For some years now I use the ISPConfig Billing Module to create hosting and consulting invoices for my customers. Soon, in germany we have to fulfil new requirements concerning "ERechnung" (also known by X-Faktura, Zugferd, ...) for B2B invoices. Because I just got the upgrade notification for another year of Billing Module Updates: Are there any plans, are you working on an update implementing the requirements for future B2B invoices in germany? So far I haven't found any information on that topic.
This is basically just a new custom invoice template, but unfortunately, the rules and format are quite complex. However, some open-source library projects have already implemented the XML format in PHP. I'll also use the tool for my invoices, so I will have to make a new template for ERechnung.
That is exactly why I am reaching out before prolonging Billing module to check if there is any update planned for an "official" template supporting ERechnung. Do you plan to publish a how-to for creating a template for ERechnung or maybe include it as template in an upcoming Billing module update? BTW: Are there any updates planned in next months?
The template will be included in the Billing Module. I'll release a Billing Module update when I finished it. The Billing Module does everything it is supposed to do, so there is not much to update except the ERechnung. However, I am considering adding some functions for time-based invoicing, like billing customer support or development time, which would be handy. This would mean adding lists for hourly rates, a way to easily enter start and end times, maybe even with some kind of start/stop time button, and an optional project list and selector.
