P11D Guide 2026/27: Reporting Employee Benefits, Deadlines and Class 1A NI

If your employer provides you with benefits like a company car, private medical insurance, or a cheap loan, these must be reported to HMRC on form P11D. The P11D is one of the most important tax documents that employees receive, yet many people don't understand what it covers or how it affects their tax bill. This guide explains what goes on a P11D, the submission deadline, Class 1A National Insurance, and how the "payrolling benefits" alternative works.

What is Form P11D?

Form P11D is an HMRC return that employers must file to report non-cash benefits (benefits-in-kind) provided to employees. It's submitted annually, usually after the end of the tax year. The form details the type of benefit, the value, and the employee it was provided to.

P11D stands for "Return of Benefits in Kind" -- the "D" refers to the fact that it's supplementary to the main payroll return (form P14, now included in RTI -- Real Time Information).

If you received any taxable benefits during 2025/26, you should receive a P11D showing what was reported. For the 2026/27 tax year, any benefits you received will be reported on a P11D due by 6 July 2027.

What Benefits Must Be Reported on P11D?

Employers must report most non-cash benefits on P11D, including:

• Company cars (with fuel)
• Medical insurance (private health cover paid by employer)
• Accommodation (if employer-owned or paid for)
• Loans (interest-free or below-market-rate loans from employer)
• Relocation costs (above GBP 15,000 threshold)
• Gym memberships and health club fees
• Subscriptions (professional fees, union dues)
• Personal security (bodyguards, home security paid by employer)
• Childcare (employer-funded nursery or vouchers)
• Entertainment (tickets to events, hospitality)
• Gifts (above GBP 100 per person per year)
• Holiday homes (if provided by employer)
• Educational courses (if not for work-related skills)

Benefits that do NOT go on P11D (because they're not taxable):

• Trivial benefits (gifts under GBP 50, gifts below GBP 50 per person per year)
• Work-related training and qualifications
• Subsidised canteen meals
• Parking spaces at work
• Mobile phones (one per employee)
• Employer contributions to registered pensions
• Employer-funded childcare schemes (limited amount)
• Cycle-to-work schemes
• Eye tests and spectacles (for computer use)

The 6 July Deadline

P11D forms must be submitted to HMRC by 6 July following the end of the tax year. For the 2025/26 tax year, the deadline is 6 July 2026. For 2026/27, it's 6 July 2027.

The form must be submitted:

• On paper (hardcopy) if your employer is small (fewer than 10 employees) -- though HMRC now encourages online submission.
• Online via HMRC's filing system or through specialist payroll software (which most employers now use).

If P11D is submitted late, penalties apply:

• 1-3 months late: GBP 100 per 50 employee-beneficiary records (minimum GBP 100).
• More than 3 months late: GBP 300 per 50 records (minimum GBP 300).

An employer with one employee and one benefit (e.g., a company car) would face a GBP 100 penalty if the P11D is a day late. This incentivises timely submission.

Class 1A National Insurance

When your employer reports a taxable benefit on P11D, they must also pay Class 1A National Insurance on the benefit value. The Class 1A rate for 2025/26 is 13.8%, but from April 2026, it's increasing to 15%.

This is an employer-only charge. Unlike employee National Insurance (which you pay), Class 1A is the employer's responsibility. However, it's often factored into remuneration decisions -- if your employer is deciding whether to provide you with a benefit or a salary increase, they'll consider the 15% Class 1A charge.

Important: Class 1A is charged on the benefit value reported on P11D, regardless of the employee's tax rate.

Example: If your employer provides a company car with a GBP 4,000 benefit-in-kind value, the employer pays:

• 2025/26: GBP 4,000 × 13.8% = GBP 552 Class 1A NI
• 2026/27 onwards: GBP 4,000 × 15% = GBP 600 Class 1A NI

The increase from 13.8% to 15% (a jump of 1.2 percentage points) is one of the biggest National Insurance changes in recent years, and it's reducing the attractiveness of providing non-cash benefits to employees.

How Benefits Are Valued on P11D

The value shown on your P11D depends on the type of benefit:

P11D and Your Personal Tax Account

Once your employer submits the P11D (by 6 July), the information is fed into HMRC's records. By mid-to-late July, you should be able to see the details in your Personal Tax Account (gov.uk):

1. Log into your account
2. Select "Check your Income Tax summary"
3. Look for "Employment" or "Benefits and expenses"
4. Your P11D benefits should be listed

Check this carefully. If your employer has reported a benefit incorrectly, you should contact them to request a correction before the 6 July deadline if possible. If it's after the deadline, ask your employer to file an amended P11D.

Payrolling Benefits: The Alternative to P11D

Instead of reporting benefits on P11D (and you settling tax via Self-Assessment), many employers now use "payrolling benefits" -- which means they add the benefit value to your payroll each month and deduct tax and NI directly from your salary.

With payrolling, your employer:

1. Calculates the annual benefit value (e.g., GBP 4,000 for a company car).
2. Divides it by 12 (GBP 333/month).
3. Adds this to your gross pay each month.
4. Deducts PAYE and NI on the total (salary + benefit).
5. Does NOT need to submit a P11D for that benefit.

Advantages of payrolling:

• You see the benefit clearly on your payslip.
• Tax is taken monthly, avoiding a big bill at year-end.
• No P11D administration for the employer.
• You know your exact tax position each month.

Disadvantages:

• If the benefit value is higher than the actual cost (e.g., your company car is listed at GBP 50,000 but cost the employer only GBP 30,000), you might overpay tax.
• Some benefits can't be payrolled (e.g., accommodation, loans, entertainment).

Many larger employers now payroll company cars and medical insurance, so you may not receive a P11D for these benefits even though they're still taxable.

P11D and Self-Assessment

If your employer does submit a P11D for a benefit (rather than payrolling it), you'll usually need to file a Self-Assessment tax return to declare the benefit and settle the tax.

The process:

1. Employer submits P11D by 6 July.
2. You receive a paper copy (or can see it in your Personal Tax Account).
3. If you're not already in Self-Assessment, HMRC will invite you to file a return.
4. You file your return by 31 January (deadline for paper returns) or 31 January (online).
5. The tax on the benefit is calculated and shown on your return -- you settle it by 31 January or it's collected via your PAYE coding for the following year.

Example: Company Car P11D

Let's say you receive a company car with a GBP 50,000 list price and 150g/km CO2 emissions. Your employer doesn't payroll the benefit.

P11D value:

• GBP 50,000 (list price) × 6% (CO2 band) = GBP 3,000

Class 1A NI (employer responsibility):

• GBP 3,000 × 15% (from April 2026) = GBP 450

Your tax (as a 40% taxpayer):

• GBP 3,000 × 40% = GBP 1,200

Your employer reports the GBP 3,000 on P11D, and you include it in your Self-Assessment return, declaring GBP 1,200 additional tax owed. The GBP 450 Class 1A is the employer's cost.

Late or Missing P11D

If your employer doesn't submit a P11D by 6 July, you should:

1. Ask payroll to submit it immediately and request a copy.
2. Wait to see if it appears in your Personal Tax Account (HMRC gives employers a grace period before penalties).
3. If HMRC contacts you about a missing P11D, inform them your employer has delayed submission.

If you're in Self-Assessment and a P11D hasn't been submitted, you can file your return without it and amend it later once it arrives. However, this can trigger interest and penalties if the final assessment shows tax owed.

Penalty for Failure to Report

If an employer deliberately fails to report a benefit on P11D, penalties apply:

• Up to GBP 3,000 per unreported benefit (for deliberate concealment, penalties can be higher under new rules).
• Correction of earlier-year errors can trigger penalties if deemed deliberate.

For employees, the good news is that penalties typically fall on the employer, not you -- unless you knowingly conspired to hide the benefit, which is rare.

Key Takeaways

• P11D reports taxable benefits like company cars, medical insurance, and loans.
• Deadline is 6 July following the tax year end.
• Class 1A NI is 15% from April 2026 (up from 13.8%) -- this is the employer's cost.
• Check your Personal Tax Account in mid-July to verify benefits reported.
• Payrolling benefits (adding them to monthly payroll) is an alternative that avoids a P11D.
• If you receive a P11D, you may need to file Self-Assessment to settle the tax.
• Verify the benefit value -- if it's wrong, ask your employer to correct it before 6 July.

For more on specific benefits, see our guides on

and benefits in kind, or use our to see the impact of a reported benefit on your annual income.