Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Quarterly Estimated Tax Calculator

Calculate how much to pay each quarter in estimated taxes to avoid IRS underpayment penalties. Designed for freelancers, self-employed workers, and anyone with income not covered by employer withholding.

Expected Annual Income ($)

Prior Year Tax Liability ($)

Expected Withholding & Credits ($)

Estimated Deductions ($)

Filing Status

Fill in the required fields to see your result.

Taxes

Quarterly Estimated Tax Calculator

Estimates your quarterly federal estimated-tax payment by applying your expected effective tax rate to expected annual income and dividing into four equal installments. Designed for the self-employed, contractors, retirees, and anyone with significant non-wage income that does not have tax withheld at source.

Expected Annual Income ($)

Estimated Tax Rate (%)

Fill in the required fields to see your result.

Key differences

	Quarterly Estimated Tax Calculator	Quarterly Estimated Tax Calculator
Category	Taxes	Taxes
Inputs required	5	2
Result	Quarterly Payment ($)	Quarterly Payment ($)
What it does	Calculate how much to pay each quarter in estimated taxes to avoid IRS underpayment penalties. Designed for freelancers, self-employed workers, and anyone with income not covered by employer withholding.	Estimates your quarterly federal estimated-tax payment by applying your expected effective tax rate to expected annual income and dividing into four equal installments. Designed for the self-employed, contractors, retirees, and anyone with significant non-wage income that does not have tax withheld at source.