P11D Form: What’s On It and When You Get It

A P11D form records the taxable benefits your employer provided during a tax year, things like a company car, private medical cover or a low-interest loan. Your employer files it with HMRC and gives you a copy by 6 July. HMRC then uses those figures to adjust your tax code.

Timing is what makes the form matter. Benefits get reported after the tax year has finished, so for most of the year HMRC is working from an estimate of what you received rather than the real figure. That gap is where problems start.

A company car you handed back in November can sit in your tax code long after it has gone, quietly costing you money every payday.

There’s a bigger change coming, too. The P11D is being phased out. From April 2027 most benefits move into payroll and get taxed as you receive them, and the form survives only for a shrinking list of exceptions. If you’re reading this in 2026, you’re near the end of the old system.

What a P11D form shows

Every taxable benefit you received from your employer, valued in pounds. HMRC calls these benefits in kind: things given to you because of your job that aren’t salary and aren’t cash.

The form runs to fourteen lettered sections, A to N, though only a handful are filled in on a typical form:

• Section F covers cars and car fuel, which is the P11D benefits in kind entry that draws the most attention.
• Section I covers private medical treatment or insurance, so P11D medical insurance premiums land here.
• Section H covers beneficial loans, meaning a low-interest or interest-free loan from your employer.
• Section D covers living accommodation provided as part of the job.
• Section M is the catch-all for other items, including subscriptions and professional fees.

The remaining sections deal with assets transferred to you, payments made on your behalf, vouchers and credit cards, mileage allowances, vans and van fuel, qualifying relocation costs, services supplied, assets placed at your disposal and expenses payments.

Whichever section applies, the figure shown is the cash equivalent: what the benefit is worth in HMRC’s eyes, which is not always what it cost.

Plenty of perks never reach the form at all. HMRC treats them as exempt, so there is nothing to report and nothing to tax, and GOV.UK sets out the conditions that each one has to meet:

• Trivial benefits costing £50 or less each, provided they aren’t cash, aren’t a reward for work and aren’t written into your contract.
• One mobile phone per employee, even where you use it privately.
• Annual social events open to all staff, as long as the combined cost stays at £150 or less a head across the tax year.
• Workplace parking, and meals in a staff canteen available to everyone.

The £150 figure is a cliff edge rather than an allowance, and that can catch taxpayers out. HMRC’s booklet 480 guidance on non-taxable benefits states that it is not an annual allowance: where the total cost a head across the year goes above £150, only the functions adding up to £150 or less escape tax.

Directors of close companies have a further limit of £300 of trivial benefits across the tax year, however many separate £50 gifts make it up.

Who gets a P11D and when it should arrive

Anyone who received a taxable benefit. There is no salary threshold and has not been since 6 April 2016, when the old £8,500 earnings limit and the separate P9D form were both abolished. If you come across the £8,500 figure elsewhere, it applies to 2015/16 and earlier years only.

The timetable is fixed and the tax year ends on 5 April. Your employer then has until 6 July to file with HMRC and to hand you your copy.

The P11D employee copy deadline is the same date as the filing one, so if mid-July arrives and nothing has appeared, your employer is late rather than simply slow.

Not everyone with benefits gets a form. Where an employer has registered to payroll benefits, the tax comes out through your payslip as you go and no P11D is issued for those items.

You should still be told the value of what you received.

Nothing arrived at all? Ask your payroll department (nicely) for a copy, since they are the ones who produced it. GOV.UK guidance says you can ask your employer for a record of what was reported, including how much each benefit is worth, and that if they cannot give you one you should contact HMRC. A personal tax account or the HMRC app will also show the benefit details held against your record, though neither produces a duplicate form.

What to do if your benefits look wrong

Check the figures before you file the form away. If the P11D is wrong, your tax will be wrong too, and the error tends to persist until somebody notices it.

Company health cover is usually easy to verify: the figure should match the premium your employer paid. Cars are fiddlier, because the taxable value depends on list price, CO2 emissions, fuel type and how long the car was available to you. HMRC publishes a company car and fuel benefit calculator that does the arithmetic, and the company car tax guide works through the bands in more detail.

Raise anything that looks off with payroll first. An amended P11D can be submitted. Where the figure has already fed into your tax code, contact HMRC directly so your PAYE record can be corrected.

This is where refunds come from. Overpayments follow a handful of recognisable patterns:

• The benefit stopped, nobody told HMRC, and it stayed in your tax code.
• The benefit shrank, perhaps a cheaper car or a downgraded policy, and the code never caught up.
• HMRC estimated the value for the current year and the estimate ran high.
• Your employer applied a code that was wrong to begin with.

Any of these can be corrected for earlier years as well as the current one, so it is worth looking back rather than assuming a stale figure has already been sorted out.

How a P11D affects your tax code

Benefits are not paid in cash, so HMRC collects the tax on them by reducing your tax-free personal allowance. The value of your benefits comes off the allowance, what remains becomes your code, and your employer deducts more tax each month as a result.

A large enough benefit can wipe out the allowance completely and produce a K code.

The lag is the awkward part. Your P11D reports a year that has already ended, while your current code runs on an estimate. When estimate and reality diverge, you either underpay and get a bill, or overpay and are owed money. Do company benefits affect my tax code? sets out how the adjustment is worked out.

For anyone completing a self assessment tax return, the P11D figures go in the employment section. HMRC checks what you enter against what your employer filed, so a mismatch between the two will surface.

P11D deadlines, penalties and filing online

For employers, three dates follow the end of each tax year:

• 6 July: file the P11D and P11D(b) with HMRC, and give every affected employee their copy.
• 19 July: Class 1A National Insurance must reach HMRC if paying by post.
• 22 July: the electronic payment deadline for the same Class 1A liability.

Miss the P11D submission deadline and HMRC charges £100 for every 50 employees, for each month or part month the P11D(b) is late. Incorrect returns attract a separate penalty on top.

Paper is no longer an option. Since 6 April 2023, P11D and P11D(b) submissions, amendments included, must go through HMRC’s PAYE Online service or commercial payroll software.

PAYE Online handles up to 500 returns. Paper forms sent in after that date are rejected rather than processed, which is the practical answer to how to submit P11D online: there is no longer an alternative.

Directors count as employees here. A director who receives a taxable benefit needs a P11D like anyone else, and directors of close companies have that £300 annual trivial benefits cap to track alongside it.

Do you need to file at all? Only where you provided benefits that were neither payrolled nor exempt. One trap catches small companies out: payrolling removes the P11D, not the P11D(b). The Class 1A return is still due.

P11D vs P11D(b): what the difference is

Two tax forms doing two jobs. The P11D is per employee and reports what each individual received. The P11D(b) is one per employer and reports the P11D Class 1A National Insurance the business owes on the total value of those benefits.

Class 1A, not Class 1. The distinction matters, because Class 1A is an employer-only charge on benefits and does not come out of your pay.

The P11D(b) goes in alongside the P11Ds by the same 6 July date. It is also the form that outlives them: an employer who payrolls every benefit still files a P11D(b) to declare and pay the Class 1A.

What replaces the P11D form from April 2027

So is the P11D being abolished? Broadly yes, but in stages rather than all at once.

HMRC guidance published on GOV.UK confirms that mandatory payrolling of benefits arrives in two phases. From 6 April 2027, company cars, car fuel, vans, van fuel and employer-provided medical benefits must be reported and taxed through payroll in real time.

From 6 April 2028, most remaining benefits follow. Beneficial loans and living accommodation stay outside the mandatory regime for now and can still be reported on a P11D.

For employees, real-time taxing closes the gap. Benefits get taxed as you receive them instead of catching up with you a year later through a tax code adjustment.

For employers, 2027/28 means running two processes side by side for a while, with some benefits payrolled and others still on a form. The Last Full P11D covers what to expect through the changeover.

Before you check your tax code

A P11D form is the record of what your employer told HMRC about your benefits, and it explains why your tax code looks the way it does. Read it when it arrives rather than filing it unopened. Check the figures against what you actually had, and against the months you actually had it.

If something does not match, payroll is the first stop and HMRC the second.

The system is changing underneath all of this, so what lands in July 2028 will look different from what landed in July 2026.

The principle holds either way: benefits are taxable, someone has to tell HMRC about them, and the figure reported is the figure you pay tax on. The guide to benefits in kind covers the wider picture.

Key takeaways

The rules, dates and figures worth keeping to hand:

• A P11D form lists the taxable benefits an employee received in a tax year, and must reach HMRC by 6 July following the 5 April year end.
• The £8,500 earnings threshold was abolished on 6 April 2016, so any employee receiving a taxable benefit can get a P11D regardless of salary.
• Employees must be given their copy by that same 6 July deadline, and can check the benefit figures HMRC holds through a personal tax account or the HMRC app.
• The P11D(b) is a separate employer return covering Class 1A National Insurance, and it stays due even when every benefit is payrolled.
• Late P11D(b) filing costs £100 per 50 employees for each month or part month, and paper submissions have been rejected since 6 April 2023.
• Mandatory payrolling begins on 6 April 2027 for cars, car fuel, vans, van fuel and medical benefits, with most other benefits following on 6 April 2028.

Common P11D form questions

GOV.UK sets out the filing rules in detail; the questions below deal with the situations either side of them.

Do I need to file a P11D if I’m the only director of my company?

Yes, where the company provided you with a taxable benefit that was not payrolled. Directors are treated the same as any other employee under the benefits rules, and being the sole director creates no exemption. A single-director company that provided a car, private medical cover, or loans with a combined balance over £10,000 at any point in the year, needs a P11D for that director.

The P11D(b) is separate and still due where there is Class 1A National Insurance to declare. The trap for small companies is assuming that no employees means no reporting obligation, when the director’s own benefits generate one.

If the company provided nothing taxable, with no car, no cover and nothing beyond exempt items, there is no P11D to file. Close company directors should also track the £300 annual cap on trivial benefits, since going over it makes the excess reportable.

What is the P11D value of a car?

The P11D value is the figure used to work out a company car benefit, and it is not the price on the invoice. It is the manufacturer’s list price including VAT, delivery and any factory-fitted options, minus the first registration fee and the first year’s vehicle excise duty.

That value is then multiplied by a percentage based on the car’s CO2 emissions and fuel type to produce the taxable benefit, and it is the benefit figure that appears on the P11D. Electric and low-emission cars carry much lower percentages, which is why two cars with similar list prices can produce very different tax bills.

A capital contribution towards the car can reduce the P11D value. The company car tax guide goes through how to calculate P11D value in more detail, including the emissions bands.

How do I get a copy of an old P11D?

Start with the employer who issued it. Payroll departments keep benefit records, and a reissued copy is normally the quickest route, even for a year or two back.

Where the employer no longer exists or will not help, GOV.UK directs you to contact HMRC, which holds the benefit information on your PAYE record. A personal tax account or the HMRC app will also show what has been reported against you. That gives you the values without giving you the original document.

Keeping your own copies avoids the problem entirely. A P11D can be needed for a tax return, a tax code query or a mortgage application, sometimes years after it was issued.

Does getting a P11D mean I have to file a self assessment tax return?

Not on its own. Receiving benefits does not trigger a filing requirement, because HMRC normally collects the tax through your PAYE code instead.

Filing is triggered by other things: self-employment, rental income, untaxed income, higher-rate pension relief, or HMRC issuing you with a notice to file. Where one of those applies and you also have benefits, the P11D figures go into the employment section of the return.

GOV.UK publishes a checker that works out whether a return is needed based on your circumstances, which is a better guide than the presence of a P11D by itself.

Will I pay tax twice if my employer switches to payrolling?

Not twice on the same benefit, though two years of tax can land in the same period, which can feel like it.

The mechanism works like this. When an employer starts payrolling, the current year’s benefits are taxed in real time through your payslip. Your tax code may still be collecting tax on the previous year’s benefits at the same time, reported on the last P11D your employer filed. Both run together until the older adjustment works its way out.

The overlap is temporary and does not mean you have been charged twice for the same thing. If take-home pay drops when payrolling starts, checking your tax code will show whether a benefit adjustment from an earlier year is still sitting in it.