Fuel is usually the largest single item in the cost per kilometre, often as much as 30 percent. If drivers fuel wherever it happens to be convenient, pay the retail pylon price and toss receipts into the glovebox, the company loses money in five places at once: on the price per litre, on taxes it never recovers, on liquidity, on bookkeeping, and on the lack of control. The good news is that each of these five leaks can be plugged, and most of them with a single tool.
This guide shows step by step how to fuel cheaply in a transport and fleet company in 2026. We will go through every lever for lowering the cost per litre, show where to check current diesel prices in Europe, explain where you recover excise and VAT, and finally show how the OMV fuel card available through ONYX brings it all into one system.
Quick answer: the 7 levers of cheap fueling
| Lever | What it is | Savings potential |
|---|---|---|
| 1. Card price | Settlement at the card price instead of retail | a few cents per litre |
| 2. Discounts | Fixed plus volume discount, growing with fueling | grows with volume |
| 3. Fueling geography | Fuel in cheaper countries and off the motorway | prices differ between countries |
| 4. Excise refund | Recovering part of the excise for vehicles over 7.5 t | up to around 191 EUR/1,000 l |
| 5. VAT deduction | Up to 100 percent for trucks | a double-digit percentage of the price |
| 6. Deferred payment | Money works in the company up to 30 days longer | improved liquidity |
| 7. Control and AdBlue | Limits, blocks, AdBlue and tolls on one invoice | fewer abuses and losses |
The single most important takeaway of this guide: the cheapest fueling is not one trick, it is stacking all the levers at once. Individually they give a few percent, together they can cut the real cost of fuel by a double-digit percentage, and in international transport by more than twenty percent.
Why the pylon price lies (and what to calculate instead)
The driver looks at the pylon and sees the gross price: fuel plus excise plus VAT. For a private person that is the final price. For a transport company it is only the starting point, because the real cost per litre looks completely different.
The net cost per litre for a carrier is:
- The gross price from the pylon
- minus the deducted VAT (up to 100 percent for trucks)
- minus the recovered part of the excise (in countries that refund it to professional carriers)
- minus the card discount (fixed and volume)
That is why a country with a higher pylon price but a high excise refund can be genuinely cheaper than a country with a low retail price but no refund. A classic example: France has one of the highest gross prices in Europe, but thanks to the excise refund for vehicles over 7.5 tonnes its net cost drops to a level that changes the calculation of the whole route. We showed this mechanism in practice in the article on road tolls and fuel in Austria.
Rule number one: calculate the net cost per litre, not the pylon price. A fuel card gives you the data for this, because every transaction is recorded with country, date, number of litres and amount, ready for VAT and excise settlement.
Lever 1: card price instead of retail
The first and simplest mechanism is the card price. The card issuer negotiates prices with the station network that are better than retail, and you settle the fueling at the card rate, not the pylon price. The difference may seem small per litre, but at fleet volumes it is real money every month.
On top of that comes no cash and no private cards. The driver authorizes the transaction with a PIN, and the company receives a single consolidated invoice. The risk disappears that someone fuels more expensively because it was convenient, or loses a receipt and forfeits the VAT deduction.
Lever 2: fuel discounts (fixed plus volume)
The discount is the heart of every fuel card. With the OMV card it works on two tracks:
| Discount mechanism | How it works |
|---|---|
| Fixed discount | A flat amount off per litre on selected markets, set in the contract |
| Volume discount | The higher the fleet’s annual fueling volume, the higher the rebate |
| Card price | Settlement at a rate better than retail |
The discount grows with volume, and we set its level individually in the contract, based on your fleet volume and routes. We broke down the full cost and discount structure in the mega guide to fuel cards for companies.
Lever 3: fueling geography, or where to fuel cheaper in Europe
Diesel prices differ noticeably between EU countries, and on a full truck tank the price gap adds up quickly. That is why planning where to fuel is just as important as at what price.
Where to check current diesel prices in Europe
Prices change every week, so we do not publish a table here that would quickly go out of date. The European Commission publishes current average retail prices for EU countries in its Weekly Oil Bulletin. The pattern is usually similar: fuel is cheaper in Poland and Central Europe and more expensive in Western and Northern Europe, for example in the Netherlands, Denmark and Finland.
Practical conclusion: on routes south through Czechia, Slovakia, Slovenia and Hungary, fill up in the cheaper countries before entering Austria, Italy and France. Before the Netherlands, Denmark and Finland, fuel earlier, because every litre bought there is a loss. Remember lever 4, though: after the excise refund the net ranking looks different, and France or Belgium climb up the profitability list.
Bulgaria is one of the cheapest EU markets and a natural fueling point on routes to Turkey and Greece. We described the cost context in the guide to tolls and fuel in Bulgaria.
Fuel off the motorway junctions
Stations right at motorway junctions and at service areas can be noticeably more expensive than stations a few hundred metres off the exit. With the station map within the card’s reach and a telematics route planning system, the driver fuels where it is cheaper and on the way, instead of under the pressure of an empty tank at the nearest, most expensive point.
Where you can fuel with the OMV card: the full list of countries
The OMV card works in two layers: card prices in the OMV group’s own network and ROUTEX acceptance in one of the largest fuel networks in Europe.
Layer 1: 7 countries at card prices (OMV, Avanti, Diskont, Petrom network)
These are stations in Austria, Czechia, Slovakia, Slovenia, Hungary, Romania and Serbia where you fuel at the discounted card price.
Austria
Price level: higher. Network: OMV and Avanti (discount). Excise: no refund for carriers. Austria is an expensive market, but the dense Avanti network lets you fuel cheaper than at branded motorway stations. Transit practice: fuel minimally in Austria, top up in Czechia and Slovenia. Details in the guide to road tolls and fuel in Austria.
Czechia
Price level: very low. Network: OMV. Excise: no refund, but the low base price makes up for it. One of the cheapest markets on southbound routes. Here a fixed discount set in the contract applies, making Czechia a model country for filling up. More in the guide to tolls and fuel in Czechia.
Slovakia
Price level: low. Network: OMV. Excise: no refund. Slovakia is a natural stop on the Poland, Hungary, Balkans axis. The low price and dense OMV network make it a good place for a full tank. We described the practical pitfalls in the article transport to Slovakia 2026.
Slovenia
Price level: medium. Network: OMV. Excise: refund available for vehicles over 7.5 tonnes (around 108 EUR per 1,000 litres). Slovenia combines a moderate price with a real excise refund, so in net terms it is very favourable on routes to Italy and Croatia.
Hungary
Price level: medium. Network: OMV and Avanti. Excise: refund available for vehicles over 7.5 tonnes (variable rate). Hungary is an important transit hub towards Romania, Serbia and the Balkans, and the excise refund improves its position in net terms.
Romania
Price level: medium. Network: Petrom and OMV (the largest network in the country). Excise: national partial excise refund scheme for carriers. Romania has the densest Petrom network, a major advantage on long domestic routes.
Serbia
Price level: medium (outside the EU, regulated price). Network: OMV. Excise and VAT: non-EU settlements, where card documentation is key. Serbia is a major Balkan corridor (Corridor 10), and the card simplifies cashless fueling without dinars.
Layer 2: the ROUTEX network, 34 countries and over 21,000 stations
ROUTEX is the shared acceptance network of OMV, BP, Aral, Eni and Circle K. In total that is over 21,000 stations in 34 countries, including around 7,600 sites adapted for trucks and buses and acceptance with most road toll operators. As a result, one card covers domestic fueling and long export routes.
Below are the ROUTEX countries most important for carriers, with information on excise refunds for vehicles over 7.5 tonnes:
| Country | Excise refund (>7.5 t) | Note for the fleet |
|---|---|---|
| Germany | no | dense Aral and BP network, good truck stops |
| France | yes (approx. 155 EUR/1,000 l) | after the excise refund, genuinely much cheaper |
| Belgium | yes (approx. 191 EUR/1,000 l) | the highest excise refund in the region |
| Italy | yes (variable rate) | Eni network, quarterly refund |
| Spain | yes (regional) | low base price plus refund |
| Croatia | yes (variable) | favourable on Adriatic routes |
| Slovenia | yes (approx. 108 EUR/1,000 l) | medium price plus refund |
| Hungary | yes (variable) | transit hub plus refund |
| Netherlands | no | fuel minimally, very expensive |
| Luxembourg | no | cheaper than neighbours, a classic stop |
| Switzerland | no | outside the EU, separate settlements |
| Poland | no | usually cheap diesel, departure base |
| Czechia | no | very cheap, card discount |
| Slovakia | no | cheap, good point for a full tank |
| Austria | no | expensive, fuel minimally |
| Romania | national scheme | dense Petrom network |
| Greece | no | Eni and BP network |
| Portugal | partial scheme | BP network |
| Denmark | no | very expensive, fuel before entering |
| Sweden | no | Circle K network |
| Norway | no | outside the EU, very expensive |
| Finland | no | the most expensive diesel, fuel earlier |
| Estonia | no | Circle K network, medium price |
| Latvia | no | Circle K network |
| Lithuania | no | Circle K network |
| Ireland | no | Circle K and partners network |
| United Kingdom | no | outside the EU, customs checks |
| Serbia | non-EU | Balkan corridor |
| Turkey | non-EU | the network’s far edge |
The ROUTEX network covers 34 countries in total, including markets of lesser transit importance. The key point for a carrier is that one card is enough for all of Europe, and you choose where to fuel cheapest in net terms.
Lever 4: foreign excise refunds
This is the lever many carriers forget about, and one that can finance part of the fleet’s costs on its own. Vehicles over 7.5 tonnes can recover part of the excise paid on fuel filled abroad. The basis for the claim is the orderly, currency-converted invoices from the fuel card.
| Country | Estimated excise refund per 1,000 litres |
|---|---|
| Belgium | around 191 EUR |
| France | around 155 EUR |
| Slovenia | around 108 EUR |
| Croatia | refund available, variable rate |
| Spain | refund available, regional rate |
| Hungary | refund available, variable rate |
| Italy | refund available, variable rate |
This is why France, despite its high pylon price, can be genuinely cheaper after the excise refund than a country with a lower gross price but no refund. EU excise rates change several times a year, so settle refunds regularly and with up-to-date data.
Lever 5: VAT deduction
An invoice from a fuel card that meets the criteria of an accounting document lets you deduct VAT without collecting separate receipts.
- Trucks used exclusively for business: deduction of up to 100 percent.
- Passenger cars also used privately: typically 50 percent, while full deduction requires mileage records and exclusive business use of the vehicle.
On top of that comes the foreign VAT refund on fueling outside the country of registration. The consolidated, currency-converted invoices from the card are a ready basis for such a claim, eliminating manual exchange-rate conversion and the collection of documents from several countries.
Lever 6: deferred payment and liquidity
Cheap fueling is not only about a lower price, it is also about the moment of payment. The OMV card gives a deferred payment term of up to 30 days. In practice you fuel today and pay a month later with a single consolidated invoice. Money stays in the company longer, which at fleet fuel volumes genuinely improves liquidity and reduces the need for working capital financing.
This effect matters especially when fuel prices spike. How to recalculate the rate per kilometre during sharp price changes, we showed in the article fuel prices skyrocketed, how to recalculate the rate per km.
Lever 7: AdBlue, tolls, control and the end of fuel theft
The final lever is everything that happens around the litre itself.
- AdBlue settled cashlessly together with fuel on a single invoice.
- Road tolls thanks to matched EETS devices, combining fuel and tolls in one settlement. We described the context in the article on the Netherlands road toll changes and the OMV SmartPass and in the guide to road toll cost optimization in Europe.
- Limits and blocks per card protect against abuse and fuel theft.
- PIN authorization secures transactions in case a card is lost.
- Per-vehicle reports reveal unusual fueling, for example a fill larger than the tank capacity, a classic theft signal.
- Real-time notifications allow an immediate reaction.
Fuel theft and unauthorized fueling are, in many fleets, a silent cost of several percent of the fuel budget. Limits, reports and control in the OMV Fleet Online Services portal close that gap.
Example: how much a fleet of 10 trucks saves
Assume a fleet of 10 vehicles, each fueling 4,000 litres a month, 40,000 litres a month in total and 480,000 litres a year.
| Lever | Assumption | Annual benefit |
|---|---|---|
| Fixed and card discount | 0.05 EUR/l on average | 24,000 EUR |
| Excise refund | 30 percent of volume abroad, avg. 130 EUR/1,000 l | approx. 18,700 EUR |
| Foreign VAT deduction | orderly invoices | tens of thousands of EUR |
| Deferred payment | 30 days on the volume | liquidity improvement |
| Reduced theft | 2 percent fewer losses | approx. 7,000 EUR |
This is a conservative scenario, and the total still runs into hundreds of thousands of zloty (tens of thousands of euros) a year.
The most common mistakes in fleet fueling
- Looking at the pylon price instead of the net cost. After VAT and excise the country ranking looks different.
- Fueling at the nearest service area. Stations at junctions are more expensive, route planning is a saving.
- Skipping the excise refund. That is real tens of thousands a year lost without invoices.
- No mileage records. Without them you lose the full VAT deduction on passenger cars.
- Comparing discounts only. Count the full cost of the card, because fixed fees can eat up the entire discount.
- Open limits on the cards. That is an invitation to abuse and fuel theft.
- Paying cash abroad. You lose the card price, the refunds and the order in your documents.
How to start fueling cheaply: the OMV card through ONYX
Ordering the OMV fuel card through ONYX takes three steps:
- Fill in the form on the ONYX fuel cards page and provide your basic company details.
- Sign the contract online, with no branch visits.
- Receive the card within 7 business days and fuel cheaper from the first litre.
Want to tailor discounts, limits and toll devices to your fleet? Contact the ONYX experts, and we will prepare a card configuration for your routes and vehicles. If you manage a larger fleet, combine the card with the ONYX telematics system so that fuel and toll costs are visible already at the order quotation stage.
FAQ: the most common questions about cheap fueling
How do you fuel cheaply in a transport company?
You fuel cheapest when you combine five levers at once: card price, fixed and volume discount, fueling in cheaper countries, foreign excise refunds for vehicles over 7.5 tonnes, and full VAT deduction. The OMV card brings this into one tool with a payment term of up to 30 days.
Where is the cheapest place to fuel in Europe in 2026?
Prices change every week, and you will find current averages in the European Commission Weekly Oil Bulletin. Fuel is usually cheaper in Poland and Central Europe and more expensive in Western and Northern Europe. Remember, though, that after the excise refund and VAT deduction the real net ranking looks different, and France, Belgium and Italy climb up.
Why is the pylon price misleading for a carrier?
Because it includes VAT and full excise, which the company recovers in part or in full. A country with a higher gross price but a high excise refund can be genuinely cheaper. Always calculate the net cost per litre.
In how many countries can I fuel with the OMV card?
At card prices in 7 countries: Austria, Czechia, Slovakia, Slovenia, Hungary, Romania and Serbia (the OMV, Avanti, Diskont and Petrom network), and in the ROUTEX network in over 21,000 locations across 34 countries, including around 7,600 sites for trucks and buses.
In which countries will I recover excise?
The refund for vehicles over 7.5 tonnes is available in Belgium, France, Italy, Slovenia, Croatia, Hungary and Spain, among others. Rates are variable, and the basis is the card invoices.
Is a cheap fuel card worth it for a small company?
Yes. The card needs no minimum volume and has no limit on the number of cards, so even a one-vehicle company fuels cheaper, has a single invoice and deferred payment.
How do you avoid expensive motorway stations?
Plan the route and fueling in a telematics system with the map of stations within the card’s reach. The driver then fuels at cheaper points along the corridor instead of under the pressure of an empty tank at the nearest, most expensive service area.
Bibliography and sources
| Source | Description | URL |
|---|---|---|
| European Commission | Weekly Oil Bulletin, EU fuel prices | energy.ec.europa.eu |
| ROUTEX | Acceptance network of OMV, BP, Aral, Eni, Circle K (34 countries) | routex.com |
| OMV | Fleet card offer and benefits | omv.com/portfolio/cards |
| OMV Fleet Online Services | Real-time card management portal | fleet.omv.com |
| ONYX | OMV fuel cards in the ONYX offer | onyxtms.com/en/fuel-cards |
