Payrolling Benefits in Kind: What UK Employers Need to Know Before April 2027

From 6 April 2027, payrolling benefits in kind will no longer be optional for most employers. HMRC is introducing mandatory real-time reporting for a defined set of benefits, with a second wave following a year later. The change removes the annual P11D exercise for those benefits and replaces it with tax calculated through payroll, period by period.

For payroll teams, this is not simply a compliance date to note in a calendar. It changes how benefit data is collected, how often it needs to be accurate, and how closely payroll and other departments (HR, fleet, expenses) need to work together. This article sets out what is changing, when it applies, and what organisations should be doing now to prepare.

 

What is payrolling benefits in kind, and why is it changing?

Payrolling a benefit means its taxable value is added to an employee’s pay and taxed through the normal payroll cycle, rather than being reported after the tax year ends via a P11D form. Income Tax on the benefit is collected in real time, in the same way it is for salary.

At present, payrolling benefits in kind is voluntary. Many organisations already do it for benefits such as private medical insurance, because it reduces year-end administration. From April 2027, this becomes compulsory for a specific group of benefits, and HMRC is phasing in the requirement rather than applying it to everything at once.

The phase 1 and phase 2 timeline

HMRC has confirmed a two-stage rollout following consultation with industry bodies. The table below summarises which benefits fall into each phase.

Loans and living accommodation are expected to remain on a voluntary payrolling basis even after phase 2, though organisations should confirm this against HMRC’s published guidance closer to the date, as details may still be refined.

This staged approach gives organisations more time to prepare than a single cut-off date would, but it is worth treating phase 1 as the priority. Company cars, fuel, vans, and medical benefits are common across a large proportion of UK employers, which means most payroll teams will be affected from day one.

 

Why the shift from annual to real-time reporting matters

The practical impact of this change goes beyond removing a form. It changes the rhythm of payroll work and the tolerance for delay in getting benefit data right.

An annual task becomes a recurring one

Under the current P11D system, a benefit change partway through the year, such as an employee swapping company cars, or a medical policy renewal, can be reconciled once, at year end. Under mandatory payrolling, that same change needs to be reflected in payroll promptly, because it affects the employee’s tax in that specific pay period.

A good way to think about this: an inaccurate benefit value that goes unnoticed for three months under the old system meant one correction at year end. Under real-time reporting, the same error, carried across three pay runs, means three periods of incorrect tax, each of which may need separate correction. The administrative cost of catching an error late rises considerably.

This works well for organisations with tight, well-documented processes for reporting benefit changes. However, if fleet, HR, and payroll are not already communicating changes quickly, this is the point at which gaps in that process start to show.

Reporting requirements are also being restructured

Alongside the timing change, HMRC is simplifying the technical data requirements for benefits reported through Real Time Information (RTI), the system used to report payroll data to HMRC each pay period. Draft guidance indicates a significant reduction in the number of separate data items required for benefits in kind, with software specifications due to be updated ahead of the April 2027 start date.

In practical terms, this means payroll software providers need to update their systems to match the new data requirements. It is worth asking your provider directly whether this work is already scheduled, rather than assuming it will be ready in time. Organisations using in-house payroll software should also check this is factored into their update roadmap.

 

What organisations should consider before April 2027

Preparation for mandatory payrolling of benefits in kind is as much about process as it is about software. The following areas are worth reviewing now, well ahead of the deadline:

• Which employees are affected. Identify everyone with a company car, van, fuel benefit, or employer-provided medical cover. This is your phase 1 population, and it is often larger than organisations initially expect.
• Where the data currently lives. Benefit information is frequently held across more than one system: HR records, fleet management spreadsheets, insurance providers. Confirm where each data point sits and who owns it.
• How quickly changes reach payroll. A car change, a leaver, or a new starter with a benefit needs to reach payroll in time for the relevant pay run, not weeks later.
• Whether systems already talk to each other. Manual re-keying between fleet, HR, and payroll systems increases the risk of error. Connecting these systems, where practical, removes a significant amount of that risk.
• Whether your provider’s roadmap is aligned. Ask directly whether your payroll software will support the new RTI data requirements from April 2027.

A practical example

Consider an organisation with 40 company car drivers. Under the current system, if three drivers change vehicles mid-year, the payroll team can pick this up at the P11D stage without immediate pressure. Under mandatory payrolling, each of those three changes needs to be reflected in payroll from the pay period in which it occurs, or the employee is taxed on the wrong figure. Multiply that across a larger fleet, or combine it with medical benefit renewals, and the case for a clear, fast reporting process becomes obvious.

 

Steps to prepare your payroll process now

1. Map your phase 1 benefits. Build a simple register of who has a company car, van, fuel benefit, or medical cover, and where that record is maintained.
2. Review your change notification process. Confirm how quickly HR, fleet, or benefits providers tell payroll about a change, and tighten this if there is any delay built in.
3. Check your software provider’s plans. Ask specifically about RTI changes for benefits in kind and get a date for when updates will be tested and ready.
4. Test before you need to. Where possible, run phase 1 benefits through payroll on a voluntary basis in advance, so any process gaps are found before they are compulsory.
5. Keep an eye on further guidance. HMRC has indicated that further technical detail is expected during 2026, with final guidance for phase 1 aligned to the Autumn Budget. Review HMRC’s interim guidance on the phased introduction of mandatory payrolling for benefits in kind directly, rather than relying solely on summaries, as requirements may be refined before April 2027.

For a related area already affecting payroll in 2026/27, see our guide to company car fuel benefit rates, which sits alongside this change for any organisation with a company vehicle scheme. Employers reviewing their wider RTI submission process may also find it useful to revisit how FPS and EPS reporting works, since the same reporting channel is used for payrolled benefits.

Organisations that want a broader view of how legislative changes are tracked across the payroll sector can also refer to Cintra’s payroll legislation hub, which is updated as HMRC issues further guidance.

 

Preparing your organisation for April 2027

Mandatory payrolling of benefits in kind is one of the more significant changes to UK payroll reporting in recent years, not because the calculation itself is complicated, but because it changes how often accuracy is required and how quickly information needs to move between teams. Organisations that start mapping their phase 1 benefits and tightening their change processes now will find the transition considerably more manageable than those who leave it until closer to the deadline.

If your organisation would like support reviewing your payroll processes ahead of this change, or would prefer a fully managed payroll service that keeps pace with legislative updates as they are announced, speak to our specialists at Just Payroll Services. Explore our payroll outsourcing services to see how a dedicated account team and up-to-date, HMRC-recognised software can support your organisation through phase 1 and phase 2 of this change.