About StateByStateTax.com

StateByStateTax.com provides free, accurate tax calculators and comparison tools for all 50 US states and the District of Columbia. Our mission is to help Americans understand their state tax obligations and make informed decisions about where to live, work, and retire.

What We Offer

• Income Tax Calculator — Calculate state income tax for all 50 states using real tax brackets and rates
• Sales Tax Calculator — Compare combined state and local sales tax rates
• Property Tax Calculator — Estimate annual property tax based on effective rates
• State Comparison Tool — Side-by-side tax comparison between any two states
• Self-Employment Tax Calculator — Calculate SE tax, federal tax, and state tax for freelancers
• Detailed State Guides — In-depth tax information for the 10 most-searched states

Our Data Sources

We use data from official government sources including:

• Internal Revenue Service (IRS) — Federal tax brackets, rates, and deductions
• State departments of revenue and taxation — State-specific rates and brackets
• US Census Bureau — Property tax data and state comparisons
• Tax Foundation — Research and analysis on state tax policy

Accuracy and Limitations

We strive to maintain the most accurate and up-to-date tax information possible. Our calculators use the actual tax brackets and rates published by the IRS and state tax authorities. However, please be aware that:

• Calculations are estimates based on standard deductions and common scenarios
• Individual tax situations may vary based on deductions, credits, and exemptions
• Local taxes (city, county) may affect your actual tax burden
• Tax laws change frequently; we update our data as new rates are published

Contact Us

Have a question, found an error, or want to suggest an improvement? We would love to hear from you. Visit our contact page to get in touch.