As we all are aware, GSTR 3B is due to be filed on the 20th of the subsequent month. For the month of November, the GSTR 3B filing date is the 20th of December, for the month of December, the GSTR 3B filing date will be 20th of January, 2018 and so on. In our previous blogs, we have dealt with how to file GSTR 3B returns, how to match the same with other GST returns, how to correct it and the penalties involved for not filing GSTR 3B.