Quarterly Estimated Tax (1040-ES) Calculator
Estimate quarterly payments using IRS safe-harbor targets after expected withholding. Useful for freelancers and 1099 income.
Configure your scenario
Enter income, withholding, and prior-year tax for safe-harbor quarterly estimates.
$120,000
$27,047
$3,000
Detailed estimate
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Quarterly Estimated Taxes — quick answers
Who needs to pay quarterly estimated taxes?+
Anyone who expects to owe $1,000 or more in federal tax after subtracting withholding and credits. This commonly applies to freelancers, self-employed individuals, landlords, and investors with significant capital gains.
When are quarterly tax payments due in 2025?+
The four IRS deadlines for 2025 estimated tax payments are April 15, June 16, September 15, and January 15 of the following year (2026). If the due date falls on a weekend or holiday, the deadline moves to the next business day.
What happens if I miss a quarterly tax payment?+
The IRS charges an underpayment penalty calculated as interest on the unpaid amount for each quarter you missed or underpaid. The penalty rate is set quarterly and is tied to the federal short-term rate plus 3 percentage points.
How do I calculate quarterly estimated taxes?+
Estimate your total annual tax liability, subtract expected withholding, then divide the remaining amount by four. Use the IRS safe-harbor rule: pay the lesser of 90% of current-year tax or 100% (110% if AGI exceeds $150,000) of prior-year tax.
Can I skip quarterly payments if I have a W-2 job?+
If your W-2 withholding covers your total tax liability, you may not need quarterly payments. However, if you have significant side income (1099, investments, rental), you should make estimated payments on that additional income to avoid penalties.
Sources & Act Reference
Estimated payment rules applied
Safe-harbor percentages
IRS safe-harbor compares 90% of current-year tax against prior-year tax at 100% (or 110% for higher AGI).
Quarterly target
Remaining required annual payment after withholding is divided by four quarterly vouchers.
Rule Trace
Applied rule and official references
Applied rule: required annual payment = min(90% current-year tax, 100% or 110% prior-year tax based on AGI), net of withholding
Official quick links
Compliance checklist
Validate prior-year return length, filing status changes, and special farmer/fisher rules before final payment decisions.
Smart Insight
Estimated safe-harbor quarterly payment target is $3,000.
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