> For the complete documentation index, see [llms.txt](https://docs.digitalriver.com/digital-river-api/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.digitalriver.com/digital-river-api/administration/dashboard/customers/tax-ids/adding-a-tax-id.md).

# Adding a tax ID

Learn how to add a tax identifier to a customer.

To add a tax ID to a customer:

1. Click **All customers** in the left navigation. The Customers page appears.
2. [Search](/digital-river-api/administration/dashboard/customers/searching-for-customers.md) or scroll to find the customer you want to edit.
3. Click the customer ID link under the **Customer** **ID** column. The Customer details page appears.
4. Click the **Add tax ID** button in the Tax section. If a tax ID already exists, click the **Add tax ID** link under the existing ID. The Add tax ID dialog box appears.

   <figure><img src="https://334437993-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LqH4RJfLVLuHPXuJyTZ%2Fuploads%2FfJ3WyVMQMkPVm0uJjf4L%2F1%20adding%20a%20tax%20id.png?alt=media&amp;token=9368beeb-81bf-4a97-a553-5f1fc0fc2f68" alt=""><figcaption></figcaption></figure>

   \
   ![](https://334437993-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LqH4RJfLVLuHPXuJyTZ%2Fuploads%2FdQ5m5oiC6EciSJYwixg2%2F2%20adding%20a%20tax%20id.png?alt=media\&token=b0d606ba-aa57-41b9-8225-fda4234a20a8)
5. Enter the required information and click **Add**.
6. A green **Tax identifier added** dialog box will appear in the screen's bottom left corner.