What Is a SEP IRA? 2026 Limits and Rules

1. Our verdict on the SEP IRA

Quick Answer: Open a SEP IRA if you are self-employed with no staff, want a large deduction, and want the paperwork done today. Skip it if you have employees you would have to fund at the same percentage as yourself, or if your profit is small enough that a plain IRA already covers what you can save.

Almost every guide to this account opens with the same number: $72,000. It is the headline, the reason the plan gets recommended, and the figure most self-employed readers will never get anywhere near.

To contribute $72,000 to a SEP IRA in 2026 you need roughly $376,500 of Schedule C profit. Below that, the number that matters is not the dollar cap at all. It is the percentage, and the percentage is smaller than the rulebook makes it look.

So we have built this the way we build every comparison at DollarVisor: the real ceiling first, then the state-by-state value of the deduction, then the one rule that quietly disqualifies most owners. Every 2026 figure below traces to the IRS, the SSA or a named state source, the same standard behind our investing guides. No company pays for placement in anything we publish.

Before the numbers, here is the plain-English version of what this account actually is.

2. What is a SEP IRA, exactly?

Quick Answer: A SEP IRA is a Simplified Employee Pension. Your business puts money into a traditional IRA opened in your name, deducts it, and you owe no tax until you withdraw. You cannot fund it from your own paycheck, which is the single biggest difference from a regular IRA.

The account itself is nothing exotic. The IRS states plainly in its SEP plan FAQs that a SEP IRA is a traditional IRA and follows the same investment, withdrawal and rollover rules as any other one. What is different is the plumbing that fills it.

Four features separate a SEP IRA from the accounts it gets confused with:

• Only the employer contributes. There is no salary deferral. If you are a sole proprietor, you are the employer, so the money still comes from you, but it is booked as a business contribution, not a personal one.
• There are no catch-up contributions. Turning 50 changes nothing here, because catch-ups apply only to employee deferrals. The extra room you get in a 401(k) has no equivalent in a SEP.
• You are not locked into contributing. Skip a bad year entirely, then put in the maximum the next year. Nothing obliges you to fund it annually.
• A Roth version now exists. Since 2023, SECURE 2.0 has allowed SEP contributions to go into a Roth IRA instead. The IRS confirms these amounts are reported on Form 1099-R and are taxable to you in the year they are made. Providers have been slow to offer it, so ask before you assume.

One point trips people up constantly. A SEP IRA does not use up your personal IRA limit. You can receive a SEP contribution and still put $7,500 into a Roth IRA in the same year, subject to the usual income rules.

3. The 2026 SEP IRA rules in one table

Quick Answer: For 2026 the SEP IRA cap is the lesser of 25% of compensation or $72,000, compensation counts only up to $360,000, and an employee earning $800 in the year becomes eligible. No deferrals, no catch-ups, and a deadline that stretches past your tax filing date: useful in any retirement plan.

Ten rules decide almost every SEP IRA question. Here they are with the 2026 figures attached.

Two rows do the most damage in practice. The $800 line is low enough that a part-time helper can qualify, and the 3-of-5 service test counts any work at all in a year, however brief.

The row people miss is the third one. The 25% in the rulebook is not the 25% you get, and the gap is worth thousands.

4. How much can you actually put in?

Quick Answer: If you file a Schedule C, your maximum SEP IRA contribution is about 18.6% of net profit, not 25%. On $100,000 of profit that is $18,587. You need roughly $376,500 of profit before the $72,000 dollar cap becomes the binding limit. Run the result through our retirement calculator to see what it grows into.

The shrinkage happens for two reasons, and the IRS spells both out in its guide to calculating your own retirement plan contribution. First, you subtract half your self-employment tax. Second, the 25% applies to your compensation after the contribution comes out, which turns 25% into 20% of what is left.

The first four rows all land on the same 18.6%. That is the number to memorise, because it holds for every sole proprietor earning under about $200,000.

Now compare the last two rows. Both contribute $72,000, but one earns $376,500 and the other $500,000. Past the cap, extra profit buys you no extra shelter at all, which is exactly the point where a different plan starts to look better.

5. What the deduction saves you in your state

Quick Answer: A maximum SEP IRA contribution on $150,000 of profit saves $2,593 in California and nothing at all in Texas, Florida or Pennsylvania. Pennsylvania is the surprise: it has an income tax but refuses the deduction. The spread mirrors what we found on Roth conversions.

The federal side is the same wherever you live. On $27,881 it is worth about $6,134 to someone in the 22% bracket. The state side is where the map matters.

Pennsylvania deserves a paragraph on its own. Its guide states that contributions a self-employed person makes to their own pension plan are not deductible as a business expense and are not otherwise excludable. Fund your employees’ SEP accounts and you can deduct that. Fund your own and you cannot.

The practical read is not “move to Texas”. It is that a California freelancer and a Pennsylvania freelancer with identical books get very different value from the same deposit, and only one of them should treat the state deduction as part of the decision.

6. The employee rule that ends the SEP for most owners

Quick Answer: Everyone in a SEP IRA gets the same percentage of pay. Take 25% for yourself and every eligible employee gets 25% too. With three staff on $48,000, funding your own $27,881 costs the business $63,881: the moment a solo 401(k) stops being an option and a different plan starts.

This is the rule that decides whether a SEP IRA is brilliant or unusable, and it has nothing to do with the contribution limits. The IRS requires most SEPs, including its own model Form 5305-SEP, to allocate the same percentage of pay to every participant. You cannot give yourself 25% and your staff 3%.

Look at the last column rather than the last row. Every hire you cover pushes more of the spending onto someone else’s retirement, and there is no vesting schedule to soften it. SEP money is 100% yours the day it lands, which is generous to staff and awkward for owners with turnover.

Two rules make this harder to dodge than owners expect. Anyone earning $800 in the year can qualify, and you must fund people who left mid-year if they were otherwise eligible.

7. The deadline advantage nobody else has

Quick Answer: You can open and fund a SEP IRA for last year right up to your business return due date, extensions included. That means October 15 for a sole proprietor who files an extension. No other retirement plan lets you create the account after the year has already closed, which is why investing guides keep recommending it late.

The IRS puts it in one sentence: you can set up a SEP for a year as late as the due date, including extensions, of your business’s income tax return for that year. Deposits follow the same clock.

That single rule is worth more than most of the limits above, for three reasons:

• You already know the number. Your profit is final, your bracket is knowable, and you can size the contribution to the deduction you actually want rather than to a guess made last January.
• A surprise tax bill has an answer. A March conversation with your accountant can still change the return, which is not true of a 401(k) that had to exist by December 31.
• The extension is free room. Filing Form 4868 or the business equivalent buys six extra months to find the cash, without changing what you may contribute.

The catch is that this same flexibility is what makes people put it off for years. A SEP IRA that never gets funded is not a plan, it is an intention.

8. Four things a SEP IRA cannot do

Quick Answer: A SEP IRA cannot take catch-up contributions, cannot lend you money, cannot be funded out of a small profit in any useful amount, and cannot sit quietly beside a backdoor Roth IRA without triggering the pro-rata rule. Each limit hits a different type of owner.

The gaps matter more than the headline number, because each one rules out a group of people the plan is usually pitched to.

• No catch-up at 50 or 60. A 58-year-old consultant closing a retirement gap gets no extra room here. A solo 401(k) would allow an $8,000 catch-up on top of deferrals.
• No loans. IRAs cannot lend, so the balance is untouchable before 59½ without tax and a 10% penalty.
• Nothing much on a small profit. At $30,000 of profit your maximum is about $5,576, less than the $7,500 you could simply put in a personal IRA.
• It poisons the backdoor Roth. The pro-rata rule counts every traditional, SEP and SIMPLE IRA as one pot, so a SEP balance makes a backdoor conversion mostly taxable.

The fourth is the expensive one for high earners. If your income rules out a direct Roth contribution and you were relying on the backdoor route, opening a SEP IRA can close it in the same afternoon.

9. How to open and fund a SEP IRA

Quick Answer: Five steps: sign a written plan agreement, tell any eligible employees, open the accounts at a brokerage, calculate your own contribution, then deposit and deduct it. Most sole proprietors finish the whole thing in under an hour and pay nothing to set it up.

1. Adopt a written agreement. Form 5305-SEP is free and takes minutes, or your broker will hand you its own prototype document. You only need the prototype if you also run another plan.
2. Notify every eligible employee. Give them a copy of the agreement and its instructions. Skipping this is the most common compliance failure the IRS lists.
3. Open a SEP IRA per participant. Every major broker offers them, and each employee owns and controls their own account from day one.
4. Calculate your own number. Net profit, minus half your self-employment tax, times 20%. Capped at $72,000 for 2026.
5. Deposit it and claim the deduction. Sole proprietors deduct their own contribution on Schedule 1 of Form 1040, never on Schedule C. Employee contributions go on the business return.

Step five is where returns get amended. Deducting your own contribution on Schedule C understates your self-employment tax and forces a correction later.

One more thing worth doing on day one: set the money to invest automatically rather than sit in cash. A single annual deposit is lumpy by nature, so spreading it across the year is the simplest fix if the cash flow allows it.

10. So should you use a SEP IRA in 2026?

Quick Answer: Yes if you are a solo operator with real profit who wants the deduction settled at filing time. No if you have two or more employees, if you are over 50 and behind, or if a backdoor Roth matters to you. See how we build these comparisons before relying on the figures.

Three profiles cover most readers.

1. Solo, profitable, no staff. Open one. The 18.6% ceiling is plenty at this stage, setup is free, and the deadline flexibility is worth real money at tax time.
2. Two or more eligible employees. Price the uniform percentage first. Most owners in this position end up with a plan that lets staff fund themselves rather than one that forces the business to match everyone.
3. Over 50, high income, or running a backdoor Roth. Look elsewhere first. The missing catch-up and the pro-rata problem cost more than the simplicity saves.

Treat the SEP IRA as the plan you outgrow rather than the plan you settle on. It is unbeatable for the first few profitable years of a one-person business, and it starts to cost you the moment either the headcount or the birthday changes. We update these figures whenever the IRS and the states publish new ones, and companies cannot pay for placement in anything we publish.

11. Frequently Asked Questions

Short answers to the questions readers send us most. If you are comparing plans rather than learning this one, start with our solo 401(k) and SEP IRA comparison.

1. What is the 2026 SEP IRA contribution limit?

The lesser of 25% of compensation or $72,000, and only the first $360,000 of compensation counts. If you are self-employed, the practical limit is about 18.6% of your Schedule C net profit, because you first subtract half your self-employment tax and then apply a 20% rate to what remains.

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

Yes. A SEP contribution comes from your business and does not use up your personal IRA limit, so you can still put $7,500 into a Roth IRA for 2026 if your income allows it. What a SEP balance can affect is a backdoor Roth conversion, through the pro-rata rule.

3. Do I have to contribute for my employees every year?

You never have to contribute at all in a given year. But in any year you do fund your own account, every eligible employee must receive the same percentage of their pay. There is no way to fund yourself and skip your staff.

4. When is the deadline to open a SEP IRA for last year?

Your business income tax return due date for that year, including extensions. A sole proprietor who files an extension has until October 15 to both create the plan and deposit the money. No other retirement plan can be opened after the tax year has ended.

5. Can I take money out of a SEP IRA early?

You can, but it is treated like any traditional IRA withdrawal: ordinary income tax, plus a 10% penalty before age 59½ unless an exception applies. There are no loans from a SEP IRA, so treat the balance as locked until retirement.

This article is information, not financial or tax advice. Contribution limits, state rules and eligibility thresholds change; confirm current figures with the IRS and your state revenue department, or a qualified tax professional, before you act. See our full disclaimer.