Every January, numerous social «parameters» change.
This detailed note contains the 2023 values applicable to the TRM concerning:

• Employer contribution rates
• The «Fillon» tax relief formula»

In addition, the CNR calculates the change in driving personnel costs observed in January 2023 and their impact on vehicle production costs. 
Driving personnel costs (salaries, social security contributions and travel allowances) have risen significantly over the past year, increasing by approximately 16% between January 2022 and January 2023.
This inflation has had a significant impact on the cost price of a vehicle, excluding diesel, over the last 12 months: around +7% for a long-distance or regional articulated lorry and +8% for a regional truck.