The Indirect Tax API uses limits to ensure fair and reliable access, maintain optimal performance, protect our infrastructure, and provide a consistent experience for all users.

The Indirect Tax API has both size limits and rate limits.

The size limit is five megabytes for API requests, and ten megabytes for API responses.

The rate limit applies only in the UAT environment. The rate limit policy consists of:

• Rate limits are applied per developer email.

• When the limit is reached, an HTTP 429 code is returned.

  Note:

  After reaching the limit, use exponential back-off to avoid reaching the limits repeatedly.

• Endpoints can have different rate limits:

  Method	Endpoint	Limit
  POST	/documents	50 requests per hour
  POST	/oauth/token	300 requests per hour or 5 requests per minute
  GET POST	/notifications	600 requests per hour or 10 requests per minute
  POST	/configurations	120 requests per hour or 2 requests per minute