A house-share tool could record agreed expenses and household tasks in one shared space. It should keep estimates, requested contributions and confirmed payments separate so members can understand the current position.
Expenses need a description, date and agreed split. Changes should preserve a history rather than silently altering what others previously accepted. Household jobs may need a rota, while private account credentials should never be stored in a shared task note.
Pilot with a simple set of recurring bills and test someone moving out partway through a period. Avoid automatically moving money without an appropriate payment arrangement and explicit authority. The useful starting point is a clear shared record, with members able to query an entry before treating it as agreed.
Related reading: Customer Portal Development.