UK Employee Benefits Tax Guide 2025 — P11D & Tax-Free Benefits

June 21, 2026 • By Berly Sam Varghese, Editor

What a P11D actually reports

A P11D reports the cash value of benefits in kind — non-cash perks an employer provides on top of salary — that HMRC treats as taxable income for the employee and that attract employer Class 1A National Insurance at 15% (2026/27) on the same value. The employer files P11D and P11D(b) forms; for the 2025/26 tax year, both are due by 6 July 2026, with the Class 1A NIC payment due by 22 July.

A significant change is arriving: from April 2026, payrolling most benefits in kind becomes mandatory rather than optional, meaning tax on most benefits gets collected through payroll during the year instead of being reported afterward on a P11D — the company car charge remains an exception that can still be payrolled optionally rather than compulsorily for now.

Company cars — the benefit most people think of first

The taxable value of a company car benefit is a percentage of the car's list price, set by its CO2 emissions and (for electric and hybrid models) electric range — the Benefit in Kind (BIK) rate. For 2026/27, BIK percentages across the board rose by one percentage point, so a fully electric vehicle that was 3% moved to 4%. The maximum rate, for the highest-emission vehicles, is capped at 37% regardless of how high emissions climb beyond that point.

Other common taxable benefits

Private medical insurance paid by the employer — taxable on the premium cost, plus 15% Class 1A NIC for the employer.
Beneficial loans — an employer loan is only a taxable benefit once the total outstanding balance exceeds £10,000 at any point in the year; below that threshold, an interest-free or low-interest loan is not a benefit at all. Above it, the benefit is calculated against HMRC's official rate, set at 2.25% for 2026/27 — the taxable amount is broadly the gap between what you were actually charged and what the official rate would have charged.

Trivial benefits — genuinely tax-free, within limits

A gift or benefit costing £50 or less is entirely tax-free and needs no P11D entry at all, provided it is not cash or a cash voucher, is not a reward tied to performance or duties, and is not something the employee's contract entitles them to. Most employees face no overall annual cap on how many of these they can receive — only the £50-per-gift limit applies each time. Directors of a "close company" (broadly, one controlled by five or fewer shareholders — the majority of small UK limited companies) face an additional £300 annual aggregate cap — the equivalent of six £50 gifts across the year, not an unlimited stream of them.

Worked example

An employer gives an employee a £45 gift card at Christmas (a genuine trivial benefit) and separately provides an interest-free loan of £15,000 for a season ticket, outstanding for the whole tax year, with HMRC's official rate at 2.25%.

The £45 gift card: tax-free, no P11D entry.
The loan: £15,000 exceeds the £10,000 threshold, so it is a taxable benefit. The taxable amount is broadly £15,000 × 2.25% = £337.50 for the year (the interest that would have been charged at the official rate, since none was actually charged) — reported on the employee's P11D, with the employer separately paying 15% Class 1A NIC on that same £337.50.

Had the loan instead been £9,000 — below the £10,000 threshold — none of it would be a taxable benefit at all, regardless of the interest rate charged.

FAQ

Q: Does the £10,000 loan threshold apply per loan, or to all loans from the same employer combined? A: It is assessed against the combined outstanding balance of all beneficial loans from the same employer, not treated as a fresh £10,000 allowance for each separate loan.

Q: Can I give an employee unlimited £50 gifts tax-free? A: For most employees, yes — there is no overall annual cap, only the £50-per-gift limit. Directors of close companies are the exception, capped at £300 a year in total.

Q: Will payrolling benefits from April 2026 change how much tax I pay? A: Not the amount — it changes when it's collected (through the year via payroll rather than after the fact via a P11D adjustment), which mainly affects cash flow and timing rather than the total tax due.

Sources

Figures verified against HMRC guidance as of 30 July 2026:

gov.uk — P11D and P11D(b) filing guidance (6 July 2026 filing deadline for 2025/26, 22 July Class 1A NIC payment deadline, 15% Class 1A NIC rate for 2026/27)
gov.uk — Company car benefit (BIK) rates 2026/27 (across-the-board +1 percentage point rise; electric vehicles 3%→4%; 37% cap)
gov.uk — Beneficial loan arrangements (£10,000 combined-balance threshold; 2.25% official rate for 2026/27)
gov.uk — Trivial benefits exemption (£50 per-gift limit; no annual cap for most employees; £300 annual cap for directors of close companies)
HMRC mandatory payrolling of benefits in kind from April 2026 (company car charge remains optional to payroll for now)