What re-entering data really costs, and how to calculate it

An invoice arrives by email, someone reads it and retypes the lines into the accounting software. A signed quote gets copied into the schedule. A paper delivery note becomes a line in the ERP again. Nobody tracks the time this takes: it is spread across twenty small tasks, never written on a single budget line. Re-keying data costs nothing on paper. It still costs, every month, a real salary.

Why re-keying costs more than it looks like#

Three minutes to retype an invoice is nothing. Three minutes, twenty times a day, in a fifteen-person company, is one lost hour every day, without counting the mistakes that come back later as a missed follow-up or a stock gap. Re-keying costs in three places:

• Time spent retyping, which is never time spent selling or producing.
• Mistakes introduced at each transcription: a reversed figure, a forgotten line, a badly copied reference.
• Delay added between the moment the information exists and the moment it is available to decide something.

The first one costs in hours. The other two also cost, but are harder to measure: you always start with time.

The method, in three steps#

1. Count the occurrences, do not guess them#

Over a week, a manager notes every time information moves from one place to another without an automatic step carrying it: a printed document retyped, a file exported then re-imported by hand, a message copied into a spreadsheet. Count occurrences, not duration: the number almost always comes out higher than expected.

2. Time one typical occurrence#

Take three representative examples and time them for real, from the source document to the final entry. Add the verification time, which is often half the total.

3. Convert into euros#

This calculation only counts one person and one type of document. In a company where three or four roles each re-key their own documents, the total adds up fast, without a single line of expenses showing it.

A worked example#

Take a renovation contractor with fewer than ten people. Supplier purchase orders arrive by email, get printed, then retyped into the project tracking sheet before being filed. Assumption: 25 orders a week, 8 minutes each between reading, retyping and filing, over 46 weeks.

This is only one item among others. A company that also re-keys hours, signed quotes and supplier invoices adds up several lines of this kind. Our own files show that, at a renovation contractor with fewer than ten people, the trips alone to drop off or collect a piece of paper already cost more than €11,000 a year.

What changes with an application built for the company#

An application built around the way a company actually works captures information once, at the source. The purchase order arrives by email and reading it fills in the project file directly, with no retyping. The signed quote becomes the order without anyone going back over the lines. Hours entered from a team leader's phone go straight into the payroll document, without passing through an intermediate spreadsheet. What the team gains does not show up in a field of the software: it shows up in the week's schedule, with one less task every day.

What not to do#

Do not automate a re-keying step you do not understand yet. If nobody knows why a document passes through three hands before being filed, the first job is to find out, not to speed it up. An automation placed on a poorly understood process simply reproduces the mistake, faster.

The cost of re-keying data: the key takeaways#

Re-keying never costs nothing: it costs time that never appears on any expense line, and mistakes that get paid for later. Counting it, timing it, then converting it into euros gives a number you can put next to a project budget, instead of relying on an impression.

This calculation, done on every document that moves from one place to another inside the company, often shows where to build first: see the budget of a custom business application and why a per-user bill grows with every hire to take the calculation further.