Is promotion to Band 4 worth it? Prison officer pay 2026/27

Going from Band 3 prison officer to Band 4 supervising officer looks like a big jump on paper: £4,550 a year more from the top of Band 3. In your bank account it’s smaller, about £256 a month.

That isn’t a reason not to go for it. But it helps to know exactly what you’ll gain, where the rest goes, and how it changes with your pay point, your contracted hours, London pay and your pension. All the figures below use the 2026/27 HMPPS pay rates and our prison pay calculator.

The short answer

On 37 hours at a national-rate prison, moving from the top of Band 3 to Band 4 changes your monthly pay like this:

So of every extra pound, about 68p reaches your account, around 27p goes in tax and NI, and the rest goes into your pension. That pension money isn’t lost, and we’ll come back to what it buys you.

Where you start on Band 3 makes a big difference

Band 3 has three pay points, and Band 4 is a single spot rate. So the earlier you’re promoted, the bigger the jump. Here’s the monthly take-home gain from each Band 3 pay point, by contracted hours:

Two things stand out. First, the gain from pay point 1 is bigger, but you’re less likely to be promoted that early, because you need to finish probation and build up experience on the wings first. Second, the longer your contract, the more promotion is worth, because Band 4 pays more for every extra committed hour as well.

There’s a quieter point too. If you’re at pay point 1 or 2, you’ll move up anyway each April. Promotion brings forward money you’d partly get by waiting. At the top of Band 3 there’s nowhere left to go, which is why many officers start looking at Band 4 around then.

Why the take-home gain is smaller than the pay rise

Tax and NI. Most Band 3 and Band 4 officers pay 20% tax and 8% NI on their top slice of pay. Even a Band 4 officer on 41 hours earns £46,541 nationally, under the £50,270 higher-rate line. So 28p of each extra pound goes straight to HMRC.

The alpha pension rate. Alpha contributions are 4.6% of pensionable pay up to £36,199, and 5.45% from £36,200 to £56,000. If you’re on Band 3 pay point 1 or 2, you pay 4.6%. Band 4 pensionable pay is £41,328, so you pay 5.45%, and it applies to all of it, not just the part above the line. That’s why the jump from pay point 1 adds £53.81 a month to your pension deduction. At pay point 3 you’re already on 5.45%, so the pension line rises less.

A student loan. If you’re on Plan 2, another 9% of the rise goes on repayments. From the top of Band 3, that brings the monthly gain down to £222.41.

What it does for your pension

This is the part people forget. Alpha builds up 2.32% of your pensionable pay every year, as pension you get for life. At Band 4 your pensionable pay is £4,550 higher than at the top of Band 3, so each year you spend at Band 4 adds about £105.57 a year to your pension, on top of what you’d have built anyway.

The extra contribution costs about £248 a year, or roughly £198 once tax relief is taken into account. Put another way: you pay around £198 a year now for £106 a year of pension for life, which is also increased with inflation. Ten years at Band 4 adds around £1,056 a year to your pension in today’s money. You can test your own numbers in our civil service pension calculator.

Promotion or overtime?

At the top of Band 3, about 16 hours of Payment Plus a month gives you the same take-home as promotion to Band 4, at £23 an hour. That’s roughly two extra 8-hour shifts a month.

On money alone that sounds close, but they aren’t the same thing:

• Payment Plus depends on shifts being available, and it stops when the prison no longer needs the cover. Band 4 pay arrives every month.
• Payment Plus doesn’t count towards your pension. Band 4 pay does.
• You can do both. Payment Plus is paid at the same flat rate for Bands 3 to 5, so promotion doesn’t cost you your overtime.

Our Payment Plus calculator shows what any number of extra hours is worth after tax.

In London

The cash gap between the bands is the same in London as nationally, because the London uplift is added to both. What changes is your starting point: London Band 3 officers are already on the 5.45% pension rate. See London prison officer pay for the prisons in each zone.

What changes besides the money

As a supervising officer you run a wing or unit on a shift. You lead the Band 3 officers on duty, keep the regime on time, deal with incidents until a custodial manager arrives, and check reports before they go up the line. Specialist officers at Band 4, such as dog handlers or PE instructors, do a set job instead but get the same pay.

Newly promoted supervising officers are expected to complete a Diploma in Team Leading. The full role, specialist posts and what you need to apply are on our supervising officer salary page.

The next step: custodial manager

For many officers, Band 4 matters most because it leads to Band 5. A custodial manager starts on £44,900 on 37 hours nationally, about £201.36 a month more in take-home than Band 4, and Band 5 has its own pay points, rising to £47,057. See the custodial manager salary page for the full scale.

Acting up before you’re promoted

You may be asked to cover as a supervising officer before you’re promoted, usually on temporary promotion. The rules on how temporary promotion is paid, and from when, are set locally and in HMPPS policy, so check your offer or ask HR before you start. Acting up is also the best way to find out whether you want the job, and it gives you examples for your application.

Is it worth it?

It’s worth more than the monthly figure suggests, and less than the headline salary suggests:

• Clearly worth it if you’re at the top of Band 3, on 39 or 41 hours, and want to move towards custodial manager. You get roughly £271 to £291 a month more, plus a bigger pension.
• Worth thinking about if you’re still moving up Band 3 pay points and enjoy the job as it is. Waiting gets you some of the money anyway, without the extra responsibility.
• Not about the money if you’re mainly chasing more take-home. Payment Plus can match it in the short term, but it’s less reliable and builds no pension.

The bottom line

From the top of Band 3, promotion to Band 4 is worth about £256 a month in your pocket and around £106 a year of extra pension for every year you stay. The salary jump looks bigger than it feels, so judge it on the take-home, the pension and whether you want the route to custodial manager.

Work out your own figures

Our take-home pay calculator has a prison service setting. Try your current band and pay point, then switch to Band 4 on the same hours and area to see your own difference.

Related reading: prison officer payslip explained, prison officer pay for every band and is a 5% pay rise good?

This is general information. Figures are for 2026/27, HMPPS staff in England and Wales, worked out with the QuidTools prison pay calculator. Pension figures are in today’s money and assume alpha’s 2.32% build-up rate.