The question most pension guides bury

Every conversation about claiming extra pension tax relief as a higher-rate taxpayer eventually hits the same fork in the road: does your pension operate on a relief at source basis, or is it a net pay arrangement?

If it's relief at source, and you're a higher-rate taxpayer, you probably have a claim to make. If it's net pay, you've likely already received the relief you're entitled to and there's nothing further to do.

Getting this wrong in either direction has consequences — missing out on money you're owed, or claiming relief you're not entitled to and triggering an HMRC query. It's worth spending two minutes getting it right.

‍

Relief at source vs net pay: the key differences at a glance

Before going into the detail, here's a side-by-side summary of how the two systems work and what they mean for higher-rate taxpayers.

‍

Relief at source: how it works

In a relief-at-source pension, you contribute from money that has already been taxed — your take-home pay. Your pension provider then claims 20% basic-rate tax relief from HMRC and adds it to your pension pot.

‍

The provider only claims 20%. For higher-rate taxpayers, the extra relief — an additional 20% for 40% taxpayers, 25% for 45% taxpayers — needs to be claimed separately through HMRC. That additional relief doesn't appear in your pension. It comes back to you as a cash refund or a tax code adjustment.

Relief at source is the standard arrangement for:

• Personal pensions you set up yourself
• Self-invested personal pensions (SIPPs)
• Many workplace pensions, including NEST
• Some group personal pension schemes

‍

Net pay arrangement: how it works

In a net pay pension, your contribution is taken from your salary before income tax is calculated. This means you receive the correct level of tax relief automatically through payroll — at your marginal rate, whether that's 20%, 40% or 45%.

You never pay tax on that slice of income in the first place, so there is no overclaimed tax to get back. In most cases, there is no additional relief to claim from HMRC.

Net pay arrangements are common in:

• Many occupational pension schemes — final salary and defined benefit schemes almost always use net pay
• Some large employer group schemes, particularly in the public sector

‍

Salary sacrifice: the third arrangement

Salary sacrifice is where you formally agree to reduce your contractual salary, and your employer pays the difference into your pension instead. The contribution is treated as an employer contribution rather than a personal one — you never pay income tax or National Insurance on it.

The effect is similar to net pay: you receive full relief automatically and there is nothing further to claim. But the mechanics are different, and the contribution shows up differently on your payslip. If your employer offers salary sacrifice, you'll usually have signed something to opt in.

Salary sacrifice contributions don't attract additional personal higher-rate relief claims, because the income was never in your pay to begin with.

‍

How to tell which arrangement you're in

You don't need to call anyone to work this out. Three quick checks will get you there.

‍

‍

What to do once you know

If you're in a relief-at-source pension and you're a higher-rate or additional-rate taxpayer, you likely have a claim to make — potentially across several years. The next step is working out how much.

If you're in a net pay or salary sacrifice arrangement, you don't have a further claim. It's worth double-checking if you've had multiple employers or pension types in the same tax year, since it's possible to have one of each.

Potly's free calculator asks about your pension type first — because the answer determines whether you have a claim at all. If you're in net pay, we'll tell you clearly rather than walk you through a process that isn't relevant to you.

‍

Potly provides administrative support and specialist review only — not financial or pension advice. Figures shown are illustrative; your actual entitlement depends on your income and contributions in each tax year.

‍