Pension Tax Relief: How It Actually Works
The Basic Concept
When you put money into a pension, the government adds extra money on top. This is tax relief, and it is one of the most valuable tax benefits in the UK.
The idea is simple: pension contributions come from your pre-tax income. Since you have already paid tax on that income, the government gives some of it back through your pension.
How Much Do You Get?
It depends on your income tax rate:
- Basic rate (20%): For every £80 you contribute, the government adds £20. Total in your pension: £100
- Higher rate (40%): Your £60 effectively puts £100 into your pension (after claiming additional relief)
- Additional rate (45%): Your £55 effectively puts £100 into your pension
How Is It Applied?
Basic Rate Relief (Automatic)
Your pension provider claims 20% tax relief from HMRC and adds it directly to your pension pot. You do not need to do anything.
If you set up a £200 monthly contribution, your pension provider will claim £50 from HMRC, and £250 will go into your pot each month.
Higher and Additional Rate Relief (Claim It)
If you pay tax at 40% or 45%, you receive the basic 20% automatically, then claim the additional relief (20% or 25%) through your Self Assessment tax return. This reduces your tax bill or increases your refund.
Do not forget this step. Many higher rate taxpayers miss the additional claim, losing hundreds or thousands of pounds per year.
A Worked Example
Sarah earns £55,000 and contributes £5,000 to her pension:
- Pension provider claims 20% relief: £1,250 added to pot
- Total in pension: £6,250
- Sarah claims additional 20% on her Self Assessment for income above £50,270
- Additional relief: approximately £750 reduction in her tax bill
- Sarah's effective cost: £5,000 - £750 = £4,250 for £6,250 in her pension
The Annual Limit
You can contribute up to £60,000 per year (2025/26) or 100% of your earnings, whichever is lower. Unused allowance can be carried forward from the previous three years.
Track your earnings with Accounted so you know your tax band and can claim every penny of relief.
Tax relief is free money — claim it all. Sign up for Accounted and make sure your Self Assessment captures your full pension tax relief.
Tax & Compliance Specialists
Our tax specialists have decades of combined experience in UK sole trader and small business taxation, MTD compliance, and HMRC submissions. All content is reviewed against current HMRC guidance before publication and updated quarterly to reflect legislative changes.
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