Inward supplies reporting: recipients must electronically furnish and reconcile inward supply details, with prescribed correction and tax payment rules. Registered persons, excluding certain specified classes, must verify and electronically furnish details of inward supplies and related credit or debit notes (including reverse charge and integrated tax supplies) for each tax period in the prescribed post-period window; the Commissioner may extend this period by notification. Modifications, deletions or inclusions made by recipients must be communicated to suppliers as prescribed. Unmatched details that are later found erroneous must be rectified in the period discovered with payment of any tax and interest, but rectification is barred after the September return following the financial year or after the relevant annual return, whichever is earlier.