In most small impact-driven companies, the central tool isn't software. It's a spreadsheet. It holds orders, registrations, stock, volunteers, invoicing. Someone resourceful created it, it grew, and today everyone depends on it.

The three hidden costs

1. Copying time. An order arrives by e-mail, it is copied into the spreadsheet, then into the accounts, then into a message to the customer. Each copy takes a few minutes. Multiplied by the number of orders and by 52 weeks, it becomes a budget line of its own.

2. Mistakes. A deleted row, a broken formula, two versions of the same file. A single mistake rarely costs much. But you pay for it in checking time, in customers chased, in stress.

3. Dependency. Often only one person really understands the file. When they go on holiday or leave, the tool becomes a black box.

The 15-minute calculation

Take a typical week and note, for each spreadsheet-related task:

  1. the time spent entering or copying information already written elsewhere;
  2. the time spent checking, correcting, looking for the right version;
  3. the number of people involved.

Multiply the total by 46 working weeks and by the loaded hourly cost of those people. Fictional example: three people who each spend three hours a week copying and checking add up to more than 400 hours a year, a quarter of a full-time job.

That number doesn't say you should change everything. It tells you how much you can invest to make things change.

Signs it's time to move on

  • You are afraid to open the file while someone else is using it.
  • Some information is entered at least twice.
  • Only one person knows how the file works.
  • Your customers or members expect an answer the spreadsheet can't give.
  • You dropped a project because “it would be too complicated to track”.

Two or three of these signs are enough.

Replacing a spreadsheet doesn't mean computerising everything

The goal isn't a monster system. It's a tool that does exactly what your spreadsheet does, without copying, with a history and per-person access. Add an AI agent and some tasks disappear entirely: reading an order e-mail, drafting the reply, updating the stock.

Your team is here for the mission, not to copy spreadsheets.