As of 1 January 2026, the fiscal framework for company cars has changed fundamentally. All tax benefits for vehicles with internal combustion engines have been completely abolished. Not only has tax deductibility been reduced to 0%, but the multiplier used to calculate the CO₂ contribution has also increased from 2.75 to 4.
This is not a marginal adjustment, but a structural shift. Electric vehicles are becoming the definitive standard within the Belgian company car fleet.
Electrification is no longer a future scenario
This evolution is already clearly visible in practice. At TraXall Belgium, we manage more than 23,000 company vehicles and 95% of new customer orders are now fully electric.
However, we observe that many companies still base their decisions on incomplete TCO calculations, a significant risk as 2026 approaches.
TCO: more than a lease price
Total Cost of Ownership goes far beyond the monthly lease cost. Especially in a rapidly changing regulatory environment, a correct TCO calculation must take into account, among other things:
- energy consumption
- non-recoverable VAT
- CO₂ contribution
- tax on disallowed expenses
- charging costs and charging strategy
- the actual usage profile of the driver
Without this full picture, decisions that seem logical in the short term can lead to higher mobility costs and unexpected budgetary impacts in the medium term.
TCO as a strategic steering instrument towards 2026
Accurately calculating TCO per vehicle will become crucial in the run-up to the mandatory mobility budget. Companies will increasingly need to weigh their car policy against alternatives such as cash, public transport or other mobility solutions.
An objective and comprehensive TCO therefore becomes the starting point for strategic decision-making.
“The speed at which regulations are changing makes it particularly challenging for companies to make the right decisions,” says Leomont Wouda, Managing Director of TraXall Belgium.
“Our role as a full-service fleet management partner is to translate that complexity into clear and comparable cost insights per vehicle.”
Electric vehicles are not immune either
Anyone who believes the challenge ends with the transition to electric vehicles is mistaken. From 2027 onwards, the 100% tax deductibility of electric vehicles will gradually decrease, reaching 67.5% by 2031.
Companies that already analyse data, model scenarios and adjust their car policy today will retain far greater control over their future mobility costs.
2026 is not an endpoint, but the beginning of a new company car model.
Electrification is only one element of that model. The real difference lies in insight, data and strategic choices.
A well-considered TCO calculation is not an administrative exercise, but an essential lever to keep mobility affordable, predictable and future-proof.