Quarterly Tax Estimator
Estimate 2026 quarterly tax payments (Form 1040-ES) for freelancers and self-employed. Calculate federal income tax + self-employment tax with payment schedule and due dates.
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Income
Deductions & Status
How Quarterly Estimated Taxes Work
- If you expect to owe $1,000+ in taxes, you must make quarterly estimated payments.
- Payments cover both federal income tax and self-employment tax.
- Due dates: April 15, June 15, September 15, and January 15.
- Underpayment may result in penalties from the IRS.
Safe Harbor Rules
- Pay 100% of prior year tax liability (110% if AGI over $150K)
- Or pay 90% of current year tax liability
- Meeting either threshold avoids underpayment penalties
- 100% client-side calculation
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Disclaimer: This tool is provided as-is for informational and educational purposes only.