Advisory Fuel Rates Updated for June 2025: Petrol and Diesel Cuts Announced

HMRC has announced revised advisory fuel rates effective from 1 June 2025, bringing welcome reductions for certain petrol and diesel company car users. These quarterly rate adjustments directly impact how businesses reimburse employees for business travel and calculate private fuel repayments.

For businesses managing company car fleets in Kent, understanding these changes ensures compliance whilst optimising employee expense management. At MCC Partners, we help Gravesend businesses navigate these regulatory updates to maintain accurate payroll and benefit calculations.

June 2025 Rate Changes

The most significant changes affect larger petrol engines and smaller diesel vehicles. Petrol vehicles with engines of 1401cc and above receive a 1p per mile reduction, reverting to pre-March 2025 levels. Similarly, diesel engines up to 1600cc drop by 1p per mile, returning to earlier rates.

Electric vehicle rates remain stable at 7p per mile, reflecting HMRC's commitment to supporting environmentally conscious fleet choices. This rate now undergoes quarterly reviews alongside traditional fuel rates, providing greater consistency in the review process.

Complete Rate Schedule from 1 June 2025

The updated petrol and LPG rates are structured by engine size: vehicles with 1400cc or less maintain 12p per mile for petrol (11p for LPG), whilst 1401cc to 2000cc engines reduce to 14p petrol (13p LPG) from the previous 15p (13p). Larger engines over 2000cc decrease to 22p petrol (21p LPG) from 23p (21p).

Diesel rates show similar patterns, with engines up to 1600cc dropping to 11p from 12p per mile. Mid-range engines of 1601cc to 2000cc remain at 13p, whilst larger diesels over 2000cc maintain 17p per mile. Hybrid vehicles follow the rates applicable to their primary fuel type.

Application and Compliance Requirements

These advisory rates apply exclusively to two specific circumstances: reimbursing employees for business travel in company cars, and requiring employees to repay private fuel costs. Using these rates for any other purpose invalidates their application and may trigger additional tax implications.

When applied correctly, these rates eliminate the need for dispensation applications to cover employee payments, simplifying administrative processes for businesses. However, exceeding these rates without justification creates taxable benefits requiring Class 1A National Insurance contributions.

Transition Period and Flexibility

Businesses benefit from a one-month transition period, allowing continued use of March 2025 rates until 30 June 2025. This flexibility supports payroll processing cycles and ensures smooth implementation of rate changes.

Companies with particularly fuel-efficient vehicles or higher regional fuel costs may apply their own rates, provided they can demonstrate actual costs exceed HMRC's advisory levels. This provision acknowledges varying operational circumstances whilst maintaining compliance standards.

Tax Implications and Reporting

Staying within advisory rate limits ensures no taxable profit arises from mileage payments, protecting both employer and employee from unexpected tax charges. Payments exceeding advisory rates without cost justification trigger fuel benefit charges for business-only travel, requiring treatment as taxable profit subject to Class 1 National Insurance.

Accurate record-keeping becomes essential when applying custom rates above advisory levels, as HMRC requires clear evidence of actual fuel costs to validate higher reimbursement rates.

Quarterly Review Schedule

HMRC maintains its quarterly review schedule, updating rates on 1 March, 1 June, 1 September, and 1 December. This predictable timing allows businesses to plan payroll adjustments and communicate changes effectively to employees.

Regular reviews reflect fluctuating fuel prices and economic conditions, ensuring advisory rates remain realistic for business operations whilst maintaining fair tax treatment.

Strategic Considerations for Kent Businesses

These rate reductions may influence fleet management decisions, particularly for businesses considering vehicle replacements or policy updates. Lower reimbursement costs for certain engine categories could impact total cost of ownership calculations for company car programmes.

Businesses should review current mileage policies to ensure alignment with updated rates, potentially reducing administrative costs whilst maintaining employee satisfaction with travel expense reimbursements.

Professional Guidance for Compliance

Managing company car benefits and mileage reimbursements requires detailed understanding of tax regulations and practical application. At MCC Partners, we support local businesses with comprehensive payroll and benefit administration, ensuring compliance whilst optimising cost-effectiveness.

Our team provides practical guidance on implementing rate changes, maintaining accurate records, and managing the complex interaction between company car benefits, fuel reimbursements, and tax obligations.

Need assistance with company car administration or payroll compliance? Contact MCC Partners at This email address is being protected from spambots. You need JavaScript enabled to view it. or call 01474 619 990 for expert guidance tailored to your business requirements.