# Tax identification numbers The Digital River Extension allows shoppers to enter their **Tax Identification Number** during order placement, have the ID validated, and, if appropriate, the order totals will be updated accordingly. The shopper must: 1. Select the **This is a Business Purchase** check box on the **Shipping Address** screen, when purchasing physical goods, or on the **Payment Information** screen when purchasing digital or virtual goods.\

2. Enter the **Tax ID** and click **Apply**. ## **Order summary before application of the Tax ID**

## **Order summary after application of the Tax ID**

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