Free Tax Calculator
Estimate sales tax, income tax, and self-employment tax with our free calculator. Get quick estimates for business planning.
- Sales tax by state
- Income tax brackets
- Self-employment tax estimation
- Quarterly payment estimates
- Deduction impact calculator
- Year-over-year comparison
Frequently Asked Questions
How accurate are these estimates?
Estimates use current tax rates and brackets but don't account for all deductions, credits, or special situations. Use for planning, not filing. Consult a tax professional for accuracy.
Does this include state income tax?
The calculator focuses on federal taxes. State income tax varies widely. Check your state's tax authority for state-specific calculations.
How do quarterly payments work?
Self-employed individuals pay estimated taxes quarterly. The calculator divides annual estimates into four payments with typical due dates.