How to Reduce Self-Employment Tax in 2026

At 15.3%, SE tax is the biggest tax most self-employed professionals face — larger than federal income tax at many income levels. There is exactly one strategy that actually cuts it: the S-corp election. Here's the math and what not to waste time on.

What is self-employment tax?

Self-employment tax is how sole proprietors and single-member LLC owners pay their share of Social Security and Medicare. As an employee, your employer splits this with you 50/50. When you're self-employed, you pay both halves.

The 2026 rates:¹

• 12.4% Social Security — applies to net SE earnings up to $184,500 (the 2026 SS wage base)
• 2.9% Medicare — applies to all net SE earnings, no cap
• 0.9% Additional Medicare — on SE earnings above $200,000 (single) or $250,000 (married filing jointly)

One wrinkle: the IRS doesn't apply these rates to your gross net profit. Instead, it applies them to 92.35% of net profit. That 7.65% deduction approximates the employer half of FICA — you're effectively deducting the employer portion before calculating the base.¹

Example: $150,000 net profit from your consulting LLC.

• Net SE earnings: $150,000 × 0.9235 = $138,525
• SS tax: $138,525 × 12.4% = $17,177
• Medicare: $138,525 × 2.9% = $4,017
• Total SE tax: $21,194

For comparison, federal income tax on $150K for a single filer (after the 50% SE deduction and standard deduction) would be roughly $22,000–$28,000 depending on other deductions. SE tax is an enormous share of the total bill.

SE tax by income level (sole proprietor/SMLLC, 2026)

Notice what happens above $200K: the SS portion caps out (because net SE earnings exceed the $184,500 wage base), but Medicare keeps growing. There's no ceiling on SE tax overall — it just grows more slowly above the SS wage base.

Strategy 1: The S-corp election

An S-corp owner-employee splits business income into two buckets:

1. W-2 salary — subject to FICA (employer + employee, combined 15.3% / 2.9% Medicare)
2. Distributions — not subject to FICA at all

The IRS requires the salary to reflect "reasonable compensation" for the services you perform — you can't pay yourself $1 and take everything as a distribution. The Watson v. Commissioner (2012) case established that unreasonably low salaries will be reclassified. In practice, 35–55% of net profit as salary is defensible for most service businesses, with salary benchmarks from BLS OEWS data supporting the position.²

S-corp FICA savings by income level (2026)

S-corp FICA = (salary × 12.4% up to $184,500 wage base) + (salary × 2.9%). S-corp costs of $3,500/yr represent payroll processing (~$600–$1,200) + incremental CPA work (~$1,500–$2,500) + state filing fees (~$300–$800). Your actual costs may be higher or lower. 2026 SS wage base: $184,500 (IRS Notice 2025-67).

The break-even for most service businesses sits between $80,000 and $100,000 in net profit. Below that, S-corp overhead typically consumes the tax savings. Above $200K, the savings plateau somewhat (because the SS wage base caps out on both sides), but the net annual benefit typically runs $10,000–$14,000.

Calculate your SE tax savings

What does NOT reduce SE tax

This is where most online advice goes wrong. The following strategies are genuinely valuable — but they reduce your income tax, not your SE tax. If your goal is specifically to cut the 15.3% SE tax bill, these won't help:

Solo 401(k) and SEP IRA contributions

Retirement plan contributions reduce your adjusted gross income, which lowers federal income tax and reduces QBI. But they do not reduce SE tax. SE tax is calculated on your net profit before retirement plan contributions are deducted. If you contribute $40,000 to a solo 401(k), your SE tax is identical to what it would have been without that contribution.

Section 179 and bonus depreciation

Purchasing equipment and deducting it under Section 179 or 100% bonus depreciation (OBBBA 2025, permanent for post-January 19, 2025 property) reduces your business income for income tax purposes. But for self-employed filers on Schedule C, SE tax is calculated on net profit — so a Section 179 deduction does reduce SE tax by reducing the base. This is an exception: deductions that reduce Schedule C net profit do reduce SE tax. But depreciation accelerates deductions, not eliminate them — and in S-corp structure, depreciation reduces income tax on the entity return, not the owner's SE tax (since there is none).

Clarification on deductions and SE tax: Any deduction on Schedule C that reduces your net profit will mechanically reduce your SE tax base. Home office, vehicle, meals, software — all of these reduce SE tax a little because they reduce net profit. But these are ordinary business expense deductions available whether or not you're self-employed. The S-corp election is different: it removes a large chunk of income from SE tax entirely without eliminating any income tax deductions.

QBI deduction (Section 199A)

The Section 199A deduction (23% of qualified business income, made permanent by OBBBA 2025) is an income tax deduction — it reduces your taxable income, not your self-employment earnings base. It provides significant income tax savings for pass-through owners above the standard deduction, but it does not touch SE tax at all.

Home office deduction

Same story: the home office deduction reduces net profit on Schedule C, which reduces SE tax marginally. But the magnitude is small compared to the S-corp election. A $10,000 home office deduction saves you about $1,413 in SE tax ($10,000 × 0.9235 × 0.153) — real money, but not a strategy in the sense of the S-corp restructuring.

The 50% SE tax deduction: reduces income tax, not SE tax

When you pay SE tax, you can deduct half of it from your gross income on Schedule 1, Line 15. This above-the-line deduction reduces your adjusted gross income — which reduces federal income tax.

At $150K net profit, you'd pay $21,194 in SE tax. Half of that — $10,597 — comes off your AGI. At a 22% marginal income tax rate, that's a $2,331 income tax reduction. Real value. But it does not reduce the $21,194 SE tax itself.

Think of it as partial compensation from the tax code for bearing the employer side of FICA — not a way to eliminate the underlying charge.

The 0.9% Additional Medicare Tax

Above $200,000 of self-employment earnings (single filers) or $250,000 (married filing jointly), a 0.9% Additional Medicare Tax applies.³ This is on top of the standard 2.9% Medicare component of SE tax.

At $300K net SE earnings, an unmarried filer owes:

• Standard Medicare (2.9%): $300K × 0.9235 × 0.029 = $8,034
• Additional Medicare (0.9%) on ($277,050 − $200,000 = $77,050): $77,050 × 0.009 = $693
• Total Medicare component: $8,727

The Additional Medicare Tax is not refundable and cannot be reduced by deductions or credits. The S-corp election reduces the base for this tax: if you pay yourself a $100K W-2 salary and take $200K as a distribution, only the $100K salary is subject to Medicare tax — the distribution is not.

S-corp costs: the real overhead

The S-corp election is not free. Typical annual overhead:

The S-corp election also adds administrative burden: you must run payroll at least quarterly, file Form 941 quarterly, issue yourself a W-2 by January 31, and file Form 1120-S annually. If you have other employees (even part-time), their payroll and any required contributions get layered in.

One important note: hiring your first W-2 employee other than your spouse changes your solo 401(k) status. See 1099 vs. W-2 Employee for the SECURE 2.0 long-term part-time employee rules that now apply.

When the S-corp election makes sense (and when it doesn't)

The QBI interaction: a planning wrinkle

For owners whose income exceeds the QBI phase-out threshold ($201,775 single / $403,500 MFJ in 2026), the 23% Section 199A deduction is limited to 50% of W-2 wages paid. This creates a counterintuitive tension: a lower W-2 salary saves FICA but limits the QBI deduction at high income levels.

If your QBI deduction is already being limited by the W-2 wage threshold, increasing your W-2 salary (beyond what's strictly needed for FICA savings) may recover a substantial QBI deduction — potentially worth more than the FICA you sacrifice. This optimization requires calculating both effects simultaneously. The QBI Deduction Optimizer models this tradeoff.

Sources

1. IRS Topic No. 554 — Self-Employment Tax. Rate: 15.3% (12.4% SS + 2.9% Medicare); net earnings = net profit × 92.35%; SS wage base $184,500. Cross-checked: SSA — 2026 Contribution and Benefit Base ($184,500).
2. IRS — S Corporation Compensation and Medical Insurance Issues. Reasonable compensation requirement; Rev. Rul. 74-44; Watson v. Commissioner (8th Cir. 2012).
3. IRS — Additional Medicare Tax Q&A. 0.9% on SE earnings above $200,000 (single) / $250,000 (MFJ). Thresholds are not inflation-adjusted.
4. IRS Publication 535 — Business Expenses. 50% SE tax deduction treatment as above-the-line deduction on Schedule 1.

SE tax rates and SS wage base verified against IRS.gov and SSA.gov for 2026. S-corp cost estimates are planning-level ranges, not guarantees — your costs depend on state, payroll volume, and CPA. Values updated June 2026.