What a market supplement is, and who gets one
In shortA market supplement is a non-pensionable extra for Band 3 officers at prisons with acute recruitment and retention challenges, paid on top of the zone and contract figure.
The HMPPS jobs site states that supplement prisons "will retain that status until at least March 2027" and that the supplement may be withdrawn from a site if no longer necessary.
It is a Band 3 payment. The sources we read do not describe an equivalent for Band 4 or 5 staff, and Band 2 supplements were consolidated into Band 2 base pay from 1 April 2023. At 30 June 2025, 3,124 full-time-equivalent Band 3 staff were eligible.
- Market supplement
- Also called a targeted retention payment by HMPPS. Paid to Band 3 prison officers on Fair and Sustainable terms. Not part of base salary, non-pensionable, paid in 12 monthly instalments.
- "Red" and "red plus"
- Older PSPRB shorthand for historical tiers: "red" for £2,000 and "red plus" for £3,500. The PSPRB describes the current amounts as £1,500, £2,000, £3,000 and £3,500.
The full list: all 18 prisons and their amounts
In shortEighteen prisons are on the HMPPS list at 3 October 2026: three at £1,500, ten at £2,000, one at £3,000 and four at £3,500.
The table below is the list shown by HMPPS Prison and Probation Jobs on 3 October 2026, with the net value we estimate for a basic-rate taxpayer. The count of 18 prisons matches the Minister's January 2026 letter to the PSPRB, reproduced in Appendix C of its report.
| Prison | Supplement a year | Gross a month | Approx. net a year (basic rate) | Pay zone |
|---|---|---|---|---|
| Grendon and Springhill | £1,500 | £125 | £1,080 | National |
| Huntercombe | £1,500 | £125 | £1,080 | National |
| Standford Hill | £1,500 | £125 | £1,080 | National |
| Bedford | £2,000 | £167 | £1,440 | National |
| Coldingley | £2,000 | £167 | £1,440 | National |
| Downview | £2,000 | £167 | £1,440 | Outer London |
| Feltham | £2,000 | £167 | £1,440 | Outer London |
| High Down | £2,000 | £167 | £1,440 | Outer London |
| Highpoint | £2,000 | £167 | £1,440 | National |
| Send | £2,000 | £167 | £1,440 | National |
| Stocken | £2,000 | £167 | £1,440 | National |
| The Mount | £2,000 | £167 | £1,440 | National |
| Winchester | £2,000 | £167 | £1,440 | National |
| Aylesbury | £3,000 | £250 | £2,160 | National |
| Bullingdon | £3,500 | £292 | £2,520 | National |
| Elmley | £3,500 | £292 | £2,520 | National |
| Swaleside | £3,500 | £292 | £2,520 | National |
| Woodhill | £3,500 | £292 | £2,520 | National |
Source: HMPPS Prison and Probation Jobs, Prison officer pay (3 October 2026); framework and Minister's January 2026 letter in PSPRB 25th Report Appendix C. Net values are our estimate at 20% tax and 8% National Insurance with no pension deduction; monthly gross is rounded.
What each tier does to your total pay
In shortThe supplement is flat, so it matters most at the start of the scale: at a £3,500 prison, pay point 1 is £38,428 against £34,928, close to Outer London starting pay.
- Pay point 1 at a £3,500 prison£38,428Against £34,928, a 10% difference
- Pay point 3 at a £3,500 prison£40,278Against £36,778
- Take-home, National starter at £3,500 prison£29,902Outer London starter with none: £29,791
The comparison with London is revealing. A National-scale officer at a £3,500 prison starts on £38,428, close to the Outer London starting pay of £38,840 without a supplement. After tax, we estimate a National starter at a £3,500 prison takes home about £29,902 against £29,791 for an Outer London starter with no supplement.
An Outer London officer at Downview, Feltham or High Down with the £2,000 supplement would be on about £40,840 gross, a little under the Inner London start of £40,876 on the HMPPS tables, if the two are additive as we read them.
- Non-pensionable: it does not increase your pensionable pay, so it is neutral for your Alpha pension contribution band and does not build pension.
- It is taxable and counts for National Insurance.
- Lenders may treat it differently from basic pay, so ask before relying on it for a mortgage; our mortgage calculator lets you test pay with and without it.
| Pay point | No supplement | + £1,500 | + £2,000 | + £3,000 | + £3,500 |
|---|---|---|---|---|---|
| Pay point 1 | £34,928 | £36,428 | £36,928 | £37,928 | £38,428 |
| Pay point 2 | £36,150 | £37,650 | £38,150 | £39,150 | £39,650 |
| Pay point 3 | £36,778 | £38,278 | £38,778 | £39,778 | £40,278 |
Pay from PSPRB 25th Report Appendix E; totals are our arithmetic. Only the base pay column is pensionable.
The erosion framework and the 2026 changes
In shortSince April 2025 supplements are reviewed annually and eroded by about £500 a year where evidence supports it, so treat one as a declining benefit.
The principle is described in the PSPRB's report and the Minister's letters. We treat the HMPPS list as authoritative for current amounts; the older tier names are historical.
An illustrative path: a £2,000 supplement eroding by £500 a year would pay £2,000, £1,500, £1,000, £500 and then nothing. That is a scenario, not a forecast, and the review is evidence-based, so it could stop or reverse.
The pay award is meant to offset it: a 3.5% award on the £34,928 pay point 1 figure is about £1,200 a year gross. That offset is the design intention; whether you feel it depends on your pay point and contract.
How the framework has played out
- From April 2025Annual-review framework begins
Gradual erosion of about £500 a year where the evidence supports it, aligned with the annual pay award so that take-home pay does not fall.
- Autumn 2025First annual review
It took effect on 1 April 2026.
- 1 April 2026Two outcomes
Aylesbury downgraded from red plus to red; red supplements gradually eroded at Grendon, Standford Hill and Huntercombe.
- 3 October 2026HMPPS page shows
Aylesbury at £3,000 and those three prisons at £1,500, consistent with a £500 step.
Why supplements exist: the policy background
In shortSupplements are a long-running way to deal with local recruitment problems without a regional pay scale; the POA wants them consolidated and the PSPRB thinks they should be phased out.
Underlying all of this is the staffing picture: HMPPS workforce statistics to 30 June 2026, published on 20 August 2026, show 22,001 full-time-equivalent Band 3 to 5 officers, 701 fewer than a year earlier, a resignation rate of 5.6% and 2,116 appointments in the 12 months to 30 June 2026.
None of that tells you what will happen to your own prison's supplement. The 2027 review is part of the next pay round, which the Ministry of Justice began on 15 July 2026. For the latest, see our pay rise page.
For the wider picture of pay by location, see pay by region and London pay.
How supplements got here
- 2022 awardAmber supplements removed
- 1 April 2023Band 2 supplements consolidated into base pay
- 1 September 2023Extra £3,000 for Band 3
From the 2022/23 PSPRB award; it eroded the old amber supplement.
- 2025 and 2026 reportsCurrent framework set out
The positions on the public record
POA
- Wants all supplements consolidated into base pay, which would make them pensionable and permanent.
PSPRB
- Thinks they should be phased out, but made no recommendation either way in its 2026 report.
Supplement prison or London? A worked comparison
In shortAt the start of the Band 3 scale a £3,500 supplement prison is within about £110 of Outer London take-home, but London pulls ahead as pay progresses.
The most common real choice is between a supplement prison on National pay and a London prison with no supplement. The arithmetic at the start of the Band 3 scale, on 37 hours, shows how close they are.
A National starter takes home about £27,382 on our 2026/27 estimates. At a £3,500 prison that rises by £2,520 to about £29,902, which is within about £110 of an Outer London starter with no supplement (£29,791).
An Outer London officer at Downview, Feltham or High Down with the £2,000 supplement would be about £31,231, a little above an Inner London starter without one (£31,168).
Two things make the picture less tidy
Pay progresses
- As you move to pay point 3, or to a longer contract, the London premium grows with your pay while the supplement stays flat, so London pulls ahead over a career.
Security of the amount
- The supplement is eroding at some prisons and could be withdrawn, whereas the London differential is part of the PSPRB's pay scale and rose by 3.5% in 2026.
| Where | Gross | Take-home a year | Take-home a month |
|---|---|---|---|
| National, no supplement | £34,928 | £27,382 | £2,282 |
| National, £1,500 supplement | £36,428 | £28,462 | £2,372 |
| National, £2,000 supplement | £36,928 | £28,822 | £2,402 |
| National, £3,500 supplement | £38,428 | £29,902 | £2,492 |
| Outer London, no supplement | £38,840 | £29,791 | £2,483 |
| Outer London, £2,000 supplement | £40,840 | £31,231 | £2,603 |
| Inner London, no supplement | £40,876 | £31,168 | £2,597 |
Pension taken only on the base pay column, at the Alpha band for that pay. Excludes student loan and Payment Plus. Our estimates, not payslips.
What the published sources do not say
In shortThe sources are clear about amounts and headline rules and silent on the details that decide individual cases, so we do not state those rules.
We could not find published answers to the questions below. HMPPS's page says only that it is non-pensionable, paid in 12 monthly instalments, and that qualifying prisons keep the status until at least March 2027.
- Whether a supplement is paid in full during sickness absence, maternity or other leave.
- Whether it is paid pro rata to contract hours or in full on a 39 or 41 hour contract.
- Whether it applies during probation.
- What happens to it if you transfer or are promoted.
Where to get the answer
If any matter to you, ask the establishment's HR, check your offer letter, and speak to your POA representative. You can also read the monthly instalment line on a payslip to see how it is treated.
For how supplements fit alongside other pay, see prison officer overtime, contract hours and Band 3 pay.
Should you pick a prison for the supplement? A checklist
In shortA supplement is a reason to look at a job, not a reason by itself: it is non-pensionable, eroding at some prisons and can be withdrawn.
The most valuable question is why that prison needs one: high vacancies, difficult working conditions or distance from where staff live all affect your experience.
Use the steps below. They combine the pay arithmetic with questions only the establishment can answer, so that you compare like with like. Our job offer comparator and prison finder help with the first two.
- Not pensionable: it does not build your Alpha pension.
- Band 3 only, on Fair and Sustainable terms.
- Applies by establishment, not by region or county.
- Check the current tier and the exact salary figure in the live advert, and whether it includes the supplement.
- Convert to take-home: a basic-rate taxpayer keeps about 72% of the supplement.
- Ask when the establishment's supplement was last reviewed and whether it has been reduced.
- Ask whether the supplement is affected by contract hours, probation, sickness absence or transfer. We could not verify these rules.
- Weigh the non-pay side: staffing levels, the prison's inspection reports and shift pattern, using the prison's directory page.
- Do not assume the amount will stay; plan on contracted pay and treat the supplement as a bonus.
Frequently asked questions
Which prisons pay a market supplement in 2026?
Eighteen on the HMPPS list at 3 October 2026. £1,500: Grendon and Springhill, Huntercombe, Standford Hill. £2,000: Bedford, Coldingley, Downview, Feltham, High Down, Highpoint, Send, Stocken, The Mount, Winchester. £3,000: Aylesbury. £3,500: Bullingdon, Elmley, Swaleside, Woodhill. Check the live advert for the current amount.
Is the market supplement pensionable?
No. HMPPS describes it as non-pensionable and paid in 12 monthly instalments. It does not count towards your Alpha pension and no pension contribution is deducted from it. It is taxable and subject to National Insurance. Its value in your pocket is about 72% for a basic-rate taxpayer.
How long will market supplements last?
HMPPS says supplement prisons retain that status until at least March 2027, and that a supplement may be withdrawn if it is no longer necessary.
Under the framework from April 2025 amounts are reviewed annually and eroded by about £500 a year where evidence supports it, aligned with the pay award. No end date beyond that has been published.
Do all prison officers get a market supplement?
No. It applies to Band 3 officers on Fair and Sustainable terms at the named prisons only. At 30 June 2025 about 3,124 full-time-equivalent Band 3 staff were eligible. Officers elsewhere receive their zone pay and contract pay without a supplement.
Why did Aylesbury's supplement go down?
The first annual review under the April 2025 framework took effect on 1 April 2026. The Minister's letter reported that Aylesbury was downgraded from red plus to red, and the HMPPS page now shows £3,000.
Three other prisons, Grendon, Standford Hill and Huntercombe, were eroded to £1,500. We read these as £500 steps, but check the current advert.
Does a supplement count towards a mortgage?
We could not verify how lenders treat it. Because it is non-pensionable and may be reviewed or withdrawn, some lenders may weigh it differently from basic pay. Ask your lender before you rely on it, and test your position with and without it in a mortgage calculator.
Will market supplements be consolidated into basic pay?
Not currently. The POA wants all supplements consolidated into base pay. The PSPRB thinks they should be phased out but made no recommendation in its 2026 report. Any change would come through the 2027/28 pay round, which started on 15 July 2026.
Sources
- prisonandprobationjobs.gov.ukHMPPS Prison and Probation Jobs: Prison officer pay
- assets.publishing.service.gov.ukPSPRB Twenty-Fifth Report on England and Wales 2026 (CP 1550), published 26 March 2026
- gov.ukGOV.UK: PSPRB Twenty-Fifth Report on England and Wales 2026 (publication page)
- assets.publishing.service.gov.ukHMPPS written evidence to the PSPRB for 2026/27
- gov.ukGOV.UK: Income Tax rates and Personal Allowances
- gov.ukGOV.UK: Rates and thresholds for employers 2026 to 2027