Langenfeld has no public debt as of October 3, 2008. The debt clock installed at the City Hall in 1997, showing the current debts of Langenfeld, the Rhineland, and the national debt, got demounted end of 2008 and handed over to Grevenbroich. In Langenfeld it had served its purpose, so the comment by former mayor Magnus Staehler. The town was honored for that with the prize Kommune des Jahres 2007 (Municipality of the Year 2007) in the national contest Großer Preis des Mittelstandes (Grand Prize by Small Firms and Traders) of the Oskar-Patzelt-Siftung. To achieve that goal, on the one hand taxes got raised and in addition cuts of subsidies to clubs applied, so that debts halved from 1997 up to 2002. Being free of debt, and with that regaining free hand, was celebrated with a big party for the citizens at the first weekend in October under the slogan "Golden Times". Up to 2013 the savings from that surpluses had strongly diminished again by the budget deficits of the following years.
Langenfeld is accessed by nearby highways A 3, A 59 and A 542, as well as the Bundesstrasse (federal route) B8. The mainline railway from Düsseldorf to Cologne runs through the town's area as well. Public transport is provided by the S-Bahn line S6 and various bus lines operating under the umbrella of the VRR.