As per earlier provisions of service tax firm had to pay the amount due when it received the payment, however from 01/07/2011 payment was due as per billing and not when you receive the payment.
My question is does a firm has to pay service tax for Billing done in F.Y. 2009-10 & F.Y. 2010-11 for which payment has not been received till date? if yes what will be interest rate?