AAsizor
Launching soon
Tax calculation API for developers
Asizor calculates US sales and income tax from an address, with every rate broken down by jurisdiction and linked to its official source.
- Sales tax by addressState, county, city and special-district components, not just a ZIP-code estimate.
- State income taxBracket-by-bracket calculations for every filing status.
- Sources and historyEvery rate cites its official source and effective dates, with historical lookups.
Want early access? Email hello@asizor.com.