United States · 2025 · Self-employed / 1099

Self-employment tax & quarterly estimates

Work out your real tax as a freelancer or 1099 contractor — self-employment tax, income tax, the QBI deduction, your quarterly payment, and how it compares to a W-2 job.

💡 Freelancers owe 15.3% self-employment tax (Social Security + Medicare) on top of income tax — the #1 surprise that catches people out. Set money aside each quarter. Estimate for 2025, single/MFJ; verify with a tax pro or the IRS.

Your numbers

Net self-employment income after business expenses

Other W-2 wages if you also have a job (optional)

Filing status

Claim 20% QBI deduction? most sole proprietors qualify

1099 vs W-2 — same pay, what you keep

If you were paid the same amount as a W-2 employee instead of a 1099 contractor, you'd only pay half the payroll tax (your employer pays the rest). Here's the take-home each way on your net income above.