Deadline for Filing EXP 2 and EXP 4 Forms for Service Tax: Submit by October 15, 2014, for Half-Year Ending September 30. A user inquired about the deadline for filing EXP 2 and EXP 4 forms related to service tax. The response clarified that these forms for the half-year ending on September 30, 2014, must be submitted by October 15, 2014. (AI Summary)