P11D Deadline Is 6 July — Don't Miss Reporting Benefits in Kind

If your company provides perks or benefits to any employees or directors — private health insurance, a company car, an interest-free loan, or even a gym membership — you are required to report these to HMRC every year using a form called a P11D. The deadline for the 2025/26 tax year is 6 July 2026, just a few weeks away. Missing it can trigger automatic penalties, so now is the time to get organised.

What is a P11D?

A P11D is a form that employers submit to HMRC to declare the value of any benefits or non-cash perks provided to employees and directors during the tax year. It is separate from your payroll. Where your payroll deals with salaries and PAYE, the P11D covers everything else that has a monetary value and is paid for by the company but used personally.

You submit one P11D per person who received a benefit. Since April 2023, all P11D forms must be filed online — HMRC no longer accepts paper forms.

Which benefits need to be reported?

The list is broader than many small business owners expect. Common benefits in kind that must be reported include:

• Company cars made available for private use, and fuel paid for by the employer
• Private medical or dental insurance paid by the company
• Interest-free or low-interest loans totalling more than £10,000 at any point in the year
• Gym memberships or health club subscriptions
• Accommodation provided to an employee or director
• Professional subscriptions or fees paid personally but reimbursed without a proper dispensation

Some items are exempt — for example, trivial benefits worth less than £50 each (and no more than £300 per year for directors), staff parties up to £150 per head, or one mobile phone per employee. If you are unsure whether something needs reporting, it is safer to ask than to assume.

What is the P11D(b)?

Alongside individual P11D forms, you also need to submit a P11D(b) — a single summary form for the whole company. This tells HMRC the total value of all benefits provided and how much Class 1A National Insurance your company owes on them.

Class 1A NI is currently charged at 15% on the taxable value of benefits (this rate increased from 13.8% in April 2025). So if your company provided £10,000 worth of benefits during the year, you will owe £1,500 in Class 1A NI — due by 22 July 2026 if paying by BACS or online banking.

Key deadlines and what happens if you miss them

The deadlines are fixed each year and HMRC does not grant routine extensions:

• 6 July 2026 — submit all P11D forms and the P11D(b) to HMRC online
• 19 July 2026 — pay Class 1A NI if sending a cheque by post
• 22 July 2026 — pay Class 1A NI by BACS, online banking, or Faster Payments

If you file late, HMRC can charge an initial penalty of £300 per form, followed by £60 per day for each day the filing remains outstanding. Interest also applies to any unpaid Class 1A NI from the due date. These penalties are easily avoided with a bit of preparation.

What should you do right now?

Start by reviewing what your company has provided to employees or directors over the past tax year (6 April 2025 to 5 April 2026). Gather invoices or records for any potential benefits. Check whether any director loan accounts exceeded £10,000. Then speak to your accountant — or get in touch with us — to make sure everything is reported correctly and on time.