Services›TaxJar

TaxJar

community

Sales tax API for calculation, reporting, and filing with nexus tracking.

This is a community-generated spec

This /ai spec was auto-generated by an AI agent, not by the site owner. It may be incomplete or inaccurate.

https://taxjar.combearerfinancedeveloperconfidence: 87/1000 discoveries1 contributors

POSThttps://api.taxjar.com/v2/taxes

Calculate tax

Parameters

amountsubtotal (numberrequired

to_zipdest zip (stringrequired

from_ziporigin zip (stringrequired

shippingshipping (numberrequired

line_itemsitems (object[]optional

to_countrydest country (stringrequired

from_countryorigin country (stringrequired

Returns

tax with order_total_amount, shipping, taxable_amount, amount_to_collect, rate, has_nexus, freight_taxable, breakdown

GEThttps://api.taxjar.com/v2/rates/{zip}

Get tax rates

Parameters

zipzip code (stringrequired

citycity (stringoptional

countrycountry (stringoptional

Returns

rate with zip, state, state_rate, county, county_rate, city, city_rate, combined_rate, freight_taxable

GEThttps://api.taxjar.com/v2/categories

List tax categories

Returns

categories[] with name, product_tax_code, description