P11D and Benefits in Kind Deadlines for 2025/26
If you’re an employer in the UK, understanding your obligations around P11Ds and Benefits in Kind (BIKs) is essential to staying compliant and avoiding penalties. At Welf Accountants, we regularly help businesses navigate these requirements efficiently.
This guide covers everything you need to know about P11D reporting and key deadlines for the 2025/26 tax year.
What is a P11D?
A P11D form is used to report expenses and benefits provided to employees and directors that are not processed through payroll. These are commonly known as Benefits in Kind (BIKs).
Typical examples include:
Company cars and fuel
Private medical insurance
Interest-free or low-interest loans
Living accommodation
Gym memberships
These benefits are taxable and must be reported to HMRC annually unless they are payrolled.
What are Benefits in Kind (BIKs)?
Benefits in Kind are non-cash perks provided to employees. Although not paid as salary, they still have a monetary value and are subject to tax and National Insurance.
Employers are responsible for:
Reporting BIKs via P11D forms
Paying Class 1A National Insurance on most benefits
Key Deadlines for 2025/26
Staying on top of deadlines is crucial to avoid penalties. Here are the important dates:
6 July 2026: Deadline to submit P11D and P11D(b) forms to HMRC
6 July 2026: Deadline to give a copy of the P11D to each relevant employee
22 July 2026: Deadline to pay any Class 1A NIC (if paying electronically)
19 July 2026: Deadline to pay Class 1A NIC (if paying by post)
Do You Need to Submit a P11D?
You must submit a P11D if you provide benefits that are not included in payroll.
However, if you have registered for payrolling benefits, you may not need to submit a P11D for those items, although a P11D(b) is still required.
Common Mistakes to Avoid
Many businesses make avoidable errors when dealing with P11Ds:
Missing deadlines and incurring penalties
Incorrect valuation of benefits
Forgetting to include all employees or directors
Not submitting a P11D(b)
Failing to register for payrolling benefits properly
Working with a professional accountant can help you avoid these pitfalls.
Penalties for Late Submission
HMRC can issue penalties for late or incorrect submissions.
Interest and additional penalties may also apply for late payment of Class 1A National Insurance.
How Welf Accountants Can Help
At Welf Accountants, we support businesses with:
Accurate P11D preparation and submission
Advice on payrolling benefits
Ensuring compliance with HMRC rules
Minimising tax liabilities where possible
We take the stress out of reporting so you can focus on running your business.
Final Thoughts
P11Ds and Benefits in Kind are a key part of employer compliance in the UK. With strict deadlines and potential penalties, it’s important to stay organised and informed.
If you need assistance with your 2025/26 P11D reporting, get in touch with Welf Accountants today.
Disclaimer: The information provided in this blog is for general informational purposes only and does not constitute financial or tax advice. Before making any investment decisions or relying on any of the information provided, you should seek professional advice tailored to your specific circumstances. Welf Accountants accepts no responsibility for any losses or liabilities arising from the use of this information. Correct as of date of publication.