Interest rate has been increased from 13 percent to 18 percent vide Notification No.14/2011. This Notification shall come into force from 1-4-2011. This means that rate of 18 percent will be applicable from date 1-4-2011 as this notification does not have any retrospective effect.
Therefore, the rate applicable for interest upto 31-03-2011 will be rate prescribed in Notification No.26/2004 i.e. rate of 13 percent and thereafter from 1-4-2011, the applicable rate will be 18 percent for interest payment.
As regards the date from which the interest will be charged is concerned, it will be the due date from which the Service tax becomes payable i.e. the due date prescribed under Rule 6 of the Service Tax Rule, 1994.
Above said Rule 6 reads as:
6. Payment of service tax. -
1 (1) The service tax shall be paid to the credit of the Central Government,-
(i) by the 6th day of the month, if the duty is deposited electronically through internet banking; and
(ii) by the 5th day of the month, in any other case,
immediately following the calendar month in which the 22[service is deemed to be provided as per the rules framed in this regard]:
Provided that where the assessee is an individual or proprietary firm or partnership firm, the service tax shall be paid to the credit of the Central Government by the 6th day of the month if the duty is deposited electronically through internet banking, or, in any other case, the 5th day of the month, as the case may be, immediately following the quarter in which the 23[service is deemed to be provided as per the rules framed in this regard]:
Thus, in case of Company, the interest will be charged from 5th/6th of June,2010. However, in case of other assesse, it will be charged from 5th/6th of July, 2010.