Estimated Tax Calculator

Enter your self-employment and W-2 income to estimate federal income tax, self-employment tax, and quarterly payments.

Tax forms, calculator, and dollar bills illustration

100% free, no signup

Aligned with IRS guidance

Instant results in-browser

Reviewed by real accountants

The Calculator

Run the numbers

Net self-employment income (year)

W-2 wages (year)

Other deductions above standard

Federal tax already withheld / paid

Self-employment tax 1,303.64

Federal income tax$7,970.60

Total federal tax 9,274.24

Balance owed 9,274.24

Estimated quarterly payment$4,818.56

How it works

Self-employed individuals owe two federal taxes: regular income tax on profit and self-employment tax (Social Security + Medicare, 15.3% up to the wage base). The IRS expects at least 90% of the current year's liability, or 100% (110% if AGI > 50k) of last year's, paid in via withholding and quarterly estimates. Miss those thresholds and you'll owe an underpayment penalty.

This tool applies 2025 single-filer brackets and the standard deduction. Married filing jointly and state tax are not included, talk to us for a full projection.