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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

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Taxes

Self-Employment Tax Calculator

Calculate self-employment tax — the Social Security and Medicare contributions that self-employed people pay on net business earnings, equivalent to both the employee and employer share of FICA combined. Use it to estimate quarterly tax payments and plan for the SE tax liability that's often the biggest tax surprise for new freelancers and business owners.

Net Self-Employment Earnings ($)

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Key differences

	Quarterly Estimated Tax Calculator	Self-Employment Tax Calculator
Category	Taxes	Taxes
Inputs required	5	1
Result	Quarterly Payment ($)	Self-Employment Tax ($)
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.	Calculate self-employment tax — the Social Security and Medicare contributions that self-employed people pay on net business earnings, equivalent to both the employee and employer share of FICA combined. Use it to estimate quarterly tax payments and plan for the SE tax liability that's often the biggest tax surprise for new freelancers and business owners.