Self Employment

Allowable Expenses for Sole Traders

Published on January 18, 2026

As a sole trader, you can deduct certain business costs from your profit before tax. These are called 'allowable expenses'.

Common Allowable Expenses

  • Office costs: Stationery, phone bills, postage.
  • Travel costs: Fuel, parking, train or bus fares (for business travel, not commuting).
  • Clothing expenses: Uniforms, protective clothing, or costumes for actors/entertainers.
  • Staff costs: Salaries, subcontractor costs, agency fees.
  • Things you buy to sell: Stock, raw materials.
  • Financial costs: Insurance, bank charges, interest on business loans.
  • Costs of your business premises: Heating, lighting, business rates.
  • Advertising and marketing: Website costs, newspaper ads.

Working from Home

If you work from home, you can claim a proportion of your costs for things like:

  • Heating
  • Electricity
  • Council Tax
  • Mortgage interest or rent
  • Internet and telephone use

You can either calculate the exact proportion of business use or use simplified expenses (flat rates) if you work 25 hours or more a month from home.

Trading Allowance

Instead of claiming expenses, you can use the £1,000 tax-free 'trading allowance'. If your expenses are less than £1,000, this is usually the better option.