Serge de Carli advocates fair tax collection

Taxes, infrastructure or mobility, the mayor of Mont-Saint-Martin wants better cooperation with Luxembourg. Serge de Carli dreams of ending administrative obstacles to closer exchanges with the Grand Duchy.

Taxes for cross-border commuters

Thomas Berthold

Taxes, infrastructure or mobility, the mayor of Mont-Saint-Martin wants better cooperation with Luxembourg. Serge de Carli dreams of ending administrative obstacles to closer exchanges with the Grand Duchy.

A member of the French Communist Party since he was 17, Serge de Carli has no tongue in his pocket, he knows it himself. He has held elected office for 30 years, including the last 11 as mayor of Mont-Saint-Martin. He is in his fourth term. His commune of 9,500 inhabitants has almost 3,000 cross-border workers who cross the border every day to work in Luxembourg. “Fortunately, Luxembourg is there for employment. We are partners on this level,” emphasizes Serge de Carli.


Desk, train, station, CFL, public transport, TER, strike, Photo: Lex Kleren/Luxemburger Wort

Dependent employment in the Grand Duchy continues to grow. The country now has 212,343 cross-border workers, versus just over 245,000 resident workers.


The latter insists that discussing taxes with his neighbors is not an “objectionable subject”. “This file has been on the table for a long time, we have to a fair refund of the tax levied by Luxembourg on the salaries of cross-border workers for our community“. A legitimate claim for Serge de Carli, who recalls that these workers were largely trained in France and that it is thanks to the services of his community that these workers are in good health. The mayor also points out that this tax on the wages of frontier workers working in the Grand Duchy already exists for many Belgian border communes, including Aubange, which borders Mont-Saint-Martin.

This retrocession is all the more necessary at the household level as he recently had to increase the property interest rate by four points (now at 19.68 points) and that “the fragile population needs solidarity services”. “The average annual return on assets in Mont-Saint-Martin is 9,800 euros per inhabitant. The French communes near the canton of Geneva benefit from this tax and do not have to think when they renovate a road, for example. You have that leverage to respond to that,” explains Serge de Carli. In fact, since 1973, Geneva has transferred part of the tax levied on the income of cross-border commuters to neighboring French communes.


The mayor of Mont Saint Martin, Serge de Carli, wants more cooperation with Luxembourg.

The mayor of Mont Saint Martin, Serge de Carli, wants more cooperation with Luxembourg.

Photo: DR

The latter is also president of the Grand Longwy agglomeration with 73,000 inhabitants, including 17,000 cross-border workers. This is the second largest agglomeration in the department of Meurthe-et-Moselle after Greater Nancy. The elected official dreams of closer cooperation with Luxembourg, in particular by removing administrative obstacles to the creation of universities or cross-border crèches.

Facilities for more mobility

One of the important topics of this cooperation is the question of the mobility of cross-border commuters. “It’s an imperative otherwise we’re all still in lockdown tomorrow. It sometimes takes me almost an hour to get to Mont-Saint-Martin from Bascharage-Pétange.”

In order to improve the everyday life of cross-border commuters in the agglomeration, there is in particular the redesign of the forecourt of the Longovician train station. However, there is still one point to be finalized in this development, namely the P+R with 600 parking spaces, where cross-border commuters can park for free. “The car park is still in the planning stage, but there are still administrative difficulties with SNCF, which owns the property. It should be settled in the coming months, we are currently working on the file,” assures the President of Grand Longwy.



Audun-le-Tiche needs to be linked to a safe route for cyclists this summer. Led by the European Grouping of Territorial Cooperation Alzette Belval, the project aims to promote soft mobility for cross-border workers.


Another project to promote soft mobility is also in the works: a cross-border bike path. This should connect the communities of Aubange, Mont-Saint-Martin, Rodange and Pétange within two years.

For the future, Serge de Carli is striving for “a stronger exchange of information between France, Belgium and Luxembourg”. “We live together and not next to each other”, completes the Chosen One. And this friendship and “active collaboration” that the Mayor of Mont-Saint-Martin wishes to strengthen will be symbolized by a sculpture that will be installed in two years at the “Point Triple” where France, Luxembourg and Belgium meet. “This work will symbolize the European dream,” concludes Serge de Carli.

Longlaville Trail.

Photo: Town Hall of Mont Saint Martin

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