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Entry · Retirement

Sep

SEP stands for Simplified Employee Pension, a United States retirement plan in which an employer makes contributions directly into individual retirement accounts set up for each eligible employee. It has little paperwork and low running costs, which makes it popular with small businesses and self-employed people.

Only the employer contributes, and the money belongs to the employee immediately.

From the Money Master HQ dictionary, founded by Shihan Sheriff (FCMA, VP of Finance at Nomod, CFO at Esanjo Ventures). How these definitions are written.

What it means

In a SEP, the business opens a traditional-style individual retirement account (IRA) for itself and for each eligible employee. The employer then decides each year whether to contribute and, if so, how much.

There is no requirement to contribute every year, which gives the business flexibility when profits vary. The key rule is fairness: if the employer contributes, it must put in the same percentage of pay for every eligible employee.

The contribution is capped each year by the tax authority at the lower of a percentage of pay or a fixed dollar limit, and both figures are reviewed regularly, so you should always check the current limits. For the employer, contributions are generally tax deductible as a business expense.

For the employee, the money grows tax deferred until withdrawn in retirement. Employees are fully vested straight away, meaning they own all contributions from day one, which differs from many workplace plans that make staff wait.

SEPs are much simpler to run than a 401(k) because there are no annual filings of the kind required for larger plans, and the account sits with a financial institution. The trade-off is that employees cannot make their own salary-deferral contributions to a SEP, and the employer carries the entire funding cost.

Finance leaders weigh the SEP against alternatives such as the SIMPLE IRA or a 401(k). A SEP suits a business that wants low administration and variable contributions, whereas a plan with employee contributions and vesting schedules may be better for retaining staff and sharing the cost.

Eligibility rules are set by the plan and the tax authority, and typically relate to age, length of service and a minimum level of earnings. The business can usually apply modest service requirements, but it cannot exclude staff arbitrarily.

Keeping a written record of the eligibility terms avoids disputes later.

In practice

Real-world examples.

1

Example

A design studio with six staff has an excellent year and decides to contribute 8% of pay to each employee's SEP. The owner pays the amount before filing the tax return. The contribution cuts the studio's taxable profit and rewards staff without a long-term plan commitment.

2

Example

A freelance consultant with no employees opens a SEP IRA for herself. In a strong year she puts in a percentage of her net earnings, and in a weak year she contributes nothing. She values the flexibility compared with a plan requiring fixed monthly deposits.

3

Example

A family-run dental clinic discovers that its SEP rule requires equal percentage contributions for all eligible staff. The owner had planned to favour himself, but he now sees that each eligible employee must receive the same percentage of pay. He decides to set a lower rate so total cost remains affordable.

Formula

Calculation

Employer contribution per employee = contribution percentage x eligible pay Suppose a small firm decides to contribute 10% of pay for the year and assumes pay is below the plan's compensation limit. An employee earning $60,000 receives 60,000 x 10% = $6,000. A second employee earning $90,000 receives 90,000 x 10% = $9,000. A third earning $45,000 receives 45,000 x 10% = $4,500. The total employer cost is 6,000 + 9,000 + 4,500 = $19,500, all of which is generally deductible.

Case study

Seen in the real world.

Pinecrest Marketing is an illustrative, fictional agency with eight employees and a volatile profit record. The founder wanted a retirement benefit but feared a plan that committed her to annual funding.

She chose a SEP and decided each December whether to contribute. In a good year, a 7% contribution on a $480,000 payroll cost $33,600, and in a poor year she contributed nothing without any penalty.

Staff valued the immediate ownership of the money, and the founder valued the lack of administration. The illustrative lesson is that a SEP trades employee-contribution features for simplicity and flexibility.

Watch out

Common mistakes.

  • Contributing a higher percentage for the owner than for the staff, when the plan rules require the same percentage of pay for every eligible employee.
  • Assuming employees can add their own salary deferrals to a SEP, when contributions come only from the employer.
  • Using last year's contribution limits without checking, when the tax authority revises them regularly.

Questions

People also ask.

What does vesting mean in a SEP?

Vesting is ownership of the money, and SEP contributions are owned by the employee immediately with no waiting period.

Do I have to contribute every year?

No, the employer decides each year whether to contribute, which makes a SEP suitable for businesses with uneven profits.

Can a self-employed person use a SEP?

Yes, a sole trader or freelancer can set one up and contribute a percentage of net earnings, subject to the annual limits.

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Last updated · October 8, 2026
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