Running a small business involves many day-to-day costs. The good news is that many of these costs can be claimed as allowable expenses, which helps reduce the amount of tax you pay.
For tradespeople, freelancers, and small service businesses in the UK, understanding which expenses you can claim is an important part of managing your finances properly.
Keeping accurate records of your business expenses ensures that you only pay tax on your actual profit, not your total income.
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What Are Allowable Expenses?
Allowable expenses are costs that are wholly and exclusively used for your business.
These costs can be deducted from your business income when calculating your taxable profit.
For example:
If your business earns £40,000 in a year and you have £10,000 in allowable expenses, you would only pay tax on £30,000 of profit.
Understanding which costs qualify can make a significant difference to your tax bill.
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Tools and Equipment
Most tradespeople rely heavily on tools and equipment to carry out their work.
Typical claimable items include:
• Hand tools
• Power tools
• Safety equipment
• Protective clothing
• Small equipment used for jobs
If an item is used purely for business purposes, it is usually considered an allowable expense.
Larger equipment may sometimes need to be treated differently for tax purposes, but the cost can still usually be claimed through capital allowances.
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Materials and Job Supplies
Materials purchased for specific jobs are normally deductible as business expenses.
Examples include:
• Building materials
• Electrical components
• Plumbing supplies
• Paint and decorating materials
• Fixings and hardware
These are considered direct job costs, meaning they are part of delivering the service to the client.
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Vehicle and Travel Costs
Travel expenses are often a major cost for tradespeople.
You may be able to claim for:
• Fuel
• Vehicle insurance
• Vehicle repairs and maintenance
• Road tax
• Parking fees
• Business travel costs
If you use your personal vehicle for business journeys, you may instead claim HMRC’s simplified mileage rates, which allow you to claim a set amount per mile.
Only travel for business purposes can be claimed.
Journeys between jobs or to suppliers usually qualify, but commuting to a permanent workplace typically does not.
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Work Clothing and Protective Gear
Specialised work clothing can usually be claimed as an expense.
Examples include:
• Protective boots
• High-visibility clothing
• Safety helmets
• Protective gloves
• Specialist uniforms
However, everyday clothing cannot normally be claimed, even if you wear it for work.
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Insurance
Many trades and service businesses require various forms of insurance.
Common examples include:
• Public liability insurance
• Professional indemnity insurance
• Tool insurance
• Business vehicle insurance
These are considered necessary business costs and are usually fully deductible.
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Office and Administration Costs
Even trades businesses have administrative costs.
Typical claimable expenses include:
• Accounting fees
• Business software
• Office supplies
• Printing and stationery
• Phone and internet costs used for business
• Website hosting or business tools
If you work from home, you may also be able to claim a portion of household expenses related to your business use.
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Training and Professional Development
Courses or training that improve your existing skills for your current business may be deductible.
Examples include:
• Industry training
• Certification renewals
• Safety training
• Professional courses related to your trade
Training that prepares you for an entirely new career or business activity may not qualify.
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Marketing and Advertising
Promoting your business is also an allowable expense.
Examples include:
• Website costs
• Online advertising
• Printed flyers
• Vehicle branding
• Business cards
Marketing costs are considered a normal part of running and growing a business.
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The Importance of Keeping Records
HMRC requires businesses to keep accurate financial records.
You should keep records of:
• Receipts
• Invoices
• Expense documentation
• Bank transactions
These records help support your claims if HMRC ever asks to review your accounts.
Good record-keeping also makes it much easier to complete your Self Assessment tax return.
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Staying Organised Makes Tax Time Easier
Tracking expenses throughout the year helps ensure nothing is missed and avoids a stressful rush when tax deadlines approach.
Whether you’re a tradesperson, freelancer, or small service business owner, keeping organised records of income and expenses is one of the simplest ways to manage your finances effectively.
Understanding what expenses you can claim helps reduce your tax bill and gives you a clearer picture of how your business is performing.
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⚠️ Disclaimer:
Tax rules can change and individual circumstances may vary. Always consider checking the latest HMRC guidance or speaking with a qualified accountant for advice specific to your situation.