Working for yourself means nobody hands you a 401(k) enrollment packet, nobody matches your contributions, and nobody nudges you at open enrollment. It’s easy to conclude that serious retirement saving is an employee perk you gave up. The truth runs the other way: the IRS gives the self-employed some of the largest tax-advantaged savings limits in the entire code — up to $72,000 in 2026 — you just have to open the account yourself.

Whether you freelance full-time, run a shop, or drive on weekends, there’s a plan sized for you. Here are the main options the IRS lists for self-employed people, in rough order of how much work they take.

Start with the floor: an IRA

Anyone with earned income can fund an IRA, traditional or Roth. For 2026 the limit is $7,500, plus a $1,100 catch-up if you’re 50 or older. If your self-employment income is modest — a side gig measured in a few thousand dollars — an IRA alone may hold everything you can afford to save, with zero paperwork beyond opening the account.

The plans below don’t replace your IRA; they stack on top of it. They exist for the year your business starts producing more than an IRA can shelter.

The SEP-IRA: maximum simplicity

A Simplified Employee Pension is the easiest business retirement plan to run. You open a SEP-IRA at any major brokerage, and the business contributes a percentage of your compensation — up to 25%, capped at $72,000 for 2026. (Only compensation up to $360,000 counts toward the math in 2026.) Contributions are deductible to the business, and there’s no annual federal filing for the plan.

Two fine points matter for solo workers. First, if you’re unincorporated, the 25% is applied to net self-employment earnings after subtracting the deductible half of self-employment tax and the contribution itself — which works out to an effective rate of roughly 20% of your net profit. The rate table in IRS Publication 560 does the arithmetic for you. Second, timing is forgiving: you can set up and fund a SEP as late as your tax-filing deadline, extensions included, and still deduct it for the prior year. That makes the SEP the classic move for a self-employed person who discovers a big tax bill in the spring.

The catch: if you ever hire employees, a SEP requires you to contribute the same percentage for eligible workers as you do for yourself. Great fairness rule; expensive surprise if you didn’t plan for it.

The solo 401(k): more room at lower income

A one-participant 401(k) covers a business owner with no employees (a spouse who works in the business can join too). Its superpower is that you wear both hats and contribute in both roles:

• As employee: salary deferrals up to $24,500 for 2026, plus an $8,000 catch-up if you’re 50 or older.
• As employer: up to 25% of compensation on top (the same ~20%-of-net-profit math applies to the unincorporated).

Combined, contributions can reach the same $72,000 overall cap — not counting the catch-up. The practical difference from a SEP shows up at moderate incomes. Suppose your net profit supports about $12,000 of employer-side contribution under the percentage rules: with a SEP, $12,000 is your ceiling; with a solo 401(k), you can put in that $12,000 plus up to $24,500 of deferrals, because deferrals aren’t limited to a percentage of pay. For a self-employed person earning, say, $60,000–$100,000 who wants to save hard, the solo 401(k) usually wins.

The cost is a bit more ceremony: a plan document to adopt, and an annual Form 5500-series filing once plan assets pass $250,000. Most brokerages offer prototype plans that reduce the setup to paperwork.

The SIMPLE IRA: built for small teams

If you have a few employees and want a real plan without 401(k) administration, the SIMPLE IRA is the middle path. Employees (including you) can defer up to $17,000 in 2026, and the employer must either match up to 3% of pay or contribute 2% for everyone. Lower ceiling than the options above, but predictable costs and minimal upkeep — a fair trade for a genuine small business with staff.

How to choose in one paragraph

Side income under five figures: fund the IRA first. Solo and profitable, want the biggest possible deduction with the least paperwork, or it’s already spring and you’re fixing last year: SEP-IRA. Solo, moderate income, want to shelter the most dollars per dollar of profit: solo 401(k) — and note that either flavor can offer Roth treatment on some contributions if the provider supports it, so the traditional-versus-Roth choice travels with you here too. Employees on payroll: look at the SIMPLE, or a full 401(k) once the team grows.

Whichever you pick, the mechanism matters less than the habit it automates. An employee’s 401(k) works because the money leaves before it can be spent; self-employment removes that guardrail, so rebuild it — a standing monthly transfer into the plan, sized to your average month. The tax deduction is the incentive, but the transfer is the retirement.

This article was produced with AI assistance and reviewed by a human editor. Figures are linked to their primary sources; where a claim could not be verified from the public record, we say so.