61. The Minister of Revenue may reassess the amount of an adult’s benefits(1) within three years after the date of mailing of a notice under section 58 or 59;
(2) at any time, if the adult who filed the return or statement misrepresented the facts by negligence or by willful omission, or if he has committed a fraudulent act in filing such return or statement or in furnishing any other information required by law;
(3) where, following an opposition served or an appeal filed by the adult, his spouse or a dependent child in respect of an assessment established under the Taxation Act (chapter I-3), the reassessment also affects the total income of, or the amounts received as work income replacement by, one of such persons;
(4) where a reassessment established under the Taxation Act (chapter I-3) results in an increase in the amount of the benefits.