(Month(Date()) in ( 1, 2, 3) and YourTableDate between Dateserial(year(date())-1,9,1) and dateserial(Year(date()), 1,1)-1)
or (Month(Date()) in ( 4, 5, 6) and YourTableDate between Dateserial(year(date()) ,1,1) and dateserial(Year(date()), 4,1)-1)
or (Month(Date()) in ( 7, 8, 9) and YourTableDate between Dateserial(year(date()) ,4,1) and dateserial(Year(date()), 8,1)-1)
or (Month(Date()) in (10,11,12) and YourTableDate between Dateserial(year(date()) ,7,1) and dateserial(Year(date()),10,1)-1)