Based on HMRC guidance

HMRC Allowable Expenses — Explained

Every expense category on SA103, explained in plain English for UK sole traders. Understand the wholly and exclusively rule, what you can claim, what you cannot, and how to keep HMRC happy.

Office & Equipment

Day-to-day costs of running your business office, including stationery, phone bills, postage and off…

SA103 box 22

Travel & Vehicles

Travel costs for business journeys — but NOT commuting to a regular workplace. If you use your own c…

SA103 box 18

Staff & Employment

If you employ staff or use subcontractors, you can claim their wages, PAYE, NI contributions, and pa…

SA103 box 17

Premises & Utilities

Rent, rates, and utilities for your business premises. If you work from home, use the home office ru…

SA103 box 20

Marketing & Advertising

Costs of promoting your business to potential customers — websites, ads, printed materials, and free…

SA103 box 23

Professional Fees

Fees paid to professionals for your business — accountants, solicitors, business consultants. Member…

SA103 box 23

Training & Education

Training costs to maintain or improve skills you already use in your business. You CANNOT claim for …

SA103 box 26

Clothing & Uniforms

Only specialist protective clothing or branded uniforms are allowable. Ordinary clothes you could we…

SA103 box 26

Food & Drink

In most cases, food and drink is NOT allowable for self-employed sole traders. The main exception is…

SA103 box 26

Stock & Materials

The cost of goods you buy to sell on, or materials used in the service you provide. For tradespeople…

SA103 box 16

Technology & Software

Software subscriptions, SaaS tools, and technology used in your business. Monthly/annual subscriptio…

SA103 box 22

Financial Costs

Bank charges, loan interest, and finance costs relating to your business. You can only claim the bus…

SA103 box 24

Home Office

If you work from home, you can claim a proportion of your household costs. HMRC offers a flat rate (…

SA103 box 20

Health & Wellbeing

Health costs are rarely deductible for sole traders. The main exception is if health is a requiremen…

SA103 box 26

Other Allowable Expenses

A catch-all for legitimate business costs that don't fit neatly elsewhere. The key test is always: w…

SA103 box 26

Information sourced from HMRC guidance. Always consult a qualified accountant for your specific circumstances. Track these expenses automatically with Get Sorted →