Learn about the Indirect Tax API size and rate limits that affect your requests and responses.

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:

• The API applies rate limits per developer email address.

• When you reach the limit, the API returns an HTTP 429 code.

  Note:

  After you reach the limit, use exponential backoff to avoid repeated limit errors.

• Endpoints can have different rate limits:

  Endpoint	Limit
  /oauth/token	50 requests per hour
  v1/documents	1000 requests per hour
  v1/notifications	600 requests per hour
  v2/configurations	120 requests per hour