Self-Employment Tax Rate — What Is It and How It Works

The self-employment tax rate is 15.3%, but here's what most people don't realize: your actual effective rate is lower because of two built-in adjustments. Understanding this difference can help you budget correctly for taxes.

That 15.3% breaks into two parts: 12.4% for Social Security and 2.9% for Medicare. If you're self-employed, you pay both the employee and employer portions, which is why the rate feels high compared to W-2 workers.

How the Effective Rate Works

On paper, 15.3% sounds straightforward. But the IRS gives you two breaks:

1. You only pay SE tax on 92.35% of your net earnings — not the full amount. This adjustment exists because you can deduct the employer portion of your SE tax from your gross income (50% of SE tax is deductible from AGI).

2. You deduct 50% of your SE tax from your adjusted gross income before calculating income tax. So while you pay the full 15.3% in SE tax, you reduce your taxable income in the process.

The result? Your *effective* SE tax rate is lower than 15.3%. Here's what it looks like at different income levels:

| Net Self-Employment Income | Effective SE Tax Rate | |---|---| | $30,000 | 13.8% | | $60,000 | 13.8% | | $100,000 | 13.8% | | $176,100 | 13.8% (Social Security cap applies) | | $250,000 | 11.2% (additional Medicare tax starts) |

Social Security Wage Base Cap

There's a hard cap on how much Social Security tax you pay. For 2026, that cap is $176,100 per person. Once you hit that threshold, you stop paying the 12.4% Social Security portion on additional income — but you keep paying 2.9% Medicare tax on everything.

At $250,000+ of self-employment income, you also owe an additional 0.9% Medicare tax on income above $200,000 (single) or $250,000 (married filing jointly). This is why your effective rate drops slightly at very high income levels.

When SE Tax Applies

You owe self-employment tax if your net self-employment income exceeds $400 for the year. This applies to:

- Freelancers and consultants - Gig economy workers (after platform fees and mileage) - Short-term rental hosts - Side hustlers with business income - Solo business owners and sole proprietors

The SE tax rate is identical across all these categories — it's based on income type, not profession.

The Bottom Line

When you see "self-employment tax is 15.3%," remember your *effective* rate is lower due to the 92.35% calculation and the 50% deduction. Budget 14–15% for planning purposes, but your actual tax bill will be slightly lower when you file.

Calculate your exact self-employment tax →

Related Reading

- Freelance income tax guide - Quarterly tax deadlines for self-employed - S-Corp vs sole proprietor comparison