14 January 2012
Yes you can set off service tax payable against service tax paid on telephone bills and on other input or input services as per CENVAT credit Rules. However you should ensure that same input and input services should be used for providing output services and should not be used for personal benefit of employees of the firm.
In addition to that you should also ensure that payment for such input or input services should be made within 90 days of date of invoice.