233. Where at a particular time a registrant makes a taxable supply of an immovable by way of sale, other than a supply deemed under section 259 or 262 to have been made, the registrant may claim an input tax refund for the reporting period in which tax in respect of the supply became payable equal to the amount determined by the formula
For the purposes of this formula,(1) A is the lesser of(a) an amount equal to the amount, if any, by which the total determined under subparagraph i exceeds the total determined under subparagraph ii:i. the total of the tax that was payable by the registrant in respect of the acquisition of the immovable and the tax that was payable by the registrant in respect of improvements to the immovable or, where the registrant was deemed under any of sections 223 to 231, 258, 261 and 273 to have made a supply of the immovable at an earlier time, the total of the tax deemed under that section to have been collected by the registrant at that earlier time and the tax that was payable by the registrant after that earlier time in respect of improvements to the immovable;
ii. the total of all rebates in respect of tax referred to in subparagraph i that the registrant has claimed or is entitled to claim under Division I of Chapter VII;
(b) an amount equal to the tax collectible by the registrant in respect of the taxable supply by the registrant of the immovable; and
(2) B is percentage that, immediately before the particular time, the use of the immovable, otherwise than in commercial activities of the registrant, was of the total use of the immovable.
This section does not apply to a public sector body unless it has made an election under sections 272 to 276.