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Quarterly EstimatedTax Calculator

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

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2026 Tax Law Built In
Rev. Proc. 2025-32 & OBBBA
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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.

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.

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