Planned absence estimate

Term-Time Holiday Attendance Calculator

Use this page to estimate how a planned term-time holiday or other future absence might affect attendance in days, sessions and percentages.

Estimates only. Check your school's own records when decisions matter.

Last reviewed: 12 July 2026 by Site editor and maintainer (Paul R).

Reviewed for general accuracy. Always check your school, local authority or official guidance for decisions.

Attendance calculator

Check current attendance, future absence impact, or what recovery could take.

Live estimates update as you type. The figures shown are guides, not official records.

Future absence impact

See how extra days away may change the current estimate.

Each extra full day missed adds two possible sessions and no attended sessions.

Current attendance

95%

Good

95% benchmarkBroadly in line

Above the 95% benchmark.

New attendance

91.2%

Needs attention

95% benchmark3.8 pts below

Below the 95% benchmark.

Impact estimate

After adding the planned absence

Percentage drop3.8 pts
Total missed days11
Plain English explanation

If those extra days are missed, attendance would move from 95% to 91.2% and would change the estimate by 3.8 percentage points.

How this works

A planned term-time absence adds possible sessions without adding attended sessions.

Schools and local authorities have their own processes, so the outcome for any request depends on official guidance and local policy.

This page is for planning and understanding impact, not for predicting decisions.

Guidance note

This calculator is independent and gives estimates only. It cannot tell you whether an absence is authorised, whether a penalty applies or how a school will respond.

View attendance resources

More context for this calculator

How planned absence changes attendance maths

A planned term-time holiday usually affects attendance in the same way as any other missed time in the calculation: each missed day adds two possible sessions and zero attended sessions.

That means the percentage can move more than expected, especially when there have already been previous absences or when there are fewer sessions left in the year.

Why this page stays neutral

Whether absence is authorised, how schools respond and what local authority processes may follow are questions for official guidance and the school’s own attendance policy.

This tool does not answer those policy questions. It only helps you understand the likely numerical impact before making or discussing plans.

Where to check next

If a term-time holiday or another planned absence is being considered, it is sensible to read the official guidance links on this site and check your school’s attendance policy directly.

If there are wider barriers to attendance, such as anxiety, illness, bullying, SEND or transport issues, it may help to speak to school about support rather than focusing only on the percentage.

Quick FAQs

Short answers for this calculator

A few practical answers for this tool. For formal questions, use your school's own records and current official guidance.

Does this calculator say whether a term-time holiday will be authorised?

No. It only estimates the likely attendance impact and does not predict a school or local authority decision.

How does a term-time holiday affect attendance percentage?

Each planned missed day usually adds two possible sessions and no attended sessions, which lowers the percentage.

Should I check school policy as well?

Yes. Schools and local authorities have their own processes, so official guidance and the school’s attendance policy are important.