How to Reduce Business Fuel Costs

March 18, 2026
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Fuel is one of the biggest ongoing costs for any Irish business that relies on vehicles. Whether you run a single company car or a full commercial fleet, rising fuel prices can eat deeply into your bottom line. The good news is that with the right vehicle choices, leasing strategy, and expert guidance, significant savings are within reach. At Kearys Leasing, Ireland's trusted vehicle leasing specialists, we work with business owners every day to help them make smarter vehicle decisions. In this guide, we share our proven strategies for cutting fuel costs — without cutting corners on productivity or professional image.

Why Fuel Costs Are a Critical Business Expense

For Irish SMEs, transport and vehicle running costs typically represent 15–25% of total operating expenses. Fuel alone accounts for a substantial slice of that figure, and with diesel and petrol prices remaining volatile, businesses are right to look for structural solutions rather than hoping prices drop.

Key pressure points for business owners include:

• Fluctuating fuel prices at the pump

• Older, less efficient vehicles with high fuel consumption

• Employee mileage claims that are difficult to track or verify

• No clear data on fuel usage across a fleet

• Missed opportunities to avail of Government EV incentives

The solution isn't to reduce your team's mobility — it's to change how you provide it.

1. Upgrade to Fuel-Efficient Vehicles Through Business Leasing

The single most impactful thing most businesses can do to reduce fuel costs is upgrade their vehicles. Newer models — whether petrol, diesel, hybrid, or fully electric — are dramatically more fuel-efficient than older counterparts.

Why Leasing Makes Sense for Fuel Savings

Business Contract Hire (BCH) from Kearys Leasing gives your company access to the very latest, most fuel-efficient vehicles for a fixed monthly payment — without the capital outlay of purchasing outright. You benefit from:

• Brand-new vehicles with the latest fuel-saving technology

• Manufacturer-standard emissions standards (Euro 6 and beyond)

• Predictable monthly costs for easier financial planning

• The ability to upgrade every 2–4 years to stay on top of efficiency improvements

💡 Kearys Leasing Tip

Swapping a 5-year-old diesel van for a modern equivalent can reduce fuel consumption by 20–30%. Multiply that across even a small fleet of 5 vehicles and the annual saving can run into thousands of euro.

2. Make the Switch to Electric Vehicles (EVs)

Electric vehicles represent the most significant opportunity to eliminate fuel costs entirely — replacing petrol or diesel expenditure with far cheaper electricity. The Irish Government actively supports this transition with generous incentives for businesses.

Government Support Available to Irish Businesses

• SEAI EV grants of up to €3,500 for eligible electric cars

• 0% Benefit-in-Kind (BIK) tax on electric company cars (up to €45,000 OMV)

• VRT relief on battery electric vehicles

• Lower road tax for electric vehicles

• Accelerated Capital Allowances (ACA) for business-purchased EVs

Running Cost Comparison: EV vs Petrol/Diesel

Cost Factor Petrol / Diesel Electric Vehicle

Cost per 100km (approx.) €9–€13 €2–€4

Cost Factor Petrol / Diesel Electric Vehicle

Annual fuel/energy cost (15,000km) €1,350–€1,950 €300–€600

BIK tax rate (company car) Standard rate applies 0% (up to €45k OMV)

Government grant available None Up to €3,500 (SEAI)

Road tax (annual) €180–€750+ €120

Kearys Leasing offers a wide range of electric and hybrid vehicles on flexible business lease terms. Our team can calculate the exact savings for your specific mileage profile — simply get in touch to discuss your requirements.

3. Consider Hybrid Vehicles as a Stepping Stone

Not every business is ready for fully electric. Range anxiety, charging infrastructure, or the nature of your routes may make pure EVs impractical right now. In these cases, plug-in hybrid electric vehicles (PHEVs) and mild hybrids offer an excellent middle ground.

• PHEVs can cover typical commutes and urban routes on electric power alone

• Hybrid technology automatically reduces fuel use in stop-start traffic

• Lower BIK rates compared to pure petrol or diesel vehicles

• Reduced fuel bills — particularly beneficial for high-mileage drivers

🔑 Did You Know?

A plug-in hybrid used primarily for urban and commuter routes can cut fuel consumption by 40–60% compared to a comparable petrol model — making it one of the smartest choices for mixed-use business vehicles.

4. Right-Size Your Fleet With Expert Guidance

Many businesses are running vehicles that are larger, heavier, or more powerful than their actual needs require. A larger engine means higher fuel consumption — even if the extra capacity is never used.

Kearys Leasing's expert team will conduct a free vehicle needs assessment to match the right vehicle to each role in your business. For example:

• Sales reps who cover long motorway miles suit efficient petrol or hybrid saloons

• Urban delivery drivers benefit most from electric vans or small EVs

• Tradespeople requiring payload capacity can choose from modern, efficient light commercial vehicles

Getting the specification right from the start means you pay only for what you need — and every unnecessary litre of fuel stays in your budget.

5. Consolidate Fleet Management With One Provider

Managing vehicle costs across multiple providers, different vehicle ages, and various lease agreements is time-consuming and inefficient. Consolidating your entire fleet under one trusted leasing partner — like Kearys Leasing — creates significant operational and cost advantages.

• Standardised, modern vehicles mean consistent, predictable fuel economy

• Simplified monthly invoicing and administration

• A single point of contact for servicing, breakdowns, and replacements

• Easier policy enforcement around vehicle use and fuel management

• Volume advantages that can reduce your monthly lease cost per vehicle

6. Introduce a Company Vehicle Policy

Even the most fuel-efficient vehicle can be costly to run without clear usage policies in place. A written company vehicle policy helps reduce unnecessary fuel expenditure through employee accountability.

Key Elements of an Effective Vehicle Policy

• Require route planning and journey approval for non-standard trips

• Set clear idling rules — idling for more than 60 seconds wastes fuel unnecessarily

• Establish tyre pressure check schedules (under-inflated tyres increase fuel use by up to 3%)

• Prohibit roof boxes or excess cargo when not needed — aerodynamic drag costs fuel

• Encourage driver training in fuel-efficient driving techniques

📊 The Numbers Matter

Smooth acceleration and deceleration, maintaining steady speeds, and reducing unnecessary idling can improve fuel efficiency by 10–15% without changing a single vehicle — purely through driver behaviour.

7. Take Advantage of Tax Benefits on Business Vehicles

Reducing fuel costs isn't just about what you spend at the pump — it's also about maximising the tax efficiency of your vehicle expenditure. Irish businesses leasing vehicles can avail of significant tax advantages:

Key Tax Reliefs for Business Vehicle Leasing in Ireland

• VAT reclaim: Businesses can reclaim 50% of VAT on car leases and 100% on commercial vehicle leases (where vehicles are used exclusively for business)

• Lease payments are fully deductible as a business expense (subject to emissions thresholds)

• Lower CO2 vehicles qualify for full deductibility — another reason to choose efficient models

• Benefit-in-Kind (BIK) reductions for lower-emission vehicles reduce employer PRSI and employee tax liability

Our team at Kearys Leasing will walk you through the tax implications of every lease option we offer, ensuring you maximise every available relief. We always recommend working with your accountant to confirm the most beneficial approach for your specific circumstances.

Frequently Asked Questions About Reducing Business Fuel Costs

These are the questions our team at Kearys Leasing hears most often from business owners across Ireland.

How much can I save on fuel by switching to an electric vehicle for my business?

The saving depends on your annual mileage, but as a general guide: a business driver covering 20,000km per year in a petrol car may spend €1,800–€2,600 on fuel annually. The equivalent EV would cost approximately €400–€700 in electricity. That's a potential annual saving of €1,200–€2,200 per vehicle — before accounting for lower BIK tax, SEAI grants, and reduced servicing costs.

Is business vehicle leasing tax deductible in Ireland?

Yes. Business contract hire payments are treated as a deductible business expense in Ireland, subject to CO2 emission thresholds set by Revenue. For low-emission and electric vehicles, the full lease payment is typically deductible. Additionally, businesses can reclaim 50% of VAT on passenger car leases, and 100% on qualifying commercial vehicle leases where they are used exclusively for business.

What is the most fuel-efficient type of business vehicle?

Fully electric vehicles (EVs) have the lowest 'fuel' cost per kilometre, as they run entirely on electricity which costs significantly less per unit of energy than petrol

or diesel. For businesses not yet ready to go fully electric, plug-in hybrid electric vehicles (PHEVs) offer the next best savings — especially for drivers who can charge regularly. Modern diesel vehicles remain efficient for high-mileage motorway driving, while petrol hybrids suit mixed urban and suburban use.

Does Kearys Leasing offer electric vehicles for businesses?

Yes. Kearys Leasing offers a wide selection of electric cars and vans for business lease, including leading models from manufacturers such as Volkswagen, Peugeot, Nissan, Hyundai, Kia, and more. Our team can help you identify the right EV for your business needs and guide you through all available Government grants and incentives.

Can I lease a van for my business in Ireland?

Absolutely. Kearys Leasing provides business leasing for light commercial vehicles including panel vans, crew vans, and car-derived vans from leading manufacturers. Commercial vehicle leases often attract full VAT reclaim (100%) where the vehicle is used exclusively for business, making them highly tax-efficient. Electric vans are also available and are increasingly popular with businesses wanting to cut both fuel costs and emissions.

How quickly can I get a new business lease vehicle from Kearys Leasing?

Lead times vary depending on the make, model, and current manufacturer stock levels. For in-stock vehicles, delivery can sometimes be arranged within a matter of weeks. Our team will always give you the most accurate timeline upfront so you can plan accordingly. Contact us directly for current availability on the vehicles you're interested in.

Start Saving on Business Fuel Costs Today

At Kearys Leasing, we've helped hundreds of Irish businesses reduce their vehicle running costs through smarter leasing choices, efficient vehicle selection, and expert guidance. Whether you're reviewing your current fleet, planning a new purchase, or exploring electric vehicles for the first time, our team is ready to help.

📞 Get a Free Fleet Review from Kearys Leasing

Talk to our expert team today. We'll review your current vehicles and driving profiles, recommend the most fuel-efficient options, and provide a personalised cost comparison — at no charge.

→ Contact Kearys Leasing | www.kearysleasing.ie

Kearys Leasing Ireland | Vehicle Leasing Specialists | kearysleasing.ie

Figures quoted are indicative estimates for illustrative purposes. Tax reliefs are subject to Revenue rules.