Is there ? http://ihcm.ae/?page_id=23 Nortriptyline 25 Officials stressed that the $900 billion worth of $100 bills currently in circulation will remain good and will only be gradually phased out as worn-out bills are returned to Fed facilities. The $100 bill is the largest U.S. denomination in circulation and has the longest life at 15 years. The $1 bill lasts 5.9 years.