Reduce your tax bill by claiming these self-employed expenses

You can subtract your self-employed expenses from your turnover when working out how much tax you need to pay each year.

But not all business expenses are allowable expenses, so it’s important to know what costs you can claim on your tax return.

This guide is specifically for sole traders and the self-employed, and can also apply to company directors. The expenses process for a limited company is slightly different.

• Understanding self-employed allowable expenses
• What expenses can I claim as self-employed?
• 5 common expenses mistakes
• Self-employed allowable expenses list
• Self-employed expenses calculator
• What Making Tax Digital means for expenses
• HMRC expenses explainer sessions
• Self-employed expenses FAQs

At a glance – what are allowable expenses for the self-employed?

HMRC has clear rules on what you can and can’t include in your tax return. The costs you can include are called ‘allowable expenses’.

Understanding which of your self-employed expenses are allowable (and calculating your profit accurately) helps make sure you pay the right amount of tax.

Calculating your tax deductible expenses means you can get immediate tax relief as it reduces the tax you owe on your business profits.

What expenses can I claim as self-employed?

When you’re completing your tax return, there are certain costs that usually count as allowable business expenses.

Office expenses, travel, marketing costs, and even business insurance all count as business expenses. Keep reading to understand how you start claiming your expenses on your tax return.

And watch the video below for some quick tips on the self-employed expenses process.

5 common expenses mistakes made by the self-employed

Office expenses

You can claim business expenses for items that you’d usually use for less than two years. This includes business stationery like:

• phone, mobile, fax, and internet bills
• postage
• stationery
• printing
• printer ink and cartridges
• computer software your business uses for less than two years
• computer software if your business makes regular payments to renew the licence (even if you use it for more than two years)

You can also include business equipment that you’ll keep for a longer time, like computers, printers, and other computer software – but you may have to claim these as capital allowances if you don’t use cash basis accounting.

Business premises

You can claim expenses for:

• rent
• maintenance and repair
• utility bills
• property insurance
• security

You can’t claim expenses for buying or building your business premises.

Can a self-employed person claim working from home allowance?

It’s also possible to claim some working from home expenses on your tax return. For example, if you’ve started a home business, you can include part of your home utility bills, but you need to work out the proportion of your home that’s used for business, and what proportion of the month it’s being used for business purposes.

The government website gives an example method of dividing the costs by the number of rooms:

• you have four rooms in the house and you use one as an office
• your electricity bill for the year is £800, and each room uses an equal amount of electricity
• you can divide the bill by four to claim £200 allowable business expenses

If you work from home at least 25 hours a month, you can use ‘simplified expenses’, which is a flat monthly rate calculated by the government.

Travel

You can claim business-related car or van costs on your tax return, including:

• vehicle insurance
• fuel
• hire charges
• daily ULEZ charges if you drive in London and other clean air zone charges in UK cities
• repairs
• servicing
• breakdown cover

Self-employed car expenses can be difficult to calculate, so you can use ‘simplified vehicle expenses’, which is a flat rate provided by the government:

You can also include business travel by train, bus, plane, or taxi, and hotel rooms and meals during overnight business trips.

Bear in mind that travel for things like meetings and site visits is included, but you can’t claim for the cost of travelling between home and work – so commuting or travelling to your business premises doesn’t count.

Also note that if you take a journey for both personal and business reasons, you must be able to separate out the business cost in order to include it.

You can’t claim for entertaining clients, suppliers and customers, or event hospitality.

Finally, if you buy a vehicle for your business and use traditional accounting, you can claim it as a capital allowance.

If you use cash basis accounting and buy a car for your business, you can claim it as a capital allowance (if you’re not using simplified expenses). You claim other types of vehicle, like vans, as allowable expenses.

Stock and materials

You can include the cost of your stock, your raw materials, and the direct costs that arise from producing your goods.

You can’t claim for goods or materials bought for private use, or depreciation of equipment.

Legal and financial costs

If you need to hire a professional like an accountant, a solicitor, a surveyor, or an architect for business reasons, you can include the cost in your calculation.

You can also include bank, overdraft and credit card charges, interest on bank and business loans, hire purchase interest, and leasing payments. Note that if you’re using cash basis accounting, you can only claim up to £500 in interest and bank charges.

If you use traditional accounting, you can claim money that you won’t receive and don’t think you’ll ever receive (bad debt). That’s because with traditional accounting, you include this debt in your turnover. But you can’t claim for:

• debts not included in turnover
• debts related to the disposal of fixed assets, for example land, buildings, or machinery
• bad debts that aren’t properly calculated – you can’t just estimate that your debts are equal to five per cent of your turnover

You can’t claim for debt in this way when using cash basis accounting, because you only record income you’ve actually received on your tax return.

Finally, you can’t claim fines for breaking the law as business expenses, or for repayments of loans, overdrafts, and finance arrangements.

Marketing

You can claim for the cost of marketing your business, including: 

• website costs
• newspaper advertising
• directory listings
• mailshots
• free samples

Clothing

You can include the cost of uniform, necessary protective clothing, or costumes for actors or entertainers, but you can’t include the cost of everyday clothing that you wear to work.

Staff costs

Employee and staff salaries count as allowable expenses, as do:

• bonuses
• pension contributions
• benefits
• agency fees
• employer National Insurance contributions
• training courses related to your business

Subscriptions

You can include the cost of membership to trade bodies or professional membership organisations if they’re relevant to your business, and the cost of subscriptions to trade or professional journals.

How to calculate self-employed allowable expenses

You need to rely on your tax records when calculating your allowable expenses – the figures will be unique to your business.

It’s a case of adding up your expenses from your bills and receipts, so it’s important that you keep them all, otherwise you might miss out on a claim.

Calculating expenses will also depend on whether you’re using cash basis or traditional accounting. Using cash basis accounting, you record expenses when you pay them. But with traditional accounting, you record expenses when you receive the bill or receipt.

When you complete your tax return, you may get the option to give a single figure for your allowable expenses or to give a detailed breakdown. If you choose to enter a single figure, you still need to work out all your expenses accurately, and keep a record of your workings in case HMRC queries your figures.

You should also keep receipts or other proofs of purchase. You don’t need to include these with your tax return, but you may need to present them if you’re subject to a tax investigation. HMRC says that you need to keep tax records for at least five years after the 31 January deadline of the relevant tax year.

Read more about how to fill in your tax return.

Making Tax Digital – what does it mean for self-employed expenses?

Making Tax Digital for income tax is being phased in from April 2026. It will impact how the self-employed manage their expenses in the following ways:

taxpayers will be required to record all their expenses digitally – this means you’ll need a digital version of all paper receipts and invoices

digital expenses must be recorded using HMRC-approved software (or using a spreadsheet and bridging software)

quarterly updates – instead of just one annual submission, taxpayers will need to send HMRC a summary of their income and expenses every three months (plus a final declaration each year)

Read more about Making Tax Digital for income tax.

HMRC allowable expenses explainer sessions

HMRC hosts free, regular ‘talking points’ meetings and webinars, designed to help tax agents get to grips with completing returns on behalf of their clients, as well as other issues. Have a look to see the range of sessions available.

Expenses for self-employed people – FAQs

What can you put down as expenses if you’re self-employed?

The expenses you claim as a self-employed person must be wholly and exclusively for your business. Here’s a list of the things you can put down as allowable expenses on your tax return:

• office expenses
• business premises
• working from home allowance
• travel
• stock and materials
• legal and financial costs
• business insurance
• marketing
• staff costs
• subscriptions

How do I claim self-employed expenses?

You claim self-employed expenses by including the cost of things used for your business (such as travel and materials) on your Self Assessment tax return. 

The cost of these expenses is then deducted from your final tax bill. It’s important to keep receipts and records of your expenses as evidence.

What expenses does HMRC accept without receipts?

There are no specific expenses that HMRC will accept without receipts. 

HMRC sets a ‘reasonable’ expectation that you may not have receipts for a small number of expenses. However, if you claim for lots of expenses without evidence it may draw attention to your tax return and could result in an HMRC investigation.

Receipts are the best evidence you can use to support your expenses. However, if you don’t have a receipt for an expense, here are some alternative types of evidence you could include:

• bank or credit card statements
• invoices, purchase orders, or order confirmations
• detailed records of purchases – including date, amount, and supplier

Can I claim food expenses if I’m self-employed?

You can generally claim food as a business expense if:

• you need to travel away from your usual place of work, for example, to an event or conference
• a business trip includes an overnight stay

Usually, you can’t claim daily lunches, meals on your usual commute, or entertaining clients at restaurants as allowable expenses. 

It’s important to make ‘reasonable’ claims, so avoid extravagant meals. All food expenses you claim must be ‘wholly and exclusively’ for business purposes.

What can I use as proof of expenses if I’m self-employed?

There are several things you can provide as proof of your expenses. These include:

• receipts 
• invoices
• bank and credit card statements
• mileage logs
• contracts
• email correspondence
• order confirmations
• detailed notes

Remember it’s important to provide as much detailed and accurate evidence as you can to support your expenses claim.

Can I claim for clothing if I’m self-employed?

Yes, there are certain types of clothing you can claim as a business expense. These include protective clothing (such as steel-toe capped boots), uniforms (such as branded workwear), and costumes that you’d wear to perform in. 

Anything that could be worn as part of an ‘everyday wardrobe’ and not used wholly or exclusively for business can’t be claimed as an expense.

Can I claim working from home expenses?

Yes, you can claim a reasonable portion of your home’s running costs, as long as they are incurred wholly and exclusively for your business.

This can be done either through simplified expenses (a flat rate based on the hours you work) or working out the actual costs.

Tax can be complicated, and you can face fines if you make a mistake on your tax return, so look at the guidelines on the government’s website and seek professional advice if you need it.

More guides to help you with your taxes

• How to amend a Self Assessment tax return
• How to register as self-employed with HMRC
• HMRC Time to Pay – how to set up an HMRC payment plan
• Is public liability insurance tax deductible?