Contractor Expenses List: What You Can Claim

A good contractor expenses list is not about claiming everything you have bought during the year. It is about identifying the costs that were genuinely incurred to run your business, recording them properly and only claiming the proportion that meets HMRC rules. Get this right and you could reduce your taxable profit without creating unnecessary questions later.

For contractors, consultants, CIS workers, taxi drivers and other self-employed people, the challenge is often not the expense itself. It is proving why it was needed for work and keeping the receipt, invoice or mileage record to support it. A simple system turns that pressure into a stress-free routine.

The contractor expenses list: the basic rule

An expense is normally allowable when it is incurred wholly and exclusively for your trade. In plain English, the cost must be for business purposes rather than personal use.

This is why a work-only software subscription is usually straightforward, while ordinary clothing, your weekly food shop or a family holiday are not business expenses just because you check emails while you are away. Some costs have both business and private use. In those cases, you can usually claim only the business part.

Tax relief does not mean HMRC pays the full cost back. It means the allowable expense reduces your business profit before tax is calculated. The saving depends on your income and tax position.

Common contractor expenses you may be able to claim

The costs below are common for UK contractors, but the details matter. Your records should show the date, supplier, amount and business reason for each item.

Travel and vehicle costs

You can usually claim travel that is wholly for business, such as journeys to a temporary workplace, client meetings, training or site visits. For a sole trader using a personal car, you may claim mileage at the approved mileage rates or claim the business proportion of actual running costs. You must choose the method that is appropriate for your circumstances and keep it consistent.

A mileage log should include the date, destination, reason for travel and miles travelled. For actual vehicle costs, retain evidence for fuel, insurance, repairs, servicing, vehicle tax and breakdown cover, then work out the business percentage.

Regular travel from home to a permanent workplace is normally ordinary commuting and is not allowable. This catches many contractors out, particularly where one client site has become their established base. The rules can also be different where you work through a limited company, so it is worth checking before claiming substantial travel costs.

Tools, equipment and protective clothing

Tradespeople and CIS workers often buy tools, safety equipment and materials to complete jobs. Items such as power tools, ladders, testing equipment, hard hats, gloves, high-visibility clothing and steel-toe boots may be allowable where they are needed for your work.

Ordinary clothes are different. A smart shirt, trousers or suit may be useful for meeting clients, but it is still everyday clothing and is usually not claimable. A branded uniform or specialist protective clothing is more likely to qualify because it has a clear work purpose.

Larger equipment may not be claimed in the same way as day-to-day expenses. It may qualify for capital allowances instead. This is still valuable tax relief, but it needs to be recorded correctly rather than simply added to your general expenses total.

Mobile phone, broadband and software

Your mobile phone, home broadband and digital tools can be legitimate business costs, but only to the extent that they are used for business. If you use one phone contract for both work and personal calls, claim a fair business proportion supported by a reasonable calculation.

Common examples include accounting software, job-management apps, cloud storage, video meeting software, website hosting, domain renewals, online advertising and professional subscriptions relevant to your trade. Keep invoices rather than relying only on a bank statement, as the invoice explains what was purchased.

Home office costs

If you regularly work from home to prepare quotes, manage bookings, complete paperwork or run your business, you may be able to claim a proportion of household costs. This could include heating, electricity, council tax, mortgage interest or rent, internet and home insurance, depending on the method used.

Many sole traders prefer the simplified expenses method because it reduces admin. Others claim an apportioned share of actual costs. The best option depends on how much you work from home, the size of the costs and whether a dedicated work area is used. Do not simply divide every household bill by the number of rooms without considering private use.

Insurance, training and professional costs

Public liability insurance, professional indemnity cover and trade-specific insurance are commonly allowable. So are accountancy fees, legal fees that relate directly to the business, bank charges on a business account and payment processing fees.

Training needs a careful look. A course that updates or maintains skills you already use in your current trade can often be claimed. Training that gives you a completely new trade or qualification may not be allowable, even if it could help your career in the future.

Marketing and office costs

Business cards, branded workwear, leaflets, advertising, photography for your business, website costs and reasonable client-facing marketing spend can usually be claimed. Day-to-day office costs such as stationery, postage, printer ink and business-related printing are also normally straightforward.

Entertaining clients, suppliers or potential customers is a common exception. Even where it feels commercially necessary, client entertaining is generally not an allowable deduction for tax purposes. Staff entertaining can be treated differently, subject to the relevant conditions.

Expenses that often need extra care

Some purchases sit in a grey area because they have a genuine business connection but also a personal benefit. These are the costs to pause over before adding them to your records.

Meals are a good example. Buying lunch during a normal working day is ordinarily a personal expense. Subsistence may be possible when you are travelling for qualifying business reasons, but it is not an automatic claim. Likewise, a portion of a home utility bill may be reasonable, while claiming the entire bill usually is not.

For taxi and Uber drivers, vehicle running costs can be a major part of the business. Keep a clear record of platform commission, licensing costs, cleaning, repairs, insurance and vehicle use. However, private mileage still needs to be excluded where actual costs are claimed.

For limited company contractors, do not treat every personal payment from the company card as a business expense. The company may be able to reimburse a valid business cost, but personal spending can create bookkeeping and tax consequences. Keeping business purchases separate from personal spending is one of the simplest ways to reduce stress at year end.

How to keep records that stand up to scrutiny

You do not need a shoebox full of fading receipts. Digital records are often easier to search, safer to store and quicker to review. Take a clear photo of each receipt when you receive it, save supplier invoices and reconcile transactions regularly rather than leaving everything until your tax deadline.

For each expense, record what it was, the date, the amount, the supplier and why it related to your work. Mileage claims need their own journey log. If you apportion costs for business use, save the calculation as well as the bill.

HMRC expects you to keep business records for the required retention period, so do not delete documents as soon as a return is submitted. Good evidence is particularly valuable if a figure looks high, changes significantly from one year to the next or includes mixed business and personal use.

A simple monthly routine for contractors

Set aside a short time each month to review your transactions. Match receipts to payments, categorise costs and flag anything you are unsure about. This makes your tax return far less daunting and gives you a more accurate view of how profitable your work really is.

It also prevents missed claims. Small costs such as parking for client visits, software renewals, bank charges and stationery may seem insignificant in isolation, but they add up across a tax year. The aim is not to claim aggressively. It is to claim accurately and confidently.

If you are unsure whether an item belongs on your contractor expenses list, ask before submitting your figures. A calm review now is usually much easier than correcting a return later. For contractors and small business owners in Wallington, Sutton, Croydon and nearby areas, a no obligation consultation can help put the right record-keeping process in place, leaving you more time to focus on the work that brings income in.