Full text
For the purposes of section 56, this section and subsection 118(5), the amount determined by the formula A - B where A is the total of all amounts each of which is an amount (other than an amount that is otherwise a support amount) that became payable by a person in a taxation year, under an order of a competent tribunal or under a written agreement, in respect of an expense (other than an expenditure in respect of a self-contained domestic establishment in which the person resides or an expenditure for the acquisition of tangible property, or for civil law corporeal property, that is not an expenditure on account of a medical or education expense or in respect of the acquisition, improvement or maintenance of a self-contained domestic establishment in which the taxpayer described in paragraph (a) or (b) resides) incurred in the year or the preceding taxation year for the maintenance of a taxpayer, children in the taxpayer’s custody or both the taxpayer and those children, if the taxpayer is the person’s spouse or common-law partner or former spouse or common-law partner, or where the amount became payable under an order made by a competent tribunal in accordance with the laws of a province, an individual who is the parent of a child of whom the person is a legal parent, and B is the amount, if any, by which the total of all amounts each of which is an amount included in the total determined for A in respect of the acquisition or improvement of a self-contained domestic establishment in which the taxpayer resides, including any payment of principal or interest in respect of a loan made or indebtedness incurred to finance, in any manner whatever, such acquisition or improvement exceeds the total of all amounts each of which is an amount equal to 1/5 of the original principal amount of a loan or indebtedness described in paragraph (a),