Input Tax Credit reporting: taxpayers must correctly declare ineligible ITC and reversals in GST returns to ensure fund settlement. Correct reporting of Input Tax Credit of IGST on interstate and import supplies in GSTR 3B is required because settlement and apportionment of IGST funds depend on these disclosures. Reversals under Rules 42/43 and Rule 37 must be reported in Table 4(B); ineligible ITC under Section 17(5) in Table 4(D)(1); and blocked or other ineligible credits under Section 17(4) and Rule 38 in Table 4(D)(2). Omissions for FY 2021-22 are to be rectified in GSTR 9; from FY 2022-23 onwards corrections must be made in the subsequent GSTR 3B by giving the net effect.