Please follow the below path, To  create the fee plan with the branch level access

Path: Branch level--> Finance--> Fee Management--> Manage Fee Plans--> Select Academic Year, Type of Fee Plan--> Click on "Get"---> View Regular Fee Plans--> Click on +Regular Fee Plan--> Enter Fee Plan Name--> Select Applicable to, Select Classes, Fee Type, Enter amount, Select Is Mandatory  Fee Yes/No----> Click on Save & Continue