Stamp Duties Act 1923

If the result of an assessment relating to an instrument is that the instrument is not chargeable with duty, the instrument may be stamped by the Commissioner with a particular stamp denoting that it is not chargeable with duty.

If the result of an assessment relating to an instrument is that the instrument is chargeable with duty or further duty, the instrument is, on payment of any duty or further duty payable in respect of the instrument, to be stamped or further stamped in accordance with the assessment, and, when so stamped, may also be stamped by the Commissioner with a particular stamp denoting that it is duly stamped.

If the result of an assessment relating to a stamped instrument is that duty or further duty is chargeable in respect of the instrument, the instrument is, from the date of the assessment until the duty or further duty is paid and the instrument is further stamped, to be taken to be insufficiently stamped, and this subsection applies despite the fact that the instrument has already been stamped, whether under this section or another provision of this

Every instrument stamped with the particular stamp denoting either that it is not chargeable with duty or that it is duly stamped shall, subject to subsection (3), be admissible in evidence and shall be available for all purposes, notwithstanding any objection relating to duty.

An instrument on which duty has been assessed by the Commissioner cannot be stamped except in accordance with that assessment unless the