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Both calculators run independently β€” change the inputs on either side to compare results.

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.

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.

Fill in the required fields to see your result.

Key differences

Business Tax Deduction CalculatorQuarterly Estimated Tax Calculator
CategoryTaxesTaxes
Inputs required52
ResultTotal Business Deductions ($)Quarterly Payment ($)
What it doesEstimate 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.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.