135.3.3.A taxpayer who, under section 350.49 of the Act respecting the Québec sales tax (chapter T-0.1), is required to file an information return in respect of a supply referred to in that section, may not deduct or otherwise take into account in computing the taxpayer’s income for a taxation year, an amount that the taxpayer is required to declare in the information return if the taxpayer has not filed the information return in accordance with that section 350.49 or if, in the information return, the taxpayer did not declare the amount or did not furnish any of the other information required in respect of the amount.