Estimated Tax Calculator
Estimate your annual federal tax and the quarterly payments due under Form 1040-ES — Apr 15, Jun 15, Sep 15 and Jan 15.
On $80,000.00 of income (single), plan for about $8,770.00 a year — $2,192.50 per quarter.
How to Use This Calculator
- Enter your expected annual income.
- Choose your filing status.
- See your annual tax and per-quarter payment.
The Formula
Taxable = income − standard deduction. Annual tax = 2026 brackets. Quarterly payment = annual tax ÷ 4 (safe-harbor rules may let you pay less if you meet the prior-year threshold).
Annual2026 bracketsQuarterlyAnnual ÷ 4DueApr 15 · Jun 15 · Sep 15 · Jan 15Worked Example
With $80,000.00 expected income as a single filer, the annual federal tax estimate is $8,770.00. Set aside $2,192.50 for each quarterly due date.
Quick Tips
- The IRS safe harbor waives penalties if you pay 100% of last year's tax (110% if AGI was over $150K).
- Pay by the four due dates even if income is uneven — penalties are computed quarterly.
- Self-employed? Include SE tax in your payments.
Frequently Asked Questions
When are estimated tax payments due?
April 15, June 15, September 15 and January 15 of the following year.
What is the safe harbor?
If you pay at least 100% of your prior-year tax (110% for AGI over $150,000), you generally owe no penalty — even if your current tax is higher.
Who must pay estimated tax?
Self-employed individuals, freelancers and anyone without enough withholding, when expected tax exceeds $1,000.