Duties Act 1997 No 123
Current version for 1 July 2019 to date (accessed 6 June 2020 at 22:24)
Chapter 7 Part 2 Section 214
214   Mortgage packages
(1)  The Chief Commissioner must, at the liability date for a mortgage, assess the mortgage, together with any other instruments of security, as a mortgage package if the mortgage and other instruments secure or partly secure the same money.
(2)  This section applies regardless of when the other instruments of security were first executed.
(3)  Duty on a mortgage package is to be assessed under this Part as if the instruments comprising the mortgage package, to the extent that they secure the same moneys, were a single mortgage.
(4)  One of the mortgages in the mortgage package is to be stamped, or upstamped, with any ad valorem duty paid under this Act for the mortgage package and each other mortgage in the mortgage package is to be stamped as a collateral mortgage.
(5)  If any of the mortgages in the mortgage package partly secures other moneys, that mortgage is to continue to be treated as a separate mortgage under this Chapter in respect of the other moneys that it secures and may be stamped for the duty chargeable in respect of those other moneys.