IF CONDITION ON DATE

I am preparing Aging report in which paybles are on 30, 60 ,90 and 120 days. When using the IF condition for all the days . at the end of 120 days it will show in all the coloumn 30,60,90 and 120 as well. When it is 30 days all the 60,90 & 120 are empty this is ok. But what I need is a conditional formula if it is 90 days it should show in 90 days colomn and 30 & 60 days colomn should be empty.Like wise if the data is in 120 days all the rest 30,60 & 90 should be empty.