The 5-Minute Money Test: One Statement, One Number

What the number shows

The test compresses a whole month of transactions into one ratio: money kept divided by money earned. If 2 300 € came in and 180 € stayed, your number is about 8%. That is the part of your work that turned into yours.

Underneath the number sits the detail: every recurring payment found in the statement, your largest spending category, and any fee lines. But the headline number does the heavy lifting. It is memorable, it is comparable month to month, and you cannot argue with it, because it comes from your own statement, not from your memory.

If you want the full logic behind the score, we explain it in what a cashflow score really measures.

Why one number beats a spreadsheet

Spreadsheets break quietly. Research by Ray Panko at the University of Hawaii, who spent decades auditing real-world spreadsheets, found errors in roughly 88% of the spreadsheets examined. A budget spreadsheet with a silent formula error does not feel wrong. It just tells you a wrong story with full confidence.

Spreadsheets demand a habit. They only work if you feed them, and most die in week three. A test you run once, on a file your bank already produced, needs no habit at all.

And we avoid what we fear. Behavioral economists call it the ostrich effect: a study by Karlsson, Loewenstein and Seppi in the Journal of Risk and Uncertainty (2009) showed that investors check their portfolios less often when markets fall. Bank accounts work the same way. When we suspect bad news, we stop looking. A single number that takes one minute to read lowers the cost of looking to almost zero, and that is precisely why this test gets done while budgets get postponed.

What most people discover

The gap between what we think we spend and what we actually spend is well documented. In a 2022 survey commissioned by C+R Research and reported by CNBC, people guessed they spent about $86 a month on subscriptions. When walked through the categories one by one, the real average was $219. And 42% admitted they were still paying for a service they had stopped using.

So the test typically surfaces three things:

• Forgotten recurring payments, often two or three you would not have listed from memory.
• Fee lines you never consciously agreed to keep paying.
• One dominant category that is meaningfully bigger than you assumed.

A worked example

This is a model example, not real customer data. Alex earns 2 300 € net. His statement shows 2 120 € going out, so 180 € stayed: about 8%. Under the number, the test lists 14 recurring payments totalling 212 € a month, of which three are services he no longer uses, worth 34 €. It also shows 12 € in account fees and a food delivery category at 167 €.

The same evening, Alex cancels the three unused subscriptions and sets a standing order of 150 € to savings on payday. Nothing heroic, about twenty minutes of work. From the cancellations alone, next month's kept amount rises from 180 € to 214 €, roughly 9%, before he changes a single daily habit.

What you can do the same evening

• Cancel one unused subscription. The test hands you the list; pick the easiest one.
• Question one fee. Account packages and card fees are often negotiable or avoidable with a cheaper plan.
• Set one automatic transfer. Move a fixed amount to savings on payday, before spending can reach it.
• Put a date in your calendar. Run the test again next month and watch the number move. One number is easy to beat.

Five minutes, honestly counted

Two minutes to export the statement. About a minute for the analysis to run in your browser. Two minutes to read the result. That is the whole test: no account, no bank login, and nothing leaves your device without your consent. Upload one statement at app.vestelonflow.com and see your number.

You do not need to fix everything tonight. You only need to know the number. Everything useful starts there.