1099 Tax Calculator
Calculate estimated taxes owed on 1099 freelance and self-employment income. Enter values for instant results with step-by-step formulas.
Formula
SE Tax = (Income - Deductions) × 92.35% × 15.3% | Income Tax = progressive brackets on (Income - Deductions - SE deduction)
1099 contractors pay both SE tax (15.3%) and income tax. Deduct half of SE tax from income for income tax calculation.
Frequently Asked Questions
What is the difference between marginal and effective tax rates?
Your marginal rate is the rate on your last dollar of income. Your effective rate is the average across all income. Understanding this helps assess the true tax impact of additional income.
How do tax brackets work?
Tax brackets are ranges of income taxed at specific rates. Only income within each bracket is taxed at that rate. Moving into a higher bracket does not raise your entire tax rate.
What is the difference between a tax deduction and a tax credit?
A deduction reduces taxable income (saving at your marginal rate). A credit directly reduces your tax bill dollar for dollar. Credits are more valuable.
How do I estimate quarterly tax payments?
Estimate annual tax liability and divide by four. Due dates: April 15, June 15, September 15, January 15. Pay at least 90% of current year tax or 100% of prior year to avoid penalties.
What tax deductions are available for self-employed workers?
Self-employment tax deduction, health insurance premiums, home office expenses, business supplies, vehicle costs, retirement contributions (SEP-IRA, Solo 401k), and professional development.
How do state taxes affect my overall tax burden?
Seven states have no income tax. Rates vary widely. When comparing jobs or relocating, factor in state income tax, sales tax, and property tax for a full picture.