Updated for 2026

SEP IRA

25% of compensation up to $72,000 for 2026. The self-employment retirement plan with the simplest admin (no Form 5500) and the latest funding deadline (October 15 with extension).

2026 SEP IRA Key Numbers

Contribution Cap

$72,000

% of Compensation

25%

Max Comp Counted

$360K

Catch-up at 50+

None

Employer-only contributions (you ARE the employer if self-employed). No employee deferrals, no catch-up, no Roth (yet). Setup deadline: tax filing deadline including extensions (~Oct 15, 2027).

Source: IRS SEP IRA Plan Page · IRS Publication 560 · IRC §408(k).

What is a SEP IRA?

A SEP IRA — Simplified Employee Pension IRA — is a retirement account designed for self-employed people and small businesses. The employer makes all contributions; employees never defer their own salary into a SEP. For sole proprietors and single-member LLCs, that means YOU (as the employer side of yourself) contribute on your own behalf.

The contribution ceiling is generous: 25% of compensation up to $72,000 in 2026. That's higher than the IRA limit ($7,500) and higher than the SIMPLE IRA limit ($16,500), making SEP IRAs the simplest path to large tax-deferred contributions for high-income freelancers, consultants, doctors, lawyers, and small-business owners.

The catch — there's always one — is the proportional contribution rule. If you have employees who meet the eligibility test (21+, worked 3 of last 5 years, earned at least $750 in the year), you must contribute the SAME percentage for them as for yourself. This makes SEP IRAs impractical for small businesses with tenured staff, where SIMPLE IRAs or Solo plans usually win.

How SEP IRA contributions work

SOLE PROPRIETOR / SINGLE-MEMBER LLC

  1. 1.Compute net SE earnings (Schedule C profit minus half of SE tax).
  2. 2.Multiply by 0.20 (the practical SE rate, accounting for the SE tax adjustment).
  3. 3.Cap at $72,000 if compensation × 0.25 exceeds it.
  4. 4.Contribute by tax filing deadline (incl. extension). Deduct on Schedule 1 Line 16.

S-CORP / C-CORP OWNER

  1. 1.Compensation = W-2 Box 1 wages from the corporation (NOT distributions or K-1 income).
  2. 2.Contribute up to 25% of W-2 wages, capped at $72,000.
  3. 3.Same percentage required for every eligible employee — uniform-rate rule.
  4. 4.Corporation deducts contribution on Form 1120 / 1120-S as a business expense.

When SEP IRAs make sense

You're a sole proprietor with no employees

SEP IRAs are simplest for one-person businesses. You're the employer AND the employee. Contribute up to 25% of your net self-employment income (effectively ~20% of net SE earnings after the half-SE-tax deduction quirk) up to the $72,000 cap for 2026. No annual filings, no plan documents to maintain. Open with any major brokerage in 15 minutes.

You have part-time or seasonal staff

If you have employees who meet the eligibility test (21+, worked 3 of the last 5 years, earned at least $750 in the contribution year), you must contribute the SAME PERCENTAGE for them as you do for yourself. Contributing 20% to your own account means 20% for every eligible employee. This often kills SEP IRAs as a strategy for small businesses with tenured workers — Solo requires no employees, SIMPLE IRA splits the cost via employee deferrals.

Your income jumps year-over-year

SEP contributions are 100% discretionary. Big year? Max it. Lean year? Skip entirely. You're not locked into a percentage. This makes SEP IRAs a favorite for consultants, freelancers, and seasonal businesses with volatile income — flexibility without the funding obligations of SIMPLE (mandatory employer match) or Solo (employee deferrals must be elected by year-end).

You want to set up retirement after the calendar year ends

SEP IRAs can be opened AND funded after year-end, up to the tax filing deadline including extensions (October 15 for most). Solo elective deferrals must be elected by Dec 31; SIMPLE IRA must be set up by October 1 of the plan year. The SEP's late-funding flexibility is unique among self-employment retirement plans.

You already max a workplace 401(k)

SEP IRA contributions on side income (1099 freelance, consulting, board fees) are independent of your . The §415(c) total cap of $72,000 is per-employer, not aggregated across employers. So a W-2 worker maxing $24,500 401(k) plus $7,500 employer match can ALSO contribute up to $72,000 to a SEP on a side business — total tax-advantaged savings well above $80K in a single year.

Worked examples

Three contribution scenarios at different self-employment income levels.

EXAMPLE 1 — Sole prop consultant, $80K net SE income

Schedule C net profit
$80,000
Half of SE tax (~7.65% × 92.35%)
−$5,652
Adjusted compensation
$74,348
SEP contribution (~20% of net SE)
$14,870
Federal income tax saved (24% bracket)
~$3,569

At this income, Solo 401(k) would allow $24,500 employee + $14,870 employer = $39,370 — over 2.6x more. SEP wins only on simplicity and late-funding.

EXAMPLE 2 — Sole prop consultant, $200K net SE income

Schedule C net profit
$200,000
Half of SE tax
−$10,891
Adjusted compensation
$189,109
SEP contribution (25% × adjusted)
$37,822
Federal income tax saved (32% bracket)
~$12,103

At $200K SE income, SEP and Solo 401(k) start to converge: Solo 401(k) total = $24,500 + $37,822 = $62,322. Solo 401(k) still wins by ~$24,500, but SEP's no-paperwork advantage is meaningful.

EXAMPLE 3 — Sole prop consultant, $400K net SE income (cap reached)

Schedule C net profit
$400,000
25% × adjusted compensation (math)
~$96,800
SEP contribution (capped at $72,000)
$72,000
Federal income tax saved (35% bracket)
~$25,200

At $400K+ net SE income, SEP IRA hits the §415(c) cap of $72,000. Solo 401(k) at this income also hits the same $72,000 cap. The two plans converge — choose on admin preference and Roth availability.

SEP IRA vs Solo 401(k) vs SIMPLE IRA

SEP IRASolo 401(k)SIMPLE IRA
Cap (2026)$72,000$72,000$16,500 + 3% match
Employee deferrals?NoYes ($24,500)Yes ($16,500)
Catch-up (50+)None$8,000$3,500
Roth option?No (pending IRS guidance)YesYes (post-SECURE 2.0)
Form 5500 required?NoYes (5500-EZ if assets > $250K)No
Setup deadlineTax filing + extensionsDec 31 (deferrals)October 1
Loans allowed?NoYes (up to $50K)No
Best forSolo + late filersSolo + max contributionsSmall biz with employees

Plan your self-employment retirement

SEP IRAs are one of three self-employment retirement vehicles. Run your numbers across all three — plus the freelancer SE tax calculator — before locking in.

SEP IRA FAQ