You can configure WHMCS to charge Value-Added Tax (VAT) on purchases and collect VAT IDs from clients on the order form.

Configure Tax Rules for VAT #

To configure WHMCS to collect UK VAT numbers:

1. Enable tax support in WHMCS. #

Go to Configuration () > System Settings > Tax Configuration.

Set Tax Support to ON.

2. Enter your VAT ID. #

To display your own VAT ID on invoices, enter it for Your Tax ID/VAT Number.

3. Enable customer VAT numbers. #

Set Customer Tax IDs/VAT Numbers to ON.

4. Save your changes. #

Click Save Changes.

5. Enable VAT mode. #

Select the VAT Settings tab and set VAT Mode to ON.

6. Choose a UK VAT validation mode. #

Choose a validation mode for UK VAT Validation Mode:

• Remote Verification validates VAT numbers against official UK tax authority records and minimizes reporting requirements for your business. We recommend this validation mode for most WHMCS installations.
• Accept All VAT Numbers accepts all UK VAT-formatted numbers without performing any external validation.
• Accept All VAT Numbers and Create a To Do Item accepts all UK VAT-formatted numbers without performing any external validation. When you receive an order that includes a VAT number, the system will create a new to-do item for manual VAT number verification at Utilities > To-Do List.
• Deny All will deny all UK VAT-formatted numbers as invalid.

7. Enter a VAT label display name. #

For Name, enter the VAT label display name that you want to use.

8. Save your VAT settings. #

Click Create Rules.

9. Select the items to tax. #

Choose the items and products to tax using this configuration.

Last modified: 2025 May 8