Can I Claim My Phone as a Sole Trader? HMRC Rules Explained (2026) 💡 Yes! but only the business-use portion (here’s how to calculate it)
Quick answer
Yes, sole traders can claim phone expenses, but only the business-use portion. If the phone is used exclusively for work, the full cost can usually be claimed. Mixed-use phones must be apportioned based on business usage.
If you would like to read more information or learn more about the pricing of business mobile phones, you can do so here .
Contents
Understanding Business Expenses for Sole Traders
Claiming Phone Expenses
Calculating Business Use
Record Keeping and Compliance
Benefits of Claiming Your Phone
Best Practices
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Authored by: Ally Cox (Business Technology & B2B Services Specialist 10+ Years’ Experience)
Reviewed by: James Ward (Telecoms Specialist, 12+ Years Experience)
Last Updated: January 2026
Key Takeaways
Sole traders can claim phone expenses, but only the portion used for business.
Business-only phones can usually be claimed in full, including handset and monthly bills.
Mixed-use phones must be apportioned based on business vs personal usage.
Accurate records are essential to remain compliant with HMRC.
Separating business and personal phones can simplify claims and reduce admin.
Understanding Business Expenses for Sole Traders As a sole trader, you can claim a range of business expenses that are necessary for the operation of your business. These expenses reduce your taxable income, thereby lowering your tax bill. Commonly claimed expenses include office supplies, travel costs, and yes, your phone. However, the key is that the expense must be “wholly and exclusively” for business use.
The UK Gov website has lots of useful information about this, which you can read here .
What You Can Claim
Phone Type What You Can Claim
Business-only phone
100% of handset & monthly bill
Mixed-use phone
Business-use percentage only
Separate SIM for work
SIM costs fully claimable
📌 HMRC rule: Expenses must be “wholly and exclusively” for business use.
Claiming Phone Expenses When it comes to claiming your phone as a business expense, there are a few scenarios to consider:
Your type of phone:
Business-only phone: If you have a phone dedicated solely to business use, you can claim the entire cost of the phone and its usage as a business expense (including the handset and monthly bills). Mixed-use phone: If you use your personal phone for both business and personal purposes, you can only claim the business portion of the expenses which requires you to calculate the percentage of usage that is for business purposes.
Your type of business:
Company-provided phones – A company can provide each employee with one mobile phone (or SIM card) without it being considered a benefit in kind, provided the contract is between the company and the supplier. Employee-arranged contracts – If an employee arranges their own phone contract, the company can pay the supplier directly (keep in mind this cost must be reported on form P11D as a benefit in kind, and the company must pay Class 1 National Insurance via the payroll).
Alternatively, if the company reimburses the employee for their monthly phone tariff, it must deduct and pay Class 1 National Insurance via the payroll, but no additional reporting is required.
For personal calls exceeding the monthly tariff, the company must deduct and pay Class 1 NI and PAYE tax through payroll. Business calls over the monthly tariff do not require NI deductions but must be reported on form P11D .
Calculating Business Use To claim the business use of a mixed-use phone, you need to keep detailed records of your phone usage. Here’s how you can do it:
Keep a log of your phone calls, messages, and data usage, noting which are for business purpose. Next, at the end of the month, calculate the percentage of business use. For instance, if 70% of your calls and data usage are for business, you can claim 70% of your phone expenses.
Record Keeping and Compliance Be sure to keep all of your monthly bills, your log/diary of business calls/data usage, and any receipts for any phone-related purchases (including repairs). This information will be essential if you are ever audited by HMRC..
Benefits of Claiming Your Phone There are definitely benefits to claiming your phone expenses , and it can end up saving you a lot of money down the line, so consider the following benefits when deciding about whether the extra administration is worthwhile for you!
By claiming legitimate business expenses, you reduce your taxable income , (potentially lowering your tax liability). A lower tax bills means that you will retain more of your earnings, which will improve your cash flow!
Claim My Phone: Best Practices Extra administration can be a bit of a headache, but it can certainly pay off, especially if you claim your phone expenses year after year. To keep yourself protected and ensure you maximise your claim while staying compliant, follow these best practices:
Separate your business and personal use – If possible, consider having a separate phone for business use. Regularly update records – Keep your records up-to-date to avoid last-minute scrambles during tax season. Consult a professional – If you’re unsure about what you can claim, consult with a tax professional.
Our Thoughts on Claiming a Phone As a Sole Trader As a sole trader, claiming your phone expenses can be a valuable way to reduce your tax burden and is definitely worthwhile, IF you do it correctly. But by understanding the rules, maintaining accurate records, and following best practices, you can ensure your claims are legitimate and beneficial – think of the time spent on administration paid back in your yearly savings. Remember, the key is to demonstrate that the expenses are necessary and proportionate to your business needs should you ever be asked to explain. Overall, we think that with diligent record-keeping and a clear understanding of the rules, you can confidently claim your phone as a business expense and enjoy the financial benefits.
Read more about claiming your phone here .
FAQs 1. Can I claim my mobile phone as a sole trader?
Yes. Sole traders can claim mobile phone expenses, but only the portion that is used for business purposes.
2. Can I claim the full cost of my phone?
You can claim the full cost only if the phone is used exclusively for business. If it’s also used personally, you must apportion the cost.
3. How do I calculate business phone usage?
You should track your business calls, messages, and data usage over a representative period and calculate the percentage used for business, which you then apply to your phone bill.
4. Can I claim the handset as well as the monthly bill?
Yes. If the phone is for business use, you may claim both the handset cost and the ongoing monthly charges, subject to business-use apportionment.
5. Do I need receipts to claim phone expenses?
Yes. HMRC requires evidence such as bills, receipts, and usage records in case your claim is reviewed.
6. Is it better to have a separate business phone?
Often, yes. A dedicated business phone simplifies record-keeping and allows you to claim the full cost without apportionment.
7. What happens if I claim incorrectly?
Incorrect claims can lead to HMRC penalties, backdated tax, or interest charges, so accurate records and reasonable calculations are essential.
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Hi, I’m Ally Cox , a senior copywriter and blogger at CompareYourBusinessCosts.co.uk, the UK’s trusted platform for comparing business services.over a decade of experience in the B2B sector, I specialise in simplifying complex topics like leased lines, VoIP, business energy, HR and payroll solutions, accounting software, and EPOS systems .HR, copywriting, and business operations- from clocking-in systems to card machines and office technology .informed, confident decisions when choosing products and services that improve efficiency and save money.
