Billing & Invoicing

Generate QR codes for SEPA payments

Allow client to generate their own Renewal Invoice (Open Source)

Selectively enable automatic credit use on renewal invoices of specific services and domains only

A necessary addon for service providers. Invoice customers for credit hour retainers and then track time against the balance. Includes client-side reporting of balance activity.

This module helps you restrict gateways to specific countries or/and based on minimum order amount

Design your WHMCS invoices and quotes in a more professional and full control

Support the self-service renewal of domain name, virtual host, VPS / independent server and additional services in advance. Users can choose the renewal duration and use the discount code.

Easily replace the default invoice with this fully responsive, enhanced version

This WHMCS addon module changes the invoice date to be the same date as the due date for automatically generated invoices by cron and invoices initiated from the admin area for individual clients created by selecting "Generate Due Invoices".

Docsaway mailing platform prints and posts PDF documents from multiple worldwide locations. And now, integrating mailing direct from WHMCS via Docsaway is a breeze thanks to a this new module.

Provide payment methods only for certain countries or customers.

e-comercial.pt WHMCS Module

YOUR GATWAY TO GST compliance, by creating your invoices as per the Government norms.

Allow Clients to cancel fund invoices & automated cancellations of fund invoices

Automatically synchronize payment date with service (re)activation date

Create custom data and custom fields for old invoices also modify them.

This module will handle automatic cancellation of invoices when a hosting is cancelled.

Allow clients to both see their Credit Balance, Credit history and Transaction History straight from the client area

Easily allocate payments from FNB transaction exports, Or potentially any CSV file

Avalara AvaTax for WHMCS is the all-in-one Address Verification and Tax Calculation module for WHMCS.