Make sure to troubleshoot and resolve any issues with payment gateways, payments, currencies, or related features as soon as possible.
WHMCS can gather necessary taxes when you make sales. First, you must enable tax support in WHMCS and configure the necessary settings.
Customize the invoice number that the system generates for each invoice by configuring the Custom Invoice Numbering Format setting.
Troubleshoot and resolve issues with missing taxes on invoices.
Change the sales tax rates on future generated invoices. You may need to do this if your local government changes your sales tax rates.
Configure WHMCS to charge the required Goods and Services Tax (GST) on purchases and collect GST Identification Numbers (GSTINs) in India.
Configure WHMCS to charge the required Value-Added Tax (VAT) on purchases and collect VAT Identification Numbers (VAT IDs) in Europe.
Enable taxes in an individual product's configuration. WHMCS will not add taxes to each of your products until you enable them.
Update WHMCS's tax configuration when sales tax rates change. Make sure to do this as close to midnight or the system cron run as possible.