Every registered person, other than an Input Service Distributor or a Non-Resident taxable person or a person paying tax under the provisions of section 10 (Composition taxable person) or section 51 (TDS) or section 52 (TCS), is required to file Form GSTR-2 (Statement of Inward Supplies), on a monthly basis, prepared on the basis of auto-populated details
from the Form GSTR-1 of the suppliers after accepting, modifying, rejecting, or keep pending such data.
Receiver taxpayers can also add inward supplies and credit or debit notes received for supplies that are not declared by the supplier taxpayer in Form GSTR-1.
Recipient is also required to declare his claim of ITC on inward supplies in Form GSTR-2.
Form GSTR-2 needs to be filed even if there is no business activity (Nil Return) during a given tax period.