After the transfer window closed, Transfermarkt calculated the squad-building costs of the 18 Ligue 1 teams. The so-called squad-building cost refers to the transfer fees spent by a team to assemble its current squad.

Paris Saint-Germain's squad-building cost is €841 million, putting them far ahead in Ligue 1. Monaco are second with €248 million, while teams such as Strasbourg, Rennes and Marseille also have costs exceeding €150 million. Le Mans have the lowest cost at only €1.02 million.
Squad-building costs of the 18 Ligue 1 teams
1-Paris Saint-Germain, €841.02 million
2-Monaco, €248 million
3-Strasbourg, €185.4 million
4-Rennes, €176.55 million
5-Marseille, €157.35 million
6-Lyon, €149.98 million
7-Paris FC, €146.3 million
8-Lille, €123.1 million
9-Nice, €80.4 million
10-Lens, €71.9 million
11-Lorient, €53.55 million
12-Toulouse, €41.24 million
13-Auxerre, €25.9 million
14-Brest, €19.1 million
15-Troyes, €8.3 million
16-Angers, €4.45 million
17-Le Havre, €3 million
18-Le Mans, €1.02 million