How long do school reports actually take? (And how to change the answer)

Every year, the same thing happens. Report season arrives, teachers open their laptops on a Tuesday evening in May with a quiet confidence that they'll “get through a few tonight,” and two hours later they've written three reports and somehow it's 10pm.

The honest answer to how long reports take is: longer than you think, every time.

The maths

Let's do the calculation properly. If you have a class of 30 and each report takes an average of 20 minutes to write, that's 10 hours of writing. If each report takes 30 minutes — not unusual for a detailed report covering multiple subjects — that's 15 hours.

That's roughly two full working days, fitted into evenings and weekends while you're also teaching.

And that's before you account for the thinking time — the sitting and trying to remember what Year 4 Jamie did that was so notable, the re-reading what you wrote last term to make sure you haven't said the same thing, the careful navigation of what to say about the child whose year has been difficult.

Our Report Time Calculator gives you a realistic estimate based on your class size, report length, and writing speed. The results are, for many teachers, clarifying in a slightly uncomfortable way.

Where the time actually goes

If you track your time carefully through a report session, the split usually looks something like this:

• Actually writing: 40%
• Trying to remember specific details about a child: 25%
• Finding the right phrase for something you know but can't articulate: 20%
• Re-reading, editing, second-guessing: 15%

The writing itself is often not the bottleneck. The remembering and the phrase-finding are where the hours go.

How to change the numbers

Observation notes throughout the year cut the remembering time dramatically. Brief, regular notes — a few bullet points per child after lessons where something notable happened — mean that at report time you're curating rather than excavating.

A phrase bank cuts the phrase-finding time. Not as a copy-and-paste solution, but as a starting point that you then personalise. The difference between starting from a blank page and starting from a solid phrase is often the difference between 25 minutes and 12 minutes per report.

Batch writing — writing all reading comments for the whole class, then all maths comments — cuts transition time and produces more consistent quality than going child by child.

A first draft / editing split — writing fast without editing, then returning to review in a separate session — is consistently faster than writing and editing simultaneously.

What a realistic good outcome looks like

With good processes in place, most teachers can get average report time to 12-15 minutes per child for a well-observed class. For a class of 30, that is 6-7.5 hours — still significant, but a meaningful improvement on 12-15.