terminal root@mbit:~# whmcs-modules --billing-hosting

WHMCS modules for billing integrity and hosting operations

Cached Invoices freezes invoice history when client data, currency, or PDF templates change - with optional paid-PDF archiving. Fix Due Dates keeps service and invoice dates fair when activations or renewals are paid late. Hosting Quota Notification warns customers before disk or bandwidth limits bite, aligned with how WHMCS already refreshes usage. Less manual cleanup, fewer surprise tickets.

Stack
WHMCS 8.x
Integration
Native WHMCS flow
Focus
Billing & hosting
Docs
On-site
inventory_2

Addon lineup

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Commercial addons // catalogue

Cached Invoices - product preview
WHMCS addon

Module

Cached Invoices

cached-invoices

Keep historical invoices stable when client data, currency, or PDF templates change - archive paid PDFs and stay compliant without manual rework.

  • Keep invoices immutable when client data or PDF templates change
  • Automatically archive paid invoice PDFs (with optional FTP upload)
  • Reduce pain when users change currency or contact details
  • Edit cached invoices when your workflow still needs a correction
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Fix Due Dates - product preview
WHMCS addon

Module

Fix Due Dates

fix-due-dates

Automatically align service and invoice due dates when activation or renewal payment is late - fair for customers and far less manual work for admins.

  • Fair dates when activation or renewal payment is late (no “lost” days)
  • Fewer manual fixes on the service view and on invoices
  • Handles suspended accounts in the reconciliation logic
  • Stops punishing customers for paying a few days after order or renewal
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Hosting Quota Notification - product preview
WHMCS addon

Module

Hosting Quota Notification

hosting-quota-notification

Custom disk and bandwidth quota warnings after WHMCS cron - optional auto-suspension limits, editable email templates, fewer “disk full” emergencies.

  • Custom disk quota warning email at a configurable usage threshold
  • Daily check of active hosting accounts after WHMCS cron runs
  • Warn clients before “disk full” breaks sites and drives urgent tickets
  • Branded, operational messaging instead of silent failure
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