Tax Relief for Employees and Self-Employed UK 2026/27 — What You Can Claim

Tax relief reduces how much tax you pay by allowing you to deduct qualifying costs from your taxable income. HMRC estimates billions of pounds in legitimate relief goes unclaimed every year — primarily by PAYE employees who assume they have nothing to claim.

In practice, a basic-rate taxpayer who works in a qualifying occupation, pays professional subscriptions, sometimes works from home, and donates to charity via Gift Aid could easily be entitled to £200–£400 in annual refunds they are not claiming. A higher-rate taxpayer who is not claiming additional pension relief or Gift Aid rebates through Self Assessment is almost certainly overpaying.

This hub covers all the main categories of UK tax relief available in 2026/27, who qualifies, what each is worth, and how to claim.

What Tax Relief Is — and How It Works

Tax relief is a reduction in your taxable income, not a payment from HMRC. It works by reducing the income on which tax is calculated.

A basic example: if you earn £40,000 and have £1,200 in allowable relief, you pay tax on £38,800. As a basic-rate (20%) taxpayer, that saves you £240. As a higher-rate (40%) taxpayer, the same £1,200 of relief saves £480.

This is why relief is more valuable to higher earners — and why it is especially important for those near the higher-rate threshold (£50,270) to claim everything they are entitled to.

Relief is applied in two main ways:

1. Automatically — salary sacrifice pension contributions, personal pension relief at source, Marriage Allowance where HMRC has been notified
2. By claim — the majority of employee expenses require you to actively claim through HMRC

Employee Expenses and Flat-Rate Relief

HMRC sets agreed flat-rate amounts for specific occupations where job-related expenses are common but receipts are impractical to keep. If your occupation appears on the approved list, you can claim the flat rate without any receipts.

The full HMRC approved list covers dozens of occupations. If yours is listed, claim the flat rate — there is nothing to prove and it backdates four years automatically.

Working from home: If your employer requires homeworking (it is not optional), you can claim £6/week (£312/year). At 20% that is a £62.40 tax saving; at 40% it is £124.80. Claim via your Personal Tax Account — it takes about 10 minutes.

Pension Tax Relief

Pension contributions are among the most powerful forms of tax relief available.

Relief at source (personal pensions, SIPPs): Your pension provider claims basic-rate relief directly from HMRC and adds it to your pot. You contribute £800, the pension receives £1,000.

Higher-rate and additional-rate relief: This does not happen automatically. You must claim the extra through Self Assessment (or write to HMRC if not in Self Assessment). On a £1,000 gross pension contribution:

Salary sacrifice pensions save more — contributions reduce gross pay before Income Tax and National Insurance are calculated, saving NI as well as income tax. This is typically the most tax-efficient option for employees whose employer offers it.

The annual allowance for pension contributions is £60,000 (2026/27) or 100% of earnings, whichever is lower. You can also carry forward unused allowance from the previous three tax years.

Gift Aid

Gift Aid is a relief available when you donate to registered UK charities. The charity reclaims 25p from HMRC for every £1 you donate, at no cost to you — but you must tick the Gift Aid box and confirm you have paid enough UK tax to cover the amount claimed.

Additional relief for higher-rate taxpayers: The charity claims at the basic rate (20%). If you pay 40% tax, the difference (another 20%) belongs to you. On a £500 donation with Gift Aid:

• Charity receives: £500 + £125 (basic rate reclaim) = £625
• You can reclaim via Self Assessment: 20% of £625 = £125 personal rebate
• Net cost to you: £375

If you donate regularly and pay higher-rate tax, not registering for Self Assessment and claiming this relief is a material oversight.

Marriage Allowance

Marriage Allowance allows one spouse or civil partner to transfer 10% of their Personal Allowance (£1,257 in 2026/27) to the other, reducing the higher earner’s tax bill by up to £251.40 per year.

Who qualifies:

• You are married or in a civil partnership
• One of you earns less than £12,570 (does not use their full Personal Allowance)
• The other pays Income Tax at the basic rate (earnings between £12,570 and £50,270)

The transfer is applied as a tax reduction, not a change to Personal Allowance. It can be claimed online at gov.uk and backdated up to four years — meaning a couple who qualified from 2022/23 could receive a lump sum of up to £1,005.60.

Investment-Based Tax Reliefs

For those with spare capital to invest, HMRC offers generous relief to encourage investment in early-stage businesses:

Enterprise Investment Scheme (EIS)

• 30% Income Tax relief on investments up to £1 million per year (up to £2 million in knowledge-intensive companies)
• Capital Gains Tax exemption on gains after 3 years
• Loss relief against income tax if the investment fails
• Business Relief for Inheritance Tax after 2 years

Seed Enterprise Investment Scheme (SEIS)

• 50% Income Tax relief on investments up to £200,000 per year
• Full CGT exemption on SEIS gains
• Higher-risk early-stage investments only
• 50% CGT reinvestment relief available

Venture Capital Trusts (VCT)

• 30% Income Tax relief on investments up to £200,000 per year
• Dividends are tax-free
• CGT-free on disposal after 5 years

All three schemes carry investment risk — the underlying companies may fail. The tax reliefs are structured to compensate for that risk. Always verify EIS/SEIS/VCT status before investing.

How to Claim Tax Relief as an Employee

Option 1 — HMRC Personal Tax Account (fastest):
Log in at gov.uk, select “Check your Income Tax”, and add job expenses. HMRC adjusts your tax code within weeks, reducing future PAYE deductions.

Option 2 — P87 Form:
For employee expenses above £2,500 per year, or if you prefer to claim by post, use form P87. Backdate by completing a separate form for each tax year you want to claim.

Option 3 — Self Assessment:
If you are already in Self Assessment, include relief claims in the employment section of your return. Backdated years require amended returns.

Option 4 — Write to HMRC:
For Marriage Allowance, higher-rate pension relief if not in Self Assessment, or unusual situations, write to HMRC with supporting documentation.

The Four-Year Backdate Rule

Most PAYE relief claims can be backdated four full tax years. The current window (from 2026/27) covers:

Do not delay 2022/23 claims — if you miss 5 April 2027, that year’s refund is gone permanently. Once a year falls outside the four-year window, HMRC will not accept it.

Guides in This Cluster

• Tax Relief Guide UK — Every Tax Break You Should Be Claiming
• Uniform Tax Relief Guide
• Tax Relief on Work Travel Expenses
• Professional Subscriptions Tax Relief
• Union Membership Tax Relief
• Tax Relief on Glasses for Work
• Tax Relief on Self-Funded Training
• Tax Relief on Professional Indemnity Insurance
• Gift Aid Explained
• Gift Aid for Higher-Rate Taxpayers
• Gift Aid — What Higher-Rate Taxpayers Need to Know
• Pension Tax Relief Guide
• How to Reclaim Pension Tax Relief from Previous Years
• Limited Company Pension Tax Relief

Related Hubs

• Employment Benefits Hub — salary sacrifice, company cars, and share schemes
• Self Assessment Hub — how to claim relief through your tax return
• Pension Tax Hub — pension contributions, annual allowance, and retirement planning
• Income Tax Hub — rates, bands, and how tax is calculated