SEP IRA Self-Employed

A SEP IRA (Simplified Employee Pension) is a retirement savings vehicle designed for self-employed individuals and small business owners, permitting tax-deductible contributions of up to 25% of net self-employment income (capped at $70,000 annually in 2024), making it a flexible and high-contribution alternative to traditional IRAs.

Why SEP IRAs work for self-employed workers

Self-employed workers lack access to employer 401(k) plans. A freelancer earning $100,000 in net SE income can contribute only $7,000 to a regular traditional IRA (2024 limit). A SEP IRA allows that same freelancer to contribute roughly $20,000 (25% of $100,000, after adjustment for SE tax), deferring far more income from federal and state taxation.

This dramatic difference reflects a policy choice: tax law tries to equalize retirement savings opportunities between employees (who get employer matches and 401k plans) and self-employed workers. The SEP IRA does this by allowing very high contribution rates.

The mechanics are simple: a self-employed person completes a one-page SEP-IRA form at a brokerage or bank, opens an account, and contributes up to the annual limit. No complex documentation, no annual filings, no administrative hassle—hence “simplified” pension. This low-friction setup makes SEP IRAs popular with:

• Freelancers and consultants with variable annual income
• Sole proprietors without employees
• Side-gig earners (writers, developers, creators) not yet full-time self-employed
• Business owners wanting to shelter profits from tax before deciding on reinvestment or distribution

Calculating the contribution limit

The contribution limit for a self-employed person is 25% of net self-employment income after a self-employment tax adjustment. This adjustment matters:

Self-employment income is subject to a 15.3% self-employment tax (Social Security + Medicare). A freelancer earning $100,000 in gross revenue owes roughly $15,300 in SE tax. Net SE income for retirement purposes is reduced by half the SE tax: $100,000 − $7,650 = $92,350.

The SEP contribution limit is then 20% of this adjusted figure (because 25% ÷ 1.25 = 20% after the adjustment): 20% × $92,350 = $18,470.

The IRS provides a worksheet to compute this correctly. For most self-employed people earning under $200,000, the shorthand is approximately 18–20% of net SE income, well below the literal 25% cap on business entities with employees.

SEP IRA vs. Solo 401(k)

A competing vehicle, the Solo 401(k), also serves solo self-employed workers. How do they compare?

For solo operators, the Solo 401(k) actually allows higher contributions because it permits both employee deferrals AND employer contributions. However, the paperwork and potential annual filing requirement (Form 5500) if balances exceed $250,000 adds complexity.

Strategy: If contributions <$50,000 annually and simplicity is key, use a SEP IRA. If contributions exceed $50,000 or loan access is valuable, explore a Solo 401(k).

Tax treatment and deductibility

Contributions to a SEP IRA are fully tax-deductible as business expenses. A self-employed therapist earning $120,000 contributes $20,000 to a SEP IRA; taxable income drops to $100,000. Federal taxes are calculated on $100,000, not $120,000—a meaningful savings at marginal tax rates of 24–32%.

At withdrawal (age 59.5 or later), distributions are taxed as ordinary income. There is no special capital gains treatment; all withdrawn funds are taxed at ordinary rates.

Roth conversion strategies also apply: a self-employed person can fund a traditional SEP and later convert funds to a Roth SEP IRA, paying taxes on the conversion but getting tax-free growth thereafter. This is useful in low-income years (e.g., starting a new business) when conversion tax is minimal.

Contribution deadlines and employer considerations

The SEP contribution deadline is the individual’s tax filing deadline, including extensions. A self-employed person with a December 31 year-end can contribute until October 15 (April 15 + six-month extension) of the following year. This flexibility allows businesses to wait and see year-end profits before committing to retirement contributions.

If the business has employees: This is critical. A business owner is legally required to contribute to SEP IRAs for all eligible employees at the same percentage rate as the owner. If the owner contributes 20% of SE income (say, $30,000 for a $150,000 income), and the business has a $60,000/year employee, the owner must also contribute $12,000 (20% of $60,000) to that employee’s SEP IRA.

This requirement makes SEP IRAs impractical for businesses with employees, pushing owners toward Solo 401(k) or 401(k) plans where employer contributions can be discretionary or formulaic.

Investment and withdrawal rules

A SEP IRA is invested like a traditional IRA: self-directed at a broker/bank, permitting stocks, bonds, funds, REITs, CDs, and options (subject to brokerage rules). The account holder has control, unlike some business plans where an employer designates investment options.

Withdrawals follow traditional IRA rules:

• Before age 59.5: 10% penalty + ordinary income tax (with narrow exceptions for disability, education, first-time home purchase under Roth rules, etc.).
• At 73 and older: Required minimum distributions based on life expectancy tables must be taken annually.
• Rollovers: SEP funds can be rolled into other IRAs or 401(k) plans without tax.

No special tax-deferred exchanges (like 1031 exchanges for real estate) apply; the account is purely retirement-savings sheltered.

When SEP IRAs make sense

SEP IRAs are optimal for:

Solo service providers (therapists, consultants, freelance writers, accountants) with no employees and variable income, who want maximum contribution room without paperwork.

Multiple business owners who each operate independent ventures and want to contribute to separate SEP IRAs at different rates.

Very high earners seeking to shelter $70,000+ annually from taxation and don’t want the Solo 401(k) compliance burden.

They are not ideal for:

• Businesses with employees (triggers mandatory matching obligations)
• Owners wanting plan loans (SEP IRAs don’t allow them)
• Those seeking after-tax contributions for larger pools of capital