In the tax period April 2020 to March 2021, the transactions which consist of the tax period might be revised during furnishing the returns for September 2021 the last date for furnishing the GSTR-3B for September 2021 is 20 or 22 or 24 October 2021. After September 2021 returns there is no other claim of missing the input tax credit (ITC) which is available to get furnished. The taxpayer might lose the correct claim of any subject ITC that seems in his books of accounts and not claimed till furnishing of September 2021 GSTR 3B return.
Source Taxscan
