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Fuel Benefit Calculator UK

Enter your values below to get the result first, then scroll for the full explanation and guidance.

Step 1 • Add values

Use the calculator

Enter your values below to generate an instant result. You can update the inputs at any time to compare different scenarios.

Example: a confirmed 25% company-car benefit percentage gives GBP 7,300 taxable car fuel benefit for the full 2026/27 year.

Results refresh instantly as values change.

Annual taxable car fuel benefit

£7,300.002026/27 full-year cash equivalent

Annual taxable car fuel benefit: £7,300.00 (2026/27 full-year cash equivalent)

The 2026/27 car fuel multiplier is multiplied by the confirmed appropriate company-car benefit percentage.

Fuel benefit calculation

The 2026/27 car fuel multiplier is multiplied by the confirmed appropriate company-car benefit percentage.

Result snapshot

A quick visual read of the values behind this result.

2026/27 car fuel multiplier£29,200.00
Confirmed car benefit percentage25%

Recommended next checks

  • →Confirm your car's appropriate percentage and whether private fuel was provided for the full year without full reimbursement.
2026/27 car fuel multiplier
£29,200.00
Confirmed car benefit percentage
25%

For a company car with taxable employer-provided private fuel available for the full 2026/27 tax year, without full reimbursement. This is taxable benefit value, not Income Tax due or actual fuel cost. Part-year provision, vans, electric charging and exemption decisions are excluded.

Try different values to compare results.

If your employer provides taxable private fuel for a company car throughout 2026/27, enter the vehicle's confirmed appropriate car-benefit percentage. The estimate gives the fuel benefit's taxable cash equivalent, not the tax you will pay.

Restricted scope stated

Applicable period shown

Excluded claim or payroll factors disclosed

Table of Contents

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About Fuel Benefit Calculator UK

Fuel Benefit Calculator UK helps you work through the main numbers for this topic quickly with a simple input flow and an instant result.

Use the calculator result as a practical starting point, then review the explanation and assumptions on the page if you want more context.

Full-year car fuel benefit method

HMRC's 2026/27 car fuel benefit multiplier is GBP 29,200. For a full-year taxable private-fuel benefit, multiply it by the car's appropriate benefit percentage. At 25%, the cash equivalent is GBP 7,300. Check whether private fuel was fully reimbursed, when the benefit began or ended, and whether your vehicle is a car rather than a van.

Formula explained

Full-year car fuel benefit cash equivalent

Estimate the full-year 2026/27 taxable cash equivalent of employer-provided private fuel for a company car using the confirmed appropriate car-benefit percentage.

Formula

2026/27 taxable fuel benefit = GBP 29,200 x confirmed appropriate car-benefit percentage

How the result is built

1Confirm private fuel is taxable for the full 2026/27 year and not fully reimbursed.
2Enter the vehicle's confirmed appropriate car-benefit percentage.
3Multiply by the GBP 29,200 annual multiplier; the result is benefit value, not tax due.

Example

Example: a confirmed 25% company-car benefit percentage gives GBP 7,300 taxable car fuel benefit for the full 2026/27 year.

Assumptions

  • A company car and employer-provided private fuel are taxable for the full 2026/27 tax year, with no full reimbursement of private fuel.
  • The entered 1%-37% appropriate car-benefit percentage has been independently confirmed for the vehicle; this tool does not derive it from emissions.
  • The output is taxable benefit cash equivalent, not actual Income Tax due, fuel expense, NI or P11D eligibility decision.
  • Part-year provision, fuel withdrawn, vans, electric charging and optional remuneration arrangements are excluded.

Source basis

  • HMRC Employment Income Manual EIM25580, EIM25560; ITEPA 2003 section 150

Trust and notes

Assumptions and important notes

This calculator is designed to give a fast estimate using the method shown on the page. Results are most useful when your inputs are accurate and the tool matches your situation.

Use the result as guidance rather than a final diagnosis or professional decision. If the result could affect health, legal, financial, or compliance decisions, verify it with a qualified source where appropriate.

  • A company car and employer-provided private fuel are taxable for the full 2026/27 tax year, with no full reimbursement of private fuel.
  • The entered 1%-37% appropriate car-benefit percentage has been independently confirmed for the vehicle; this tool does not derive it from emissions.
  • The output is taxable benefit cash equivalent, not actual Income Tax due, fuel expense, NI or P11D eligibility decision.
  • Part-year provision, fuel withdrawn, vans, electric charging and optional remuneration arrangements are excluded.

Method

Full-year car fuel benefit cash equivalent

Last reviewed

October 13, 2026