Work from Home Tax Relief: How to Claim Home Working Tax Relief

If your employer requires you to work from home, you may be entitled to work from home tax relief on certain additional household costs that you pay personally. This sits within the broader category of tax relief for job expenses, which also covers equipment, business mileage and professional subscriptions. However, HMRC applies strict eligibility rules, and many employees mistakenly assume that simply working remotely allows them to make a claim. For the 2026/27 tax year, relief is available only where home working is a genuine requirement of your employment and your employer does not fully reimburse the qualifying costs. Understanding these rules can help you make a correct claim while avoiding common mistakes that may lead to HMRC rejecting your application. Home working relief is one small piece of the wider Income Tax picture explained in our ultimate guide to personal tax in the UK, covering rates, allowances and reporting more broadly.

Who Can Claim Work from Home Tax Relief?

You may qualify for working from home tax relief if all of the following conditions are met:

• Your employer requires you to work from home.
• You incur additional household running costs because of that requirement.
• Your employer does not fully reimburse those costs.

Generally, you cannot claim relief if you choose to work from home under a flexible working arrangement or for personal convenience. This reflects the broader wholly and exclusively principle that HMRC applies across most employment and business expenses, not just home working costs. Likewise, if suitable office facilities are available and home working is optional, HMRC will normally refuse a claim.

Which Home Working Expenses Qualify?

HMRC’s view of what is an allowable expense here is narrow. Relief is only available for additional household costs that arise because you are required to work from home. Qualifying expenses may include:

• Additional heating and electricity.
• Business telephone calls.
• Other extra household running costs directly resulting from home working.

General household expenses that you would pay regardless of working from home, such as mortgage payments, rent, council tax or standard broadband charges, do not normally qualify unless there is an identifiable additional business cost.

Flat Rate Home Working Allowance

Rather than calculating actual household costs, eligible employees may claim tax relief based on HMRC’s flat-rate allowance of £6 per week. HMRC applies a similar flat-rate approach to work clothing and tools, offering set amounts for many occupations instead of requiring individual expense calculations. If your employer pays you up to £6 per week towards home working expenses, the payment is generally exempt from Income Tax and National Insurance. Where your employer does not reimburse you, you may be able to claim work from home tax relief on the allowance instead.

Claiming Actual Household Costs

If your additional household costs exceed the flat-rate allowance, you may be able to claim relief on the higher amount. However, you must retain evidence showing the additional costs were incurred solely because your employer required you to work from home. HMRC may ask you to provide supporting records, so it is important to keep bills, calculations and other documentation where claiming actual expenses. The same standard of evidence is expected when claiming professional fees and subscriptions, where HMRC will want proof the membership relates directly to your job.

How Much Tax Relief Will You Receive?

Tax relief is given at your marginal rate of Income Tax rather than as reimbursement of the full expense. For example, if you claim £312 of qualifying home working expenses using the flat-rate allowance:

• A basic-rate taxpayer receives relief at 20%.
• A higher-rate taxpayer receives relief at 40%.
• An additional-rate taxpayer receives relief at their applicable marginal rate.

The value of your relief therefore depends on both the amount of qualifying expenses and your Income Tax band. The same principle applies to business mileage using your own vehicle, where the tax saving reflects your marginal rate rather than a flat reimbursement.

How to Claim Work from Home Tax Relief

If you do not complete a Self Assessment tax return, you can normally claim HMRC work from home tax relief through your Personal Tax Account or by contacting HMRC. If you already submit a Self Assessment return, the claim should normally be included within your employment expenses on the tax return. HMRC generally allows eligible claims to be backdated for up to four previous tax years, provided the statutory time limits are met. Self-employed individuals working from home follow a different process entirely, since their claim forms part of the wider range of costs you can claim back when self-employed rather than a personal employment claim.

Common Mistakes to Avoid

• Claiming when working from home is voluntary.
• Claiming ordinary household bills that would have been incurred anyway.
• Assuming temporary COVID-19 home working rules still apply.
• Failing to retain evidence when claiming more than the flat-rate allowance.
• Claiming expenses that have already been reimbursed by your employer.

These principles around genuine necessity and evidence apply just as strongly to other employment claims, such as training tax relief, where HMRC also expects a clear connection to your current role.

Making a Successful Home Working Tax Relief Claim

Work from home tax relief is available only where HMRC’s conditions are satisfied. Before submitting a claim, ensure that home working is required by your employer, that you have incurred qualifying additional household costs and that you have not already received reimbursement. Keeping accurate records and understanding the current 2026/27 HMRC rules will help ensure your claim is processed correctly and reduce the risk of unnecessary enquiries or rejected claims. Not every work-related cost follows the same logic, though the taxation of entertainment expenses, for example, is governed by much stricter and largely separate rules.

Work from Home Tax Relief Case Study

Rachel, an administration manager, visited our Fulham Broadway office after her employer introduced a permanent home-working arrangement that required her to work remotely several days each week. Although she had been paying higher heating and electricity bills and making business telephone calls from home, her employer did not reimburse these additional costs. Rachel wanted to know whether she qualified for work from home tax relief and how she should make a claim.

After reviewing her employment arrangements, we explained that HMRC only allows relief where working from home is a genuine requirement of the job rather than a personal choice. Because Rachel met the eligibility conditions, we outlined the difference between claiming the £6 weekly flat-rate allowance and claiming actual additional household costs where sufficient evidence is available. We also advised her on the records she should retain to support any future HMRC enquiry.

During the meeting, Rachel mentioned that several colleagues worked from home under flexible working agreements. We explained that voluntary home working does not normally qualify for relief, even if employees incur similar household costs.

By the end of the consultation, Rachel understood how to claim the correct amount of home working tax relief, the importance of keeping supporting evidence, and how following HMRC’s rules would help avoid rejected claims.