Section 136.2 — Excise Tax Act: Supply of real property partly outside province

For the purposes of determining in which participating province, if any, a taxable supply of real property is made and determining the tax payable, if any, under subsection 165(2) in respect of the supply for the purposes of this Part, where the supply includes the provision of real property situated in a particular province and real property situated in another province or outside Canada, the provision of the part of the real property that is situated in the particular province and the provision of the part of the real property that is situated in the other province or outside Canada, as the case may be, are each deemed to be a separate taxable supply made for separate consideration equal to the portion of the total consideration for all the property that is reasonably attributable to the part.