Free calculators and tools to help you understand your taxes and make informed decisions
Quickly check if you should make estimated tax payments based on your income and withholding.
Check if you need to file a federal tax return this year
Calculate your estimated federal tax refund for 2025
Calculate your self-employment tax and quarterly estimates
See if you benefit more from the standard deduction or itemizing
Estimate if you’re over- or under-withholding from your paycheck
Plan your federal estimated tax payments for self-employment or side income
Answer a few questions to see your most likely filing status
See if your work is more like a W-2 employee or 1099 contractor (or both)
Figure out which 1099 form matches your income.