Sales Tax

Tax and total by state.

Example

You enter

You get

Checked against published worked examples from: Texas Comptroller of Public Accounts.

Details, formula, and sources

Formula or tableTax = subtotal × state_rate. Total = subtotal + tax. State rates from data/crosswalks/state-tax-rates.json.

Source and editionThe statewide base rate published by each state revenue department. Local district rates are not included and are not bundled.

Free accessFree at each state revenue-department site.

What governsEstimate. AHJ and licensed professional govern.

API field namesstate, subtotal, rate_percent, tax, total

Rate table data/crosswalks/state-tax-rates.json; statewide base rate onlystate revenue department per row
Scheduled change DC 6.0% through 2026-09-30, 7.0% from 2026-10-01, applied by dateDC Office of Tax and Revenue, Notice of Oct. 1, 2025 Tax Changes
Local rates counties, cities and special districts add their own; use the override field with the combined rate for the delivery addressstate and local taxing authorities

Details, formula, and sources

Formula or tableTax = subtotal × state_rate. Total = subtotal + tax. State rates from data/crosswalks/state-tax-rates.json.

Source and editionThe statewide base rate published by each state revenue department. Local district rates are not included and are not bundled.

Free accessFree at each state revenue-department site.

What governsEstimate. AHJ and licensed professional govern.

Rate table data/crosswalks/state-tax-rates.json; statewide base rate onlystate revenue department per row
Scheduled change DC 6.0% through 2026-09-30, 7.0% from 2026-10-01, applied by dateDC Office of Tax and Revenue, Notice of Oct. 1, 2025 Tax Changes
Local rates counties, cities and special districts add their own; use the override field with the combined rate for the delivery addressstate and local taxing authorities