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Quarterly Estimated Tax Calculator

Figure out what to send the IRS each quarter — self-employment tax, the safe-harbor rule, and 2026 due dates included.

Self-Employed & 1099

Quarterly Estimated Tax Calculator

No employer withholding taxes for you? The IRS expects four payments a year — and charges penalties when they're short. Estimate what you should be sending in, including self-employment tax and the safe-harbor rule that can lower your required payments.

Filing status

Expected self-employment profit this year ($)

W-2 wages, you + spouse ($/yr)

Federal tax withheld from those wages ($/yr)

Other income — interest, rental, etc. ($/yr)

Last year's TOTAL tax (1040 line 24)

Was last year's income over $150k?

Estimated payments already made this year ($)

Have Us Handle Your Quarterlies

Educational estimate for 2026 federal taxes only (Rev. Proc. 2025-32; SE tax with the $184,500 Social Security wage base; simplified 20% QBI deduction; standard deduction assumed). Not tax advice — state tax, itemizing, credits, and mid-year income swings change the answer. Pay online at irs.gov/payments (IRS Direct Pay). We set clients up with exact vouchers, annualized-income calculations for uneven earnings, and reminders each quarter.