Urgent query

ayesha (mcom) (1185 Points)

30 May 2015  

if our company has nor paid service tax for financial year 2013-14 till today, then should we calculate interest @ 18 % or 30% from due date till now.

the rate change in interest rate notification was w e f 1 oct 2014 ,it was not retrospective ,so we have charges interest from 2013 till today @ 18 % flat.

plz advise