Pension Tax Relief for Higher and Additional Rate Taxpayers

For a 20% (basic rate) taxpayer, pension tax relief is a useful subsidy. For a 40% or 45% taxpayer, it is one of the most powerful legitimate tax planning tools available in the UK. A higher rate taxpayer making a £10,000 pension contribution effectively pays only £6,000 net; an additional rate taxpayer pays £5,500. The pension grows tax-free, and the income in retirement is often taxed at a lower rate than the original contributions were relieved at.

Yet higher rate relief is routinely underclaimed. HMRC does not automatically apply the additional relief for higher and additional rate taxpayers who contribute to a personal pension. It must be claimed — and many people never do, leaving significant sums with HMRC that are legitimately theirs.

This guide explains the mechanics of higher rate relief, how to claim it, salary sacrifice, the tapered annual allowance, and how carry forward can amplify the benefit further.

Important: Tax rules change and individual circumstances vary considerably. This guide is for general educational purposes only. You should seek advice from a qualified tax adviser or regulated financial adviser before making pension contribution decisions. Pension values can fall as well as rise.

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How Basic Rate Relief Works

The foundation of pension tax relief is the basic rate relief added at source. When you make a contribution to a personal pension, SIPP, or group personal pension (that uses relief at source), you contribute the net-of-basic-rate amount and the scheme claims 20% from HMRC to add to your pot.

For example: you contribute £8,000 from your bank account to your personal pension. The scheme claims £2,000 (20%) from HMRC and adds it to your pot. Total pension contribution: £10,000. Cost to you: £8,000.

This happens automatically — you do not need to do anything to receive it. The scheme handles the reclaim from HMRC.

For higher and additional rate taxpayers, this automatic process is where the relief ends. The additional relief (20% for higher rate, 25% for additional rate) must be claimed separately.

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How Higher and Additional Rate Taxpayers Claim the Extra Relief

Self-Assessment

The most common route is via self-assessment. If you complete a self-assessment tax return (which most higher earners do), you enter the gross amount of your pension contributions in the "pension contributions" section. HMRC will automatically adjust your tax calculation to allow for the additional relief, which is delivered via a reduced tax bill or a direct repayment.

Example — 40% taxpayer:

• Gross pension contribution: £10,000 (you paid £8,000 net; scheme added £2,000)
• Tax return entry: £10,000 gross contribution
• Higher rate relief: 20% × £10,000 = £2,000
• HMRC will adjust your tax calculation to provide £2,000 additional relief
• Total net cost of a £10,000 pension contribution: £8,000 − £2,000 = £6,000
• Effective contribution bonus: £10,000 for £6,000 outlay = 40% bonus on cost

Example — 45% taxpayer:

• Higher rate relief: 20% (claimed via return) + 25% of the remaining (additional rate element): 20% basic at source + 25% via self-assessment
• Net cost: £5,500 for a £10,000 pension contribution
• Effective contribution bonus: £10,000 for £5,500 outlay = over 45% bonus on cost

Coding Notice Adjustment

If you do not complete a self-assessment return, you can request HMRC adjust your PAYE tax code to provide the additional higher rate relief. Contact HMRC directly. This delivers the relief through a reduction in monthly tax deductions rather than a lump sum at year end.

Net Pay Arrangement Workplace Schemes

Some workplace pension schemes use a "net pay arrangement" rather than relief at source. Under net pay, contributions are deducted from your salary before PAYE is calculated. You automatically receive full tax relief at your marginal rate — there is no need to claim the higher rate element separately, because you are never taxed on the contributed amount in the first place.

If your workplace scheme uses net pay, your payslip will show contributions deducted before tax. The relief is delivered immediately and fully, with no self-assessment claim required.

Confirm with your employer which method your workplace scheme uses. Many larger employer schemes use net pay; most personal pension providers and SIPPs use relief at source.

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Salary Sacrifice: The Most Efficient Method

For employed higher and additional rate taxpayers, salary sacrifice is the most tax-efficient method of making pension contributions — more efficient than either net pay or relief at source.

How It Works

Under salary sacrifice, you enter into an agreement with your employer to reduce your contractual salary by an agreed amount. In exchange, your employer pays an equivalent amount (or more) into your pension. Your lower salary is the basis for PAYE calculation.

The National Insurance saving:

• You pay National Insurance on your salary (8% for most employees on earnings above £12,570 and up to £50,270; 2% above £50,270 for 2026/27, subject to any changes).
• By reducing your salary, you reduce the amount subject to NI.
• A £10,000 salary sacrifice by a higher earner with salary above £50,270 saves approximately £200 in employee NI (2% × £10,000) in addition to the income tax saving.
• The employer also saves employer NI on the sacrificed salary. The employer NI rate rose to 15% from 6 April 2025 (Budget October 2024), so the saving is £1,500 on a £10,000 sacrifice.

The Employer NI Sharing Opportunity

Many employers pass some or all of their NI saving back to the employee as an enhanced pension contribution. This is entirely at the employer's discretion and is worth exploring — it is a cost-free enhancement to the pension contribution.

For example: a £10,000 salary sacrifice. The employer saves £1,500 in NI (at the 15% rate). A generous employer might add an additional £1,000-1,500 to the pension contribution as an NI sharing arrangement. The total pension contribution becomes £11,000-11,500 at a net cost to the employee of £6,000 (post income tax and NI saving).

This arrangement is particularly common at smaller employers where the pension scheme design is flexible and the employer has genuine interest in staff retention through enhanced pension contributions.

Salary Sacrifice and Mortgage Applications

One practical consideration: salary sacrifice reduces your declared gross salary. Mortgage lenders may assess affordability on the sacrifice-reduced salary rather than your pre-sacrifice package. If you are planning a mortgage application, discuss with your mortgage adviser how to document your full remuneration package (including employer pension contributions) to ensure it is properly recognised.

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The Annual Allowance and the Tapered Annual Allowance for High Earners

For most people, the annual allowance for pension contributions is £60,000 (for the 2025/26 and 2026/27 tax years). This covers all contributions from all sources — employee, employer, and individual personal contributions — to defined contribution pensions, and is based on the "pension input amount" for defined benefit schemes.

However, for very high earners, the standard annual allowance is tapered downwards under the Tapered Annual Allowance (TAA):

The Tapering Thresholds

• Threshold income: £200,000 (income before pension contributions)
• Adjusted income: £260,000 (income including employer pension contributions)
• Where adjusted income exceeds £260,000, the standard £60,000 annual allowance is reduced by £1 for every £2 of adjusted income above £260,000
• The minimum tapered annual allowance is £10,000, reached at an adjusted income of £360,000

Example: An individual with an adjusted income of £310,000:

• Excess above £260,000: £50,000
• Annual allowance reduction: £50,000 ÷ 2 = £25,000
• Available annual allowance: £60,000 − £25,000 = £35,000

An annual allowance charge applies to contributions that exceed the available AA. The charge is at the individual's marginal rate of income tax (40% or 45%), effectively clawing back the tax relief on the excess.

Carry Forward and the Tapered Annual Allowance

Carry forward allows unused annual allowance from the previous three tax years to be added to the current year's AA, enabling a larger contribution in a single year. This can be valuable for high earners who receive a large bonus or have a windfall of income.

However, carry forward under the TAA must be used carefully:

• The carried forward allowance itself may have been tapered in prior years — you carry forward the tapered allowance, not the standard £60,000.
• If your adjusted income was above £360,000 in prior years, your carry forward from those years is £10,000 per year, not £60,000.
• Carry forward is available only from years in which you were a member of a registered pension scheme (even a deferred member counts).

Example — using carry forward: A 45% taxpayer with a tapered AA of £20,000 in 2026/27 has carried forward three years of unused allowance:

• 2023/24 (tapered to £30,000, used £0): £30,000 carried forward
• 2024/25 (tapered to £25,000, used £15,000): £10,000 carried forward
• 2025/26 (tapered to £20,000, used £10,000): £10,000 carried forward

Available in 2026/27: £20,000 (current year) + £30,000 + £10,000 + £10,000 = £70,000

A £70,000 contribution at the 45% rate saves £31,500 in income tax. The net cost of placing £70,000 in a pension is £38,500.

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The Interaction with the Personal Allowance Withdrawal

For those earning between £100,000 and £125,140, income tax is effectively 60% on that tranche of earnings — because the personal allowance (£12,570) is withdrawn at £1 for every £2 of income above £100,000. A pension contribution that reduces adjusted net income back below £125,140 (or ideally below £100,000) restores the personal allowance.

Example: An individual earning £115,000. Their personal allowance is reduced by (£115,000 − £100,000) ÷ 2 = £7,500. They have only £5,070 of personal allowance remaining. A £15,000 pension contribution (reducing adjusted net income to £100,000) restores the full £12,570 personal allowance, generating additional tax relief of £7,500 × 40% = £3,000 on top of the standard higher rate relief.

This marginal rate of effectively 60% (and the opportunity to recapture it through pension contributions) is one of the most well-known but consistently underused planning levers available to UK taxpayers earning in the £100,000-£125,140 bracket.

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Tax Relief Reclaim for Prior Years

HMRC will generally allow amendments to self-assessment returns within four years of the end of the relevant tax year. If you made personal pension contributions in 2022/23, 2023/24, 2024/25, or 2025/26 and did not claim higher rate relief through a self-assessment return (because you did not complete one, or because you omitted the pension contribution entries), you can file an amended return or write to HMRC to claim the additional relief retrospectively.

The amounts unclaimed can be substantial over multiple years. A 40% taxpayer who contributed £20,000 gross per year to a personal pension for four years without claiming higher rate relief has left around £16,000 with HMRC that is legitimately theirs (£20,000 × 20% additional relief = £4,000 per year × 4 years = £16,000 — though the precise figure depends on marginal rates in each year).

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How Global Investments Can Help

At Global Investments, our financial planning team helps higher and additional rate taxpayers structure pension contributions to maximise tax efficiency — whether through personal pension contributions, salary sacrifice, carry forward planning, or the combination of pension contributions with personal allowance restoration.

We work with clients at all income levels, including those subject to the tapered annual allowance, and can refer to specialist tax advisers where complex multi-year planning or high-value analysis is required.

If you are a higher earner in the UK, or a UK national resident overseas whose UK-source income is subject to UK tax, contact us to discuss your pension contribution strategy.