Self-Employment Tax Rate (2026): 15.3% Explained

Updated May 7, 2026 · 7 min read

Self-employment tax rate is 15.3% in 2026: 12.4% Social Security + 2.9% Medicare. The Social Security portion caps at the $184,500 wage base; the Medicare portion is uncapped. High earners pay an extra 0.9% Additional Medicare on income above $200,000 single / $250,000 MFJ. This guide breaks down what the rate actually means, how to compute it, and how to legally reduce it.

The 15.3% breakdown

The 0.9235 SE factor

Self-employed taxpayers don't pay SE tax on 100% of their net SE income — they pay it on 92.35%. The 7.65% exclusion mirrors the FICA employer match a W-2 employer would pay on a wage. Per IRC §1402(a)(12), the math is:

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SE tax = (net SE × 0.9235) × 15.3%

Concrete example: $50,000 net SE income, single

SE tax vs FICA — same rate, different label

A W-2 employee pays 7.65% FICA from their paycheck (6.2% SS + 1.45% Medicare); the employer pays a matching 7.65% on the employee's behalf. Combined: 15.3% — identical to SE tax.

The IRS treats self-employed taxpayers as both employer and employee, so you pay both halves. The 0.9235 SE factor is the only adjustment: it excludes the "employer match" amount from the SE base (because as an employer, you don't include your own match in your own taxable wage).

The half-SE deduction

You can deduct 50% of your SE tax as an above-the-line adjustment to AGI on Form 1040 Line 15. This reduces:

It does NOT reduce the SE tax itself — you still owe the full 15.3% on net SE income. The deduction shifts other taxes only.

2026 boundary cases

Three legal ways to reduce SE tax

1. Maximize business deductions (the biggest lever)

SE tax applies to NET SE income — gross minus business expenses. Every legitimate deduction reduces both federal income tax AND SE tax. For each $1,000 of deductions, you save:

Combined savings: typically 25-50% of the deduction. Freelancer deductions checklist.

2. Elect S-corp status (the next-biggest lever, at higher income)

S-corp shareholders only pay payroll tax on the "reasonable salary" portion of their profit; the rest is distributions and escapes the 15.3%. Example with $150,000 profit:

Trade-offs: extra accounting cost ($1-2k/yr), separate corp tax return (Form 1120-S), reasonable-salary IRS scrutiny. Generally worth it above $80-100k profit. Full S-corp guide.

3. Above-the-line retirement deductions

Solo 401(k) and SEP-IRA contributions reduce AGI but DON'T reduce SE tax (because the SE-tax base is computed before AGI adjustments). Net effect: federal + state income tax savings, but the 15.3% SE tax still applies to the full pre-retirement net SE income.

Exception: a SEP-IRA contribution at the individual level (not through the corp) reduces SS coverage — not directly SE tax — but matters for high earners maxing the SS wage base.

What SE tax doesn't apply to

SE tax vs payroll tax — quick comparison table

Aspect SE tax (sole prop / Schedule C) Payroll tax (S-corp salary / W-2)
Combined rate15.3% on 92.35% of net SE15.3% on 100% of wage
Effective rate on raw $14.13% (15.3% × 0.9235)15.3%
SS wage base 2026$184,500$184,500
Half-of-tax deductionYes (above the line)No
Distributions exempt?Doesn't applyYes — only salary subject
Form filedSchedule SE (with Form 1040)Form 941 quarterly + W-2 annual

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Estimates only — not tax, legal, or financial advice. Sources: IRC §1401, §1402(a)(12), §1402(b), IRS Schedule SE instructions (TY 2026), IRS Notice 2025-67 (TY 2026 wage base $184,500), IRS Publication 334 (Tax Guide for Small Business). For decisions affecting your finances, consult a licensed CPA or enrolled agent.