● 2026/27 · Tax relief · Net cost

Pension Contribution Calculator

Pensions are the most tax-efficient way to save in the UK. Enter what you want to pay in and your tax band to see the relief added, what it really costs you after tax, and how much ends up in your pot.

💷 Relief at source ⬆️ Higher-rate relief 📅 2026/27 HMRC rates

Work out your relief

Personal pension · 2026/27

£
£
Real net cost per year
£0
for £0 into your pension
Gross pension contribution (per year)£0
Basic-rate relief at source (20%)£0
Higher / additional-rate relief to claim£0
Your net cost£0

Relief-at-source pensions add 20% automatically. Higher and additional-rate relief must be claimed via Self Assessment.

💷 Tax relief shown 📅 2026/27 rates 🏛️ HMRC & GOV.UK sourced 🔒 Runs entirely in your browser
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How pension tax relief works

When you pay into a personal pension, the government refunds the Income Tax you paid on that money. In a relief-at-source scheme, your provider claims 20% automatically — so for every £80 you pay, £100 goes into your pot. Higher and additional-rate taxpayers can reclaim a further 20% or 25%, but only by asking HMRC.

Tax bandTotal reliefNet cost of £100 in pot
Basic (20%)20%£80
Higher (40%)40%£60
Additional (45%)45%£55
£100k–£125k band~60%~£40
Don't leave money behind: roughly a quarter of higher-rate taxpayers never claim the extra 20% relief, because relief-at-source only adds the basic 20% automatically. You claim the rest through Self Assessment or by contacting HMRC directly.

The annual allowance

You can normally pay in up to £60,000 a year (or 100% of your earnings if lower) with tax relief. High earners face a tapered allowance down to as little as £10,000, and you can carry forward unused allowance from the previous three years. Going over the allowance triggers a tax charge.

Compare this with sacrificing salary instead on the salary sacrifice calculator, and project the final pot with the pension calculator.

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Pension contribution FAQs

How much tax relief do I get on pension contributions?

Relief at your highest rate. A basic-rate £80 net payment becomes £100 in the pot; a higher-rate taxpayer's £100 costs about £60 net, an additional-rate taxpayer's about £55.

What is the pension annual allowance for 2026/27?

£60,000, covering your and your employer's contributions plus relief. High earners may be tapered to as low as £10,000, and unused allowance can be carried forward three years.

How do I claim higher-rate pension tax relief?

The extra 20% (or 25% at additional rate) isn't automatic — claim it through Self Assessment or by contacting HMRC. Many higher-rate taxpayers miss this refund.

Is there a limit on tax-relieved contributions?

You get relief on contributions up to 100% of your earnings, capped at the £60,000 annual allowance. Non-earners can still pay in £2,880 net (£3,600 gross) a year with relief.

Mustafa Bilgic
Reviewed by Mustafa Bilgic
Founder, WebCalculator

Relief rates and the £60,000 annual allowance are taken from HMRC and GOV.UK for 2026/27. The tapered allowance and carry-forward rules are complex — estimates only, not personalised financial advice.