Noun
TFN (plural TFNs)
(Australia) Initialism of tax file number.
In March 2003, Deron Beal (“Beal”) founded TFN, an umbrella non-profit Arizona corporation dedicated to “freecycling.” Source: Internet
TFN also maintains its own website, www.freecycle.org, which provides a directory of member groups as well as resources for volunteers to create new groups. Source: Internet