Sales tax calculator
2,998 taxing areas, each with its city, county, transit and special-district rates. State 6.25% plus local, capped at 8.25%.
OpenTexas tax calculators
Each tool reads a file the Texas Comptroller publishes and applies the statute as written. No national averages, no interpolated rates.
Property tax calculator
254 counties, 1,549 school districts and 1,244 cities at 2025 adopted rates, with the $140,000 school homestead exemption applied correctly.
OpenFranchise tax calculator
The three margin tests, the standard and EZ computations, and the $2,650,000 no-tax-due threshold for 2026 reports.
OpenHomestead exemption calculator
What the $140,000 school exemption is actually worth at your district's rate — tax with and without it, and the monthly difference.
Open Data as of the 2025 tax year
Sales rates come from the Comptroller's current city rate file; property rates from the 2025
Statewide Report of Tax Rates, published after the January 2026 submission deadline. When the
2026 files publish, the tools rebuild from the same script — the numbers change, the method does
not.