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.
·3 min read
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: