Tally implementation

I want aging analysis in my tally.
We can generate aging analysis directly but the mistake I have done is that when I had entered sales invoice and when amount was received against it , due to mis match in amount of sale invoice and amount which I received .I had to enter "on account " receipt of amount.
Is there a method where through FIFO method irrespective of selection of" ON ACCOUNT "...AGING ANALYSIS SHOULD APPEAR CORRECTLY.