For 2026/27, employees can claim £6/wk flat-rate (£312/yr) tax relief if their employer requires them to work from home. The relief is worth ~£62/yr at basic rate, ~£125/yr at higher rate. If you only sometimes work from home by choice, you don't qualify under the post-2022 rules. Self-employed people use simplified expenses (£10-£26/month based on hours) or proportional actual costs. You can backdate four years via form P87 (employees) or your tax return (self-employed).
Employee rules — 2026/27
You qualify if ALL of the following apply:
- Your job duties require you to work from home (not just allowed to)
- Your employer doesn't have appropriate facilities for you to do the job
- You're required to work from home as part of your contract OR because the job is genuinely home-based
- You're not just choosing to work from home for convenience
How much relief and what it's worth
| Your tax rate | Annual relief £6/wk × 52 | Tax saving |
|---|---|---|
| 20% basic rate | £312 | £62.40 |
| 40% higher rate | £312 | £124.80 |
| 45% additional rate | £312 | £140.40 |
You don't get £312 in your bank account — you get £312 added to your tax-free Personal Allowance, which reduces your tax bill by the rates above.
£6/wk flat vs actual costs
You can claim either:
- £6/wk (£312/yr) flat rate — easy, no evidence needed
- Actual additional costs of working from home — gas/electric/broadband proportion. Requires receipts and a reasonable apportionment method. Most employees stick with the £6/wk because itemising rarely beats it.
Actual-cost calculation
Sarah works from home 3 days/wk in a dedicated room (10% of her home's floor area). Her gas + electric bill is £180/month.
- Time apportionment: 3/7 days × 10/24 work hours = 1.79% of home use
- Floor apportionment: 10% of bill = £18/month
- Time-floor apportionment: 10% × 3/7 = 4.3% per month = £7.74/month = £93/yr
- £6/wk × 52 = £312 is much better.Take the flat rate.
Step-by-step: claiming via P87
If you don't file Self Assessment, claim using form P87.
Step-by-step: claiming via Self Assessment
If you already file SA, put the £312 (or actual amount) in SA102 box 20 ("Other expenses and capital allowances"). HMRC's automatic calculation gives you the relief.
Self-employed rules
Self-employed people don't use P87. They claim "use of home as office" on the SA103 self-employment supplementary page.
| Hours/month worked from home | Simplified rate |
|---|---|
| 25-50 hours | £10/month (£120/yr) |
| 51-100 hours | £18/month (£216/yr) |
| 101+ hours | £26/month (£312/yr) |
Or use actual costs (gas, electric, water, council tax, mortgage interest, repairs — proportional to business use). Most freelancers and sole traders find simplified is easier and HMRC enquiry risk is lower.
Backdate four years
You can claim work-from-home relief for the four previous tax years:
- 2022/23 (may qualify if home-based pre-April 2022)
- 2023/24
- 2024/25
- 2025/26
Worked example: 4-year backdated claim
Tom is a software engineer required to work fully remote since April 2022 (his employer closed its London office). He's never claimed WFH relief. As a higher-rate taxpayer:
- 4 years × £312 = £1,248 total relief on his tax-free PA
- Tax saved: £1,248 × 40% = £499 refund
- Plus ongoing £125/yr from tax code adjustment
Common mistakes
Check work-from-home eligibility
Not sure if you qualify? The "what is X" reference articles explain the BIK, P11D and salary sacrifice mechanics that interact with WFH claims.
Read about BIK and WFH →Sources and references
WFH relief rules from gov.uk/tax-relief-for-employees/working-at-home. P87 form from gov.uk P87. Simplified expenses for self-employed at gov.uk simplified expenses.
UK Tax Drag is not authorised by the Financial Conduct Authority and does not provide regulated financial or tax advice — see the content disclaimer for the full position. The methodology page documents how every guide is built and reviewed.
Other HMRC how-to guides
- How to write to HMRC — template letters
- How to check your tax code online
- How to register for Self Assessment
- Self Assessment walkthrough 2026/27
- How to claim higher-rate pension relief
- How to claim Marriage Allowance retrospectively
- How to claim work-from-home tax relief
- How to dispute a tax bill
- HMRC phone wait times + contact channels
- What to do if you can't pay your tax bill
- HMRC Response Centre (hub)
How UK Tax Drag holds itself to account
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