Opting Out of the NHS Pension Scheme: The Real Cost, the Forms and How to Rejoin

Opting out of NHS pension membership stops future accrual, and nothing more. It does not take back service you have already built up. With two or more years of qualifying membership those benefits become deferred, which means they sit on your record and are paid at retirement. What stops on the day accrual stops is the employer contribution of 23.7 percent of pensionable pay for 2026/27, and cover falls from the active scale to the smaller deferred scale.

What does opting out of NHS pension membership actually stop?

The market uses three phrases for this decision as though they were one thing, and they are three separate transactions with three different outcomes. Untangling them is most of the answer.

Form SD502 stops accrual. Service already bought stays on the record. If you have two or more years of qualifying membership, that service becomes deferred benefits payable at your normal retirement age.

Form RF12 claims a refund of the contributions you have paid. It is available only where qualifying membership is under two years, and it extinguishes that service outright. SD502 does not itself claim a refund, and submitting one does not trigger the other.

A short service refund lump sum is the tax name for an RF12 refund, not a third route out. It carries its own charge, which is why a refund never returns the full amount deducted.

Which NHS pension opt out form do you need, SD502 or RF12?

SD502 is the leaving form and it is the one nearly everybody wants. You complete it from the NHS Pensions website and issue it to the organisation that administers your pension record.

For a GP in England that organisation is PCSE, Primary Care Support England, which administers GP pension records and payments; in Wales the equivalent is your local health board, and Scotland and Northern Ireland run separate arrangements. PCSE's own route is to select Opt Out from the GP Pensions dashboard inside PCSE Online, with the completed SD502 issued to PCSE alongside it.

RF12 is the second form and it answers a different question. It is an application to request a refund of pension contributions, sent to the same administrator, and the two year test decides whether it is open at all. Membership eligibility by profession is set out on the NHS Pension Scheme guide.

When does an opt out take effect?

The only real deadline on this topic is the end of your first pay period, and it is not a fixed number of days.

If the application is received before the end of your first pay period, you are treated as never having been included in the scheme and the contributions taken are returned to you. If it arrives later, the opt out runs from the first day of the next pay period following receipt. Past that point you are an ex member with a record rather than someone who was never in.

The 30 day opt out window readers often expect here belongs to money purchase pensions, where the entitlement is a pot of savings. It does not reach NHS defined benefit accrual.

I cannot afford the contributions this month

This is the honest reason behind most opt outs, and it deserves a straight answer rather than a lecture. The first thing worth knowing is that the deduction costs you less than it looks.

Contributions come out of pay before tax, so at the higher rate of 40 percent for 2026/27 a £100 deduction reduces take home pay by £60. The line your payslip may label superannuation, which is the NHS word for your own pension contributions, is therefore not the sum you would recover by stopping it.

The deduction depends on the pensionable pay band it falls in, and those bands were uplifted on 1 April 2026, the NHS scheme date rather than the 6 April start of the tax year. The current bands sit on the NHS superannuation contribution calculator. Accrual during maternity and other statutory leave follows separate rules, covered on maternity pay and maternity allowance for doctors.

What does a year outside the scheme actually cost?

Three things go, and only one of them is on your payslip. The employer contribution of 23.7 percent of pensionable pay for 2026/27 stops being paid on your behalf. A year of 2015 Scheme accrual at 1/54th of pensionable earnings is never built, and that slice would otherwise have been revalued for every year you stayed active at the rate set by Treasury Order plus 1.5 percent, a rate the scheme warns can fall and can even be negative. Death in service and ill health cover drop to the deferred scale from the first day outside.

Take Dr A, an illustrative salaried GP with pensionable pay of £75,000 in 2026/27, taxed at the higher rate of 40 percent, whose payslip shows £9,375 of member contributions across the year. Because that deduction is taken before tax, stopping it adds £5,625 to her take home pay, not £9,375.

Against that, the employer contribution she forgoes is 23.7 percent of £75,000, which is £17,775. She also gives up a year of accrual worth £75,000 divided by 54, which is £1,389 of guaranteed pension every year of her retirement, and her cover falls to the deferred scale immediately.

So roughly £5,625 in, against £17,775 plus £1,389 a year plus the drop in cover. A lower marginal tax rate widens the take home gain slightly and leaves the employer side untouched.

I have had an annual allowance charge two years running

This is the other common reason, and on the arithmetic above it is usually an expensive way to solve the problem. A charge is a tax bill. Opting out to avoid it surrenders the employer contribution, the accrual and the better cover, permanently, to deal with something the scheme itself will settle.

Where a charge arises, Scheme Pays lets the scheme pay it for you and permanently reduce your pension in return at an interest cost, and its mechanics and deadlines are set out on the NHS Scheme Pays calculator.

How the allowance is measured against pension growth, and how the taper affects higher earners, is worked through on the NHS pension annual allowance calculator. If the pressure is adjusted net income rather than the allowance, that is a different problem, covered on adjusted net income for doctors.

What happens to death in service and ill health cover?

They do not disappear, they shrink, and the shrinkage takes effect on the day accrual stops rather than at some future date. This is the part of the decision most people never price, because it pays out before retirement and nobody expects to use it.

The active member death in service lump sum of twice pensionable pay is what you actually give up. A deferred member still has death cover, but on the deferred scale: a lump sum of 2.025 times the notional annual pension, and an adult dependant's pension of 33.75 percent of it.

Ill health provision works the same way. A deferred member who becomes too ill to do work of a similar kind to their former NHS job can still apply, on form AW240, and the 2015 Scheme members guide says the pension can then be paid early without any reduction. What is lost is the Tier 2 enhancement an active member can qualify for, which adds a slice of prospective service to the pension. The deferred route pays what has been earned, no more.

NHS Pension Scheme position by membership status, 2026/27

What you have	Active member	Opted out, two or more years	Refunded, under two years
Future accrual at 1/54th	Builds each year	Stops	Stops
Service already built up	Kept and revalued	Kept, deferred to retirement	Extinguished
Employer contribution of 23.7 percent	Paid on your behalf	Not paid	Not paid, and not refunded
Death cover	Lump sum of 2x pensionable pay, plus dependants' pensions	Deferred scale: lump sum of 2.025x the notional pension, adult dependant at 33.75 percent	None, once the service is extinguished
Ill health cover	Tier 1 or Tier 2, Tier 2 enhanced for prospective service	Deferred benefits payable early on ill health grounds via AW240, unreduced but not enhanced	None, once the service is extinguished

I have been in the scheme less than two years

This is the only group with a genuine refund question, which is why the refund searches cluster around recent joiners.

A refund is only available where qualifying membership is under two years. Above that line there is no refund at any price; the pot becomes deferred until your minimum or normal retirement age. PCSE states the test plainly, and earlier service in the scheme counts towards it.

The tax on a refund is set out at HMRC's Pensions Tax Manual PTM045000: 20 percent on the first £20,000 refunded and 50 percent on anything above £20,000. The scheme administrator is liable for that charge rather than you, which sounds like good news and is not, because it means the payment simply arrives net and there is nothing for you to reclaim.

A refund returns your own contributions less that charge, never the employer's 23.7 percent, and it wipes the service those contributions bought.

Can you rejoin the NHS Pension Scheme after opting out?

Yes, at any time, provided you are under the age of 75. What you do is apply in writing to your employer. The paperwork that follows is theirs rather than yours: the Joiner form PCSE describes is completed and submitted by the practice, and the SS10, SS10GP and SS14 forms sit on the NHSBSA employer hub for the same reason.

Two limits are worth knowing before you ask. Membership restarts from the first day of the pay period following receipt of your application, and the date cannot be backdated, so nothing is recovered for the gap. And you cannot rejoin while you are absent from work for any reason, which catches members who plan to opt back in during a period of leave.

A GP working across several practices needs the same joining date recorded at each of them. Rejoining also restores nothing that a refund extinguished, so a member who took the money back starts from zero on qualifying service.

Should I opt out of pension saving, on the numbers?

For most members the arithmetic says no, and the reason is the employer contribution rather than anything about investment returns. Giving up 23.7 percent of pensionable pay to keep 60 pence in the pound of your own deduction is a poor trade in any year, and it cuts the cover down at the same time.

There are situations where the question is real. A member leaving NHS work within weeks has little accrual left to protect, and a member under two years with an immediate cash problem is weighing a taxed refund against service that has not yet bought much.

None of that is advice on an individual position, which depends on the section, the service history and the marginal rate. Where the decision is finely balanced, take it to a regulated financial adviser.