Every year

File P11D and P11D(b)

If the company gave a director or employee a benefit that is not taxed through payroll, such as a company car, a van, a loan of more than £10,000, accommodation or private medical insurance, it reports it on a P11D for each person by 6 July after the tax year, and declares the total on a P11D(b) with Class 1A National Insurance at 15%, paid by 22 July. Fileyear works out each cash equivalent and the Class 1A and files them in one submission, for the year just ended or a late one.

File P11D and P11D(b) £46.80 all in · free to prepare

Prepared for you, checked by you
Pay only when you’ve checked it
Not HMRC or Companies House

Where this sits in your company’s year

Sample year end 31 March

Is this the right return for you?

You’ll answer these when you start, before you pay anything.

The company provided the benefits itself (not through a salary sacrifice arrangement)
Nobody had more than one company car or loan at a time in the year

What’s included

Fileyear does

A P11D for each person, with cars and fuel, vans, loans, accommodation, medical and other benefits worked out
The P11D(b) with Class 1A National Insurance at 15%, including benefits taxed through payroll
The 6 July and 22 July deadlines

You do

Enter each benefit’s details
Sent to HMRC through Fileyear, with your approval, using your company’s own HMRC login

You’ll needThe company’s HMRC (Government Gateway) loginThe employer PAYE and Accounts Office references from HMRC’s letter

How it works

The benefits
For each person: their car, van, loan, accommodation, medical insurance and other benefits.
Check and submit
The cash equivalents, the total and the Class 1A to pay.

Deadlines

Deadlines
What	Due
P11D and P11D(b) for 2026-27	Filing opens 6 April 2027; due 6 July 2027
Class 1A National Insurance	22 July 2027 (paid electronically)
Copy of the P11D to each person	6 July 2027
A late P11D(b)	£100 a month for each 50 employees

Questions directors ask

When can I file the 2026-27 P11D?

HMRC takes P11Ds for 2026-27 from 6 April 2027. Fileyear holds what you enter until then. A late 2025-26 return can be filed now.

What is Class 1A?

Employer’s National Insurance on benefits, at 15% of their cash equivalent. The employee pays no National Insurance on them, only income tax through their tax code or Self Assessment.

How is a company car worked out?

Its list price (with accessories, less up to £5,000 they paid towards it) times a percentage set by its CO2 emissions, for the days it was available, less what they paid for private use. Private fuel the company paid for adds the car fuel benefit.

Guides for this filing

Benefits and expenses for directors: P11D, P11D(b) and Class 1ABenefits such as a company car or health cover go on a P11D by 6 July, with Class 1A National Insurance paid by 22 July. Payrolling starts April 2027.Checked 5 November 2026

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