GSTR-2A is dynamic in nature, i.e., it changes as and when the supplier files his return for the corresponding month irrespective of date of filing of return. Therefore, GSTR-2A keeps on changing.
GSTR-2B is static in nature, i.e., it contains all purchases uploaded between 14th of the month till 13th of the following month irrespective of month of return and date of invoice.
Use for the purpose of availing ITC
GSTR-2A can’t be utilised for the purpose of claiming ITC.
Data auto-populated in GSTR-2B is to be used for claiming ITC in GSTR-3B. ITC appeared in GSTR-2B auto-populates in GSTR-3B while filing.
Availability of DATA
Details for ITC shall be available as soon as the supplier files the returns for its supply.
GSTR-2B shall only be available from 14th of the following month.
Inclusion of SEZ units data
The data for SEZ units will not be included in this return.
SEZ unit data will be included in GSTR-2B.
Bifurcation
GSTR-2A does not bifurcate the ITC between eligible ITC and Ineligible ITC.
GSTR-2B bifurcates the ITC into eligible and ineligible ITC.
Example
GSTR-2A can be amended by making changes in GSTR-1.
For Example: ITC of Z as per GSTR-2A for Jan, 2021 is INR 10,000 as on 28th Feb, 2021.
Supplier files GSTR-1 of January on 15th March, 2021 wherein ITC pertaining to Z is INR 2,000.
GSTR-2A of January, 2021 will update and reflect ITC of INR 12,000.
GSTR-2B cannot be amended; it remains constant for the tax period.
For Example: ITC of Z as per GSTR-2B for Jan, 2021 is INR 10,000 as on 28th Feb, 2021.
Supplier files GSTR-1 of January on 15th March, 2021 wherein ITC pertaining to Z is INR 2,000.
GSTR-2B of January, 2021 will remain the same, and such ITC of INR 2,000 will get incorporated in GSTR-2B of March, 2021.
Therefore, as per Rule 36(4), Z is entitled to claim ITC of INR 2,000 in the month of March, 2021 itself.