Self employed retirement plans are the biggest financial advantage most freelancers never use. After walking dozens of consultants and solo business owners through this decision, I have found the same blocker every time: people assume that losing an employer 401(k) means losing the ability to save seriously.
The opposite is true. A self-employed person can shelter far more income than a typical W-2 employee, and the contribution counts as a deduction against this year’s tax bill.
This guide compares every one of the self employed retirement plans available to you, with the current contribution limits, the tradeoffs of each, and a process for opening an account. Retirement decisions are personal, so treat this as a map rather than a recommendation and confirm your own numbers with a CPA or licensed advisor.
Why self employed retirement plans matter more than you think
When you work for a company, retirement happens on autopilot. Payroll deducts a percentage, the employer matches some of it, and a benefits administrator handles compliance.
Go independent and all four of those jobs land on you: deciding to save, choosing the account, funding it through uneven income, and filing whatever paperwork the plan requires. Most people stall at step two and never restart.
The payoff for pushing through is substantial. A standard 401(k) participant can defer $24,500 in 2026, while a self-employed person using a Solo 401(k) can direct as much as $72,000 into the same kind of account by combining both contribution types.
There is a second benefit that gets overlooked. Traditional contributions reduce your net self-employment income, which lowers both income tax and, in some plan structures, the base used for other calculations. You are not just saving, you are cutting this year’s bill.
The main self employed retirement plans at a glance
Five vehicles cover almost every situation, and these are the self employed retirement plans worth weighing. Here is how they stack up on the numbers that drive the decision.
| Plan | 2026 limit | Best fit | Admin load |
|---|---|---|---|
| SEP IRA | Up to 25% of compensation, max $72,000 | Solo owner, variable income, no employees | Very low |
| Solo 401(k) | $24,500 deferral plus employer share, max $72,000 | Solo owner wanting maximum savings | Moderate |
| SIMPLE IRA | $17,000 deferral plus employer contribution | Small business with a few employees | Low |
| Traditional or Roth IRA | $7,500 | Anyone, as a supplement | None |
| Defined benefit plan | Actuarially determined, benefit capped at $290,000 | High, stable income near retirement | High |
All figures above come from the IRS cost-of-living adjustments for 2026. Limits change annually, so verify before you fund an account.
SEP IRA
A SEP IRA is the simplest of the self employed retirement plans to open and the easiest to live with. You can set one up in under an hour at most brokerages and there is no annual filing requirement.
The employer contributes up to 25% of compensation, capped at $72,000 for 2026. For a self-employed person the effective rate works out closer to 20% of net earnings after the self-employment tax deduction, so a $100,000 net-earnings year supports roughly $18,600 rather than $25,000.
The flexibility is the real draw. You decide the contribution amount after the year is over, which suits anyone whose income swings.
Where a SEP IRA falls short
There is no catch-up contribution for savers over 50, and traditional SEP contributions are pre-tax only in most plan documents. You also cannot borrow against the balance.
The employee rule is the one that surprises people. If you hire staff who meet the eligibility test, you must contribute the same percentage of compensation for them that you contribute for yourself.
Our deep dive on what a SEP IRA is and how it works covers the eligibility rules and setup steps in detail.
Solo 401(k)
A Solo 401(k), sometimes called an individual or one-participant 401(k), is the highest-capacity of the self employed retirement plans for a business with no employees other than a spouse. It works by letting you wear two hats.
As the employee, you can defer up to $24,500 in 2026. As the employer, you can add a profit-sharing contribution of up to 25% of compensation. Combined annual additions cap at $72,000.
Catch-up contributions are meaningful here. Savers 50 and older can add $8,000, and there is a higher catch-up of $11,250 for ages 60 through 63 under SECURE 2.0.
Why the two-part structure matters
At moderate income the Solo 401(k) beats a SEP IRA outright. On $60,000 of net self-employment earnings, a SEP allows roughly $11,000, while a Solo 401(k) allows the full $24,500 deferral plus an employer contribution on top.
The employee deferral is not tied to a percentage of earnings, which is exactly what a lower-income or early-stage freelancer needs.
The tradeoffs
You must establish the plan and adopt plan documents, and once assets exceed $250,000 at year-end you file Form 5500-EZ annually. Most providers charge nothing to nominal fees, but some third-party administrators charge $100 to $500 a year.
Many providers offer a Roth Solo 401(k) option, which lets you pay tax now for tax-free growth. If you are weighing that choice, our comparison of Roth IRA versus Roth 401(k) for the self-employed lays out both sides.
SIMPLE IRA
Of all the self employed retirement plans, a SIMPLE IRA is the one built for small employers rather than solo operators. If you have a handful of employees and want something cheaper than a full 401(k), this is the middle path.
Employee deferrals cap at $17,000 for 2026, with a $4,000 catch-up at age 50 and older and $5,250 for ages 60 through 63. The employer must either match up to 3% of compensation or make a 2% non-elective contribution for everyone eligible.
That mandatory employer contribution is the catch. In a lean year you still owe it, which makes a SIMPLE IRA less forgiving than a SEP for a volatile business.
For a true solopreneur, the limits are simply lower than what a SEP IRA or Solo 401(k) allows, so it is rarely the right pick.
Traditional and Roth IRAs
Individual retirement accounts are the smallest of the self employed retirement plans by contribution capacity, but they still earn a place in most plans. The 2026 limit is $7,500, plus a $1,100 catch-up at 50 and older.
You can fund an IRA in the same year as a SEP or Solo 401(k). What changes is deductibility, since being covered by a workplace plan phases out the traditional IRA deduction between $81,000 and $91,000 of modified AGI for single filers in 2026, and between $129,000 and $149,000 for joint filers where the contributor is covered.
Roth income limits
Roth IRA eligibility phases out between $153,000 and $168,000 for single and head-of-household filers in 2026, and between $242,000 and $252,000 for married couples filing jointly.
Above those thresholds a Roth IRA is off the table directly, which is one reason the Roth Solo 401(k) is attractive to high earners. It has no income limit.
If you are trying to decide where a marginal dollar goes, our side-by-side on SEP IRA versus Roth IRA works through the tradeoff between a deduction today and tax-free withdrawals later.
Defined benefit plans for high earners
A defined benefit plan is a pension you sponsor for yourself. Instead of a contribution limit, it has a benefit limit, capped at an annual benefit of $290,000 for 2026, and an actuary calculates the contribution needed to fund it.
For a 55-year-old with steady six-figure profit, that calculation can support well over $150,000 a year in deductible contributions. Nothing else comes close.
The cost of entry is real. You need an actuary, annual valuations, and a commitment to fund the plan even in a down year, which typically runs several thousand dollars a year in administration.
This only fits a narrow profile: high income, stable income, later career, and a genuine appetite for large deductions. The Department of Labor overview of plan types is a useful primer before you talk to a specialist.
How to choose among self employed retirement plans
Run your situation against these four profiles and the right choice among the self employed retirement plans usually appears.
- Net earnings under $75,000, solo. A Solo 401(k) almost always wins, because the flat $24,500 employee deferral is not limited by a percentage of your income.
- Net earnings over $150,000, solo. Either plan can reach the $72,000 ceiling. Pick a Solo 401(k) if you want a Roth option or loan access, and a SEP IRA if you want zero paperwork.
- Wildly unpredictable income. A SEP IRA lets you decide the amount after the year closes with no minimum, which is hard to beat for feast-or-famine businesses.
- You have employees. A Solo 401(k) is off the table. Compare a SIMPLE IRA against a standard small business 401(k) with your accountant.
One caution worth repeating: your total annual additions across plans you control are aggregated, so running a SEP and a Solo 401(k) side by side does not double your ceiling.
How to open an account, step by step
Step 1: Calculate your net self-employment earnings
Every one of the self employed retirement plans ties your limit to this figure. Start with gross revenue minus business expenses, then subtract the deductible half of self-employment tax. That final number, not your revenue, drives your contribution limit.
If your books are not current, this step is impossible. Our step-by-step bookkeeping guide covers the minimum system you need.
Step 2: Pick the plan
Use the four profiles above. If you are truly torn between a SEP IRA and a Solo 401(k), the Solo 401(k) gives more optionality for a modest amount of extra paperwork.
Step 3: Open it before the deadline
A SEP IRA can be established and funded as late as your tax filing deadline including extensions. A Solo 401(k) generally must be established by your filing deadline as well, but employee deferrals need to be elected during the plan year, so waiting costs you.
Fidelity, Vanguard, Schwab, and E*TRADE all offer both account types. Setup runs about 15 to 30 minutes online.
Step 4: Automate what you can
Set a recurring monthly transfer from your business account. Targeting $18,000 for the year means $1,500 a month, and automation removes the decision from the equation.
Step 5: True up in the fourth quarter
Review your year-to-date profit in November and adjust. A strong year lets you add a lump-sum employer contribution before the deadline, and a weak one lets you scale back without penalty.
Coordinate this with your estimated tax planning. Our quarterly taxes guide explains how a retirement contribution changes what you owe.
The tax math behind self employed retirement plans
Traditional contributions reduce taxable income dollar for dollar. On $100,000 of net self-employment earnings, an $18,600 SEP contribution drops taxable income to roughly $81,400.
At a 24% federal marginal rate, that contribution is worth about $4,464 in federal tax alone, before any state benefit. You moved money from a tax bill into your own account.
Roth contributions work in reverse. You pay tax now and withdraw tax-free later, which favors anyone who expects a higher bracket in retirement or who wants tax diversification.
Many people I work with split the difference: traditional contributions for the deduction, plus a smaller Roth allocation as a hedge. The IRS retirement plans for self-employed people page is the authoritative reference on how each plan is treated. A CPA can price out the specific comparison for your bracket.
Once your plan is funded, make sure the rest of your money system supports it. Setting a consistent draw is the foundation, and our guide on how to pay yourself as a business owner covers that side.
Frequently asked questions
Which self employed retirement plans allow the highest contributions?
A defined benefit plan allows the most, often well over $150,000 a year for an older high earner, but it requires an actuary and ongoing funding commitments. Among the simpler options, a Solo 401(k) and a SEP IRA both cap at $72,000 for 2026.
Can I contribute to both a SEP IRA and a Solo 401(k)?
You can hold both accounts, but for a single business the total annual additions are aggregated and capped at the same overall limit. In practice, most people pick one plan for a given business rather than splitting contributions.
Can I still fund a Roth IRA if I have a SEP IRA?
Yes. A Roth IRA is a separate account with its own limit of $7,500 for 2026. Your eligibility depends on your modified AGI, which phases out between $153,000 and $168,000 for single filers and between $242,000 and $252,000 for joint filers.
What is the deadline to set up an account?
A SEP IRA can be established and funded up to your tax filing deadline, including extensions. Solo 401(k) rules are tighter for employee deferrals, so establish the plan well before year-end if you want to make them. Confirm the specifics with your provider.
What happens to my Solo 401(k) if I hire an employee?
Once you have an eligible common-law employee, the plan no longer qualifies as a one-participant plan. You would convert it to a standard small business 401(k) or move to a SIMPLE IRA. Existing balances roll over without tax consequences.
How do variable earnings affect my contributions?
Of the self employed retirement plans, a SEP IRA is the most forgiving, since you choose the amount after the year ends with no minimum. A Solo 401(k) is also flexible. A SIMPLE IRA is the least flexible because the employer match or non-elective contribution is mandatory.
Can I borrow from my retirement account?
Many Solo 401(k) plans permit loans of up to 50% of the vested balance, generally capped at $50,000, if the plan document allows it. IRA-based plans including SEP and SIMPLE IRAs do not permit loans.
Do retirement contributions reduce my self-employment tax?
Contributions to a plan for yourself as the owner reduce income tax but do not reduce the self-employment tax on your net earnings. That is a common misconception, and it is worth confirming with a CPA before you plan around it.
