Retirement Plans for the Self-Employed: SEP-IRA, Solo 401(k), and SIMPLE IRA

Self-employed people have three main retirement plans, the SEP-IRA, the Solo 401(k), and the SIMPLE IRA, and all of them let you save far more than a regular IRA. The reason is simple: when you work for yourself, you are both the employer and the employee, so you get to contribute in both roles. That is the trick that turns a modest $7,500 IRA limit into tens of thousands of dollars of tax-advantaged saving.

When I left teaching I did some freelance curriculum work, and I quickly learned that being self-employed is a mix of freedom and homework. Nobody auto-enrolls you in a plan; you have to set it up yourself. Here is how the three main options work, checked by a CERTIFIED FINANCIAL PLANNER, so you can pick the one that fits. For where this sits in the bigger picture, see our guide to retirement planning.

Why self-employed plans are so generous

These plans allow large contributions because you wear two hats: you put money in as the employee and again as the employer. A regular IRA caps you at $7,500 in 2026 (plus a $1,100 catch-up at 50 and over). The self-employed plans blow past that.

In a normal job, your employer might match part of your 401(k). When you are the business, you are the one funding both the employee deferral and the employer contribution. That is why a freelancer earning a solid income can shelter far more than an employee on the same salary. It is one of the genuine financial perks of working for yourself, and it is easy to leave on the table simply by not setting up a plan.

The SEP-IRA: simple and flexible

A SEP-IRA lets you, as the employer, contribute up to 25% of your compensation, up to the IRS limit, with very little paperwork. SEP stands for Simplified Employee Pension, and “simplified” is the selling point. You can open one at most brokerages, and contributions are flexible: you can vary or skip them in a lean year.

Key features:

• Contributions come from the employer side only (you), up to 25% of compensation, capped at the annual IRS limit.
• Deduction: contributions are generally pre-tax and reduce your taxable income for the year. The money grows tax-deferred and is taxed as ordinary income when you withdraw it.
• Catch: if you have employees, you generally must contribute the same percentage for them as for yourself, which can get expensive.

The SEP-IRA is a great fit for a solo freelancer or consultant who wants high limits without administrative fuss. For how the money grows once it is in, see how retirement accounts are invested.

The Solo 401(k): the highest limits for one-person businesses

A Solo 401(k) usually allows the largest total contribution because you can make an employee contribution of up to $24,500 in 2026 plus a separate employer contribution. It is built for a business owner with no full-time employees other than a spouse.

The two-part structure is the whole point:

• Employee contribution: up to $24,500 in 2026, the same as any 401(k) employee limit, plus catch-up contributions of $8,000 at 50 and over (and a higher $11,250 catch-up for ages 60 to 63).
• Employer contribution: an additional profit-sharing contribution on top, subject to an overall IRS cap on the combined total.
• Roth option: many Solo 401(k) plans offer a Roth bucket, so you can choose traditional vs Roth treatment.

Because the employee contribution is a flat dollar amount rather than a percentage, a Solo 401(k) often beats a SEP-IRA for someone with moderate self-employment income who wants to save aggressively. The trade-off is a bit more setup and, eventually, some IRS paperwork once the account grows. See retirement contribution limits for the full table.

The SIMPLE IRA: for small businesses with employees

A SIMPLE IRA is designed for small businesses, generally with 100 or fewer employees, that want an easy plan with employer contributions for staff. SIMPLE stands for Savings Incentive Match Plan for Employees, and it sits between a personal IRA and a full 401(k).

What stands out:

• Employee contributions are allowed up to an annual limit that is lower than a 401(k)‘s but higher than a regular IRA’s.
• Employer contributions are required, usually as a match or a flat percentage for all eligible employees.
• Low admin: less complex and cheaper to run than a traditional 401(k), which is why small firms like it.

If you have a few employees and want to offer a retirement benefit without the cost of a full 401(k), the SIMPLE IRA is the usual answer. If it is just you, the SEP-IRA or Solo 401(k) will almost always let you save more.

How to choose

The right plan comes down to whether you have employees, how high your income is, and how much paperwork you can stomach. A rough guide:

• Just you, want maximum savings: a Solo 401(k) usually wins on total contribution room.
• Just you, want maximum simplicity: a SEP-IRA is easy to open and run.
• A small team: a SIMPLE IRA, or a full 401(k) as you grow.

Remember that all of these are invested, so the value can lose money as well as grow, and you may get back less than you put in. Withdrawals before 59½ generally face a 10% early-withdrawal penalty on top of income tax, as with any retirement account; see accessing your retirement savings.

This is general information, not personalized tax or financial advice. The exact deductible contribution for a self-employed person is based on net earnings and the specific plan rules, and the figures here are for 2026 and change annually. Because the numbers and the interaction with your other accounts get technical fast, this is a good moment to talk to a tax professional, and for the wider plan, a fiduciary advisor. See choosing a financial advisor, and check the free official guidance at IRS.gov and Investor.gov.