Glossary term

Simplified Employee Pension (SEP) IRA

A SEP IRA is a retirement arrangement that lets an employer contribute to traditional IRA accounts for eligible employees, including the business owner.

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Written by: Editorial Team

Updated

April 21, 2026

What Is a SEP IRA?

A SEP IRA is an employer retirement arrangement that lets a business contribute to traditional IRA accounts for eligible employees, including the owner when the owner qualifies under the plan rules. SEP stands for Simplified Employee Pension. The plan is common among self-employed people and small-business owners because it uses IRA accounts while keeping the employer-plan structure relatively simple.

That combination is the key to understanding a SEP IRA. It is not just a personal IRA with a different name. It is a workplace retirement plan built on IRA accounts, and the employer controls the contribution decision.

Key Takeaways

  • A SEP IRA is an employer-funded retirement plan that uses IRA accounts.
  • Employer contributions, not employee salary deferrals, are the core funding method.
  • The plan is often used by self-employed people and small businesses.
  • A SEP IRA follows many IRA investment and distribution rules, but the contribution decision happens at the employer-plan level.
  • It is often compared with a SIMPLE IRA or other small-business retirement plans.

How a SEP IRA Works

The employer establishes the SEP arrangement and makes contributions for eligible participants. Those contributions go into SEP-IRA accounts, which are IRA accounts held for each participant. Because the plan uses IRA accounts, the investment and distribution mechanics look familiar, but the contribution structure is still driven by employer-plan rules.

If you need the current year's SEP IRA contribution figures, see the current financial planning tax reference guide.

That is the main difference from a personal IRA. A person does not simply decide to make a normal IRA contribution and call it a SEP. The employer has to adopt the arrangement and follow the coverage and contribution rules that come with it. That employer-driven structure is what gives the plan its small-business utility.

Why SEP IRAs Appeal to Self-Employed Owners and Small Firms

A SEP IRA is often attractive when a business owner wants an employer-funded retirement plan without taking on the complexity of a larger workplace plan. It can also appeal to self-employed people whose income varies and who want flexibility in deciding how much the business contributes from year to year.

That flexibility is one reason SEP IRAs remain a common option in owner-only businesses and small firms, especially when the goal is to make employer contributions rather than employee salary deferrals. The plan can give a small business a meaningful retirement structure without requiring the same type of worker-deferral system found in a 401(k) or SIMPLE IRA.

SEP IRA Versus SIMPLE IRA

A SEP IRA and a SIMPLE IRA are both small-business retirement options, but they solve different problems. A SEP IRA usually centers on employer contributions only. A SIMPLE IRA combines employee salary deferrals with required employer matching or nonelective contributions.

Plan

Main Contribution Driver

Best Fit

SEP IRA

Employer contributions only

Businesses wanting employer-controlled funding flexibility

SIMPLE IRA

Employee deferrals plus employer contributions

Businesses wanting payroll-based employee participation

That means a SEP IRA may fit a business that wants employer-controlled funding, while a SIMPLE IRA may fit a business that wants employees participating through payroll deferrals.

SEP IRA Versus a Personal IRA

A SEP IRA is also different from a personal IRA. The underlying account may look like a Traditional IRA, but the reason money gets into the account is different. With a SEP, the contribution comes through the employer-plan framework rather than through a normal personal contribution decision.

This matters because the planning question is often business-based, not just individual. The owner is deciding how to use a small-business retirement plan, not simply choosing another personal savings account.

SEP IRA Versus Starter 401(k)

Small employers may also compare a SEP IRA with a Starter 401(k). The SEP leans toward employer-funded flexibility. The Starter 401(k) leans toward employee salary deferrals inside a simpler 401(k)-style structure. Both reduce complexity compared with larger retirement-plan designs, but they approach the problem from different sides.

This comparison is useful because many employers are not choosing only between SEP and SIMPLE. They are choosing from a small-employer plan menu, and the real issue is whether the business wants employer-controlled contributions, employee deferrals, or both.

Example Self-Employed Owner Using Employer-Funded Flexibility

Suppose a self-employed owner wants to put business-funded retirement money aside in strong years but wants flexibility in how much to contribute from one year to the next. A SEP IRA may fit well because it keeps the plan employer-funded and relatively straightforward while still using familiar IRA mechanics at the account level.

This example shows why the SEP remains a durable small-business option. It gives the owner a workplace retirement structure without forcing the plan into a heavier employee-deferral design.

The Bottom Line

A SEP IRA is an employer-funded retirement plan built on IRA accounts. It is especially useful for self-employed people and small businesses that want a simpler workplace retirement structure, but it still needs to be evaluated as an employer plan rather than as an ordinary personal IRA.