Understand the calculation
Company-car benefit in kind in Luxembourg
Private use of a car provided by an employer is a taxable benefit in kind subject to social contributions. The flat-rate method starts from the vehicle’s new value including options and VAT, after any dealer discount.
Flat monthly rates used for 2026
| Vehicle | Condition | Monthly rate |
|---|
| 100% electric | Consumption ≤ 18 kWh/100 km | 0.5% |
| 100% electric | Consumption ≤ 20 kWh/100 km and power ≤ 150 kW | 0.5% |
| 100% electric | Other electric configuration | 0.6% |
| Plug-in hybrid | 2026 applicable regime | 2.0% |
| Combustion and other | Petrol, diesel, non-plug-in hybrid, etc. | 2.0% |
Two valuation methods
Flat rate: the vehicle’s catalogue value is multiplied by the monthly rate. Logbook: actual cost per kilometre is applied to private kilometres, determined by subtracting business travel from total mileage.
The calculator automates the flat-rate method. The logbook method requires the employer’s actual costs and mileage records.
Which vehicle value should you enter?
Use the vehicle’s new value including VAT and options, after any dealer discount. The same original base continues for a used vehicle; it is neither the current market value nor the monthly lease payment.
2026 rules and transitional vehicles
The current scale through 31 December 2026 applies 0.5% or 0.6% to fully electric cars depending on efficiency, and 2% to plug-in hybrids and other powertrains. Certain lease contracts signed by the end of 2024 for cars registered by 31 December 2025 may retain transitional rates linked to CO₂ and powertrain.
| Situation | Possible 2026 rate | Calculator setting |
|---|
| Electric · current regime | 0.5% or 0.6% | Automatic 2026 scale |
| Plug-in hybrid · current regime | 2% | Automatic 2026 scale |
| Combustion or other · current regime | 2% | Automatic 2026 scale |
| Contract / registration under former regime | 0.5% to 2% under retained rules | Confirmed custom rate |
The car’s model year alone is not enough. Check the lease contract, registration date and payroll rate before selecting a custom value.
How much does a company car cost the employee?
The real monthly cost has three parts: the personal contribution withheld from take-home pay, additional employee social contributions and extra tax generated by the benefit. It therefore depends on salary and tax class, not only the car’s price.
1
Net contribution
Contractual amount paid directly by the employee.
2
Additional contributions
The benefit enters the social base within the applicable limits.
3
Additional tax
The engine recalculates pay under the same 2026 tax model.
Company-car cost for the employer
The employer budget is not limited to the taxable benefit. It may include leasing, insurance, servicing, tyres, administration and, depending on the car policy, fuel or charging. Employer social contributions on the benefit are added, while the employee contribution reduces the cost borne by the employer.
The employer result covers the lease payment entered, employee contribution and additional social charges. Add all other costs separately for a complete fleet budget.
Monthly benefit comparison by vehicle
These figures compare the gross benefit before any employee contribution. They are not the employee’s additional tax or final net cost.
| Catalogue value | Electric 0.5% | Electric 0.6% | Hybrid / combustion 2% |
|---|
| €40,000 | €200 | €240 | €800 |
| €50,000 | €250 | €300 | €1,000 |
| €75,000 | €375 | €450 | €1,500 |
Employee contribution: official example
In the Guichet.lu example, the gross benefit is €435, the lease payment €600 and the employee contribution €150. The deduction is capped at 20% × (€600 − €150), or €90. The taxable benefit is therefore €345, while the full €150 is still withheld from take-home pay.
Check the example on Guichet.lu ↗Taxable-benefit formula
Taxable benefit = gross benefit − deductible employee contribution
For a fixed lease contribution, the deduction is the lower of the contribution and 20% of the employer’s remaining lease payment. The full contribution is still withheld from take-home pay.
Quick examples
- €50,000 electric car at 0.5%€250 monthly benefit
- €50,000 electric car at 0.6%€300 monthly benefit
- €50,000 combustion car at 2%€1,000 monthly benefit
- €50,000 combustion car, €800 lease and €150 contribution€870 taxable benefit after the cap
Why the take-home impact is lower than the benefit
The benefit is added to the tax and social bases but is not paid in cash. The employee therefore bears the additional contributions and estimated withholding, plus any contribution — not the full taxable value as a cash deduction.
Older contract or transitional regime
Some older vehicles can retain a rate linked to registration or contract dates. In that case, select a custom rate only when it has been confirmed by the employer, payslip or authority.
To compare remuneration without a benefit, open the gross-to-net calculator. Gross-to-net salary calculator.
Frequently asked questions
How is a company car taxed in Luxembourg?
Private use is a benefit in kind added to the employee’s tax and social-contribution bases. The employer applies the resulting contributions and wage-tax withholding through payroll.
How much does a company car cost the employee?
The net cost is the additional social contributions and tax generated by the benefit, plus any personal contribution withheld from take-home pay.
What is the monthly cost of a company car?
It depends on catalogue value, benefit rate, salary, tax class and employee contribution. The calculator compares annual net pay with and without the car, then divides the difference by twelve.
How do you calculate a company-car benefit in kind?
Under the flat-rate method, multiply the VAT-inclusive new value with options after discount by the applicable monthly rate. Then deduct only the fixed employee contribution allowed for tax purposes.
Is an electric company car tax-efficient in Luxembourg?
In 2026, eligible fully electric cars use a monthly rate of 0.5% or 0.6%, compared with 2% for plug-in hybrids and other powertrains under the current regime.
Who pays for a company-car lease?
The employer normally signs and pays the lease. The employee may pay a fixed contribution, fuel or other costs depending on the car policy and employment agreement.
Does a company car increase taxable income?
Yes. The taxable benefit is added to remuneration for tax and social-contribution calculations even though it is not paid in cash.
What happens when the employee contributes to the car?
The full fixed contribution is withheld from take-home pay. For leasing, the amount reducing the benefit is capped at 20% of the employer’s remaining lease cost; variable running-cost contributions do not reduce it.