Why is there a "Payrolled Benefit in Kind" on my payslip?

From April 2026, HMRC made a massive change to how workplace perks are taxed. Previously, if you received a Benefit in Kind (BIK) like private healthcare, HMRC would lower your tax code (e.g., from 1257L to something like 850L) to collect the tax you owed over the year.

That system is dead. HMRC has now mandated payrolling of benefits for all employers. Instead of messing with your tax code, your employer now calculates the exact monetary value of your perks every month, temporarily adds that phantom money to your payslip, taxes it, and then removes it before paying you.

If you don't understand how this works, it looks terrifying. Your gross pay looks much higher than your actual salary, and your tax deductions look unusually high. Don't panic—this is by design.

How to read a Payrolled BIK on your payslip

Let's say your standard monthly salary is £3,000, and your employer provides you with private medical insurance that costs them £100 a month. Under the new 2026 rules, your payslip will process it in three steps:

Step 1: The "Phantom" Earnings

In the Payments / Earnings column, you will see your normal salary (£3,000), plus a new line called Payrolled BIK, Notional Pay, or Medical Insurance for £100.

Your Total Gross Pay will show as £3,100. (This often panics employees because they think they are being paid an extra £100 in cash, which they aren't).

Step 2: The Tax Calculation

The payroll software now calculates your PAYE Income Tax based on the £3,100 figure. Because you are earning an extra £100 in "value" from the medical insurance, you owe 20% tax (or 40% if you are a higher earner) on that £100. Your tax deduction will be £20 higher than it used to be.

Step 3: The "Phantom" Deduction

Obviously, your employer cannot actually pay you the £100 in cash—that money already went to Bupa or the leasing company. So, in the Deductions column, you will see a line exactly matching the first one, deducting £100 back out. It might be labelled BIK Reversal or Benefit Deduction.

The net result? The £100 zeroes itself out, but you have successfully paid the £20 in tax owed on the perk in real-time.

Why did HMRC force this change in 2026?

The old P11D tax code system was notoriously broken. It relied on employers submitting paper forms at the end of the tax year. This meant employees were constantly placed on the wrong tax codes. If you got a company car in June, HMRC might not find out until the following April, resulting in a massive, unexpected tax bill that destroyed your wages for months.

Payrolling benefits means the tax is collected accurately in real-time, month by month. If you leave the company or give up the car, the tax stops immediately. It is much fairer and prevents sudden tax shocks.

Does Payrolled BIK affect National Insurance or Student Loans?

This is where it gets slightly complicated:

• Income Tax: Yes, you pay income tax on the payrolled benefit (as explained above).
• Employee National Insurance: No. You do not pay Class 1 employee NI on benefits in kind. The payroll software will exclude the "phantom" £100 when calculating your NI. (Your employer, however, pays Class 1A NI on it).
• Student Loans: No. Student loan deductions are calculated on your cash earnings, not benefits in kind.
• Pension: No. Payrolled benefits are almost never "pensionable pay."

What happens to my Tax Code now?

If your benefits are now being payrolled, your tax code should revert to the standard default code (which is 1257L for the 2026/27 tax year for most people).

If you see Payrolled BIK on your payslip, but your tax code is still heavily reduced (e.g., 340L), you are essentially being taxed twice for the same perk. You must contact HMRC immediately to have your tax code corrected to 1257L, as the employer is now handling the tax through payroll.

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