Claiming Mobile Phone Expenses Through a Limited Company

Can a limited company claim mobile phone expenses?

Yes — a limited company can pay for mobile phones and claim the cost as a business expense, reducing the corporation tax it pays. More usefully, HMRC allows a company to provide one mobile phone per director or employee as a wholly tax-free benefit, provided the contract is in the company's name rather than the individual's. When done correctly, neither the company nor the individual pays tax or National Insurance on the phone or the line rental.

This is one of the few genuinely tax-free benefits HMRC offers, which is why it is worth understanding the rules precisely rather than guessing. Getting it wrong — particularly on the "one phone per person" rule and the contract-name requirement — can turn what should be a clean benefit into a taxable one.

The HMRC rule: one phone, company contract, tax-free

The exemption is set out in ITEPA 2003, section 319. The conditions for a mobile phone to qualify as a tax-free benefit in kind are:

• The contract must be between the network (or supplier) and the company — not between the network and the individual who uses the phone.
• The company must provide no more than one mobile phone per employee or director. A second phone on the same person is a taxable benefit in kind, reported on a P11D.
• The phone must be available for business use — HMRC does not require it to be used exclusively for business, unlike the general rule for most benefits.

That third point is where mobile phones differ from most other benefits: personal use of a company mobile is permitted under this exemption without creating a tax liability, as long as the other conditions (company contract, one per person) are met. The employee or director can use the phone personally and neither party incurs income tax or NI on the benefit.

Director phones vs employee phones: is there a difference?

The same rules apply to directors and employees — the section 319 exemption covers both. A director who is also an employee of their own limited company (which is the standard position for most owner-managed businesses) qualifies for one tax-free company mobile on the same basis as any other employee.

Where directors need to take extra care is around the one-phone rule. If a director's company pays for two phones — say, a personal phone on a personal contract topped up by expenses, and a separate company-contract phone — only one can be treated as the tax-free benefit. The second becomes a benefit in kind, which must be reported on a P11D and is subject to income tax and employer's Class 1A NI (currently 13.8%).

A common mistake in owner-managed businesses is reimbursing a director for a phone contract that is in the director's personal name rather than the company's. Reimbursing personal phone costs is not the same as providing a company phone: if the contract is personal, any reimbursement of line rental is taxable unless you apply the HMRC flat-rate reimbursement rules for business calls only (which require evidence of business vs personal calls).

What about VAT reclaim on business mobile contracts?

A business registered for VAT can reclaim the VAT on mobile phone costs provided through a business contract — but the rules are nuanced:

• Line rental: VAT is fully reclaimable if the phone is used exclusively for business. If there is any personal use (as there will be on most company mobiles), only the business-use proportion of the VAT is technically reclaimable. In practice, many businesses reclaim all the VAT on company mobile line rental and rely on the section 319 exemption to demonstrate a business purpose — but the precise position depends on whether you can demonstrate a reasonable business-use split.
• Handsets: VAT on handset costs is reclaimable proportionally based on business use. For handsets used entirely for business (e.g., a dedicated work phone that staff do not use personally), the full VAT is reclaimable. For mixed-use devices, you should apply a fair business/personal split — though in practice many SMEs reclaim the full VAT on a company-contract handset and document that the primary purpose is business.
• Calls: VAT on call charges is reclaimable for business calls. If itemised billing is available, reclaim the VAT on identifiable business calls. Where calls are not easily separated, a reasonable estimate based on usage patterns is acceptable — keep a note of your methodology.

The safest position is a business mobile contract in the company's name with itemised billing. That gives you the clearest basis for VAT reclaim and eliminates the ambiguity of personal contracts expensed through the business. A business mobile contract also typically costs less per line than a personal contract once VAT reclaim is factored in.

Personal use: what is actually allowed?

Under the section 319 exemption, personal use of a company mobile does not create a tax liability — neither for the company nor for the individual. This is explicitly permitted provided the conditions above are met.

However, "permitted" for tax purposes does not mean "unlimited for VAT purposes." For VAT reclaim, personal use matters. HMRC expects businesses to apply a fair split to VAT on costs that have mixed business and personal use. Many businesses address this by setting a reasonable business-use percentage — 80% business use, say — and applying that to the VAT reclaimed on line rental. There is no prescribed method; the key is that it is reasonable and consistent.

For corporation tax, the position is simpler: the cost of providing the company mobile (line rental, handset, any accessories) is deductible as a business expense regardless of personal use, because the benefit is recognised as falling within the section 319 exemption framework and the company's general trading expenses.

Record-keeping requirements

HMRC does not require extensive records specifically for company mobiles — the section 319 exemption is designed to be simple. However, good record-keeping protects the company if HMRC queries the treatment:

• Contracts in the company's name: Keep copies of the mobile contracts showing the company as the contracting party. This is the single most important document.
• One phone per person: If you provide phones to multiple employees or directors, maintain a register of who holds which device and on which contract. This demonstrates the one-per-person rule is being followed.
• Bills and payments: Standard accounting records (invoices, bank statements) showing the company paid the bills directly are sufficient.
• P11D reporting: If you provide a second phone to any individual, or if a phone contract is in personal rather than company name, report the benefit on a P11D. Failure to do so can result in HMRC assessments and penalties.
• VAT records: If you are reclaiming VAT on a partial-business-use basis, document your methodology — a simple note in your VAT return workings is sufficient.

For most small businesses with a handful of company mobiles, the record-keeping overhead is minimal. The contracts are in the company's name; the bills are paid by the company; no P11D is required. The main risk area is failing to notice when a second phone has crept onto the account or when a director is being reimbursed for a personal contract rather than billed directly through a company contract.

What counts as personal use — and does it matter?

HMRC's section 319 exemption does not define a threshold for personal use — unlike most other benefits, it does not require the phone to be used exclusively or primarily for business. Personal calls, social media, personal browsing, and non-work apps on a company mobile are all permitted under the exemption without creating a benefit in kind.

Where personal use does matter is:

• VAT reclaim: As above — apply a reasonable business-use proportion to the VAT on costs with genuine personal use.
• Data costs: If an employee is using significant company data for personal streaming or downloads, that is a policy issue (addressed through an acceptable use policy and, if needed, mobile device management controls) rather than a tax issue under the exemption.
• Second devices: Providing a personal device in addition to a company mobile — for example, paying for a director's personal phone contract as well as a company mobile — means the personal phone is a taxable benefit in kind even if it is used partly for business. The exemption covers one phone per person, not one business phone and one personal phone.

Sole traders and partnerships: the rules are different

The section 319 exemption is specific to limited companies (and other employers operating PAYE). Sole traders and partnerships cannot use this exemption because there is no employer/employee relationship to create the benefit.

For sole traders, mobile phone costs are deductible only to the extent they relate to business use. If a sole trader uses one phone for both business and personal calls, only the business proportion of the costs is deductible — in practice, this requires an estimate of business vs personal use (for example, 60% business based on a sample log of calls). The VAT position mirrors this: only the business-proportion VAT is reclaimable.

If you operate as a sole trader and are considering incorporating to a limited company, the company mobile treatment is one (small) financial benefit of incorporation — the phone moves onto a company contract, the full cost becomes a business expense, and no tax or NI arises on the benefit. It is never the primary reason to incorporate, but it is worth noting in context.

How to set up a company mobile correctly

The setup is straightforward if you follow the steps in order. If you haven't yet chosen a provider, our guide to how to choose a business mobile provider covers network coverage, pooled data, contract terms, and business support quality — all the factors to check before you sign.

1. Apply for a business mobile contract in the company's name. The company is the contracting party. The network invoices the company, and the company pays from the business bank account. This is the critical step — everything else follows from it.
2. Assign phones to named individuals and keep an internal record of who holds which device (serial number, phone number, SIM number).
3. Pay bills directly from the company. Do not have the employee pay and then reimburse them for line rental — this muddies the arrangement and may require you to treat it differently for tax.
4. Set up mobile device management if you have more than a handful of devices. MDM lets you separate company and personal data, remotely wipe a lost device, and enforce security policies without monitoring personal use.
5. Review annually: check that each person still holds exactly one company mobile, that any leavers' phones are recovered, and that new starters are added to the account rather than using personal phones expensed through the business.

A business mobile contract compared across all four UK networks typically costs less per line than an equivalent personal contract, especially once VAT reclaim is applied. If your current setup involves staff expensing personal phone bills, switching to a company contract is almost always a better financial outcome as well as a cleaner tax position.

Frequently asked questions

Can my limited company pay for my mobile phone?

Yes. If the contract is in the company's name and you are provided with one phone as a director or employee, the cost is a tax-free benefit under HMRC's section 319 exemption. The company deducts the cost as a business expense, and you pay no income tax or NI on the benefit.

Do I need to pay tax on a company mobile phone?

No, provided the conditions are met: the contract is in the company's name (not yours personally), and it is one phone per person. Personal use of the company phone is explicitly permitted under the exemption — you do not need to track or limit it to avoid a tax charge.

Can I claim VAT back on a business mobile phone?

Yes. A VAT-registered company can reclaim the VAT on business mobile contracts. For full VAT reclaim, the phone should be used exclusively for business; for mixed-use phones, reclaim a fair business-proportion of the VAT. Keep contracts and invoices in the company's name to support the reclaim.

What if the mobile contract is in my name, not the company's?

If the contract is personal, reimbursing yourself for line rental does not qualify for the section 319 exemption. HMRC treats the reimbursement differently — typically as a taxable expense unless you can apportion business calls specifically. The clean solution is to move the contract into the company's name at renewal, or set up a new business contract and transfer your number to it.

Can I claim a second phone through my limited company?

The tax-free exemption covers one phone per person. A second phone for the same director or employee is a taxable benefit in kind, reported on a P11D, and subject to income tax and employer's Class 1A NI. If a second device is genuinely necessary for business (different network coverage areas, for example), the benefit is still reportable even if the business rationale is strong.

What records do I need to keep for company mobile phones?

Keep the contracts (showing the company as the contracting party), standard accounting records of bills paid, and an internal register of which employee holds which device. If you have multiple phones on one account, the register demonstrates the one-per-person rule. No P11D is required unless you exceed one phone per person or the contract is not in the company's name.