Best Retirement Plans for the Self-Employed: A 2026 Guide

Estimated read time: 11 minutes

Nobody hands you a benefits packet when you go out on your own. There is no HR portal, no automatic 6 percent deferral, no smug little chart showing your employer match vesting over four years. There is just you, an inbox full of invoices, and a low-grade guilt that hums in the background every April. The guilt is warranted. It is also fixable in about ninety minutes, once you understand that the alphabet soup of self-employed retirement plans comes down to four options, and that one of them is usually obviously better than the rest. Which one depends on how much you earn, whether you have employees, and how much you actually want to shelter this year. Here are the 2026 rules, verified against IRS Notice 2025-67.

Why retirement saving is different when you work for yourself

When you are an employee, your 401(k) has two funding sources: your salary deferral and your employer’s match. You only ever feel one of them. When you are self-employed, you are both parties. That is a burden, since you also pay both halves of Social Security and Medicare. It is also an advantage most freelancers never exploit: you get to make the employee contribution and the employer contribution into the same account, and deduct a large portion of it. That is the entire reason the Solo 401(k) beats the SEP IRA at moderate incomes. Both allow an employer contribution of roughly 20 percent of net earnings. Only one lets you stack $24,500 on top.

One piece of mechanics first. For the self-employed, “compensation” is not gross revenue and not quite Schedule C net profit either. It is net profit minus half your self-employment tax. And when a plan says “25 percent of compensation,” the effective figure for a sole proprietor is about 20 percent, because the contribution reduces the base it is calculated from. Not a trick, just circular math the IRS resolved with a worksheet in Publication 560. Every provider’s calculator handles it for you.

The Solo 401(k), explained

A Solo 401(k) (also sold as an Individual 401(k) or self-employed 401(k)) is a real 401(k) where you are the only participant. A spouse who works in the business can also participate, which roughly doubles household capacity.

Who qualifies: any self-employed person with no full-time employees other than themselves and a spouse. Independent contractors, single-member LLCs, S corps, and partnerships all count. Paying 1099 contractors does not disqualify you. One W-2 employee working enough hours does.

2026 limits:

• Employee deferral: up to $24,500, pre-tax or Roth, your choice.
• Catch-up at 50 or older: an additional $8,000, for $32,500 in deferrals.
• Enhanced catch-up if you turn 60, 61, 62, or 63 during 2026: $11,250 instead of $8,000, if your plan document allows it.
• Employer profit-sharing: up to 25 percent of compensation, roughly 20 percent of net earnings for a sole proprietor.
• Combined ceiling: $72,000, or $80,000 with the age 50 catch-up, or $83,250 with the age 60 to 63 catch-up. You also cannot exceed 100 percent of earned income.

The employee deferral is what makes this plan special. At $60,000 of net profit, a SEP shelters roughly $11,000. A Solo 401(k) shelters that same $11,000 plus up to $24,500 more.

Roth is available, and it matters. Most providers let you designate the employee deferral as Roth. There is no income limit on Roth 401(k) deferrals, which is why high earners locked out of a Roth IRA still get Roth exposure here.

One 2026 wrinkle. Under SECURE 2.0, catch-up contributions must be Roth for participants whose prior-year FICA wages from the plan sponsor exceeded a threshold, set by Notice 2025-67 at $150,000 of 2025 wages. The useful part here: the rule keys off W-2 FICA wages. A sole proprietor or partner with no W-2 wages generally has none of the wages the rule measures, so it typically does not reach them. If you run an S corp and pay yourself a salary above that threshold, it does.

The downside: you have to establish the plan on time, and once assets exceed $250,000 at year-end you owe an annual Form 5500-EZ. Short form. Still a form.

The SEP IRA, explained

A SEP IRA is the low-effort option. No plan document, no annual filing, ten minutes to open at any major brokerage. Only the employer contributes, and as a self-employed person that is still you, but everything goes in as an employer contribution. There is no employee deferral, which is the entire limitation.

2026 limits: the lesser of 25 percent of compensation or $72,000. For a sole proprietor, that becomes roughly 20 percent of net earnings. Countable compensation is capped at $360,000, so that is about what you need to max a SEP out.

No catch-up contributions. If you are 55 and behind, the SEP gives you no extra room. The Solo 401(k) gives you $8,000.

The killer feature is timing. You can open and fund a SEP right up to your tax filing deadline including extensions. If it is September 2027 and your accountant says you owe more than expected on 2026, a SEP is one of the few levers still available.

The employee problem: if you hire, every eligible employee gets the same contribution percentage you give yourself. Eligibility generally covers employees who are at least 21, worked for you in three of the last five years, and earned at least $800 in 2026.

Roth and Traditional IRAs, explained

Your personal IRA is separate from your business plan, and you can fund both in the same year. This is the most commonly missed point in the entire subject.

2026 limits: $7,500 total across all your IRAs, plus a $1,100 catch-up at 50 or older, for $8,600.

Roth IRA phase-outs for 2026: $153,000 to $168,000 of modified AGI for single and head of household filers, $242,000 to $252,000 for married filing jointly, and $0 to $10,000 for married filing separately.

Inside the range your allowed contribution shrinks proportionally. Above the top number, direct Roth contributions are gone, though the backdoor Roth (a nondeductible traditional IRA contribution followed by a conversion) remains a well-worn path. The pro-rata rule makes that messy if you hold other pre-tax IRA money, and a SEP balance counts. That is a concrete reason a Solo 401(k) beats a SEP for high earners: 401(k) balances do not pollute the backdoor Roth calculation.

Traditional IRA deductibility for 2026: if you are covered by a workplace plan (your own Solo 401(k) or SEP counts), the deduction phases out between $81,000 and $91,000 single, and $129,000 and $149,000 joint when the contributing spouse is the covered one. If neither spouse is covered, there is no income limit at all. Translation: once you have a business plan, a traditional IRA contribution is often nondeductible, which makes the Roth the more useful of the two.

The SIMPLE IRA, briefly

SIMPLE stands for Savings Incentive Match Plan for Employees, and the name tells you the audience.

2026 limits: the standard employee deferral is $17,000, or $18,100 for employers with 25 or fewer employees. Catch-up at 50 and over is $4,000 generally and $3,850 in the higher-limit plans, with $5,250 for ages 60 to 63. The employer must either match deferrals up to 3 percent of compensation or make a 2 percent nonelective contribution for everyone.

Why you probably do not want one: the deferral limit sits below the Solo 401(k)’s $24,500, the employer contribution caps at 3 percent instead of roughly 20 percent, and the plan must exist by October 1 of the year it applies to, with no extensions.

When it makes sense: you have a handful of employees and you do not want to pay for full 401(k) administration or nondiscrimination testing. Real use case. Just not the freelancer use case.

2026 contribution limits, side by side

	Solo 401(k)	SEP IRA	Roth IRA	SIMPLE IRA
Employee deferral	$24,500	None	$7,500 (total IRA limit)	$17,000, or $18,100 for employers with 25 or fewer employees
Age 50+ catch-up	$8,000	None	$1,100	$4,000, or $3,850 in higher-limit plans
Age 60 to 63 catch-up	$11,250	None	$1,100	$5,250
Employer contribution	Up to 25% of compensation (about 20% of net earnings)	Up to 25% of compensation (about 20% of net earnings)	None	3% match or 2% nonelective
Total 2026 ceiling	$72,000 ($80,000 at 50+, $83,250 at 60 to 63)	$72,000	$8,600 at 50+	Deferral plus employer contribution
Roth version available	Yes, at most providers	Rare in practice	It is the Roth	Permitted by SECURE 2.0, provider support varies
Income limits to contribute	None	None	$153,000 to $168,000 single, $242,000 to $252,000 joint	None
Can you have employees	No, other than a spouse	Yes	N/A	Yes, generally up to 100
Annual IRS filing	Form 5500-EZ once assets exceed $250,000	None	None	None

Countable compensation for the employer contribution is capped at $360,000 for 2026 under all of these.

Worked examples: what you can actually put away

All of these assume a sole proprietor filing Schedule C, under age 50, no employees. Figures rounded. The 2026 Social Security wage base is $184,500, so self-employment tax runs at the full 15.3 percent below that.

Example one: $90,000 of net profit. Self-employment tax applies to 92.35 percent of net profit, or $83,115. At 15.3 percent that is about $12,717, and half of it ($6,358) is deductible. Net earnings for plan purposes: roughly $83,642.

• Solo 401(k): $24,500 deferral plus about $16,730 employer contribution equals roughly $41,230
• SEP IRA: about $16,730
• Roth IRA: $7,500, comfortably under the phase-out
• SIMPLE IRA: $18,100 deferral plus a 3 percent match of about $2,510 equals roughly $20,610

The Solo 401(k) shelters about two and a half times what the SEP does at identical income. Add the Roth IRA and you are near $48,730 sheltered on $90,000 of profit.

Example two: $180,000 of net profit. Net earnings come to about $167,283.

• Solo 401(k): $24,500 plus about $33,460 equals roughly $57,960
• SEP IRA: about $33,460
• Roth IRA: $0 directly if you file single, since $180,000 clears the $168,000 ceiling. The backdoor is the workaround, and it is much cleaner without a SEP balance sitting there.

Example three: the crossover. The Solo 401(k)’s advantage is a flat $24,500 until you hit the ceiling. You reach $72,000 in a Solo 401(k) at roughly $250,000 of net profit. You do not reach $72,000 in a SEP until compensation is around $360,000. Only above $360,000 do they tie.

There is essentially no income level where a SEP beats a Solo 401(k) on capacity. The SEP wins on convenience and deadlines, never on math. This is information rather than personalized financial or tax advice, and the right answer depends on your entity type, your state, and the rest of your return, so run your own numbers with someone who has seen them.

How to actually pick

Do you have employees other than a spouse? If yes, the Solo 401(k) is out. Compare a SIMPLE IRA against a SEP against a small-business 401(k), and expect the decision to hinge on how much you are willing to contribute on your employees’ behalf.

Is it already past your filing deadline for last year? A SEP is likely your only retroactive option, and you should open a Solo 401(k) for the current year while you are at it. (Worth reading alongside our guide to when a side hustle should become an LLC, since entity choice affects how these contributions get calculated.)

Do you want to save more than roughly 20 percent of net earnings? Then you need the employee deferral, which means a Solo 401(k).

Are you a high earner protecting a clean backdoor Roth? Solo 401(k), and no SEP balance.

Do you genuinely hate paperwork and earn enough that 20 percent is plenty? A SEP is defensible. The best plan is the one you actually fund. Either way, add a Roth IRA if your income allows it.

Where to open the account and what it costs

The mainstream Solo 401(k) is close to free.

Fidelity offers a self-employed 401(k) with no setup fee and no account maintenance fee, and its current plan documentation supports both pre-tax and Roth deferrals. Roth capability is a relatively recent addition, so older articles saying otherwise are out of date.

Charles Schwab offers an Individual 401(k) with no fee to open or maintain, and supports both traditional and Roth contributions.

Vanguard no longer runs its own Individual 401(k). Vanguard announced in April 2024 that Ascensus would acquire its Individual 401(k), SEP IRA, and SIMPLE IRA business. Ascensus charges recordkeeping fees, but I could not verify the current schedule, so treat any figure quoted elsewhere as unconfirmed.

Carry is a flat-fee specialist for people who want features the big brokerages skip, including automated mega backdoor Roth and alternative assets. Third-party reviews put its entry tier around $299 per year, which I could not verify on Carry’s own pricing page.

Guideline is primarily a full-service provider for companies with employees, and its pricing is asset-based rather than flat. I could not verify a published solo-tier price, so treat it as a get-a-quote situation.

Checkbook-control providers such as My Solo 401k Financial and Rocket Dollar exist for people holding real estate or private lending inside the plan, and they charge real annual fees, typically in the hundreds of dollars.

SEP IRAs are essentially free everywhere, because a SEP is just an IRA with a different funding rule attached. The honest summary: unless you need alternative assets, a mega backdoor Roth strategy, or plan loans, open at Fidelity or Schwab, pay nothing, and buy a broad index fund.

Deadlines and paperwork

This is where people lose thousands of dollars for no reason.

Solo 401(k): for an existing plan, your employee deferral election generally has to be in place by December 31 of the plan year. That is the deadline that catches people. Under SECURE 2.0 Section 317, a sole proprietor opening a first-year plan can establish it and make retroactive employee deferrals up to the original tax return due date, but critically, without extensions. Employer profit-sharing contributions can be made up to the filing deadline including extensions.

SEP IRA: establish and fund by your tax filing deadline including extensions. The most forgiving deadline in the category.

Roth or Traditional IRA: fund by the April filing deadline for the prior tax year. Extensions do not help.

SIMPLE IRA: establish between January 1 and October 1 of the year it applies to.

Form 5500-EZ: required once Solo 401(k) assets exceed $250,000 at plan year-end, due July 31 for calendar-year plans. Once you cross the threshold you file every year afterward, even if the balance dips back down.

You will also need an EIN, which takes five minutes on the IRS website. If you are thinking about formalizing the business itself, our walkthrough on setting up an LLC in about 30 minutes covers that paperwork.

Common mistakes

Waiting until April to open a Solo 401(k) for last year. Unless it is your first plan year, the deferral portion is already gone.

Confusing gross revenue with net earnings. Your contribution is based on net profit minus half your self-employment tax, not what clients paid you. Overcontributing triggers a 6 percent excise tax per year until you fix it.

Skipping the IRA because you have a business plan. Separate buckets. Fund both.

Letting a SEP balance sit there while doing backdoor Roth conversions. The pro-rata rule taxes part of every conversion. Roll the SEP into a Solo 401(k) first if your plan accepts rollovers.

Hiring an employee and forgetting your plan exists. A W-2 hire can disqualify a Solo 401(k), or obligate a SEP contribution for that person at your own percentage.

Contributing and then leaving it in cash. A tax-advantaged account parked in a money market is a tax-advantaged savings account.

Frequently Asked Questions

Can I have both a Solo 401(k) and a SEP IRA? Yes, but the $72,000 total limit applies across plans of the same employer, so holding both rarely increases what you can contribute. Most people who have both are just carrying a SEP from an earlier year. Consolidating is cleaner.

What if I have a day job with a 401(k) and freelance on the side? Your $24,500 deferral limit is per person, not per plan, so it is shared across both plans. The employer contribution limit is per employer, so your side business can still make a profit-sharing contribution based on its own net earnings, up to the $72,000 ceiling for that plan.

Is Roth or pre-tax better? It depends on whether your tax rate is higher now or later, which nobody knows. The practical answer for self-employed people is that income is volatile: lean Roth in low-income years, pre-tax in high ones.

Can my spouse contribute too? If your spouse genuinely works in the business and is compensated by it, they can participate in your Solo 401(k) with their own deferral and employer contribution, which roughly doubles household capacity. It has to be a real working arrangement, not a paperwork exercise.

Do these plans lower my self-employment tax? No. Contributions reduce income tax, not self-employment tax, which is calculated on net profit before retirement contributions.

Can I get money out early if the business has a bad year? A Solo 401(k) can permit participant loans if the plan document allows, up to the lesser of $50,000 or half your vested balance. IRAs and SEPs do not offer loans, and early withdrawals generally trigger income tax plus a 10 percent penalty before age 59 and a half. Roth IRA contributions (not earnings) can come out any time without tax or penalty, which is a quiet argument for keeping one funded.

Related Coverage

• How to Set Up an LLC in 30 Minutes: the entity paperwork that determines how your retirement contributions get calculated.
• Side Hustle vs. LLC: When to Make It Official: a useful gut check before you start opening business retirement accounts.
• Best CRM for Solopreneurs: because the income you are sheltering has to come from somewhere first.

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