tops out at $32,500. The SEP’s $72,000 employer-side ceiling sits well above those numbers on its own.
The 2026 Number and the Compensation Cap
For 2026, your SEP contribution is capped at the lesser of 25% of compensation or $72,000. The maximum compensation the IRS lets you count in that calculation is $360,000.2Internal Revenue Service. COLA Increases for Dollar Limitations on Benefits and Contributions Earn more than that and the extra income does not raise your contribution base. The $72,000 hard cap kicks in first regardless.
None of those figures move because you turned 50. There is no separate “age 50 and older” column for SEPs the way there is for 401(k)s and IRAs.
Add a Traditional or Roth IRA on Top
Contributions to a SEP and contributions to your own IRA count against separate limits. You can fund both in the same year. For 2026, the personal IRA contribution limit is $7,500, with an additional $1,100 catch-up if you are 50 or older, for a personal IRA total of $8,600.3Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026; IRA Limit Increases to $7,500
This is the closest thing to a catch-up available to a SEP participant without changing plans. The catch is deductibility. Because the IRS treats a SEP as an employer-sponsored retirement plan, your ability to deduct a traditional IRA contribution phases out at higher income levels. Above the phase-out range, you can still contribute, but the contribution is nondeductible. It will grow tax-deferred, and a Roth IRA contribution follows separate income rules of its own. Either way, that extra $8,600 is the age-50 lever a SEP holder still has without switching plan types.
Switch to a Solo 401(k) for a Real Age-Based Boost
If you are self-employed with no employees other than a spouse, a solo 401(k) is the direct route to catch-up contributions. It lets you make employee deferrals and employer profit-sharing contributions in the same plan, and the employee side carries the age-based add-ons a SEP lacks.
The 2026 pieces work like this:4Fidelity. 401(k) Contribution Limits
- Employee deferral under 50: $24,500.
- Standard catch-up at ages 50 through 59 and 64 and older: an additional $8,000, for a total deferral of $32,500.
- Super catch-up at ages 60 through 63: an additional $11,250 instead of $8,000, for a total deferral of $35,750.
- Employer profit-sharing: up to 25% of compensation on top of the deferral.
- Combined limit across all sources: $72,000 before catch-up amounts are added.
A 62-year-old with strong self-employment income could stack $72,000 plus the $11,250 super catch-up and land at $83,250 in a solo 401(k). The same person in a SEP is stopped at $72,000. The super catch-up for ages 60 through 63 was created by the SECURE 2.0 Act and took effect in 2025. It applies to employer-sponsored plans like 401(k)s and does not apply to traditional IRAs.
What you give up is simplicity. A solo 401(k) requires more administrative attention than a SEP, and once plan assets pass $250,000 you have to file Form 5500-EZ each year. A SEP generally has no filing requirements at all.5Internal Revenue Service. Simplified Employee Pension Plan (SEP) For someone under 50, the maximum contribution is the same $72,000 in either plan, so the SEP’s easier upkeep tends to win. Past 50, the calculus flips because only the 401(k) offers the catch-up.
If You Already Contributed Thinking a Catch-Up Applied
Depositing more than your calculated SEP maximum triggers a 6% excise tax on the excess for every year it remains in the account.6Internal Revenue Service. Retirement Topics – IRA Contribution Limits The tax compounds annually, so catching a mistaken “catch-up” deposit early matters.
To avoid the penalty, withdraw the excess plus any earnings attributable to it before the due date of your federal income tax return, including extensions.7Internal Revenue Service. Retirement Plans FAQs Regarding SEPs For a sole proprietor on extension, that deadline is typically October 15 of the following year. Correct it in time and the excess is treated as if it was never contributed.
Miss the deadline and the attributable earnings become taxable income, a 10% early withdrawal penalty may apply if you are under 59½, and you will need to report the excise tax on Form 5329 for every year the excess sat in the account.8Internal Revenue Service. Instructions for Form 5329
Choosing Your Next Move
If you are happy with $72,000 as your ceiling and you want the lightest possible plan, stay with the SEP and layer a traditional or Roth IRA on top for the $8,600 personal add. If you want the age-50 catch-up, or the larger age-60-through-63 super catch-up, a solo 401(k) is the plan that has them. The SEP itself will not get you there at any age.