Benefits in Kind (BiK) are non-cash perks and perks of employment — such as company cars, private medical insurance, and interest-free loans — provided by an employer to an employee or director. Because these perks hold monetary value, HM Revenue & Customs treats them as taxable remuneration. The employer reports their cash equivalent on Form P11D, and the employee pays Income Tax on the benefit value through an adjusted PAYE tax code.
Calculate Your Company Car Tax & BiK Values
Calculate exact annual and monthly BiK tax liabilities across electric (EV), plug-in hybrid (PHEV), petrol, and diesel company cars for 2026/27.
Key 2026/27 Statutory Facts & Tax Rules
- Statutory Definition: Any non-cash benefit provided to an employee by reason of their employment under Section 201 of ITEPA 2003. [Source: GOV.UK]
- Employee Tax Impact: Employees pay Income Tax (20%, 40%, or 45%) on the ‘cash equivalent’ value of the benefit (or an effective 60% if total income falls into the 60% tax trap). Employees pay zero employee National Insurance on non-cash benefits.
- Tax Collection Mechanism: Collected either by payroll deduction (‘payrolling benefits’) or by HMRC reducing your tax-free Personal Allowance via an amended PAYE tax code following annual Form P11D submission.
- Employer Class 1A NICs: Employers pay Class 1A National Insurance on the taxable value of the benefit at 15.0% for 2026/27 (Finance Act 2025/26).
- Company Car Tax BiK Percentage: Pure electric vehicles (EVs) have a statutory BiK rate of 4% for 2026/27 (rising 1% annually to 5% in 2027/28), compared to up to 37% for high-emission combustion engines.
- Trivial Benefits Exemption: Small perks costing £50 or less per employee (including VAT) are completely tax-free and exempt from P11D reporting, provided they are not cash or contractual rewards.
- Beneficial Loans Exemption: Employer interest-free or low-interest loans where the total outstanding balance does not exceed £10,000 at any point during the tax year are exempt from BiK tax.
How Benefits in Kind are Valued: Cash Equivalent Rules
HMRC determines the tax liability of a benefit by calculating its statutory ‘cash equivalent value’. The valuation formula depends strictly on the category of benefit provided:
- General Goods & Services (e.g. Private Medical Insurance): The cash equivalent equals the actual cost incurred by the employer to provide the benefit (e.g. the annual insurance premium paid by the company), minus any direct contribution paid by the employee towards it.
- Company Cars: Calculated as the vehicle’s official P11D list price (including manufacturer options, delivery, and VAT, but excluding first registration fee and vehicle tax) multiplied by the vehicle’s CO2 emissions BiK percentage band (from 4% up to 37%).
- Beneficial Loans (over £10,000): Calculated as the difference between the actual interest paid by the employee and the interest calculated using HMRC’s official statutory interest rate (currently 2.25%).
- Living Accommodation: Calculated using the annual rental rateable value of the property plus additional charges if the property cost the employer more than £75,000.
Fully Worked Example: Private Medical Insurance on PAYE
To see how a Benefit in Kind impacts an employee’s monthly payslip and take-home pay, let us examine an employee earning £60,000 gross per year in England (a 40% Higher Rate taxpayer) whose employer provides comprehensive Private Medical Insurance (PMI) costing £1,800.00 per year:
| Step & Calculation Stage | Baseline (No Benefit) | With £1,800 Medical Benefit | Net Difference |
|---|---|---|---|
| Gross Cash Salary | £60,000.00 | £60,000.00 | £0.00 (Unchanged) |
| P11D Medical Cash Equivalent | £0.00 | £1,800.00 | +£1,800.00 Taxable Value |
| PAYE Tax Code Adjustment | 1257L (£12,570 Allowance) | 1077L (£10,770 Allowance) | -180 Code Points (£1,800) |
| Tax at 20% Basic Rate (on £1,800 benefit) | — | — | +£360.00 / yr (£30/mo) |
| Tax at 40% Higher Rate (on £1,800 benefit) | £11,432.00 | £12,152.00 | +£720.00 / yr (£60/mo) |
| Tax at 45% Additional Rate (on £1,800 benefit) | — | — | +£810.00 / yr (£67.50/mo) |
| Employee National Insurance (2% above UEL) | £3,210.60 | £3,210.60 | £0.00 (Zero Employee NI) |
| Annual Net Take-Home Pay | £45,357.40 | £44,637.40 | -£720.00 / year |
| Monthly Take-Home Pay Reduction for £150/mo Health Cover | Just £60.00 / month | ||
| Employer Class 1A NIC Liability (15.0% on £1,800) | £270.00 (Paid by Company) | ||
Tax Liability Breakdown Across Tax Brackets:
- Basic Rate Taxpayer (20%): An employee earning under £50,270 pays £360.00 per year (£30.00/month) for the £1,800 policy.
- Higher Rate Taxpayer (40%): An employee earning £60,000 pays £720.00 per year (£60.00/month) for the £1,800 policy.
- Additional Rate Taxpayer (45%): An employee earning over £125,140 pays £810.00 per year (£67.50/month) for the £1,800 policy.
The Takeaway: Because employees do not pay National Insurance on non-cash benefits, employees at any tax rate obtain private healthcare at a steep discount compared to purchasing cover individually from post-tax, post-NIC earnings.
Reporting: P11D vs Payrolling Benefits
Employers have two statutory avenues to report and settle tax on Benefits in Kind with HMRC:
1. Traditional Annual Form P11D
By 6 July following the end of the tax year, the employer submits Form P11D to HMRC listing all benefits provided to each employee during the previous tax year, alongside Form P11D(b) to settle Class 1A NICs. HMRC processes these forms over the summer and issues an adjusted coding notice (e.g. changing an employee’s code from 1257L to 1077L) to collect the tax spread across the following year’s payslips.
2. Payrolling Benefits in Real Time
An increasing number of UK employers register with HMRC before the start of the tax year to ‘payroll’ benefits. Under payrolling, the monthly cash equivalent is added directly to taxable gross pay each month. Income Tax is deducted immediately in real time through RTI payroll, eliminating the need for tax code adjustments and unexpected year-end tax bills.
Statutory Tax Exemptions: What is 100% Tax-Free?
HMRC explicitly exempts several common workplace perks from BiK taxation under statute:
- Trivial Benefits (£50 Rule): Perks costing £50 or less per employee (e.g. birthday gifts, flowers for bereavement, team meals celebrating a holiday) provided they are not cash, not salary-sacrifice, and not reward for performance.
- Workplace Parking: Free or subsidised parking spaces at or near the employee’s place of work.
- Subsidised Staff Canteens: Meals provided on company premises open to all staff on reasonable terms.
- Annual Staff Parties: Company social events (such as the annual Christmas dinner) costing up to £150 per head per year (including VAT).
- Workplace Nursery Facilities: Employer-run childcare nurseries on company premises are 100% exempt from BiK tax. For commercial nurseries, see our Salary Sacrifice Calculator.
- Cycle to Work Scheme: Loans of bicycles and cycling safety equipment under approved qualifying schemes.
Frequently Asked Questions
What is a Benefit in Kind (BiK) in the UK?
A Benefit in Kind (BiK) is any non-cash perk or benefit of monetary value provided to an employee or director by their employer in addition to their cash salary. Common examples include company cars, private medical insurance, interest-free loans, and employer-provided accommodation.
Are Benefits in Kind taxable, and how are they taxed?
Yes. Benefits in Kind are treated as taxable employment income. Each benefit has a statutory ‘cash equivalent’ value calculated under HMRC rules. The employee pays Income Tax on this cash equivalent at their marginal tax rate (20%, 40%, or 45%) via an adjustment to their PAYE tax code.
Do employees pay National Insurance on Benefits in Kind?
No. Employees do not pay Class 1 employee National Insurance on most non-cash benefits provided in kind. Instead, the employer pays Class 1A National Insurance on the taxable value of the benefit at 15.0% (for 2026/27). This exemption from employee NICs makes non-cash perks financially advantageous.
What is the point of a P11D?
The point of Form P11D is to report the cash equivalent value of non-cash employment benefits and perks (such as company cars, private health insurance, and interest-free loans) to HMRC. It ensures the correct Income Tax is collected from the employee via their tax code and calculates the employer’s 15.0% Class 1A National Insurance liability on those benefits.
What is the difference between a P11 and a P11D?
A Form P11 (Deductions Working Sheet) is an ongoing payroll document used to track gross cash pay, PAYE Income Tax, and Class 1 National Insurance deducted each pay run. In contrast, Form P11D is an annual statutory return filed by 6 July specifically reporting non-cash benefits in kind and expenses that were not processed directly through regular cash payroll.
How does a Benefit in Kind affect my tax code?
HMRC reduces your PAYE tax code by the cash equivalent value of the benefit. For example, if you receive private medical insurance worth £1,800, HMRC reduces your 1257L tax code by 180 points to 1077L. This reduces your tax-free allowance by £1,800, collecting the tax automatically through monthly payroll.
Which employee benefits are completely tax-free in the UK?
Statutorily exempt perks include employer pension contributions, Cycle to Work bicycles and safety gear, one mobile phone per employee, workplace parking, free eye tests for screen users, annual staff parties costing up to £150 per head, and trivial benefits costing £50 or less.
What is the trivial benefits rule?
An employer can provide a benefit completely tax-free under Section 323A ITEPA 2003 if it costs £50 or less (including VAT) to provide, is not cash or a cash voucher, is not a contractual entitlement, and is not provided in recognition of work performance (e.g. birthday gifts, team flowers).
What is the most tax-efficient way to have a company car?
The most tax-efficient route is choosing a 100% battery electric vehicle (EV), ideally financed through an employer salary sacrifice electric car scheme. For 2026/27, electric cars attract a Benefit in Kind (BiK) rate of just 4% of their P11D value, compared to up to 37% for petrol and diesel models. Salary sacrifice also saves employee and employer National Insurance on the lease cost.
What is the BiK rate on electric company cars for 2026/27?
For the 2026/27 tax year, the Benefit in Kind rate for zero-emission electric vehicles (EVs) is 4% of the car’s P11D list price (up from 3% in 2025/26). The rate increases by 1 percentage point each tax year, reaching 5% in 2027/28, keeping EV company car tax exceptionally competitive.
How is company car benefit-in-kind calculated?
Company car tax is calculated as: P11D value (list price including VAT and options, excluding first-year registration fees) multiplied by the car’s CO2 emissions percentage band (from 4% for EVs up to 37% for high-emission vehicles). You then pay Income Tax on that resulting figure at your personal rate (20%, 40%, or 45%).
Is a cash car allowance better than a company car?
A cash car allowance is treated as standard cash salary, subject to both Income Tax and employee National Insurance (up to 42% or 47% deductions). A company car incurs only BiK tax based on CO2 emissions. For electric cars (4% BiK), taking a company car is far more tax-efficient than taking a cash allowance.
What does ‘amount made good’ mean on a P11D?
‘Amount made good’ refers to any money an employee pays back to their employer towards the cost of a benefit from their net earnings. If you reimburse your employer by the statutory deadline (6 July following the tax year end), the taxable cash equivalent reported on your P11D is reduced pound-for-pound.
What is payrolling benefits, and is Form P11D being phased out?
Payrolling benefits is an HMRC system where employers calculate BiK tax and deduct it directly through monthly PAYE payroll via Real Time Information (RTI), rather than filing annual P11D forms. HMRC has legislated to make the payrolling of benefits in kind mandatory, phasing out annual P11D forms for most benefits.