What Is a SEP IRA? A Powerful Retirement Plan for the Self-Employed
✦ Key takeaways
- A SEP IRA is a retirement plan for the self-employed and small businesses with much higher contribution limits than a regular IRA.
- In 2025 you can contribute up to 25% of net self-employment income or $70,000 — whichever is less.
- Contributions are tax-deductible and grow tax-deferred until withdrawals after age 59½.
- It's cheap and easy to open, but if you have employees you must contribute the same percentage for them.
If your income comes from freelancing or a small business, you don't have an employer setting up a retirement plan for you the way employees do. That's where a SEP IRA (Simplified Employee Pension) comes in — a simple retirement account designed for the self-employed and small companies that lets you save far more than a traditional IRA.
The idea in plain terms
A SEP IRA is essentially a supersized IRA. Instead of being capped at $7,000 a year (the 2025 regular IRA limit), you can set aside a large percentage of your income. The money you contribute is deducted from this year's taxable income, grows inside the account without annual taxes on gains, and is taxed only when you withdraw it in retirement.
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How much can you contribute?
The 2025 limit is the lesser of: 25% of your net business income, or $70,000. For a self-employed person the math is slightly different because of the self-employment tax deduction, so the effective rate works out to roughly ~20% of net profit. This table shows how it compares to other plans:
| Plan | 2025 contribution limit | Best for |
|---|---|---|
| Traditional/Roth IRA | $7,000 (+$1,000 over 50) | Anyone with income |
| SEP IRA | Up to 25% or $70,000 | Self-employed & small firms |
| Solo 401(k) | Up to $70,000 + employee deferral | Freelancers with no staff |
| SIMPLE IRA | $16,500 (+ catch-up) | Firms up to 100 employees |
The key benefits
The first advantage is the large tax deduction: if you contribute $30,000, it comes off your taxable income and can save you thousands on your tax bill. The second is simplicity: you can open one in minutes at any brokerage (Fidelity, Vanguard, Schwab) with no complex annual administration. The third is flexibility — you aren't required to contribute the same amount every year; in a lean year you can reduce or skip it.
The drawbacks and warnings
The biggest thing to watch: if you have employees, the law requires you to contribute the same percentage for them as you do for yourself. Put 20% away for yourself and you must put 20% of each eligible employee's salary too — which can get expensive. There's also no "Roth" option in a traditional SEP (all contributions are pre-tax, so you pay tax on withdrawal), and withdrawals before age 59½ face a 10% penalty plus tax.
Who is it best for?
A SEP IRA is ideal for a freelancer or sole proprietor with solid income who wants to sock away a large sum for retirement with minimal admin. But if you're a solo operator with no employees and want to contribute even more, a Solo 401(k) may give you more room (because it allows both an employee and an employer contribution). Compare the two based on your income and goals.
The bottom line
A SEP IRA is a powerful way to turn part of your self-employment income into retirement savings with an immediate tax benefit. Start by calculating your annual net profit, multiply by the allowed percentage, and open the account at a trusted brokerage before your tax-filing deadline. Even a modest, regular contribution adds up dramatically thanks to compounding over the years.