Free P11D Generator (2026/27)

Report benefits in kind clearly with a free P11D

If your company gives directors or employees benefits on top of their salary - a company car, private medical insurance, an interest-free loan - those benefits are usually taxable, and they're reported to HMRC on a form called a P11D. Getting the P11D right matters for both the employee (who pays tax on the benefit) and the employer (who pays Class 1A National Insurance on it). This free generator helps you list each benefit, totals the taxable value, estimates the employer's Class 1A NIC, and produces a clean PDF for your records - no signup, unlimited use.

What a P11D is

A P11D reports the "benefits in kind" provided to a director or employee during the tax year. Benefits in kind are non-cash perks with a monetary value - things the employee enjoys but doesn't receive as salary. Each benefit has a "cash equivalent", a value worked out under HMRC's rules, and it's that figure which is reported and taxed. The employee pays income tax on the total, usually collected through an adjusted tax code, and the employer pays Class 1A National Insurance on it. HMRC's guidance on expenses and benefits lists how each type is treated.

Common benefits in kind

The benefits that most often appear on a P11D include:

• Company cars - usually the biggest single benefit, valued using the car's list price and CO₂ emissions
• Car fuel - where the employer pays for private fuel
• Private medical and dental insurance
• Beneficial (cheap or interest-free) loans above a threshold
• Living accommodation provided by the employer
• Assets given to or used by the employee

Our generator includes lines for each of these plus an "other benefits" catch-all. You enter the cash equivalent of each, and the tool totals them and shows the employer's Class 1A National Insurance estimate.

Company cars: the big one

For many employees the company car is the most significant benefit, and its cash equivalent can be substantial. It's calculated from the car's list price multiplied by a percentage based on its CO₂ emissions - which is why low-emission and electric cars are so tax-efficient as company vehicles. If you're working out a car benefit, our Company Car Tax Calculator estimates the cash equivalent and the tax for you, and you can then drop that figure straight into the P11D generator. Getting the car benefit right is often the difference between a P11D that's roughly correct and one that's significantly off.

Class 1A National Insurance and deadlines

On top of the employee's income tax, the employer pays Class 1A National Insurance on the total value of most benefits - at 15% for 2026/27. Our generator estimates this automatically from the benefit total, so you can see the employer's cost at a glance. P11Ds for a tax year must be filed online with HMRC, and the Class 1A NIC paid, by the deadlines that follow the tax year end (generally 6 July for filing and 22 July for paying NIC electronically). Missing these can trigger penalties, so it's worth diarising them. This tool produces the document for your records and planning; the official submission goes through HMRC's online services or your payroll software.

Payrolling benefits - the direction of travel

Increasingly, employers are "payrolling" benefits in kind - taxing them through the payroll in real time rather than reporting them on a P11D after the year. The government has signalled that payrolling will become the norm, which will eventually change how most benefits are reported. Even so, understanding the cash equivalent of each benefit remains essential, whether it's payrolled or reported on a P11D, because that value is what drives both the employee's tax and the employer's NIC. This generator is a handy way to total and document those values however you ultimately report them.

For directors and small companies

Owner-managed companies often provide benefits to their director - a company car, medical cover, the odd loan - and these all need reporting. Keeping a clear P11D record helps you stay compliant and plan the tax cost. It sits alongside the rest of your director paperwork: the Payslip Generator for salary, the Dividend Voucher Generator for dividends, and the Corporation Tax Calculator for the company's own tax. Together they help a small company keep its affairs tidy without expensive software. For the employer's responsibilities in full, see GOV.UK's reporting expenses and benefits guidance.

The bottom line

Benefits in kind are a valuable part of many pay packages, but they come with reporting obligations that catch employers out. A clear P11D - listing each benefit's cash equivalent, totalling them, and showing the Class 1A NIC - keeps you compliant and makes the cost visible. Use the generator above to build and document your P11D for free, lean on the Company Car Tax Calculator for the trickiest figure, and keep an eye on the filing deadlines after the tax year ends.

A worked example

Take a director with a company car (cash equivalent £6,000 based on its list price and emissions), employer-paid private medical insurance (£1,200), and no other benefits. The P11D lists both, giving a total cash equivalent of £7,200. The director pays income tax on that £7,200 at their marginal rate - £2,880 if they're a higher-rate taxpayer - usually collected through an adjusted tax code over the year. The company pays Class 1A National Insurance at 15% on the £7,200, which is £1,080. This generator totals the benefits and shows that Class 1A figure automatically, so both the employee's exposure and the employer's cost are clear at a glance. Swap the car for an electric one and the cash equivalent - and therefore both bills - drop sharply, which is why EVs are so popular as company cars.

Getting the cash equivalents right

The accuracy of a P11D depends entirely on the cash-equivalent figures you feed in, and some are trickier than others. Company cars are valued from list price and CO₂ emissions; fuel benefit uses a set multiplier; beneficial loans use an official rate of interest; and living accommodation has its own rules. Medical insurance and most other perks are simply the cost to the employer. Where a benefit is hard to value, HMRC's guidance is the reference - and for the big one, the company car, our Company Car Tax Calculator does the heavy lifting and gives you a figure to enter here. Getting these right matters, because errors flow straight through to the employee's tax and the employer's NIC.

Frequently asked questions

Who needs a P11D? Any employer who provides taxable benefits in kind that aren't payrolled. When's the deadline? P11Ds for a tax year are generally due to HMRC by 6 July following the year end, with Class 1A NIC payable shortly after. What's the difference between a P11D and payrolling benefits? Payrolling taxes benefits in real time through payroll; a P11D reports them after the year. The government is moving towards payrolling becoming standard. Do directors need P11Ds? Yes, if they receive taxable benefits - owner-managers often do, via a company car or medical cover.

Keeping the company's paperwork together

Benefits reporting is one strand of running a compliant company. It works best alongside tidy records for everything else: salaries via the Payslip Generator, profit extraction via the Salary vs Dividend Calculator and Dividend Voucher Generator, and the company's own tax via the Corporation Tax Calculator. Keeping each piece documented through the year turns the year-end from a scramble into a formality. For the employer's full obligations on expenses and benefits, GOV.UK's reporting expenses and benefits guidance is the authoritative source.

Privacy and how this tool helps

Like the rest of the TaxFly toolkit, the P11D generator runs in your browser - the figures you enter build the document on your device and aren't stored or sent to us. It's designed to help you total and document benefit values clearly, estimate the employer's Class 1A National Insurance, and produce a clean PDF for your records and planning. The official submission goes through HMRC's online services or your payroll software; this tool takes the friction out of organising the numbers beforehand, free of charge and with no signup.

The bottom line

Benefits in kind are a valuable part of many pay packages, but the reporting trips employers up - particularly the company-car figure and the Class 1A National Insurance cost. A clear P11D that lists each benefit's cash equivalent, totals them, and shows the employer's NIC keeps you compliant and makes the true cost visible. Build and document yours for free above, lean on the Company Car Tax Calculator for the trickiest value, keep an eye on the post-year-end deadlines, and store it with the rest of your tidy company paperwork.

One final reminder: review your benefits each year rather than copying last year's figures. Cars change, insurance premiums move, and loans are repaid - all of which alter the cash equivalents. A quick annual review, with the company-car figure refreshed from our calculator, keeps your P11D accurate and avoids both under-reporting (which risks penalties) and over-reporting (which costs your employees tax they don't owe).