Credit and debit notes :

(1) Where a tax invoice has been issued for supply of any goods and/or services and the taxable value and/or tax charged in that tax invoice is found to exceed the taxable value and/or tax payable in respect of such supply, the taxable person, who has supplied such goods and/or services, may issue to the recipient a credit note containing such particulars as may be prescribed on or before the thirtieth day of September following the end of the financial year in which such supply was made, or the date of filing of the relevant annual return, whichever is earlier:

Provided that no credit note shall be issued by the said person if the incidence of tax and interest on such supply has been passed by him to any other person.

(2) Where a tax invoice has been issued for supply of any goods and/or services and the taxable value and/or tax charged in that tax invoice is found to be less than the taxable value and/or tax payable in respect of such supply, the taxable person, who has supplied such goods and/or services, shall issue to the recipient a debit note containing such particulars as may be prescribed on or before the thirtieth day of September following the end of the financial year in which such supply was made, or the date of filing of the relevant annual return, whichever is earlier.

(3) Any registered taxable person who issues or receives a credit or debit note in relation to a supply of goods and/or services shall declare the details of such credit or debit note, as the case may be, in the return for the month during which such credit or debit note has been issued or received or in the return for any subsequent month but not later than September following the end of financial year in which such supply was made, or the date of filing of the relevant annual return, whichever is earlier, and the tax liability shall be adjusted in the manner specified in this Act.