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

Estimated Tax Payments Calculator

Estimate your quarterly IRS tax payments to stay compliant and avoid underpayment penalties. Useful for freelancers, self-employed individuals, and anyone with income not subject to automatic withholding.

Expected Annual Income ($)

Prior Year Tax Liability ($)

Taxes Already Withheld ($)

Estimated Deductions ($)

Fill in the required fields to see your result.

Taxes

Business Tax Deduction Calculator

Estimate your total allowable business tax deductions for home office use, vehicle mileage, equipment purchases, and business meals. Designed for freelancers, sole proprietors, and small business owners preparing Schedule C.

Home Office Square Feet (sq ft)

Total Home Square Feet (sq ft)

Business Miles Driven (miles)

Equipment Purchases ($)

Business Meals ($)

Fill in the required fields to see your result.

Key differences

	Estimated Tax Payments Calculator	Business Tax Deduction Calculator
Category	Taxes	Taxes
Inputs required	4	5
Result	Quarterly Payment Amount ($)	Total Business Deductions ($)
What it does	Estimate your quarterly IRS tax payments to stay compliant and avoid underpayment penalties. Useful for freelancers, self-employed individuals, and anyone with income not subject to automatic withholding.	Estimate your total allowable business tax deductions for home office use, vehicle mileage, equipment purchases, and business meals. Designed for freelancers, sole proprietors, and small business owners preparing Schedule C.