You’re a sole trader. Congratulations. As well as possibly being able to work without leaving your bed, you can claim back many of the costs you incur in the course of your business as tax write-offs.
What can I write off on my taxes as a sole trader?
You might be a journalist, a plumber, a kitchen fitter or a masseuse. Whatever flavour of sole trader you are, you’re sure to incur costs as a result of running your business.Of course, you’re taxed only on the profits that your business makes. That’s your income minus your personal allowances and expenses.That means if you turn over £60,000 and have expenses of £20,000, you’ll pay tax on only £40,000 of your sales. But make sure your expenses are necessary – while it’s cheaper to buy stuff through your business, it makes little sense if you don’t need it.Here’s our list of the main expenses you can take as tax write-offs as a sole trader.
1. Accountancy fees
Unless you’re a finance graduate, you’ll probably want to enlist a professional accountant to work out how much tax you should be paying. In fact, you might as well because sole traders can claim back the fees as a tax write-off.
2. Bank charges
That’s right. If your business account incurs overdraft fees, you have business credit-card charges, and you pay interest on business loans, you’ll be able to class them as business expenses.
3. Travel
Chances are, you have a car or van that you use at least in part for work. If you make business trips in your car, you’ll be able to at 45p per mile for the first 10,000 miles of any financial year, then 25p per mile for any distance after that.Alternatively, you can use a simplified method where you work out what proportion of your car usage has been for business. To do this, you calculate your total annual running costs, including insurance, MoT, repairs, and fuel. Next, calculate the percentage of miles you do on business and apply it to your total running cost.
Deductible travel expenses
Here’s a list of the travel expenses you can claim:
- Insurance
- Fuel
- Parking
- Breakdown cover
- Hire charges
- Repairs and servicing
- Bus, train, taxi, and airfares
- Hotel rooms
- Eating out during overnight stays
- Vehicle licence fees
You can’t claim back:
- Personal driving and travel costs
- Fines
- Commuting to work
Get yourself a handy mileage-tracking app, such as MileIQ and catch every drive accurately. Simply swipe right for business drives and left for personal drives.

4. Book and magazine subscriptions
It’s important to keep up with industry news and trends, so maybe you subscribe to Physiotherapy Monthly or Better Bathrooms. You can claim back the cost of books and magazines – just so long as they’re directly relevant to your business, obviously.
5. Business premises
Work from home? How much of your household expenses you can claim depends on the number of rooms in your home and which parts you use for business.As a sole trader working from home, you can write off a proportion of your mortgage interest, utility bills and insurance costs against tax. You can calculate this proportion by doing a rough estimate of the square footage you use, or base your calculations on the number of rooms you use and for how long.
6. Equipment
Pretty much every sole trader needs at least one computer, and the good news is that they’re tax write-offs. The same applies to other equipment – for example, if you run a riding stable, you’re going to need lots of tack and you can also claim this as a business expense.
7. Goods for resale
If you work in retail, or ‘etail’, you’ll buy goods and stock wholesale so that you can sell them on. You can claim the cost of these goods as an expense.
8. Promotion
As a sole trader, you’ll also need to promote your business. That means PR, marketing and advertising. Whether you use an agency or an individual, their fees can be written off against tax.
9. Communications
You can claim for telephone calls and texts that relate to work. However, it can be tricky keeping tabs on which calls and texts are for personal use and which for business. Some sole traders use two mobile phones – one for business and one for personal use, then submit the business-phone receipts as one entity.You can also write off a proportion of your broadband bill, although you’ll need to keep a record of the hours you spend online and how much is business and how much personal use. An alternative is to monitor usage for a week or two every quarter to get a representative figure.











