Guide
Pension Tax Relief Basic Rate: How 20% Relief Works 2026/27
Published by the UK Money Calculators editorial team. Last updated for the 2026/27 tax year.
Basic-rate pension tax relief of 20% is the foundation of the UK pension system. For most people using a personal pension or SIPP, the provider applies it automatically. You do not need to claim it. This guide covers how it works, who qualifies and what the limits are.
How relief at source delivers 20% basic rate relief
Under relief at source, used by all SIPPs and most personal pensions, you pay 80% of the gross contribution and your provider claims the remaining 20% from HMRC. Automatically. No form, no claim.
The mechanics in numbers:
- You pay £80 net → pension receives £100 gross (20% claimed by provider)
- Monthly: pay £240 → pension receives £300/month
- Annual: pay £4,800 → pension receives £6,000/year
- Lump sum: pay £16,000 → pension receives £20,000
Providers typically claim from HMRC quarterly. The 20% top-up appears in your pension within a few weeks. It works for all contribution sizes from a few hundred pounds upwards.
Who qualifies for basic-rate relief
The 20% basic-rate top-up under relief at source applies to:
- UK residents who are members of a registered pension scheme or SIPP
- Those with relevant UK earnings, limited to 100% of earnings (or £60,000 annual allowance, whichever is lower)
- Even non-taxpayers and those below the personal allowance, for contributions up to £2,880 net (£3,600 gross) per year
The non-taxpayer top-up is worth knowing about. A child, a non-working partner, or someone drawing a pension with no other income can contribute up to £2,880/year and get £720 from HMRC as a top-up. Zero income tax paid. It is a genuine government subsidy worth considering for family members with spare capital.
Net pay arrangement: a different delivery mechanism
If your workplace pension uses a net pay arrangement, the provider does not claim the 20%. Instead, your contribution is deducted from gross salary before income tax is calculated. You automatically get relief at your marginal rate. For a basic-rate taxpayer that is 20%. The pension receives the gross amount from the start.
But there is a catch for low earners. Under net pay, someone earning below the personal allowance gets no tax relief at all. There is no income tax to offset. Under relief at source they would still get the 20% top-up. The government introduced a compensatory top-up for NPA scheme members below the basic rate threshold from 2024/25. Check with your employer whether this applies to you.
Basic-rate relief: worked examples 2026/27
£100/month
Net payment
Pension receives: £125/month
Annual gross: £1500
Annual relief: £300
£200/month
Net payment
Pension receives: £250/month
Annual gross: £3000
Annual relief: £600
£400/month
Net payment
Pension receives: £500/month
Annual gross: £6000
Annual relief: £1200
£600/month
Net payment
Pension receives: £750/month
Annual gross: £9000
Annual relief: £1800
£800/month
Net payment
Pension receives: £1000/month
Annual gross: £12000
Annual relief: £2400
Are you entitled to more than 20%?
If your income exceeds £50,270 in 2026/27, you pay 40% on the higher-rate portion. You are entitled to 40% relief on contributions. But the provider only claims 20%. You need to claim the extra 20% via Self Assessment or a PAYE code adjustment.
Above £125,140, the additional rate is 45%. The extra 25% must be claimed via Self Assessment.
See the 40% taxpayer guide or how to claim higher rate relief.
Calculate your exact relief
Frequently asked questions
How quickly does the 20% top-up appear in my pension?
Providers typically claim from HMRC quarterly and the top-up appears in your pension within 6–10 weeks of your contribution. For regular monthly contributions, you will see the periodic top-up appearing as a separate credit in your pension statement.
What if I have no income, can I still get the 20% top-up?
Yes, for contributions up to £2,880 net (£3,600 gross) per year. This is available to UK residents with no earnings, including children, non-working partners and retirees. HMRC still provides the top-up even though no income tax was paid.
Does the 20% relief reduce my take-home pay?
Under relief at source, you pay the net amount (80% of gross) from your bank account. Your take-home pay is not directly involved, you transfer money from a bank account into your pension, and the provider adds the top-up. Under net pay arrangement, the contribution reduces your gross pay, slightly lowering your take-home by less than the gross contribution.