Goodbye P11Ds: What the New Benefits in Kind Rules Mean for Your Business

If your business provides perks to employees—such as health insurance, a company car, or fuel—you are likely very familiar with the annual ritual of filling out P11D forms at the end of the tax year.

However, a major shake-up to this system is on the horizon. The government has released official details on a mandatory overhaul of how Benefits in Kind (BIKs) are reported and taxed.

Starting from April 2027, reporting benefits will move into the digital age and happen in real time. To help local businesses stay ahead of the game, the payroll team at Contador Accountancy has broken down exactly what is changing, when it happens, and what you need to do.

The Big Change: Real-Time Payroll Reporting (RTI)

Currently, most employers report benefits retrospectively after the tax year has already closed. Under the new rules, employers will no longer be allowed to wait until the end of the year for most benefits.

Instead, you will be required to calculate Income Tax and Class 1A National Insurance contributions (NICs) in real time, reporting and deducting them directly through your regular payroll software (Real Time Information, or RTI). This means tax is collected accurately as the benefits are received, eliminating year-end tax surprises for both you and your employees.

The Phased Timeline: A Two-Step Rollout

Recognising that this represents a major operational shift, HMRC is introducing the mandatory changes in phases to give businesses and software developers time to prepare:

• Phase 1: April 2027 From 6 April 2027, the most common everyday employee perks must be handled through monthly or weekly payroll. This initial mandatory phase covers:

  • Private medical benefits/insurance

  • Company cars and vans

  • Car and van fuel

• Phase 2: April 2028 From 6 April 2028, mandatory real-time payrolling will extend to almost all remaining benefits in kind.

• The Temporary Exceptions Because some perks are notoriously complicated to calculate on a month-to-month basis, the government has agreed to a temporary exemption. Employer-provided loans and provided living accommodation will stay outside the real-time regime for now and will continue to be reported using existing year-end processes until further notice.

Why is the Government Doing This?

The goal is modernisation and simplicity. By transitioning away from retrospective year-end adjustments, HMRC hopes to make the tax system fairer and more transparent, ensuring employees pay the right amount of tax at the right time while reducing the backlog of late-stage administrative corrections.

How Local Businesses Can Prepare

While the initial deadline is a little way off, transitioning to real-time benefit reporting requires looking at your internal processes, employee contracts, and accounting software early.

1. Audit Your Perks: Take a look at exactly what benefits you currently provide to your staff so you know what will fall into Phase 1 (April 2027) vs Phase 2 (April 2028).

2. Review Your Systems: Your internal data collection and tracking for things like company car mileage or health insurance premiums will need to happen monthly, rather than once a year.

Let Contador Accountancy Handle the Hard Work

Adapting to major HMRC legislation changes can feel daunting when you are busy running a business. The good news is that you don't have to tackle this alone.

At Contador Accountancy, our dedicated payroll specialist is already fully briefed on these upcoming changes. We can review your current benefits package, ensure your payroll systems are updated, and manage the entire real-time transition smoothly so your business remains completely compliant.

Want to make sure your payroll is ready for the future? Get in touch with the team at Contador Accountancy today to speak with our payroll specialist.