What is my rate limit for the TaxJar API?

During peak seasons, you may experience increased traffic to your website, which may result in an increase in sales tax calculations/rate lookups or orders pushed into TaxJar

If you’re exceeding this rate and encountering 429 errors, we recommend reviewing the following:

  • Only make calculation requests in states/regions where you have nexus.
  • Cache responses if the order details haven’t changed since the last calculation at checkout.
  • Use our summarized rates endpoint as a fallback to ensure sales tax is collected.

If you believe your company may need a higher rate limit, please reach out to your Account Manager to inquire about upgrading to increase your rate limits.