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JPAC explained: armed forces pension admin & contact

Updated 16 June 2026Checked against gov.uk & GAD

JPAC, the Joint Personnel Administration Centre, handles pay, allowances and personnel administration for serving members through the Joint Personnel Administration (JPA) system. For most pension questions, serving personnel start with JPAC; veterans deal with Veterans UK.

Key takeaways

  • JPAC runs Joint Personnel Administration (JPA) for serving members' pay and admin.
  • Serving personnel use JPAC; veterans and preserved members use Veterans UK.
  • Use JPA self-service for pay and personal details where you can.
  • For a pension forecast, serving members submit form 12.

What JPAC actually is

JPAC stands for the Joint Personnel Administration Centre. It is the single tri-service hub that runs the day-to-day personnel administration for serving members of the Royal Navy, the Army and the Royal Air Force through the Joint Personnel Administration system, which everyone just calls JPA. If you are serving, JPA is the system your unit pay office and HR staff use to record your pay, your allowances, your expenses, your leave and your personal details, and JPAC is the central engine that keeps it all running behind the scenes. Think of it as the back office that the whole machine depends on.

The simplest way to describe JPAC is this. It is an administrative service, not a pension scheme. It handles the records and the money that move while you are still in uniform. When people talk about the armed forces pension being administered, they usually mean Veterans UK and the scheme paying agent rather than JPAC, because the pension schemes themselves sit with Veterans UK. JPAC keeps your service record accurate, and that record is the raw material a pension forecast is later built from, so getting it right matters.

JPAC is part of the Ministry of Defence machinery and is not a separate company or an independent body. It is also not the same thing as your unit HR or your immediate chain of command, although they all talk to each other through JPA. Your unit handles the local input and the local decisions, and JPAC handles the central processing and the queries that local staff cannot resolve. Knowing who actually owns a problem saves a lot of wasted phone calls.

Who uses JPAC and who does not

JPAC is for serving members. If you are still in, regular or reserve, your pay, your allowances and your personnel record live in JPA, and JPAC is your central point of contact when something needs fixing that your unit cannot fix. Serving members are the people who get the most out of it day to day, because almost everything administrative that happens to you while you are in uniform touches the system in some way.

Veterans and preserved members generally do not use JPAC. Once you have left, your relationship is with Veterans UK, which administers the Armed Forces Pension Schemes, the Early Departure Payment arrangements, the War Pension Scheme and the Armed Forces Compensation Scheme. So the rule of thumb I always gave people leaving was a plain one. While you are serving, start with JPAC. Once you have handed in your kit and your service has ended, deal with Veterans UK. The handover point is your discharge, not your decision to leave.

There is a grey area worth flagging. If you are in your final months of service and thinking about resettlement, commutation or what your pension will look like, you are still serving, so JPAC and JPA remain your route for pay and admin. But the pension forecast itself comes through the forecast process, and for serving members that means form 12, covered below. Many people get caught out here, assuming the same office does both. It does not. Pay and admin are one lane, pension figures are another.

How to contact JPAC and use JPA

For most serving members the first stop is JPA self-service. A good deal of routine admin can be done by you, directly, without needing to ring anyone. You can check and update many of your personal details, view your pay statements, claim certain allowances and expenses, and book leave through the self-service screens. Doing as much as you can yourself is faster than queuing for the enquiry centre, and it leaves a clean audit trail on your own record, which is exactly what you want.

When self-service cannot solve it, or when something looks wrong on your pay or record, you contact the JPAC enquiry centre. Before you do, gather your service number, because that is the first thing they will ask for, and have any relevant payslips, dates or reference numbers in front of you. The single biggest time-saver is being specific. Name the allowance, the date, the amount and what you expected to see, rather than ringing up to say your pay looks off. Vague queries get bounced back for more information and add days to the fix.

Your unit HR or pay staff are also part of this picture and are often the quickest route for anything that needs a local input or authorisation. A sensible order is self-service first, then your unit, then the JPAC enquiry centre for anything still unresolved. Keep a note of who you spoke to and when, especially for anything involving money, because if it has to be chased later that record is gold.

The forecast forms: form 12 and form 14

Two forms matter most when it comes to pensions, and people mix them up constantly. Form 12 is for serving members who want a pension forecast while still in service. Form 14 is for those who have already left and hold a preserved pension and want a forecast of that. The distinction is simply your status. If you are in, it is form 12. If you are out with a preserved entitlement, it is form 14. Get the wrong one and your request can sit in the wrong queue before anyone tells you.

The important thing to understand is that these forecast forms are processed by Veterans UK, not by JPAC, even though serving members are the ones who tend to ask about form 12. JPAC runs your live pay and admin, but the official pension figure is produced by Veterans UK off the back of your service record. So when you submit form 12 as a serving member, you are reaching past the day-to-day admin and into the pension side of the house. The forms are available through gov.uk under the Veterans UK armed forces pension forms, and they are returned to Veterans UK.

A forecast tells you what your pension and any lump sum are likely to be, based on your record to date and assumptions about your future service. It is not a quote you can hold the scheme to forever, because your pay and service will keep changing, but it is the official figure rather than a rough guess. If you are weighing up a real decision, a resettlement choice, a commutation choice, or simply whether you can afford to leave, an official forecast is the document you want in your hand.

A worked example of when to use each route

Here is an illustrative example, and the figures are only there to make the routes clear, not to predict anyone's pension. Take a serving soldier on AFPS 15 part way through their career and trying to plan ahead. An allowance they were due has not been paid this month. That is a pure admin problem, so it goes through JPA self-service and the JPAC enquiry centre with the service number, the date and the amount expected. Nothing about that touches Veterans UK.

Now the same soldier wants to know what they would walk away with if they served to the 20 year and age 40 point and qualified for an Early Departure Payment under AFPS 15. That is a pension question, not an admin one. They submit form 12 to get an official forecast from Veterans UK. As an illustration of the rates involved, under AFPS 15 the deferred pension banks 1/47th of pensionable pay each year, the EDP income starts at 34% of the deferred pension at the 20 and 40 point and rises by 0.85% of it for each whole year served beyond 20, and the EDP lump sum is 2.25 times the deferred pension. Those are the scheme rates, but only a forecast turns them into a personal number.

The point of the example is the split, not the maths. Two questions from the same person on the same day go down two different routes. The pay error is JPAC and JPA. The pension figure is form 12 and Veterans UK. Mixing them up is the most common reason people feel they are being passed from pillar to post, when in truth they have simply knocked on the wrong door.

What JPAC can and cannot do

JPAC can keep your pay and allowances correct, fix administrative errors on your record, process expenses and leave, and make sure the personnel data underpinning everything else is accurate. That last part is quietly the most important thing it does for your pension, because an accurate service record today is what makes an accurate forecast possible tomorrow. If your dates of service, rank history or pay are wrong on the system, those errors can flow straight through into a forecast, so it pays to check your record periodically rather than only when you are about to leave.

JPAC cannot give you an official pension forecast, and it does not administer the pension schemes themselves. It also cannot give regulated financial advice. This site is independent and is not affiliated with the Ministry of Defence, Veterans UK or JPAC, and nothing here, or from JPAC, is regulated financial advice. For an official forecast you go through the forecast process and Veterans UK. For advice on a decision such as whether to commute pension for a lump sum, you speak to a regulated financial adviser, ideally one who understands armed forces schemes.

It is also worth being clear that JPAC does not decide scheme rules or McCloud remedy outcomes. The remedy period runs from 1 April 2015 to 31 March 2022, and affected members choose between their legacy scheme and AFPS 15 for that window through a Remediable Service Statement. From 1 April 2022 everyone serving builds AFPS 15. Those statements come through Veterans UK and the remedy process, not through JPAC, even though your underlying service record on JPA feeds into them.

How JPAC differs from the other official routes

The official landscape has a few distinct bodies, and they are easy to confuse because they all sit under the same Ministry of Defence umbrella. JPAC handles serving members' pay and personnel admin through JPA. Veterans UK administers the pension and compensation schemes, issues forecasts and handles veterans and preserved members. The scheme paying agent is the body that actually pays a pension once it is in payment, and it is named on your award letter or payslip. Three different jobs, three different points of contact.

The cleanest way to keep them straight is by stage of life. While you are serving and dealing with this month's money, it is JPAC and JPA. When you want an official pension figure or you have left service, it is Veterans UK, using form 12 if you are still in or form 14 if you have left with a preserved pension. Once your pension is actually being paid, anything about those payments goes to the paying agent. Each body owns one clear stage, and knowing which stage you are in tells you who to ring.

None of these official bodies is the same as an independent estimate. A calculator like this one can give you a fast, free, no sign-up figure to plan around, but it is an estimate, not an official forecast and not advice. Treat the estimate as your back-of-the-envelope working, and treat the Veterans UK forecast as the official document. Used in that order, you get a quick sense of the ballpark first and the precise figure when you actually need it.

Common mistakes and your next steps

The mistakes I saw most often were avoidable ones. People rang JPAC for a pension forecast when they needed form 12 and Veterans UK. People used form 12 when they had already left and should have used form 14. People left their forecast request to the last minute and found that processing times had eaten into a resettlement or commutation decision deadline. And people never checked their own service record until they were leaving, only to discover an error in their dates or pay that should have been caught years earlier. Every one of those costs time you may not have.

On tax, two quick points that are easy to get wrong. The automatic lump sums under AFPS 75 and AFPS 05, paid at three times the annual pension, are tax-free, and the AFPS 15 lump sum you create by commuting pension at the fixed rate of about 12 to 1 is also tax-free. The EDP lump sum is tax-free too. The monthly pension itself, and the taxable EDP monthly income, are treated as taxable income in the normal way. None of that is decided by JPAC, but knowing which parts are tax-free helps you read a forecast sensibly.

So, practical next steps. While serving, do routine admin through JPA self-service and keep your service record clean, checking it now rather than at the eleventh hour. When you want an official figure, submit form 12 to Veterans UK if you are still in, or form 14 if you have left with a preserved pension, and do it well ahead of any deadline. For a decision like commutation, add a regulated adviser to the mix. And to get a quick sense of the numbers while you wait for the forecast, run an estimate through our calculator, which is free and needs no sign-up.

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Frequently asked questions

No. JPAC handles serving members' pay and personnel admin through the JPA system. Veterans UK administers the Armed Forces Pension Schemes and compensation schemes, issues forecasts and deals with veterans and preserved members. They are two different bodies with two different jobs.

James Hartley
Written by

James Hartley

Former Warrant Officer & Armed Forces Pensions Writer

James Hartley spent 22 years in the British Army, including unit personnel administration and pensions and records duties, and now writes the scheme guides and scenario pages on this site. He is not a regulated financial adviser, so the content is general information rather than personal advice.

22 years' serviceEx-Warrant OfficerResettlement IEROAFPS 75 · 05 · 15
Figures checked against official gov.uk & GAD sources
Updated 16 June 2026

Sources: gov.uk · GAD factors · Veterans UK · Forces Pension Society · MoneyHelper.