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Quarterly Estimated Tax Calculator

Compute your quarterly 1040-ES payment to avoid an IRS underpayment penalty.

Taxable income

$69,950

Federal income tax

$10,303

Self-employment tax

$5,652

Annual estimated tax

$15,955

Safe-harbor target: $15,955 (avoids §6654 underpayment penalty)

Q1 (Apr 15)

$4,000

Q2 (Jun 15)

$4,000

Q3 (Sep 15)

$4,000

Q4 (Jan 15 next)

$4,000

Federal-only estimate. Add state and local tax if your state collects quarterly (most do). Penalty threshold: owe less than $1,000 after withholding to skip.

About this tool

Type expected annual income (W-2 + freelance / 1099), deductions, prior-year AGI, and filing status. Get the safe-harbor payment (100%/110% of last year's tax) and the regular-installment amount split across Q1–Q4. Targets the r/freelance, r/tax, r/RealEstate 'how much do I send the IRS in April' question.

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