You keep the file. Let it answer the hard questions.
The books are already right. What is missing is the cut your client runs the business by — by project, by client, by department — and a way to show where each figure came from when they ask. That is all Kamino does.
The answer survives being questioned
When a client pushes back on a figure, you do not rebuild the workpaper. You open the figure and the invoices are there, with the arithmetic and the scope written out. The conversation ends in a minute instead of an evening.
You are not the reporting department
Clients ask operator questions — which job made money, which client is expensive, where the hours went. Kamino answers those from the file you already maintain, so the questions stop arriving as ad-hoc requests to you.
Same question, same answer
Determinism matters most to the person whose name is on the pack. Run it in the morning and at month-end and you get the same figure unless a record changed — and the service note says the picture is corrected on every sync.
Several client files
Practices running more than one file are priced by conversation, not by a published per-entity multiplier — that multiplier is exactly what makes report packs expensive at scale. Email info@kamino.app with how many files you carry and what you need out of them.
Corrected on every sync with your accounting platform.
For most files it takes an afternoon: connect QuickBooks Online, and your client’s profit by project, client and department is there, with the invoice behind every figure one click away.