Whether you provide broadband for staff at home, reimburse employees for their internet costs, or are simply wondering what the rules are, the tax treatment of broadband has historically been one of the more frustrating areas of employment tax. The good news is that, from 6 April 2026, things are considerably clearer.

Here is what you need to know.

What changed on 6 April 2026?

New legislation (ITEPA 2003, s 316ZA) came into effect on 6 April 2026, introducing a specific statutory exemption for reimbursed internet costs. This is a meaningful shift. Previously, HMRC applied the demanding ‘wholly, exclusively and necessarily’ test to broadband expenses — meaning that any subscription with an element of personal use was routinely disallowed on dual-purpose grounds.

From 6 April 2026, the test is different: reimbursed broadband costs are allowable if they were incurred significantly for business reasons and with only limited intended private use. That is a more workable standard for most employees working from home.

This matters for employers who have historically been happy to reimburse internet charges but reluctant to take on direct contracts with broadband providers. The new rules now offer a compliant route to reimbursement without employer and employee incurring unnecessary tax and National Insurance Contributions (NIC).

The key questions that determine the tax treatment

Whatever arrangement is in place, the PAYE treatment of broadband provision depends on four things:

• Why has the broadband been provided?
• What is it actually used for — business, personal, or a mix of both?
• Who holds the contract with the provider?
• Who pays — is the employee’s bill settled directly by the employer, reimbursed as an expense, or does the employer hold the contract entirely?

Working through these questions will determine whether an exemption applies, whether a deduction is available, or whether the benefit is taxable.

When is broadband exempt from tax and NIC?

Direct provision by the employer

A full exemption from tax and NIC is available where all of the following conditions are met:

• The broadband is required for the performance of the employee’s duties.
• The employer holds the contract with the provider and provides the service directly.
• There is no significant private use.
• The provision is not a form of reward, it exists solely to enable the employee to do their job.

The direct employer contract route has historically been the clearest path to exemption, and that remains the case.

Employer reimbursement (from 6 April 2026)

Under the new rules, reimbursement of an employee’s broadband costs can also qualify for exemption where the expenditure was incurred significantly for business reasons and private use is limited. HMRC guidance at EIM01472 acknowledges that reimbursement is now an accepted route — though employers should expect HMRC to scrutinise the business motive and the extent of private use where claims are made.

What counts as ‘significant private use’?

HMRC will accept that private use is insignificant where:

• The employer has communicated clearly, usually via a written policy, the circumstances in which private use is permitted, including any time or download limits.
• Where the employer chooses not to recover the cost of private use, that decision is a genuine commercial one (for example, where administrative recovery costs exceed the value involved, or where apportionment is genuinely impractical).

Homeworking: an additional route to exemption

A separate exemption exists for additional household costs incurred as part of formal homeworking arrangements. This is relevant to broadband where the employee is genuinely required to work from home, not simply choosing to do so.

In practice, HMRC is unlikely to draw a distinction if the only payment made is the £6 per week flat-rate homeworking allowance. But where broadband costs are reimbursed alongside other household running costs, expect HMRC to check that the rules applicable to each type of reimbursement are individually met.

What if no exemption applies?

Upgrades and new lines

Where an employee upgrades their broadband package or installs an entirely new line specifically to enable home working, the additional cost of that change (not the total ongoing subscription) can still be treated as an exempt expense. The incremental cost is clearly identifiable and directly attributable to work requirements.

Where the benefit is taxable

If no exemption applies, the provision of broadband becomes a taxable benefit and both tax and NIC will be due. The reporting requirements depend on how the arrangement is structured:

• Employee pays, employer reimburses for purely personal use: the reimbursement should be treated as salary, included in payroll, and subjected to tax and Class 1 NIC via PAYE.
• Employer holds the contract and pays the provider directly: the benefit must be reported on the P11D (section K) and Class 1A NIC (employer only) is due on the full value. The benefit can be payrolled for tax purposes.
• Employee holds the contract, employer pays the provider directly: the employer is meeting the employee’s contractual liability. The full cost goes on the P11D (section B) and Class 1 NIC applies through payroll.

The mixed-use problem

The most common complication remains broadband where there is both personal and business use — and where the package does not separately identify the two elements. If significant private use exists and the business-use portion cannot be clearly identified, the full amount is taxable. This has been a consistent feature of HMRC’s approach and the new rules do not remove the need to demonstrate a clear business purpose.

What should employers do now?

The April 2026 changes are a welcome development, but they do require employers to think carefully about their arrangements. As the new legislation beds in, HMRC’s detailed guidance in this area is likely to develop further.

We would recommend:

Reviewing any existing broadband reimbursement policies to ensure they reflect the new rules.

• Ensuring a written policy is in place if you want to rely on the ‘limited private use’ position.
• Considering whether direct employer provision remains the most straightforward route for your business.
• Speaking to your bk plus adviser if you are unsure how your current arrangements should be treated.