GST – GSTR-5/GSTR-6 / IFF if applicable for Sep 2026

GST | Period: Sep 2026
GSTR-5 for non-resident taxable person, GSTR-6 for ISD, and optional IFF for QRMP month 1/2 as applicable.

Source/check: https://tutorial.gst.gov.in/userguide/returns/GSTR_1.htm

Note: Standard due date; check latest notifications/extensions before filing.