Working From Home Tax Relief Calculator
Instantly estimate how much UK tax relief you could claim from HMRC for working from home, using the flat rate method. Built for employees, not the self-employed.
Estimate Your Tax Relief
Enter the number of weeks you worked from home and select your income tax band to see the flat rate tax relief you could claim from HMRC, and the estimated cash value of that relief.
WFH Tax Relief Calculator
Get an instant estimate of your flat rate claim.
Understanding WFH Tax Relief
Key concepts for claiming correctly
Flat Rate vs Actual Costs
The flat rate lets you claim £6 a week with no evidence needed. Alternatively, you can claim the exact extra cost of heating, electricity and business calls, but you’ll need receipts and bills to support it.
Eligibility Criteria
You generally qualify if your employer requires you to work from home, for example because there’s no office, rather than if you simply choose to work from home for convenience.
How to Claim
If you file Self Assessment, claim it as an employment expense on your return. Otherwise, use HMRC’s online service via your Government Gateway account, or submit a postal form P87.
Backdating Claims
HMRC generally allows claims to be backdated up to four previous tax years, so it’s worth checking eligibility for each year separately before submitting.
Flat Rate Relief by Tax Band
Based on the current HMRC flat rate of £6 per week, claimed for a full 52-week tax year.
| Tax Band | Rate | Weekly Saving | Annual Saving (52 wks) | Claim Method |
|---|---|---|---|---|
| Basic Rate | 20% | £1.20 | £62.40 | |
| Higher Rate | 40% | £2.40 | £124.80 | |
| Additional Rate | 45% | £2.70 | £140.40 | |
| Scottish Starter Rate | 19% | £1.14 | £59.28 | |
| Scottish Basic Rate | 21% | £1.26 | £65.52 |
Tax Relief FAQ
Answers to the most frequently asked questions about claiming working from home tax relief in the UK.
HMRC allows employees to claim tax relief on a flat rate of £6 per week without needing to provide evidence of extra costs. This rate has applied since the 2020/21 tax year. Before that, the flat rate was £4 per week.
You can generally claim if your employer requires you to work from home, for example because your role is home-based or there is no suitable office space. If you choose to work from home voluntarily, you are usually not eligible under the current HMRC rules.
If you complete a Self Assessment tax return, you claim it as an employment expense there. If you don’t complete Self Assessment, you can claim online using a Government Gateway account or by post using form P87.
Yes, HMRC generally allows you to backdate claims for up to four previous tax years, provided you were eligible in each of those years and haven’t already claimed for them.
The flat rate method lets you claim £6 a week without evidence. The actual costs method lets you claim the precise extra amount you spent on things like heating and electricity because of working from home, but you must keep bills and calculate only the additional, work-related portion.
No. This calculator covers the employee flat rate relief. Self-employed individuals use a different HMRC simplified expenses scale based on monthly hours worked from home, which is claimed differently through their business accounts.