Free, accurate tax calculators for freelancers
CalcSumly helps US freelancers and the self-employed figure out what they really owe — self-employment tax, quarterly estimates, take-home pay, and deductions. Every tool shows its formula, a worked example, and cites the IRS source.
Popular calculators
Self Employment Tax Calculator
Work out your Social Security and Medicare tax from net profit, with the deductible half and a full breakdown.
Quarterly Estimated Tax Calculator
Figure out what to send the IRS each quarter — income tax plus self employment tax, with due dates and safe harbor tips.
1099 vs W2 Take-Home Pay Calculator
Compare your actual take-home as a 1099 contractor versus a W2 employee at the same gross pay.
Freelance Take-Home Pay Calculator
See what you actually keep after self employment tax, income tax, and business expenses.
Freelance Hourly Rate Calculator
Find the hourly rate you need to charge to reach your take-home goal after taxes and unpaid time off.
Self-Employed Health Insurance Deduction Calculator
See how much your health insurance premiums reduce your taxable income and your actual tax bill.