Keep It Simple, Stupid
A cashbook that does the boring bits and nothing else.
Client ledgers keyed to your CTMS client ID, receipts captured from a phone, invoices out the door, and statements that actually tie.
Bank feed ledger
Every transaction lands unallocated. Pick an account, GST is worked out, approve and lock.
Receipts by phone
Snap a receipt or upload a bill. OCR pulls supplier, date, total and GST, then matches it to the bank line.
Invoicing
Line items by product code or plain description. Tax invoice ready to print or send.
Real reports
Profit & loss, balance sheet and trial balance from approved entries only.
Each client ledger sits at /c/<ctms client id>, so the URL matches the client record you already use. Staff see every client; a client only ever sees their own.