Enable Proforma InvoicingEnable proforma invoicing, which ensures sequential invoice numbers for paid invoices. Some countries' accounting practices require this.
InvoicesThe Invoices tab in General Settings allows you to configure how WHMCS generates and sends invoices and applies late fees.
Merge InvoicesMerge invoices to combine multiple separate invoices into a single comprehensive invoice and delete the previous separate invoices.
Missing Domain Renewal InvoicesTroubleshoot and resolve issues with domain renewal invoices that aren't generating.
Regenerate InvoicesRegenerate an invoice for a specific period, or regenerate old invoices after moving to WHMCS to ensure accurate historical records.
Skip an InvoiceSkip a specific invoice without charging the customer for that billing period. The system will resume billing on the next due date.
Snapshot Customer Invoice DataConfigure WHMCS to automatically store client data (the client's name, address, and tax ID) at the time of invoice generation.
Unexpected Next Due DateTroubleshoot and resolve unexpected changes to a service's Next Due Date value.
Change Invoice Tax RatesChange the sales tax rates on future generated invoices. You may need to do this if your local government changes your sales tax rates.
Customize Your LogoYou can easily change the logo in emails, on generated invoices, and in the Client Area.