# Ship-to address exemption

Source: https://developer.avalara.com/ecommerce-integration-guide/designing/ship-to-address-exemption/

**Element type:** Suggested

**Endpoints/models used:** N/A

When the user selects a `Customer` and a `ShipTo` address for the transaction, AvaTax will check to see if the customer has an exemption certificate on file for that state. If the API doesn't find an exemption certificate for that `ShipTo` address, then your UI should still provide options to identify individually a document or line item as exempt. You can do this in your integration using either an entity use code or an exemption number. For certification, use entity use codes.