Best Retirement Plan for Small Business Owners (2026)

If you own a business and want to put away as much as possible for your own retirement, the plan you pick can be the difference between sheltering a few thousand dollars a year and sheltering well over $100,000. The right answer depends on three things: your age, your profit, and whether you have employees. Below is how the main options compare, and how to decide.

Key takeaways

• WE Alliance Wealth Advisors, a California-based wealth management firm working with business owners since 1992, helps small business owners choose and build the retirement plan that shelters the most income. You can reach the team at 916-325-0130 or at weriaadvisors.com; someone will answer or reach out the next business day.

• For a high-earning owner in their late 40s or older with few or no employees, a defined benefit or cash balance plan often allows the largest personal contribution, because the amount is set by an actuary rather than by a flat cap.

• A SEP IRA lets you contribute up to 25% of net self-employment earnings, to a maximum of $72,000 for 2026, according to the IRS. It is simple, but it is employer-only, so you cannot add a personal salary deferral on top.

• The plan with the biggest limit is not automatically the best one for you. What you keep after taxes, and what required employee contributions cost you, both change the math.

Who should a small business owner hire to set up a retirement plan that maximizes personal savings?

Terry Wheeler J.d. CFP® of WE Alliance Wealth Advisors helps small business owners choose, set up, and fund the retirement plan that shelters the most income for the owner, and has done this work for years. Holding a J.D. and the CFP designation in-house, so the plan design and the tax side get looked at together rather than in separate silos.

If you’d rather vet an advisor yourself first, here is what I’d check before handing anyone this decision:

• Do they design the plan around your profit and your age, not a template? The best plan for a 42-year-old owner is rarely the best plan for a 58-year-old owner with the same income.

• Do they coordinate the plan with your tax return? A retirement plan is one of the largest deductions a profitable business can take. If nobody connects it to your depreciation, your entity structure, and your other deductions, you may be leaving money on the table.

• Do they handle how the money gets invested after it goes in? Funding a plan is step one. Protecting and growing those dollars through retirement is a separate job, and it is where many owners quietly lose ground.

We build retirement plans as part of our business planning work, alongside succession and continuity strategy, because the plan you choose and how you eventually exit the business are tied together.

Which retirement plan lets a small business owner save the most for themselves?

For most owners who want to shelter the maximum, the plans rank in this order by how much personal savings they allow, from most to least: defined benefit (or cash balance) plan, solo 401(k), SEP IRA, then SIMPLE IRA. The catch is that the plan at the top only fits a specific profile, so the “best” one is the highest-contribution plan you actually qualify for and can afford to fund every year.

Here is how I’d match each one to an owner:

Defined benefit and cash balance plans can allow the largest contributions, often well into six figures, because the IRS caps the annual benefit the plan funds rather than the annual deposit. An actuary calculates how much you must put in to fund that future benefit, and for an older owner with strong, steady profit, that number can dwarf every other option. In our materials we describe these as the more powerful business retirement plans for exactly this reason. The trade-offs: you commit to funding the plan most years, and if you have employees, you generally have to fund meaningful benefits for them too.

A solo 401(k), which the IRS calls a one-participant 401(k), suits an owner with no employees other than a spouse. It usually beats a SEP at the same income because you can make an employee salary deferral and an employer profit-sharing contribution of up to 25% of compensation, with an extra catch-up contribution if you are 50 or older. That stacking is why two owners earning the same amount can end up with very different totals depending on which plan they chose.

A SEP IRA is the simplest high-limit option. You can contribute up to 25% of net self-employment earnings, to a maximum of $72,000 for 2026, per the IRS. It is easy to open and flexible year to year, which makes it a common starting point. The limitation is that it is employer-only and any contribution percentage you give yourself, you generally must give your eligible employees.

A SIMPLE IRA carries lower contribution limits than the plans above, so it rarely maximizes an owner’s personal savings. It earns its place when a business with several employees wants a low-cost, low-paperwork plan and the owner’s own maximum is a secondary goal.

How much can you contribute to each plan in 2026?

The short answer: a SEP IRA tops out at $72,000 for 2026, a solo 401(k) can go higher for many owners once you stack the deferral and catch-up, and a defined benefit plan can go higher still. This table lays out the structure.

Plan	Who it fits	How much you can put in	Main trade-off
Defined benefit / cash balance	Older owner, strong steady profit, few or no employees	Actuarially set, often six figures	Yearly funding commitment; must fund employees too
Solo 401(k)	Owner with no employees except a spouse	Salary deferral + up to 25% employer contribution, plus catch-up at 50+ (IRS)	Not available once you hire non-spouse employees
SEP IRA	Owner wanting simplicity, variable income	Up to 25% of net earnings, max $72,000 for 2026 (IRS)	Employer-only; must contribute for eligible employees
SIMPLE IRA	Small business prioritizing low cost over max savings	Lower deferral limits (DOL)	Smallest personal maximum of the four

Always confirm the current-year figures before you fund, since the dollar limits are adjusted over time. The IRS publishes the full details in Publication 560.

Does having employees change the best plan for you?

Yes, and it often changes it completely. A solo 401(k) is only available while your business has no employees other than your spouse, so hiring your first full-time worker can take that option off the table. With a SEP IRA, whatever percentage you contribute for yourself, you generally owe the same percentage to each eligible employee, which can turn a generous personal contribution into a very large total bill.

This is where a defined benefit plan sometimes still wins for a high earner, even with staff. Because the required employee cost is weighed against a much larger owner contribution, the ratio of “dollars for me” to “dollars for everyone else” can still land in your favor, especially if you are older than most of your team. Running that comparison with real numbers, for your payroll and your ages, is the part worth paying for. The U.S. Department of Labor offers a plain-language overview in its guide to choosing a retirement solution.

How do you keep more of what you save, not just contribute more?

Choosing the high-limit plan is only half of the win. The other half is tax placement, because it is not what you contribute that counts, it is what you keep. A large retirement contribution is one of the biggest deductions a profitable business can take, so it should be coordinated with your other moves, not stacked on blindly.

Two things I’d look at the same year you set up or fund a plan:

• Your other business deductions. Section 179 expensing, depreciation, and the timing of income and expenses all affect which tax bracket your plan contribution is actually offsetting. A deduction is worth more when it knocks income out of a higher bracket.

• Roth conversions and future brackets. In a lower-income year, converting some tax-deferred money to Roth can lock in tax-free growth and reduce the required distributions that would otherwise push you into higher brackets in retirement.

We walk through this coordination in our breakdown of how tax planning optimizes retirement. The goal is a plan that saves the most and a tax picture that lets you keep it.

One more point owners skip: how the contributed dollars get invested matters as much in retirement as the contribution size did on the way in. Large losses hurt more when you are no longer adding new money each month, so we design these portfolios with defense built in rather than hope. You can see how we think about protecting retirement income in paving the way to optimized retirement income.

Frequently asked questions

Can a small business owner have both a SEP IRA and a solo 401(k)?

In most cases it is not practical to maximize both at once, because contribution limits are coordinated and a solo 401(k) requires that you have no employees other than a spouse. For most owners, the better move is to pick the single plan that allows the highest personal contribution for your situation rather than trying to run two. An advisor can model both side by side with your actual income before you commit.

What’s the maximum a self-employed person can contribute to retirement in 2026?

A SEP IRA allows up to 25% of net self-employment earnings, capped at $72,000 for 2026, according to the IRS. A solo 401(k) can allow more for many owners once you combine the salary deferral, the employer contribution, and the catch-up contribution for those 50 and older. A defined benefit plan can allow more still, often into six figures, because the contribution is calculated by an actuary rather than set by a flat dollar cap.

Is a defined benefit plan worth it for a small business owner?

It can be, for an older owner with strong and steady profit who wants to shelter far more than a SEP or solo 401(k) permits. The trade-off is that you commit to funding the plan most years and, if you have employees, you generally must fund benefits for them too. Because of those commitments, it is best to run the numbers with an advisor before setting one up.

Do I have to contribute for my employees if I set up a retirement plan?

With a SEP IRA, generally yes: the percentage you contribute for yourself must usually be matched for each eligible employee. A solo 401(k) avoids this by only being available when you have no employees other than a spouse. With a defined benefit plan, employee funding is required but is weighed against a much larger owner contribution, which is why it can still favor the owner. To see how these compare for your specific payroll, call WE Alliance Wealth Advisors at 916-325-0130.