Prison Officer Reduced/Compressed Hours Calculator
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Looking at a 4-day week, 9-day fortnight, term-time only or annualised hours? This calculator shows how your pay would look for a Prison Officer under different reduced or compressed patterns compared to full-time. Compare FTE and annual pay so you can weigh up options.
Assumptions and pay data
Pay data: HMPPS pay (Prison & Probation). Illustrative prison and probation pay bands; refreshed for 2025/26-style levels. Unsocial hours and location supplements apply in prison roles. Check your employer.
- Figures are illustrative. We pro-rate full-time band pay by FTE (e.g. 0.8 for 4-day week, 0.9 for 9-day fortnight). Term-time and annualised hours use the same dataset; employer rules may differ.
- All amounts are gross. Tax, NI and pension are not deducted.
Guide for Prison Officer
This guide explains reduced and compressed working patterns for Prison Officer on Prison Band 3 at Probation & Prisons. Not every employer offers every pattern; use this for pay impact, then confirm eligibility with HR.
Reduced hours for Prison Officer
This page models named patterns (four-day week, nine-day fortnight, term-time only, annualised hours) for Prison Officer on Prison Band 3 at Probation & Prisons. Pay is pro-rated from full-time HMPPS pay (Prison & Probation) basic pay unless your contract uses a different formula.
Reduced and compressed hours
A four-day week is typically 0.8 FTE. A nine-day fortnight is 0.9 FTE (nine working days in ten). Term-time-only staff are paid for weeks worked per year. Annualised hours contracts spread agreed hours across the year rather than fixed weekly patterns.
Employer variation
Not every employer offers every pattern. Some use a 0.89 FTE term-time formula for support staff. The calculator uses straightforward pro-rata from full-time band pay; your payroll may differ.
Example scenario
Illustrative example at bottom of band (matches calculator defaults)
| Band / grade | Prison Band 3 |
|---|---|
| Full-time gross (example) | £37,355 |
| At 0.8 FTE (example) | £29,884 |
| Annual difference vs full-time | £7,471 |
Reduced/Compressed Hours Calculator
You'll see:
- Full-time pay vs your chosen pattern (e.g. 4-day week, term-time)
- Pro-rated annual pay and the difference
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Frequently asked questions
What patterns can Prison Officer compare here?
Four-day week (0.8 FTE), nine-day fortnight (0.9), term-time only, annualised hours, or a custom FTE. Pay is pro-rated from full-time Prison Band 3 pay in HMPPS pay (Prison & Probation).
How does term-time pay work for Prison Officer at Probation & Prisons?
You enter weeks worked per year (for example 39). We pro-rate annual full-time pay to that share of the year. Schools and councils sometimes use different formulas; check your contract.
Is this different from the part-time calculator?
The part-time tool uses a simple FTE slider. This one models named patterns that Probation & Prisons staff often request, which helps when discussing reduced hours with HR.
Will Probation & Prisons offer every pattern?
Eligibility varies. Some roles must maintain cover; others have term-time-only contracts by default. Use this for pay impact; HR confirms availability.
What about pension and leave on compressed hours?
Pensionable pay and leave are usually based on contracted hours. After choosing a pattern here, use the Annual Leave and Take-Home calculators with the same hours.
Are the results gross or net? Do you store my data?
Unless this page says otherwise, figures are gross (before tax, National Insurance and pension). We do not store inputs or results; everything runs in your browser.
Are these figures official for Prison Officer?
No. All outputs are illustrative planning aids. Always check Probation & Prisons, your union, regulator or official published terms for definitive amounts and rules.
About this role
What is a Prison Officer?
A Prison Officer works in a prison or young offender institution: they supervise prisoners, maintain order and safety, and support rehabilitation. Entry is via HM Prison and Probation Service (HMPPS) with training. Pay is on the national prison officer pay scale.
Typical demands, progression and balance
Prison officer roles offer variety and a chance to support rehabilitation. Pay and conditions depend on location and grade. Progression to senior officer, custodial manager or specialist roles is common.
What about 4-day weeks or compressed hours?
Many employers support 4-day weeks, 9-day fortnights, term-time only or annualised hours. Use the calculator above to compare full-time pay with your chosen pattern for your band.
Disclaimer
This calculator provides illustrative estimates only and is not financial or career advice. Pay rules and allowances can change. Always check your employer or official sources for definitive figures.