Quarterly Estimated Tax Calculator
Self-employed or freelancer? Calculate your quarterly estimated tax payments to avoid IRS penalties.
Estimate Quarterly Payments
What This Calculator Does
- Four quarterly payment amounts
- Due date reminders (4/15, 6/15, 9/15, 1/15)
- Safe harbor calculation
- Penalty avoidance guidance
- State quarterly estimates included
Frequently Asked Questions
Who needs to pay quarterly estimated taxes?
Anyone who expects to owe $1,000+ in taxes and doesn't have sufficient withholding (freelancers, contractors, business owners, investors).
What is the safe harbor rule?
You avoid penalties by paying either 100% of last year's tax liability or 90% of this year's. If your AGI exceeds $150K, the safe harbor is 110% of last year's tax.
What happens if I miss a quarterly payment?
The IRS charges an underpayment penalty, currently around 8% annually on the underpaid amount. Pay as soon as possible to minimize penalties.
Related Calculators
1099 Tax Calculator
Calculate self-employment taxes on 1099 income. See the 15.3% SE tax, quarterly estimated payments, and compare 1099 vs W-2 take-home pay.
Take Home Pay Calculator
Calculate your take-home pay after federal, state, and FICA taxes. See net annual, monthly, and weekly pay with detailed deduction breakdowns.
Gross to Net Calculator
Convert your gross salary to net take-home pay instantly. See a detailed tax breakdown with federal, state, and FICA deductions for any salary.
All Calculators
Need the full picture?
Use our main income calculator with YTD data for the most accurate annual projection.
Open Income Calculator