Spreadsheets are one of the most useful tools ever built for business, and there's no shame in running on them early on. The problem isn't spreadsheets themselves — it's not recognizing the point where they've become a liability rather than a convenience.
The first sign is version confusion: multiple people editing copies of the "same" file, with no clear source of truth, and someone eventually working from stale data without realizing it. The second is manual reconciliation — if staff spend real time each week cross-checking numbers between spreadsheets that should already agree, that's a system doing a database's job badly.
A third sign is fragility: a single formula error or accidentally deleted row silently corrupting a report nobody double-checks. A fourth is access control — spreadsheets have no meaningful way to let some people view data and others edit it, so businesses either over-share sensitive information or bottleneck everything through one person.
The fifth, and often the clearest, is scale: what worked for 50 customers or 200 transactions a month becomes unworkable at 500 or 2,000. If any of these sound familiar, it's usually a sign that a proper system — even a modest, purpose-built one — would pay for itself within months in recovered staff time alone.