7、expenseshallbematchedordistributed.Thedeductibleexpensesthatthetaxpayershalldeclareinacertaintaxyearshallnotbedeductedearlierorlater. (3) Principleofrelevance:Theexpensesthatthetaxpayermaydeductshallberelevanttothetaxableincomeinnatureandatroot. (4) Prin