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 VAT:

1. Go to your tax configuration. #

Log in to the WHMCS Admin Area and go to Configuration () > System Settings > Tax Configuration.

2. Enable tax support. #

Set Tax Support to ON.

3. Enter your VAT ID number. #

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

4. Enable customer VAT numbers. #

Set Customer Tax IDs/VAT Numbers to ON.

5. Save your changes. #

Click Save Changes.

6. Enable VAT Mode. #

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

7. Enter a VAT label display name. #

For Name, enter the VAT label display name that you want to use, and then click Create Rules.

8. Select a VAT number validation method. #

Select a VAT number validation method for VAT Number Validation. You can choose from the following options:

• Do Not Validate (Disabled) — Do not perform any validation on VAT numbers.
• Validate Format During Checkout — Only validate whether the entered VAT number is valid for the selected country during checkout.
• Validate with Relevant Authority — Only validate the VAT number with the relevant VAT authority.
• Validate at Checkout and with Relevant Authority — Validate the VAT number format during checkout and validate the VAT number with the relevant VAT authority.

9. Select the taxed items and products. #

Click Create Rules. Then, choose the items and products to tax using this configuration.

Last modified: 2025 December 16