10 Things You Didn’t Know You Could Claim (Self-Employed UK)

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If you are self-employed in the UK, you pay tax on your profits, not your total income. That means:

Income – Expenses = Taxable Profit

Every valid expense you forget to claim is money you are voluntarily handing over to HMRC. While everyone knows about “mileage” and “laptops,” here are 10 lesser-known or commonly missed expenses that can lower your tax bill.

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1. The “Real” Cost of Your Home Office

Many people use the HMRC “flat rate” (e.g., £10–£26 a month) because it is easy. However, if you work from home significantly, you might be missing out.

• What you can claim: You can calculate the actual business proportion of your household bills. This includes rent (or mortgage interest), council tax, electricity, and heating.
• The Rule: If you use one room of a 5-room house purely for business 20% of the time, you could claim a percentage of those total bills. It often adds up to much more than the flat rate.

2. Family Help (Staff Costs)

Do you pay your spouse, partner, or teenage child to help with admin, packing orders, or answering the phone?

• What you can claim: Their wages are a legitimate business expense.
• The Rule: You must actually pay them (money must leave your account), and the pay must be reasonable for the work done (e.g., market rate for admin, not £100/hour).

3. Training and Courses (Refresher Only)

Education is tricky, but often claimable.

• What you can claim: Courses that update or refresh your existing skills. For example, a web designer taking a course on the latest design software.
• The Catch: You generally cannot claim for training that teaches you a brand new profession or skill to start a business.

4. Trade Magazines and Subscriptions

If you pay to read about your industry, that is a business cost.

• What you can claim: Subscriptions to trade journals, professional organizations (like the Federation of Small Businesses), or necessary software subscriptions (Zoom, Adobe Creative Cloud, Xero).
• Note: This does not apply to general newspapers or gym memberships (unless you are a professional athlete).

5. Website and Marketing Costs

It isn’t just about printed flyers anymore.

• What you can claim: Domain registration fees, website hosting, email marketing tools (like Mailchimp), and even advertising on social media (Facebook/Instagram ads).
• Did you know? The cost of “free samples” you give away to potential clients is also claimable.

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6. Bad Debts

This applies if you use Traditional Accounting (accrual basis), not Cash Basis.

• What you can claim: If you have issued an invoice, included it in your turnover, but the client never paid, you can claim this as a “bad debt” expense to ensure you don’t pay tax on money you never received.

7. Bank Charges and Interest

If you have a separate business bank account (which you should!), the costs attached to it are deductible.

• What you can claim: Monthly account fees, credit card annual fees (for business cards), and interest on business loans or hire purchase agreements.

8. Protective Clothing (And Washing It!)

You generally cannot claim for everyday clothes (even a nice suit), but “work gear” is different.

• What you can claim: Uniforms branded with your logo, protective gear (steel-toe boots, high-vis jackets), or costumes for actors.
• Bonus: You can also claim the cost of laundering and repairing these specific items.

9. Hotel and Food (Subsistence)

You cannot claim for lunch everyday, but business trips are different.

• What you can claim: If you have to travel for work and stay overnight, you can claim the hotel cost and your meals (subsistence).
• The Rule: It must be outside your normal working routine. A sandwich at your desk doesn’t count; dinner while staying in a hotel for a client meeting in Manchester does.

10. Parking, Trains, and Taxis

Most people claim mileage (45p per mile) for their car, but they forget the extras.

• What you can claim: Parking tickets, toll roads, congestion charges, and train or taxi fares for business travel.
• Warning: You generally cannot claim for the commute between your home and your permanent workplace.

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Summary Table

Expense Category	Claimable	Not Claimable
Clothing	Branded uniforms, safety gear	Suits, gym kit, everyday wear
Food	Meals on overnight business trips	Daily lunch, coffee
Travel	Business trips, parking, tolls	Commuting to regular workplace
Home	% of heat, light, council tax	Buying the property (Principal)

Important Disclaimer

Rules can change. Always check the latest guidance on GOV.UK or speak to a qualified accountant before filing your tax return.

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