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Allowable expenses for sole traders: the complete list

Self-employed · Expenses

Allowable expenses for sole traders: the complete list

Every allowable expense you claim reduces your taxable profit. For a basic rate taxpayer, each £100 claimed saves £26 in Income Tax and National Insurance.

SRBy Stephen ReynoldUpdated 11 November 20263 min read
Sole trader recording allowable business expenses
In 30 seconds
  • Expenses must be wholly and exclusively for the business
  • Each £100 claimed saves a basic rate taxpayer about £26
  • Simplified expenses cover home and vehicle costs
  • You can use the £1,000 trading allowance instead of expenses

Yet many sole traders miss genuine costs, while others claim things HMRC won’t accept.

This guide lists what you can and can’t claim, explains simplified expenses and shows how to keep records that stand up.

The basic rule

A cost is allowable if it’s incurred wholly and exclusively for your business. If something is used for both business and personal purposes, such as your phone, you can claim the business proportion.

What you can usually claim

CategoryExamples
Office and adminStationery, postage, printing, software subscriptions
Phone and internetBusiness share of phone and broadband
TravelFuel or 45p mileage, train fares, parking, hotels on business trips
Stock and materialsGoods for resale and raw materials
StaffWages, pensions, subcontractors
PremisesRent, rates, utilities for business premises
Professional feesAccountant, solicitor, professional body fees
MarketingWebsite, advertising, business cards
InsurancePublic liability, professional indemnity
TrainingCourses that update existing skills
ClothingUniforms, protective clothing, costumes
Finance costsBank charges, business loan interest

What you can’t claim

  • Entertaining clients or customers
  • Everyday clothes, even if you only wear them for work
  • Commuting to a permanent workplace
  • Fines and penalties
  • Personal living costs, such as your normal lunch
  • Training for a completely new trade

Self Assessment tax calculator

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Simplified expenses

Instead of working out actual costs, you can use HMRC’s flat rates for some items.

  • Working from home: £10 a month for 25–50 hours, £18 for 51–100 hours, £26 for 101 hours or more
  • Vehicles: 45p a mile for the first 10,000 business miles in a car or van, 25p after, 24p for motorbikes
  • Living at business premises: a flat-rate deduction for private use

Once you use mileage rates for a vehicle, you must keep using them for that vehicle. See GOV.UK for full rates.

For example

A self-employed electrician earns £45,000 and claims £2,100 of van mileage, £600 of tools, £480 of phone costs and £900 of insurance. That’s £4,080 of expenses, saving about £1,060 in tax and National Insurance.

Fixed-fee accountancy support

Transparent monthly packages for sole traders, landlords and limited companies. Fixed fees agreed upfront, VAT included.

Get a fixed-fee quoteCall 0161 531 4179

Equipment and capital allowances

Larger items like laptops, tools, machinery and vans are usually claimed through capital allowances. The Annual Investment Allowance lets most businesses deduct the full cost in the year of purchase. Cars are treated differently.

Keeping records

Keep receipts or digital records for at least five years after the 31 January deadline. If you’ll be in Making Tax Digital, records must be kept in compatible software. Our self-employed accountants review your expenses so nothing is missed.

What should I do next?

Go through last year’s bank statements

Highlight every business cost.

Split mixed-use costs

Phone, broadband and vehicle.

Choose actual or simplified

Pick what gives the better result.

Get a review

Our sole trader team checks your claims.

Frequently Asked Questions

Can I claim my mobile phone?

Yes, the business proportion. If the contract is in the business name and used mainly for work, you may claim it all.

Can I claim my lunch?

Not your normal daily lunch. You can claim reasonable meals when travelling away from your usual place of work on business.

Can I claim both mileage and fuel?

No. Mileage rates cover fuel, insurance and running costs. Choose one method per vehicle.

Can I claim expenses from before I started trading?

Yes. Costs incurred up to seven years before you started can usually be treated as incurred on your first day of trading.

Can I use the trading allowance and expenses?

No, it’s one or the other. The £1,000 allowance usually suits businesses with very low costs.

Need help with this? Wingate Accountants offers fixed-fee online accountancy support across the UK. Call 0161 531 4179 or request a quote at wingateaccountants.co.uk.

SR

About the Author

Stephen Reynold
I’m Stephen Reynold, an accountant at Wingate Accountants. I work with sole traders and small companies, turning tax rules into clear, practical next steps.

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