1099 Estimated Tax Calculator

A 1099 tax estimate calculator and 1099 income tax calculator help independent contractors, freelancers, and gig workers project their annual federal tax burden before April. Unlike W-2 employees who have taxes withheld automatically, 1099 earners must pay estimated quarterly taxes to the IRS. Our free tax calculator for self employed workers combines a self employment tax calculator with progressive 2026 federal income brackets — functioning as a full self employment and income tax calculator in one interface.

Whether you need a 1099 tax payment calculator, a 1099 salary tax calculator, or an income calculator with 1099 inputs, this tool maps your gross earnings minus business write-offs to SE tax, income tax, and four equal quarterly installments. It also works as a calculator self employed tax baseline for sole proprietors and single-member LLCs filing Schedule C.

An irs self employment tax calculator follows IRS Schedule SE rules. Use our tax on self employed income calculator to map quarterly responsibilities in four steps:

1. 1
   Enter Gross 1099 Income

   Total contractor, freelance, or gig earnings before deductions. This feeds your self employed taxable income calculator starting point.

2. 2
   Subtract Business Expenses

   Net income = Gross − Expenses. If net drops below $400, SE tax is $0 per IRS rules. Use our self employment tax calculator with deductions to see the impact instantly.

3. 3
   Calculate SE Tax (15.3%)

   Taxable SE income = Net × 92.35%. Apply 12.4% Social Security (capped at $184,500 in 2026) plus 2.9% Medicare (no cap). This is the core of any tax on self employment income calculator.

4. 4
   Compute Federal Income Tax

   Subtract 50% of SE tax and the 2026 standard deduction, then apply progressive brackets. Divide total tax by 4 for quarterly payments via our 1099 tax payment calculator.