Retirement Plan Options for Business Owners in 2026

For business owners and self-employed individuals, a retirement plan can offer a strong combination of current tax deductions and long-term retirement savings.

The right plan depends on your income, business structure, employees, desired contribution level, and administrative complexity. Here are four common options to consider for 2026.

Solo 401(k)

A Solo 401(k) can be an excellent option for a business owner with no employees other than a spouse.

For 2026, the employee elective-deferral limit is $24,500. Participants age 50 or older may generally make an additional $8,000 catch-up contribution, while participants who are ages 60 through 63 during 2026 may qualify for a higher $11,250 catch-up contribution.

The business may also make employer contributions, with total annual contributions generally limited to $72,000 before catch-up contributions, subject to compensation and other requirements.

Because the owner can contribute in both an employee and employer capacity, a Solo 401(k) can often allow larger contributions than a SEP IRA at the same income level.

It also offers more plan-design flexibility, but requires more administration.

SEP IRA

A SEP IRA is one of the simplest retirement plans for self-employed individuals and small-business owners.

For 2026, employer contributions may generally be made up to 25% of eligible employee compensation, subject to a maximum contribution of $72,000. Self-employed individuals use a special calculation to determine the maximum contribution based on adjusted net earnings from self-employment.

SEP IRAs do not allow employee salary deferrals or catch-up contributions. However, they are relatively easy to establish and administer, and contributions can generally be made through the business's tax-return due date, including extensions.

One important consideration is that eligible employees generally must receive contributions based on the same contribution formula as the owner.

SIMPLE IRA

A SIMPLE IRA may be appropriate for a small business that wants to offer employees a retirement plan without the administrative complexity of a traditional 401(k).

For 2026, employees may generally defer up to $17,000. The general catch-up contribution limit for eligible participants age 50 or older is $4,000, while participants ages 60 through 63 may qualify for a higher $5,250 catch-up contribution.

Certain SIMPLE plans may qualify for a higher $18,100 employee deferral limit under provisions enacted by SECURE 2.0. Because the applicable contribution and catch-up limits can depend on the employer's size and plan provisions, business owners should confirm which limits apply to their particular plan.

Employers are also generally required to make either a matching contribution or a nonelective contribution for eligible employees.

A SIMPLE IRA can be easier and less expensive to administer than a traditional 401(k), but its contribution limits are generally lower, and employers generally cannot maintain another retirement plan at the same time.

Cash Balance or Defined Benefit Plan

For highly profitable businesses, a cash balance or other defined benefit plan may allow substantially larger deductible contributions than a defined contribution plan alone.

These plans can be especially attractive for older business owners with consistently high income who want to accelerate retirement savings.

Unlike a SEP IRA or Solo 401(k), the contribution amount is generally determined through actuarial calculations based on factors such as the participant's age, compensation, retirement assumptions, and plan design.

Cash balance and defined benefit plans involve greater cost, complexity, and ongoing funding commitments. They are generally best evaluated as part of a multi-year retirement and tax strategy.

In some circumstances, a cash balance plan may also be paired with a 401(k) or profit-sharing plan to provide additional retirement-planning opportunities.

Plan Deadlines Matter

Retirement-plan deadlines vary significantly by plan type and business structure.

For example, a SEP can generally be established and funded through the tax-return deadline, including extensions. A new SIMPLE IRA generally must be established within the applicable plan-establishment period.

Special rules also allow certain sole proprietors with no employees to establish a new Solo 401(k) after year-end for the first year of the plan. In qualifying circumstances, the individual may make first-year elective deferrals by the tax-return filing deadline, determined without regard to extensions.

For that reason, it is best to review retirement-plan options before year-end rather than assuming you can create a plan later.

Retirement Plans and Tax Planning

Retirement-plan decisions should not be evaluated based solely on the maximum available contribution.

For business owners, retirement contributions can interact with other areas of the tax return, including:

• The Section 199A Qualified Business Income deduction

• S corporation compensation

• Payroll and self-employment taxes

• State income taxes

• Estimated tax requirements

• Business cash flow

• Other retirement and investment planning

For example, a deductible retirement contribution can reduce taxable income, but it may also affect other deductions and income-based limitations.

Similarly, an S corporation owner's compensation can affect both retirement-plan contribution opportunities and other areas of the tax calculation.

The objective should be to evaluate the retirement plan as part of the owner's overall business and individual tax strategy, rather than maximizing one deduction in isolation.

Final Thoughts

The best retirement plan is not necessarily the one with the highest contribution limit.

Consider employee costs, cash flow, administrative requirements, future profitability, tax consequences, and long-term retirement goals alongside the immediate tax deduction.

For many business owners, comparing multiple plan designs before year-end can identify a strategy that provides both meaningful tax savings and greater retirement flexibility.

Which Retirement Plan Fits Your Business?

If you're evaluating a Solo 401(k), SEP IRA, SIMPLE IRA, or a higher-contribution retirement plan, proactive tax planning can help determine how each option fits into your broader tax strategy.

Weissgarber CPA works with business owners to coordinate retirement-plan decisions with their business and individual tax planning.

This article is for general informational purposes only and does not constitute tax, legal, or investment advice. Tax outcomes depend on individual circumstances and applicable law.