
TaxJar
TaxJar is a cloud platform that automates U.S. sales tax compliance for e-commerce businesses.
- 51-200
- Acquired, subsidiary of Stripe
- Boston, MA, USUnited States

TaxJar is a cloud platform that automates U.S. sales tax compliance for e-commerce businesses.
TaxJar differentiates through transparent subscription pricing, a focus on small-to-mid-sized online businesses, and a 100% on-time filing guarantee for AutoFile. The platform emphasizes ease of use, dedicated onboarding and customer success support, and broad prebuilt integrations.
Compared with legacy tax engines, TaxJar targets growing e-commerce merchants with a self-serve trial, month-to-month and annual plans, and U.S.-based support, reducing the administrative burden of multistate compliance.
Source: taxjar.com
TaxJar primarily serves e-commerce merchants, marketplace sellers, and multichannel businesses in the United States that need to calculate, report, and file sales tax across multiple states. Its customers range from new businesses on the Starter plan to larger sellers on the Professional plan with higher order volumes and multi-state filing requirements.
The U.S. sales tax compliance market has expanded following the South Dakota v. Wayfair ruling, which created economic nexus obligations for remote sellers and increased demand for automated calculation, reporting, and filing solutions.
Source: taxjar.com
TaxJar's cloud platform covers the full U.S. sales tax lifecycle for online sellers. Core capabilities include rooftop-accurate real-time tax calculations via API, aggregated multichannel sales tax reports, automated return filing and remittance through AutoFile, economic nexus tracking, and state sales tax registration support.
The platform integrates with major e-commerce systems such as Amazon, Shopify, and WooCommerce, and offers a developer API and open-source client libraries for custom integrations.
Source: taxjar.com