SBI Online Income Tax Return Filing Service - SBI e-File provides a convenient method for filing online IT return service at no cost to its customers. This FREE service brought in association with an e-Return intermediary (ERI) approved by the IT Department. If you pay a nominal charge Rs. 150/-, all salaried customers can avail Bank Assisted e-filing services. When you file your returns early ie., prior 31st July, you can avoid paying interest on self-assessment tax and faster refund if any.