GSTR2A reflects the purchases and is reflected automatically for each business on the GST portal. The GSTR1 filed by every seller gets captured in the GSTR2A. The purchase of goods/ services in a given month is taken from the sellers GSTR1 and is auto populated in GSTR2A. The GSTR2A is a read only Return which cannot be edited and therefore is only for reference purpose and reflects list of all invoices from various sellers during the month and therefore one doesn’t have to file GTSR2A. The option of downloading copy of GSTR2A is available on the portal.
In case the seller delays in filing the GSTR1 it will not reflect in your GSTR2A and therefore there will be a mismatch while claiming ITC. As while filing GSTR3B one has to match the actual ITC claimed in books with the ITC that reflects in the GSTR2A. Non filing or delay in filing of GSTR1 thereby restricts the auto reflection of ITC in GTSR2A. It is important under the GST framework for the taxpayer to reconcile the ITC claimed in Form GTSR3B and Form GSTR2A. GST3B being a summary return the amount of ITC that is disclosed in Table 4(A)(5) should match with tax details in for GSTR2A.