X0101 24F-2NT LIVE 0001501650 XXXXXXXX 333-170983 false false S-6 First Trust Combined Series 345 120 East Liberty Drive Suite 400 Wheaton IL X1 60187 First Trust Combined Series 345 811-2541 333-170983 04/30/2022 true 0.00 130018.03 0.00 130018.03 0.00 (130018.03) 0.0000927 0.00 0.00 0.00 None Elizabeth H. Bull Elizabeth H. Bull, Senior Vice President 05/20/2022