Benefits & Government

WFH Tax Relief Calculator UK

If you work from home, HMRC allows you to claim tax relief on household expenses. Calculate exactly how much you can reclaim — many people are missing out on hundreds of pounds.

Working From Home Tax Relief

HMRC approved flat-rate or actual cost method

Calculation Method

Flat rate: HMRC's simplified £6/week. Actual costs: more complex but potentially higher.

Weeks Worked at Home

Your Income Tax Rate

Estimated Tax Relief

£62.40

Expenses Claimable

£312.00

Tax Rate Applied

20%

Flat rate = £6/week × 52 weeks = £312.00 claimable annually.

How to Claim

Via your employer: Ask them to pay you £6/week tax-free (no receipt needed).

Via HMRC online: Claim directly at gov.uk for the current and previous 4 tax years.

Via Self Assessment: Include WFH expenses in your annual tax return.

If COVID-forced WFH: Full year relief was available for 2020/21 and 2021/22.

FAQs

Who can claim WFH tax relief?

Employees who are required to work from home (not by choice) are eligible. Since 2022/23, HMRC has returned to pre-COVID rules — you must be required to WFH, not just choosing to.

How many years can I backdating my claim?

You can backdate claims for up to 4 tax years. So in 2024/25, you could claim back to 2020/21.

What does the flat rate cover?

The £6/week flat rate covers heating, electricity, and internet costs proportional to your work area. You don't need receipts.

Can I claim if my employer pays me WFH allowance?

If your employer already pays you up to £6/week tax-free, you cannot claim additional relief from HMRC. If they pay less, you can claim the difference.