Is there a simple billing solution for the home network?

Question

Billing systems

Need simple billing to manually count users in a small home network. It so happened that historically I distribute the Internet, which comes from an ordinary home provider, and we pay for the channel together. All calculations are still being carried out in excel and the question arose of more detailed logging of payments and debits (users often make an advance payment so that they don’t worry about paying for the Internet for another year or six months. And it’s more convenient for them and me. The amount of debits can change in the middle of the year due to changes in the main tariff or connection / disconnection of additional users.
We need a tool that will allow you to control finances without any firewall management or integration with payment systems. That is, just for yourself and for transparency for users.
I would write such a billing myself, but suddenly there is a ready-made simple solution for such cases.

Answer 1

It seems to me that for this purpose you may well use home accounting services like this one .