1099 Quarterly Tax Calculator

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Annual Income

$

Business Expenses

Tax Rates

Quarterly Breakdown

Annual Net (After Expenses)

$75000.00

Federal Income Tax

$16500.00

Self-Employment Tax

$11475.00

State Income Tax

$3750.00

Credits / Deductions

-$0.00

Estimated Annual Tax

$31725.00

Payment Per Quarter

$7931.25

Due Dates

Q1 (Jan-Mar)$7931.25 — Due April 15
Q2 (Apr-Jun)$7931.25 — Due June 15
Q3 (Jul-Sep)$7931.25 — Due Sept 15
Q4 (Oct-Dec)$7931.25 — Due Jan 15

1099 Tax Calculator FAQ

Who needs to make quarterly tax payments?

If you're self-employed, a freelancer, or receive 1099 income and expect to owe at least $1,000 in tax for the year, the IRS requires quarterly estimated payments. This covers both income tax and self-employment tax.

What is self-employment tax?

Self-employment tax covers Social Security and Medicare. For most freelancers, it's 15.3% on net earnings (92.35% of your net profit). You can deduct half of this tax when calculating your adjusted gross income.

How do I estimate my tax rate?

Use your most recent tax bracket as a baseline. Federal rates range from 10% to 37% in the US. Add your state rate and self-employment tax (typically 15.3%) to get a full picture. Our calculator lets you plug in your exact rates.

What happens if I miss a quarterly payment?

Missing a payment can trigger an underpayment penalty. The IRS (and many states) charge interest on late or insufficient payments. If you miss one, file and pay as soon as possible to minimize penalties.

Can I adjust payments during the year?

Yes. If your income changes significantly, you can adjust a future quarter's payment using Form 1040-ES. It's better to correct course than to overpay and wait for a refund.