Quarterly Tax Calculator
Estimate U.S. federal estimated tax payments for freelancers, contractors, and self-employed taxpayers.
Your annual tax estimate
Enter net profit after deductible business expenses, not gross sales.
For example, taxable interest or other income not included in business profit.
Helps estimate the Social Security portion of self-employment tax.
Include federal income tax withholding from W-2 wages and other sources.
Enter your estimated eligible credits. This simplified calculator does not determine credit eligibility.
Use the applicable total tax from your prior-year return for the safe-harbor comparison. Enter 0 if unknown.
Used to estimate whether the 110% prior-year safe-harbor threshold may apply.
Your estimated taxes
Estimated quarterly payment
$4,000
Annual business profit$80,000
Estimated self-employment tax$11,304
Estimated federal income tax after credits$6,000
Estimated total federal tax$17,304
Expected withholding$0
Estimated annual tax after withholding$17,304
Annual safe-harbor payment target$15,574
The payment estimate uses the current-year tax estimate and, if supplied, the prior-year safe-harbor amount.
Estimated payment schedule
Disclaimer: This calculator provides a simplified federal estimate, not an official Form 1040-ES calculation. It excludes state estimated taxes, many tax credits, alternative minimum tax, the Net Investment Income Tax, special deductions, and complex annualized-income rules. The prior-year safe harbor depends on eligibility and the correct prior-year tax figure. Income and withholding may not be earned evenly throughout the year. Check the IRS Form 1040-ES instructions or consult a tax professional before making payments.