17 October 2020
GSTR 1:- For Quarterly return filers ( turnover up to 1.5 crores) - 13 Jan 2021 For Monthly Return - 11th Nov 2020 ( 11th of the subsequent month)
GSTR 3B - 20th of the following month < 5 crores 22 & 24 of the following months ( depends on states) for taxpayers with turnover up to 5 crores
CAclubindia
