Work Patterns · Probation & Prisons

Prison Group Director Part-Time vs Full-Time Impact Calculator

See what a Prison Group Director would earn part-time. Full-time pay at the Prison Band 12 rate is £125,902; the calculator opens on “4 days (80%)”, which gives £100,722 a year before tax, £25,180 less than full-time. Pick another pattern, or switch the salary source to “My payslip gross”.

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  • Last updated:
  • HMPPS pay (Prison & Probation)
  • Free, no sign-in

You'll see:

  • Full-time equivalent pay and your pay at your chosen FTE
  • Annual difference vs full-time
Assumptions and pay data

Pay data: HMPPS pay (Prison & Probation). Prison Band 12: one rate of £125,902, 2026/27 figures. Checked 4/9/2026.

  • Pay is pro-rated by FTE (full-time equivalent) from the full-time band rate. Pro-rata and pattern rules vary by employer.
  • All amounts are gross. Tax, NI and pension are not deducted.

Part-Time vs Full-Time Impact Calculator

England & WalesHMPPSReviewed 4/9/2026

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Guide for Prison Group Director

This guide explains how part-time FTE affects gross pay for Prison Group Director on Prison Band 12 at Probation & Prisons. Pro-rata rules can vary; check your contract and HR team.

Part-time pay for Prison Group Director

As Prison Group Director at Probation & Prisons, part-time pay is usually pro-rated from full-time basic pay on your band or grade (Prison Band 12 on HMPPS pay (Prison & Probation)). Enter your FTE (for example 0.8 for a four-day week) to compare with full-time gross pay. Unsocial hours, HCAS and other enhancements are calculated on actual basic pay where they apply.

Part-time and FTE explained

Full-time equivalent (FTE) compares your contracted hours to a full-time post. 0.8 FTE usually means four days out of five: pay is typically pro-rated to 80% of the full-time salary for the same band. Employers may round or apply local rules, so treat results as a guide.

Progression and pension

Many public sector employers count part-time service at full rate for incremental progression, but not all do. Pension is different: in the career average schemes most public sector staff now build up pension in, each year adds pension based on the pay you actually earn, so a year at 0.8 FTE adds about 80% of a full-time year. Check your contract for progression dates and your pension scheme for how part-time pay affects your pension.

Example scenario

Illustrative example at bottom of band (matches calculator defaults)

Band / gradePrison Band 12
Full-time gross (example)£125,902
At 0.8 FTE (example)£100,722
Annual difference vs full-time£25,180

Frequently asked questions

What does this work patterns calculator do?

It shows how your gross pay changes when you work part-time (e.g. 0.8 FTE). It gives full-time equivalent pay, your adjusted pay at your FTE, and the annual difference versus full-time.

How is part-time pay worked out?

We take your full-time gross salary (from your band and spine point, or a figure you enter) and multiply by your FTE. For example, 0.8 FTE means 80% of full-time hours and pay. Employer rules may differ.

What does FTE mean?

Full-time equivalent. 1.0 FTE = full-time hours; 0.8 FTE = 80% of full-time (e.g. 4 days a week if full-time is 5). Your pay is typically pro-rated the same way.

Does part-time affect incremental progression?

It can. Many employers count part-time service at full rate for spine or incremental progression; others do not. The calculator includes a note. Check your employer’s policy.

As a Prison Group Director, will my employer pro-rate exactly like this?

Pro-rata rules can vary by employer and contract. Use this as a guide; your contract or HR can confirm how your FTE affects base pay and progression.

Can I compare several FTE options?

Change the FTE field and recalculate. Try 1.0, 0.9, 0.8, 0.6 to see the pay difference at each step.

Do you store my data?

Your calculator inputs and results stay in your browser and are not stored. We only collect your name and email if you choose to give them, for example to download your results or sign up for email updates. We store them with MailerLite, our email provider, along with the page you were on. See our privacy policy.

Is the result gross or net?

Gross. Tax, National Insurance and pension are not deducted. Your actual take-home will be lower.

What if I work term-time only?

This calculator uses FTE over the year. Term-time or other patterns may be calculated differently by your employer; check your contract.

About this role

What is a Prison Group Director?

A Prison Group Director (Fair and Sustainable Band 12) is a senior operational leader overseeing a group of prisons. Pay is a National spot rate published inclusive of Required Hours Allowance.

Typical demands, progression and balance

Band 12 posts sit at the top of the operational manager and governor structure and involve group-wide leadership, performance and assurance.

What about reduced hours or part-time?

Many public sector roles support part-time or reduced hours. Use the calculator above to compare full-time pay with reduced FTE for your band.

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Disclaimer

Illustrative estimates, not financial or career advice. Your payslip and contract decide what you are actually paid.