A long missing feature from WHMCS is the ability to send proper account statements to customers showing all their unpaid invoices.
This module will allow the following functionality.
NOTE: This addon is now free and open source on bitbucket.
If you find this addon useful then feel free to make a donation via https://www.paypal.me/russmichaels
The best place to start if you need help with a specific product is to contact the developer. All WHMCS Marketplace developers have both a website and support URL listed.
1.2 fixed to work with whmcs 6.x
CleanHTML Invoice and Quote Free template.
As WHMCS does provide tax rules options where you can configure your GST tax but we have some extra features in our module that makes it stand out and necessary to use.
Allow Clients to cancel fund invoices & automated cancellations of fund invoices
This module allows you to place product description on invoices
Allow your clients to automatically login from Invoice Emails