P11D Benefits in Kind Calculator
Calculate P11D benefit values for company cars, private medical, loans, accommodation and more — 2026/27
Last updated: March 2026
P11D Benefits in Kind Calculator 2026/27
Select the benefits that apply and enter the relevant values — the calculator totals your P11D, employee income tax, and employer Class 1A NIC
Benefit 1 — Company Car
Benefit 2 — Private Medical Insurance
Benefit 3 — Beneficial Loan
Benefit 4 — Living Accommodation
Benefit 5 — School Fees / Other Benefits
P11D Company Car CO2 Percentage Rates 2026/27
| CO2 Emissions (g/km) | Petrol/RDE2 Diesel | Non-RDE2 Diesel | Electric (0g/km) |
|---|---|---|---|
| 0 (Electric) | — | — | 4% |
| 1–50 (PHEV, electric range >130 miles) | 5% | +4% surcharge | — |
| 51–75 | 13% | +4% surcharge | — |
| 76–94 | 15% | +4% surcharge | — |
| 95–99 | 16% | +4% surcharge | — |
| 100–104 | 17% | +4% surcharge | — |
| 110–114 | 19% | +4% surcharge | — |
| 120–124 | 21% | +4% surcharge | — |
| 130–134 | 23% | +4% surcharge | — |
| 160–164 | 29% | +4% surcharge | — |
| 170+ (maximum) | 37% | +4% surcharge (max 37%) | — |
Expert Guide: P11D Benefits — 7 Key Rules for Employers & Employees 2026/27
1. P11D Filing Deadlines — The 6 July Rule
The P11D return must be submitted to HMRC by 6 July following the end of the tax year (5 April). For 2025/26, the deadline is 6 July 2026. The employer must also provide a copy of the P11D information to each affected employee by the same date. Late filing attracts automatic penalties of £100 per 50 employees per month (or part month) of delay, up to a maximum of 12 months. HMRC also issues penalties for incorrect P11D returns.
The P11D(b) form (summary of Class 1A NIC due) must be filed by 19 July. Class 1A NIC payment is also due by 19 July (22 July for electronic payment). Late Class 1A NIC payments attract interest at HMRC's late payment rate (currently 7.75% per annum), and HMRC may also issue a penalty of up to 15% of the unpaid NIC for serious or repeated failures. Set calendar reminders for both the 6 July P11D and 19 July Class 1A deadlines.
2. Company Car — Electric vs Petrol Tax Comparison
The company car benefit-in-kind rules heavily favour electric vehicles. For 2026/27, a zero-emission electric car is taxed at 4% of list price. A petrol car with CO2 of 120g/km is taxed at 21%. On a £40,000 company car: electric BIK = £40,000 × 4% = £1,600 (income tax at 40% = £640). Petrol at 120g/km: BIK = £40,000 × 21% = £8,400 (income tax at 40% = £3,360). The employee saves £2,720 per year in income tax alone. The employer saves £6,800 × 13.8% = £938 in Class 1A NIC.
The electric car BIK rates are rising: 4% in 2026/27, 5% in 2027/28, 6% in 2028/29, 7% in 2029/30. HMRC published these rates to 2029/30 to give employers and employees confidence in planning EV adoption. Even at 7%, the electric car advantage over a petrol car remains substantial. The fuel benefit charge does not apply to electricity charged by the employer for an electric company car — another significant advantage.
3. Payrolling Benefits — The Mandatory Shift from April 2026
From 6 April 2026, employers will be required to payroll most benefits in kind through PAYE rather than reporting them on P11D forms. This means the income tax on benefits is collected in real time via the payroll, and separate P11D forms are no longer required for payrolled benefits. HMRC confirmed this mandatory change in the 2024 Autumn Statement. The P11D(b) form remains for reporting Class 1A NIC, but the individual P11D process ends for most benefits.
Benefits that will still require a P11D (post-mandatory payrolling) include: employment-related loans (beneficial loans), living accommodation, and reimbursed expenses. Employers who have already voluntarily registered for payrolling are well-prepared. Those still relying on annual P11D submissions should implement payroll software changes and communicate with employees about how their tax codes will change to reflect the payrolled benefit values.
4. The Trivial Benefits Exemption — £50 Per Benefit
The trivial benefits exemption allows employers to give employees non-cash gifts costing £50 or less per item without any income tax, NIC, or P11D reporting. The benefit must not be cash or a cash voucher, must not be a reward for performance, must not be contractually promised, and must cost £50 or less (if it costs £50.01, the entire benefit is taxable — there is no apportionment). For close company directors, there is a separate annual cap of £300 for trivial benefits in total per year.
Common trivial benefits include: birthday gifts (flowers, chocolates), Christmas hampers, staff social events (separate from the £150/head annual party exemption), and minor staff welfare gifts. The exemption applies per benefit — a £45 gift in June and a £45 gift at Christmas are each separately exempt. The exemption cannot be used to substitute salary or to reward performance — a £50 bonus disguised as a "birthday gift" would not qualify. Keep evidence of the cost and nature of each trivial benefit for HMRC compliance.
5. Optional Remuneration Arrangements (OpRA) — When Salary Sacrifice Still Works
The 2017 OpRA changes removed the NIC advantage of salary sacrifice for most benefits. However, important exceptions remain where salary sacrifice continues to provide significant tax and NIC savings. Pension contributions via salary sacrifice remain highly tax-efficient: the employee gives up gross salary, saving both employee NIC and income tax, and the employer saves employer NIC (15% for 2026/27). The pension contribution enters the fund free of all taxes. A £10,000 pension via salary sacrifice saves an employee approximately £4,200 (40% tax + 2% employee NIC) and saves the employer £1,500 (15% employer NIC).
Cycle-to-work schemes retain their full salary sacrifice tax advantage — there is no OpRA restriction because bikes and cycling safety equipment qualify for the statutory "qualifying journeys to work" exemption. Ultra-low emission vehicles (ULEVs — those with CO2 below 75g/km) under salary sacrifice also retain a tax advantage (the taxable value is the higher of the OpRA amount or the standard BIK, but for EVs the standard BIK is so low that salary sacrifice still often produces a better outcome than after-tax purchase or personal finance).
6. Living Accommodation Benefit — The £75,000 Threshold
Living accommodation provided by an employer to an employee (unless the employee is required to occupy it as a condition of their employment, or for better performance of duties in certain roles) is a taxable benefit. The basic benefit is the greater of: the gross annual value (rateable value) or the market rent if the property is rented by the employer. Where the property was purchased by the employer and cost more than £75,000, an additional benefit is calculated: (cost − £75,000) × HMRC official rate (2.5%).
Example: Employer-owned property cost £200,000. Annual rental value = £8,400. Basic BIK = £8,400. Additional BIK = (£200,000 − £75,000) × 2.5% = £3,125. Total accommodation BIK = £11,525. Income tax at 40% = £4,610. Employer Class 1A NIC = £11,525 × 13.8% = £1,590. There are exemptions for caretakers, farmworkers, and ministers of religion who must occupy the accommodation to perform their duties, and for employees in security threat situations where accommodation is provided for personal safety reasons.
7. Section 336 Deductions — Offsetting Genuine Business Expenses
Employees who are taxed on a P11D benefit may in some cases be able to claim a deduction under ITEPA 2003 s.336 if part of the benefit was used wholly, exclusively, and necessarily in the performance of their employment duties. The test is strict — the HMRC "wholly, exclusively, and necessarily" test is deliberately harder than the "wholly and exclusively" test for businesses. A benefit cannot be deducted merely because it helps the employee do their job — it must be strictly required for the performance of duties.
Practical examples: a company car used 40% for private purposes has a P11D based on 100% of the benefit (there is no partial deduction for business use — the capital value approach already accounts for this through the CO2 percentage). However, if an employee is required to use their own funds to pay for business expenses covered by a P11D benefit, a s.336 claim can offset those specific amounts. HMRC Expenses working sheets help identify deductible amounts. Claim via Self Assessment or a PAYE adjustment application.
Related Calculators
Expert Reviewed — P11D benefit rules per ITEPA 2003. Company car CO2 rates per HMRC EIM24704. Last verified: March 2026.