# Tax calculation

Source: https://developer.avalara.com/products/communications/integration-guides/communications-integration/bju8097477344341/

Guide: Communications

# Tax calculation

The following table lists the configuration requirement for returning extended tax information in your integration.

Requirement

Use Case

Endpoint(s)/Model(s)

Required/Conditional/Suggested

[Return extended data](/communications-integration/pps5406875286916/)

Users should be able to indicate whether extended tax information should be returned.

[RequestConfig](https://developer.avalara.com/api-reference/communications/v2/models/RequestConfig/)

Suggested