Free Tools / Quarterly Tax Estimator

Quarterly Estimated Tax Calculator

Self-employed or freelancer? Calculate your federal estimated quarterly payment, including self-employment (SE) tax. Avoid IRS underpayment penalties.

Tax Year

Filing Status

This Year's Income

Self-Employment Income (Net)

Net profit from Schedule C, K-1, or 1099 work

Other W-2 Wages (if any)

W-2 Federal Withholding

Already paid via W-2 paycheck withholding

Adjustments

Other Above-the-Line Deductions

HSA, SEP-IRA, Solo 401(k), self-employed health insurance, etc.

State

Override %

Already Paid This Year (Optional)

If you already paid earlier quarters, we'll recompute remaining quarters.

Q1 Paid

Q2 Paid

Q3 Paid

Safe Harbor (Optional)

Pay 100% of last year's tax (110% if AGI > $150K) to avoid penalties even if you under-estimate.

Prior Year Total Tax (Form 1040 Line 24)

Prior Year AGI

These are general estimates for reference only, not tax advice. Privacy

Fill in your details and click Calculate to see your quarterly payment plan.

General estimate for reference only, not tax advice. Excludes AMT, NIIT, QBI deduction, most credits, and state-specific quarterly rules. Due dates may shift when they fall on a weekend or holiday. Consult a licensed CPA for your specific situation.

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