Tax

Working From Home Tax Relief UK — Claim Back What You're Owed

How to claim tax relief for working from home in the UK. HMRC rules for employees, sole traders, and limited company directors, including simplified expenses.

Working from home has become standard for many UK workers. Whether you are employed, a sole trader, or a limited company director, there are legitimate ways to reduce your tax bill for the costs of working from home.

Who Can Claim?

Status Can Claim? Condition
Sole trader Yes Work from home for business
Limited company director Yes Company reimburses or pays allowance
Employee (required by employer) Yes Employer requires you to work from home
Employee (choose to) No Choosing to work from home is not enough
Hybrid worker Depends Can claim for days required to work from home

For Sole Traders

Option 1: Simplified Expenses (Flat Rate)

Monthly Hours Worked From Home Monthly Deduction
25–50 hours £18
51–100 hours £26
101+ hours £36

Pros: Simple, no receipts needed, easy to calculate. Cons: Usually less beneficial than actual costs.

Option 2: Actual Costs (Proportional)

Calculate the proportion of household expenses attributable to business use:

Expense Annual Cost (Example) Business Use (Example 20%) Claimable
Gas/electricity £2,000 20% £400
Council tax £1,800 20% £360
Water £500 20% £100
Broadband £400 75% £300
Home insurance £300 20% £60
Rent (if renting) £12,000 20% £2,400
Mortgage interest (NOT capital) £6,000 20% £1,200

How to calculate the proportion:

Method Calculation
By room If 1 of 5 rooms is used as an office = 20%
By time If used as office 8 hours/day = 33%
Combined Room proportion × time proportion

Simplified vs Actual: Comparison

Scenario Simplified (Full-Time) Actual (20% Proportion)
Annual deduction £432 (£36 × 12) £1,420–£4,820
Record keeping None Receipts/evidence needed
Complexity Very simple Moderate

Actual costs are almost always more beneficial for full-time home workers. Use simplified expenses if you work from home only occasionally.

For Employees

When You Can Claim

Scenario Can Claim?
Employer has no office space for you Yes
Employer requires you to work from home Yes
You live too far from the office No
You choose to work from home No
Hybrid — employer requires some home days Yes (for required days)

How to Claim (Employees)

Method Amount Evidence
Flat rate £6/week (£312/year) No evidence needed
Actual costs Proportional household costs Full records required

Tax Relief Calculation (Flat Rate)

Tax Band Weekly Relief Annual Relief
Basic rate (20%) £1.20/week £62.40/year
Higher rate (40%) £2.40/week £124.80/year
Additional rate (45%) £2.70/week £140.40/year

Claim via:

  • Self Assessment tax return (if you file one)
  • P87 form (if you do not file Self Assessment)
  • Online portal for the current and previous 4 tax years

For Limited Company Directors

Option 1: Flat Rate Payment

Component Detail
Amount Up to £6/week (£26/month)
Tax treatment Tax-free for the director; corporation tax deduction for company
Evidence needed None for this amount
How to pay Company pays director; record in accounts

Option 2: Reimbursement of Actual Costs

Component Detail
Amount Proportional share of actual household costs
Tax treatment Tax-free for director if evidenced; corporation tax deduction for company
Evidence needed Yes — detailed records, invoices, calculations
Risk HMRC may challenge if amounts seem excessive

Option 3: Rent a Room to Your Company

Component Detail
How it works You charge your company rent for use of a room
Tax treatment Rental income for you (may use Rent a Room relief up to £7,500)
Corporation tax Deductible expense for the company
Complexity Higher — needs formal licence agreement

Capital Gains Tax Warning

If you use part of your home exclusively for business:

  • That area could be subject to Capital Gains Tax when you sell
  • Private Residence Relief may not fully apply
  • Solution: Use the room for both business and personal purposes (even occasionally)

What You Cannot Claim

Cost Claimable?
Mortgage capital repayments No (interest only for sole traders)
Food and drink No
Clothing (non-uniform) No
Furniture for personal rooms No
Garden maintenance No
Repairs to non-business areas No

Equipment and Furniture

Separate from home expenses, you can claim for items bought for work:

Item Tax Treatment
Desk, chair (sole trader/company) Deductible expense
Computer, monitor Deductible expense (or capital allowance)
Stationery, printer Deductible expense
Software/subscriptions Deductible expense

For more on self-employment expenses, see our self-assessment guide and tax allowances guide.