What Expenses Can I Claim as Self-Employed? 47 Tax Deductions for UK Sole Traders
The Golden Rule: "Wholly and Exclusively"
HMRC allows you to claim expenses that are "wholly and exclusively" for business purposes. This means the expense must be necessary for running your business and not for personal use.
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47 Allowable Business Expenses
1. Office & Workspace Costs
- Home office: £6-26/week (simplified) or actual proportion
- Rent: Office or coworking space
- Business rates: If you have commercial premises
- Utilities: Electricity, gas, water (business proportion)
- Internet and phone: Business usage only
- Office supplies: Stationery, printer ink, postage
2. Travel & Vehicle Expenses
- Mileage: 45p/mile (first 10,000 miles), 25p/mile thereafter
- Public transport: Trains, buses, taxis for business trips
- Parking and tolls: Business-related only
- Vehicle insurance: Business proportion
- Fuel: Business mileage only
- Vehicle maintenance: Repairs, MOT, servicing
3. Equipment & Technology
- Computers and laptops: Full cost if under £1,000
- Software subscriptions: Adobe, Microsoft 365, etc.
- Mobile phone: Business contract or proportion
- Tools and equipment: Industry-specific tools
- Furniture: Desks, chairs (capital allowances)
4. Professional Services
- Accountancy fees: Tax returns, bookkeeping
- Legal fees: Contracts, business advice
- Bank charges: Business account fees
- Professional subscriptions: Industry memberships
- Insurance: Professional indemnity, public liability
5. Marketing & Advertising
- Website costs: Hosting, domain, design
- Social media ads: Facebook, Instagram, LinkedIn
- Google Ads: PPC campaigns
- Business cards and flyers: Printed materials
- Networking events: Tickets and attendance fees
6. Training & Development
- Courses and certifications: Relevant to your trade
- Books and publications: Industry-related
- Conferences and seminars: Professional development
7. Staff & Subcontractors
- Salaries and wages: Employee pay
- Employer NI contributions: If you have staff
- Subcontractor fees: Freelancers you hire
- Pension contributions: For employees
8. Other Allowable Expenses
- Stock and materials: Goods for resale
- Clothing: Uniforms or protective gear only
- Meals: Only when traveling overnight for business
- Interest on business loans: Not the capital repayment
- Charity donations: If business-related
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Start Free Trial →What You CANNOT Claim
- Personal clothing (unless uniform/protective)
- Commuting to your regular place of work
- Personal meals and entertainment
- Fines and penalties
- Personal gym memberships
How Much Can You Save?
Every £1,000 of expenses you claim saves you:
- Basic rate taxpayer (20%): £200 income tax + £90 NI = £290 total
- Higher rate taxpayer (40%): £400 income tax + £20 NI = £420 total
Never Miss a Deduction
Thistle's AI expense tracker ensures you claim every allowable expense. Scan receipts, auto-categorise, and maximize your tax savings.
Start 7-Day Free TrialFrequently Asked Questions
What expenses can I claim as a sole trader?
You can claim any expense that is "wholly and exclusively" for business purposes, including office costs, travel, equipment, professional fees, marketing, and more. Personal expenses cannot be claimed.
Can I claim my home office as an expense?
Yes. You can use the simplified expenses method (£6/week for 25-50 hours, £10/week for 51-100 hours, £26/week for 100+ hours) or calculate the actual proportion of your home costs used for business.
How much can I save by claiming expenses?
If you're a basic rate taxpayer (20%), every £1,000 of expenses saves you £200 in tax plus £90 in National Insurance. Higher rate taxpayers save even more.
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