If You Have Employees, Does a SEP IRA Require Contributing for Them Too?
A SEP IRA is often described as an easy way for a business owner to save for retirement — but that simplicity comes with a condition that surprises some owners once they have even one employee on payroll.
The short answer
Yes, generally. If a business has eligible employees and the owner contributes to their own SEP IRA, the business is typically required to make a proportional contribution for every eligible employee, calculated using the same percentage of compensation used for the owner. A SEP IRA can’t be structured to benefit only the owner while excluding otherwise-eligible staff — the uniform-percentage requirement is central to how the plan works.
What “eligible employee” generally means
Plans typically define eligibility using a small set of standard factors, such as a minimum age, a minimum number of years working for the business, and a minimum amount of compensation earned. Employees who meet these thresholds usually can’t be excluded from receiving a SEP contribution in a year the owner contributes for themselves, even if the employee has only been with the business a relatively short time relative to the owner’s tenure. Because eligibility rules are set by the government and can shift over time, checking current thresholds before assuming who is or isn’t eligible is worth doing.
Why the uniform-percentage rule exists
The structure is meant to prevent a plan from being used purely as a way to benefit an owner while giving nothing to the people working alongside them. If the owner contributes an amount equal to a given percentage of their own compensation, the business must generally apply that same percentage to every eligible employee’s compensation as well.
- Same percentage, different dollar amounts. A higher-paid owner and a lower-paid employee receive contributions at the same percentage rate, so the dollar amounts naturally differ based on pay.
- No picking and choosing. An employer can’t apply the percentage to some eligible employees and skip others; the rule applies uniformly across everyone who qualifies.
- Contribution is optional, but only as a whole. The employer can choose not to contribute at all in a given year, but can’t contribute for the owner alone while skipping eligible staff.
What this means for a growing business
This requirement is one of the bigger practical factors business owners weigh when deciding between a SEP IRA and a SIMPLE IRA or other small-business retirement plans, since the cost of contributing for employees scales directly with headcount and payroll. This is separate from — but sometimes considered alongside — how self-employment tax works for the owner personally, since both affect overall take-home planning. A business with just the owner and no other staff faces none of this complexity, but the calculation changes as soon as employees who meet the eligibility criteria are added to payroll.
What to weigh before adopting a SEP
Because a SEP IRA’s simplicity is part of its appeal, it’s worth thinking through what a given contribution percentage would cost across the whole eligible staff, not just for the owner, before committing to the plan. This is also connected to timing questions, such as when a SEP IRA can be set up and funded relative to the tax year, since the eligibility and contribution calculation both depend on the specific year in question.
The practical implication
A SEP IRA’s employer-only, flexible-contribution structure is genuinely simple to administer, but it isn’t a way to reward only an owner while employees get nothing — the uniform-percentage rule is a core feature of the plan, not a minor detail, and it’s worth factoring in fully before choosing this type of account for a business with staff.