Do I need to declare benefits in kind on my tax return? | 2026/27 UK Tax Guide

Clients frequently receive company cars, medical insurance, or other perks, prompting the common compliance question: Do I need to declare benefits in kind on my tax return?

The short answer depends on how the employer processes the benefit (via P11D or payrolling) and whether the individual already falls within the Self Assessment (SA) regime. The benefits code, housed in Part 3 of the Income Tax (Earnings and Pensions) Act 2003 (ITEPA), governs these rules, alongside crucial administrative updates for the 2026/27 tax year.

The 2026/27 Landscape: P11D vs Payrolling

Historically, the government intended to mandate the real-time payrolling of all benefits in kind from April 2026. However, HMRC has officially delayed this mandatory requirement until April 2027.  Consequently, the 2026/27 tax year maintains the status quo, leaving employers with two distinct reporting methods.

From April 2027, voluntary registration will not be required as employers will be mandated to report and pay both Income Tax and Class 1A National Insurance contributions on benefits in kind in real time.

1. The P11D Route (Default)

Unless an employer registers for payroll benefits, they must report them to HMRC at the end of the tax year. Under regulation 85 of the Income Tax (Pay As You Earn) Regulations 2003 (SI 2003/2682), an employer must submit a form P11D to HMRC by 7 July following the end of the tax year for each employee whose employment is subject to the benefits code.

2. The Payrolling Route (Voluntary for 2026/27)

If an employer registers to payroll benefits under Chapter 3A of the PAYE Regulations, the tax is collected in real-time through the employee’s payroll. The regulation 85 P11D requirement falls away for these specific benefits.  Instead, under regulation 61M, the employer must provide the employee with a written statement by 1 June following the tax year, detailing the specified benefits and their cash equivalent.

Declaring Benefits on the Self Assessment Tax Return

If an individual already submits a Self Assessment tax return (for example, due to rental income, self-employment, or the High Income Child Benefit Charge), they must ensure their benefits in kind are accurately reported.

For P11D Benefits: The individual must declare the exact figures from their P11D form in the “Employment” pages (SA102) of their tax return.  If an individual does not normally file a tax return, HMRC will usually collect the tax owed by adjusting their PAYE tax code (issuing a P2 notice) based on the employer’s P11D submission.

For Payrolled Benefits: Because payrolled benefits are processed in real-time, their value is already included in the taxable pay figure on the employee’s P60. Therefore, the individual does not declare them again in the separate benefits section of the SA102.

The Student Loan Exception: A critical nuance exists for individuals repaying student or postgraduate loans. Student loan deductions are not due on payrolled benefits in kind that are subject only to Class 1A National Insurance Contributions (NICs).  Previously, the Self Assessment system could not distinguish these benefits from regular PAYE income, leading to over-calculated loan deductions.  To resolve this, taxpayers must enter the value of these specific payrolled benefits into the designated Self Assessment box titled “Payrolled benefits included in pay from employer which affect your student loan repayments”.

Statutory Exemptions (Non-Reportable Benefits)

Certain employer-provided benefits are statutorily exempt from income tax. Neither the employer nor the employee needs to declare these on a P11D or a tax return.

1. Trivial Benefits (s 323A ITEPA 2003): An employer can provide a benefit entirely tax-free if it meets strict conditions. The cost of providing the benefit must not exceed £50, it cannot be cash or a cash voucher, it must not be a contractual entitlement, and it cannot be a reward for specific employment services.  For close companies, benefits provided to a director (or their family/household members) are capped at an annual exempt amount of £300.
2. Mobile Phones (s 319 ITEPA 2003): The provision of one mobile phone per employee for private use is completely exempt.  This exemption covers the phone itself, the line rental, and the cost of private calls paid by the employer.
3. Electric Vehicle Charging (s 237A ITEPA 2003): To incentivise cleaner transport, the provision of charging facilities and electricity at or near the workplace for all-electric or plug-in hybrid vehicles is exempt from being treated as a taxable benefit in kind.

Summary of 2026/27 Reporting Obligations

For completeness, practitioners should prepare clients for the mandatory payrolling transition taking effect from 6 April 2027, which will entirely replace the P11D system for most benefits. Employers should use the 2026/27 transitional year to align their payroll software and internal reporting mechanisms with real-time reporting standards.