SEP-IRA Contribution Limits 2026: How Self-Employed People Can Save on Taxes

A SEP-IRA, short for Simplified Employee Pension IRA, is the retirement plan I reach for when freelance profit finally becomes predictable enough to save. It is easier to administer than many employer plans and can allow a larger deductible contribution than a regular traditional IRA.

I am moving part of today's business profit into retirement, not finding a magic second deduction.

SEP-IRA rules are detailed, and the annual dollar cap can change. Because we could not confirm a final IRS 2026 SEP dollar limit from an official IRS page while preparing this article, verify the current limit in IRS Publication 560 and the IRS SEP resources before funding. The general structure is that employer SEP contributions are limited by a percentage of compensation and an annual dollar cap. For self-employed people, the calculation is not simply 25% of Schedule C profit because the contribution itself and the self-employment tax deduction affect the formula.

Who qualifies for a SEP-IRA?

Sole proprietors, independent contractors, partnerships, LLC owners taxed as sole proprietors or partnerships, and corporations can use SEP plans when they meet the rules. If you have employees, you must pay close attention to eligibility and equal-percentage contribution requirements. A solo freelancer with no employees has a simpler situation, but still needs to calculate the maximum contribution correctly.

How the deduction works

SEP contributions are generally deductible for income tax purposes, which can reduce taxable income dollar for dollar. A key nuance: retirement plan contributions usually reduce income tax, but they do not directly reduce self-employment tax for the year. Self-employment tax is calculated from net earnings from self-employment before the SEP contribution deduction. This is one reason quarterly estimates should separate income tax planning from self-employment tax planning.

Example contribution calculation

Suppose I have $123,840 of gross income and $16,275 of deductible business expenses. Net profit starts at $107,565.

I calculate self-employment tax and its half-SE-tax deduction before using the self-employed retirement-plan formula, commonly approximated around 20% of adjusted net earnings and still subject to the annual cap. I check the final number with tax software or the worksheet in Publication 560. The contribution screen at my brokerage labels the deposit an “employer contribution,” which made me think I had opened the wrong account the first time.

When using the MyTaxQuarter Tax Calculator, enter income and expenses first to estimate quarterly tax before retirement contributions. Then model SEP contributions as other deductions only for income tax planning. Do not double-count the automatic self-employment tax deduction. If you are near the health insurance subsidy cliff, use the ACA subsidy calculator and our ACA subsidy guide to see how reducing MAGI may affect coverage costs. For additional estimated-tax context, see our quarterly tax FAQ.

Deadline for 2026 contributions

SEP-IRA contributions can generally be made by the tax filing deadline for the business, including extensions. For many individual sole proprietors, that can mean as late as October 15, 2027 for the 2026 tax year if a valid extension is filed. The ability to decide after year-end is one reason SEP-IRAs are useful for freelancers with variable income.

SEP-IRA vs Solo 401(k)

Feature	SEP-IRA	Solo 401(k)
Administration	Usually simpler	More setup and rules
Employee deferral	No employee deferral	Can include employee deferral
Catch-up contributions	No catch-up contribution	Catch-up may apply when eligible
Good fit	Simple profitable solo business	Owners wanting higher savings flexibility

I can open a SEP-IRA at a major brokerage, but the logo matters less to me than fees, investment choices, support, and paperwork.

For official rules, I start with the IRS SEP FAQ and IRS Publication 560.