Self-Employment Tax Rates 2026

SE Tax Rate Breakdown

2026 Federal Income Tax Brackets

2026 Quarterly Tax Due Dates

QBI Deduction (Section 199A)

The Qualified Business Income deduction allows self-employed individuals to deduct up to 20% of qualified business income from taxable income. For 2026, the deduction is limited to the greater of 50% of W-2 wages paid or 25% of W-2 wages plus 2.5% of unadjusted basis of property. Income limits for 2026: $243,725 (single) and $487,450 (married filing jointly).

Worked Example: SE Tax on $80,000 of Net Self-Employment Income

SE tax is never computed on gross revenue. You start from net profit (revenue minus business expenses from Schedule C), then apply the 92.35% factor, then split the result between the Social Security and Medicare components. Here is the complete calculation for a freelancer with $80,000 of net self-employment income in 2026.

1. Start with net self-employment income: $80,000. This assumes revenue minus all allowable business expenses already reported on Schedule C.
2. Apply the 92.35% factor: $80,000 × 0.9235 = $73,880. This factor approximates the employer half that a W-2 worker never pays out of pocket, so self-employed income is reduced before rates apply.
3. Social Security component (12.4%): $73,880 is well below the annual Social Security wage base, so the full amount is taxed. $73,880 × 0.124 = $9,161.12. Above the wage base, this component stops entirely.
4. Medicare component (2.9%): Medicare has no wage cap. $73,880 × 0.029 = $2,142.52, applied to every dollar of net earnings no matter how high.
5. Additional Medicare (0.9%): The extra 0.9% applies only to net earnings above $200,000 for single filers ($250,000 for married filing jointly, combined with a spouse's wages). At $73,880 this is $0.
6. Total SE tax: $9,161.12 + $2,142.52 = $11,303.64. That is an effective rate of about 14.13% of the original $80,000 — lower than the nominal 15.3% because of the 92.35% factor.
7. Deduct half of it: $11,303.64 ÷ 2 = $5,651.82, an above-the-line deduction claimed on Schedule 1 of Form 1040 (see the section below).

If this freelancer also had W-2 wages during the year, the Social Security picture changes: wages count first toward the wage base, and only the remaining room is available for the 12.4% component on self-employment income. The Medicare component is unaffected — it applies to wages and self-employment income separately, with no shared cap.

SE Tax vs. W-2 Employee Payroll Tax

Self-employed workers and W-2 employees ultimately contribute the same total 15.3% to Social Security and Medicare. The difference is who pays each half. An employer remits half of a W-2 worker's FICA taxes and never counts it as wages; a self-employed person is simultaneously the worker and the employer, paying both halves out of net earnings. The 92.35% factor is the tax code's rough way of compensating for that difference.

The Half-SE-Tax Deduction, Explained

Because you pay both the employee and employer halves of FICA, the tax code lets you deduct the "employer" half of your SE tax — 50% of the total from the worked example above. Three things make this deduction valuable. First, it is above the line: it reduces adjusted gross income even if you take the standard deduction and never itemize. Second, it does not require you to be subject to self-employment tax at the margin — you may claim it even when most of your SE income is shielded by the wage base because of W-2 wages. Third, it is computed on Schedule SE itself and then carried to Schedule 1, so there is no extra form to file. Note that the deduction reduces income tax only; it never reduces the SE tax you owe.

Which IRS Forms Report SE Tax

SE tax is calculated on Schedule SE (Form 1040), officially titled "Self-Employment Tax," and filed with your annual Form 1040. Schedule SE starts from Schedule C net profit, applies the 92.35% factor, and produces the tax and the deductible half. Three companion documents matter as well: Form 1040-ES(Estimated Tax for Individuals) is the voucher set used for the quarterly payments tabulated above; Schedule 1 (Form 1040) is where the half-SE-tax deduction and the QBI deduction reduce your income; and Schedule C (Form 1040) is where business revenue and expenses produce the net profit that starts the whole chain. If your business is a partnership or S corporation, the reporting flows through Form 1065 Schedule K-1 or Form 1120-S instead of Schedule C, but Schedule SE still computes the tax on your share of earnings.

2026 vs. 2025: What Changed

• The 15.3% headline rate is unchanged. The 12.4% Social Security and 2.9% Medicare components, the 92.35% factor, and the half-SE-tax deduction all carried over from 2025 without modification.
• The Social Security wage base rises again. The cap is adjusted annually by the Social Security Administration based on national average wage growth, so high earners reach the 12.4% cutoff sooner in 2026than in 2025. Check the SSA's annual announcement for the exact figure before you file.
• The 0.9% additional Medicare threshold is fixed, not indexed. It stays at $200,000 (single) and $250,000 (married filing jointly), the same levels that have applied since 2013.
• Quarterly due dates shift. Because the 15th falls on a weekend or holiday, 2026 estimated payments land on April 15, June 16, September 15, and January 15, 2027, as tabulated above.
• QBI income limits are higher. The Section 199A thresholds in 2026 ($243,725 single / $487,450 married filing jointly) are up from the 2025 levels, allowing more taxpayers to claim the full 20% deduction before phase-outs begin.

Frequently Asked Questions