Spreadsheets for coaches: useful early, limiting later

A spreadsheet, whether Excel or Google Sheets, is enough to launch a coaching business: a few clients, one session format and payments you can check without effort. It becomes a bottleneck when you spend more time updating the file than using it, when payments need checking every week, or when clients have to message you to book.

The problem is not the tool itself. A spreadsheet stores information very well, but it does not act: it does not confirm a booking, send a reminder or flag an unpaid session at the right moment. All of that work stays with you, and it grows with every new client.

To be fair, spreadsheets have real strengths, and it is no accident they are where most coaches start. They are free or close to it, you already know how to use them, and they adapt to any way of working.

For one-off analysis, such as comparing revenue year on year or working out how profitable a format is, a spreadsheet is often more flexible than any specialized software.

A spreadsheet's limits are invisible with five clients. They show up gradually, as information multiplies and the file becomes the center of your business without ever being designed for it.

The most expensive limit is often the last one on the list: the spreadsheet describes your business but does nothing for you. Every reminder, confirmation and follow-up remains a manual task.

Tick the situations you recognize. If you tick three or more, your spreadsheet probably costs you more time than it saves.

Take an illustrative case: a coach works with 20 active clients and around 80 sessions a month. Updating the schedule, recording payments and double-checking details takes about fifteen minutes per working day, which is more than five hours a month, not counting reminders sent by hand.

At €50 an hour, those five hours are worth €250 of billable time every month. Add one or two mistakes, such as a session missing from payment tracking or a slot booked twice, and the free spreadsheet becomes the most expensive tool in your business.

If your practice is still small, a well-built spreadsheet can carry you a few more months. The key is one row per session, not one row per client, and drop-down lists for statuses to avoid typos.

Organize the file into three tabs: Clients (one row per client), Sessions (one row per session) and Payments, or simply payment columns in the Sessions tab. These are the minimum columns for the Sessions tab:

Each tool has its place. Spreadsheets are good for analysis, messaging apps for relationships, dedicated software for running day-to-day operations. Trouble starts when you ask one to do the others' job.

Migration does not need to be a big project. Start with what is live: active clients, upcoming sessions and outstanding payments. Everything else can stay in your file, which becomes a searchable archive.

Avoid running both systems side by side for more than two weeks; it is the surest way to lose track of which one is up to date.

Grix covers the three core tabs of a coach's spreadsheet, but connected to each other: client records, sessions and their payment status. It adds what a spreadsheet cannot do: an online booking page, automatic email reminders, at-risk client alerts and a dashboard that works out revenue and outstanding payments on its own. The Free plan covers 10 active clients, enough to test it on your real business.

There is no automatic file import: you add your active clients, and new clients are created automatically the first time they book. For custom analysis and bookkeeping, your data exports to CSV or Excel, so your spreadsheet keeps a role, as an archive and analysis tool rather than your central system.