Payrolling benefits in kind means taxing benefits like company cars and medical cover through your payroll each period, instead of reporting them on a P11D after the year ends. It spreads the tax across the year, is clearer for your employees, and removes much of the year-end scramble. It is also the way HMRC is moving, with the payrolling of most benefits set to become mandatory. We register you, set the taxable values up correctly, and run it as part of your payroll, while still handling your P11D(b) and Class 1A National Insurance. This page explains what payrolling is, how registration works, which benefits are affected, and how we set it up for you.
What payrolling benefits in kind means
Most employees receive some value beyond their cash pay: the use of a company car, private medical cover, a subsidised phone, an interest-free loan. HMRC calls these benefits in kind, and because they have a real cash value they are usually taxable. The question is not whether the tax is due, but how and when it gets collected.
The traditional answer was the P11D: report each benefit after the tax year has ended, and HMRC then adjusts the employee's tax code to claw the tax back over the following year. Payrollingdoes it a different way. Instead of waiting until year end, you add the taxable value of the benefit into the payroll each pay period, so the income tax on it is collected in real time, alongside the tax on wages. The benefit shows on the payslip, the right tax comes off as the employee is paid, and there is no P11D for that benefit and no later tax-code correction.
For employees, payrolling is usually the fairer and clearer option: they pay the tax gradually as they enjoy the benefit, rather than being hit by a tax-code change months later that they did not expect. For employers, it removes a big chunk of the year-end P11D exercise. It is a small change in mechanics with a real difference in how smooth the year feels.
How it differs from a P11D
The easiest way to understand payrolling is to put it side by side with the P11D route it replaces.
| Point | P11D route | Payrolling |
|---|---|---|
| When tax is collected | After year end, via a tax-code change | In real time, each pay period |
| What the employee sees | A later adjustment to their code | The benefit and its tax on every payslip |
| Year-end form for the benefit | A P11D per employee | No P11D for payrolled benefits |
| Employer NIC | Class 1A, declared on the P11D(b) | Class 1A, still declared on the P11D(b) |
| When you commit | Decided at year end | Registered before the tax year starts |
The important thing to notice is the last two rows. Payrolling removes the individual P11D, but it does not remove the employer's Class 1A National Insurance or the P11D(b) that declares it. And you cannot decide to payroll a benefit halfway through the year: you register in advance. We cover both of those points in detail below.
The shift towards mandatory payrolling
Payrolling has been optional for some years, but that is changing. HMRC has set out plans to make thepayrolling of most benefits in kind mandatory, phasing out the traditional P11D route for the benefits that fall within the new rules. The aim is to bring benefits into line with how wages are already taxed and reported in real time, and to simplify the year-end position for employers.
Because the exact timing and the finer detail are being confirmed by HMRC, we describe the direction of travel rather than commit to a specific date. What is clear is that this is coming, and that employers who prepare in good time will find the change far easier than those who leave it. The sensible response is not to wait for a deadline but to get ready now:
- Move early where it makes sense. Registering to payroll voluntarily before it becomes mandatory lets you learn the process while the P11D route is still available as a fallback.
- Get your benefit data clean. Real-time payrolling needs accurate benefit values from the start of the year, so it is worth reviewing your figures now rather than at year end.
- Plan for your staff. Employees will see benefits reflected in their pay differently, so a short, clear explanation heads off questions.
- Keep an eye on the detail. The precise scope and any exceptions are still being finalised, which is exactly the sort of thing we track for you.
We keep our approach in step with HMRC's guidance as it is published, and update clients as the picture firms up, so you arrive at any deadline already comfortable with payrolling your benefits.
How registration works
Payrolling is not something you can simply start doing mid-year. To payroll a benefit, you have toregister with HMRC before the start of the tax year in which you want to payroll it. Once you are registered and the tax year has begun, the benefits you registered are taxed through the payroll from the first pay run of that year. You cannot move a benefit into payroll partway through the year; if you miss the registration window, that benefit stays on the P11D route until the next year.
That timing is the single most common trip-up, because it means the decision has to be made ahead of the year, not at year end when benefits are usually on people's minds. We plan this with you well before the tax year turns, handle the registration, and make sure the benefits you want to payroll are set up ready to go from the first run. Where the rules around registration change as mandatory payrolling is introduced, we adjust the process accordingly and keep you informed.
Which benefits are affected
Most of the benefits employers provide can be payrolled. The common ones we see include:
- Private medical and dental cover, one of the most frequently payrolled benefits.
- Company cars and vans, including the fuel benefit where fuel is provided for private use.
- Assets provided for private use, such as equipment used personally.
- Many taxable expenses and non-cash benefits that would otherwise appear on a P11D.
Some items have historically had to stay on a P11D rather than being payrolled, and the exact scope is one of the things being settled as mandatory payrolling is introduced. Rather than give you a fixed list that could go out of date, we confirm the treatment of each of your benefits individually, based on the current HMRC position, so nothing is payrolled that should not be and nothing is missed.
Class 1A National Insurance still applies
A common misunderstanding is that payrolling a benefit removes the employer's National Insurance on it. It does not. Payrolling changes how the income tax on a benefit is collected, moving it into real time, but the employer still owes Class 1A National Insurance on most benefits, and still has to declare it.
In practice that means even where you payroll your benefits, you still file a P11D(b)after the year end to report the total value of the benefits and the Class 1A National Insurance due, and you still pay that Class 1A by the usual July deadline. What disappears is the pile of individual P11D forms for the payrolled benefits, not the employer's NIC. We handle the P11D(b) and the Class 1A calculation for you as part of the service, so this part is covered whether you payroll or not. Our P11D and benefits in kind page explains Class 1A and the P11D(b) in full.
How we set it up and run it
Payrolling is straightforward once it is set up correctly, and setting it up correctly is our job. We start by reviewing every benefit your staff receive and confirming which can be payrolled and how each one should be valued. We handle the registration with HMRC ahead of the tax year, put the taxable values into your payroll so the benefit is taxed accurately from the first run, and make sure each payslip shows the benefit clearly so your staff can see what is happening.
Through the year we run the benefit alongside the rest of your payroll, and at year end we still prepare your P11D(b) and work out the Class 1A National Insurance due. As HMRC moves towards mandatory payrolling, we keep your set-up in step with the rules and prepare you for each stage, so the change is a non-event rather than a scramble.
We are a South Wales payroll bureau with more than 60 years of combined experience, and many of our clients have been with us since 2006. We are CIPP members and Chartered Accountants (ICAEW), and we are ICO registered and Cyber Essentials certified, so your benefits and your employees' data are in careful, accredited hands. If you want payrolling of benefits set up and run properly, talk to us about your payroll or see how our pricing works.