Calculate your 1099 tax liability and quarterly estimated payments. All 50 states supported. Free 1099 tax calculator 2026. No signup.
Receiving a 1099 means no taxes were withheld — you owe everything yourself. The IRS expects quarterly payments or charges an underpayment penalty. Most 1099 workers should pay taxes April 15, June 15, September 15, and January 15. This calculator shows your quarterly amount for each deadline.
W-2 employees have taxes withheld automatically. 1099 workers receive gross payments with nothing withheld — then owe SE tax (15.3%) plus income tax at filing. Missing quarterly payments costs penalty of approximately 3-5% annualized on underpaid amount.
To avoid underpayment penalties, pay either 100% of last year's tax liability (110% if income over $150,000) or 90% of current year's expected liability. If income is similar to last year, dividing last year's total tax by 4 is the easiest approach.
A reliable rule: set aside 25-30% of every payment received. For income under $50,000, 25% is usually sufficient. For $50,000-$100,000, use 28-30%. Above $100,000, use 30-35% depending on your state. Transfer to a separate savings account immediately.
The IRS charges an underpayment penalty on the shortfall — currently around 7% annualized. On $5,000 underpaid for 6 months, that is approximately $175 in penalty. You must also pay the full tax plus any interest at the regular filing deadline.
The $600 threshold applies to whether the payer must send you a 1099 form — not whether you owe taxes. If you earned $400 or more from self-employment, you must file Schedule SE and pay SE tax regardless of whether you received a 1099 form.
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The 1099 Tax Calculator — Calculate Your Quarterly Estimated Taxes uses the same formulas, rates, and reference data that financial planners, professionals, and government sources publish. Results are estimates intended for planning and education — for situations involving large sums or legal consequences, confirm with a qualified professional before acting.
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