Business calculator
Freelancer Tax Estimator, Quarterly Taxes & Self-Employment Tax
Calculate quarterly estimated tax payments and total tax liability for freelancers and self-employed individuals. Includes self-employment tax and business deductions.
How CalcMesh estimates self-employment tax
Self-employed workers in the United States owe a 15.3% self-employment tax, 12.4% for Social Security plus 2.9% for Medicare, in addition to ordinary income tax. For 2026, the Social Security portion applies up to $184,500 of covered earnings; we also apply the deduction for one-half of self-employment tax that the IRS allows.
We estimate quarterly and annual liability from your net earnings using these published rates, but tax outcomes depend on deductions and state rules we cannot see; our approach is described in our methodology. For filing, consult a qualified tax professional.
How Freelancer Taxes Work
As a freelancer, you receive 1099 forms instead of W-2s. No taxes are withheld, so you pay quarterly. Total tax = Self-Employment tax (15.3% on net SE income) + Federal income tax + State income tax.
2026 Federal Tax Brackets (Single)
| Taxable Income | Rate |
|---|---|
| $0 – $12,400 | 10% |
| $12,400 – $50,400 | 12% |
| $50,400 – $105,700 | 22% |
| $105,700 – $201,775 | 24% |
| $201,775 – $256,225 | 32% |
Top Deductions for Freelancers
- Home office: Dedicated workspace, simplified method: $5/sq ft up to 300 sq ft
- Health insurance: 100% of premiums if not covered elsewhere
- SEP-IRA: Up to 25% of net earnings (max $72,000 in 2026)
- QBI deduction: 20% of qualified business income (if income under thresholds)
- Business vehicle: Use the current IRS standard mileage rate or actual expenses, as applicable.
Related Data
See detailed tax data by state and income level at IRS Tax Topic 409. Compare independent worker statistics and gig economy trends at OSHA.
Disclaimer: This is an estimate for planning purposes only. Tax liability depends on your full situation. Consult a tax professional (CPA) or use tax software. State taxes are NOT included here.
Methodology & Assumptions
This calculator implements standard formulas drawn from primary-source authorities. Values are point-in-time estimates; consult a licensed professional for high-stakes decisions. See the per-input definitions and source citations below.
How this works
Computations are deterministic and run client-side, no inputs leave your
browser. Formulas are derived from
standard published formulas for the calculator's domain (mortgage,
taxes, energy, conversions, etc.). When the underlying agency publishes
updated rates or thresholds we refresh defaults and update the page's
lastmod timestamp.
| Input | Default | Source / authority |
|---|---|---|
| All inputs | Domain-typical defaults | Editorial methodology, CalcMesh 2026 |