175.5. Where a work space is described in paragraph a or b of section 175.4, the amount in respect of the work space that is deductible by the individual or partnership referred to in that section in computing the income of the individual or partnership from the business referred to in that section for a taxation year or fiscal period, as the case may be, shall not exceed the lesser of(a) the aggregate of all amounts each of which is,i. where the individual or the partnership has made an expenditure, other than an expenditure of a capital nature, that may reasonably be considered to relate(1) both to the part of the establishment, other than the work space, and to the work space, the product obtained by multiplying the amount that would, but for this section, be deductible in computing the income of the individual or partnership from the business for the taxation year or the fiscal period, as the case may be, in respect of the expenditure, by 50%, or
(2) solely to the work space, the amount that would, but for this section, be deductible in computing the income of the individual or partnership from the business for the taxation year or the fiscal period, as the case may be, in respect of the expenditure, and
ii. the amount deducted by the individual or the partnership in computing the income of the individual or partnership from the business for the taxation year or the fiscal period, as the case may be, under paragraph a of section 130 or the second paragraph of section 130.1, in respect of the work space; and;
(b) the income of the individual or partnership from the business for the taxation year or the fiscal period, as the case may be, computed before deducting any amount referred to in subparagraphs i and ii of subparagraph a and without reference to sections 217.2 to 217.17.
For the purposes of subparagraph i of subparagraph a of the first paragraph,(a) an amount paid or payable by the individual or partnership as rent pertaining to the work space is deemed to be an expenditure that may reasonably be considered to relate to both the part of the establishment, other than the work space, and the work space;
(b) an expenditure, other than an expenditure of a capital nature, made by the individual or partnership, that may reasonably be considered to relate to both the work space in connection with the operation of a lodging establishment that is a tourist home, bed and breakfast establishment or participating establishment in a hospitality village, within the meaning of the regulations made under the Act respecting Tourist Accommodation Establishments (chapter E-14.2), and the part of the establishment, other than the work space, is deemed to be an expenditure relating solely to the work space if the individual or partnership holds a permit of the appropriate subclass to which the lodging establishment belongs, issued under that Act, or is a participant in a hospitality village covered by such a permit;
(c) an expenditure, other than an expenditure of a capital nature, made by the individual or partnership, that may reasonably be considered to relate both to the part of the establishment, other than the work space, and to the work space, including an amount paid or payable by the individual or partnership as lighting or heating costs, and that is not an expenditure in relation to the maintenance of the establishment, is deemed to be an expenditure that may reasonably be considered to relate solely to the work space.