Not Necessary. As per the Canada Revenue Agency (CRA): "The person with the lower net income(including zero income) must fill out parts A and B and claim the child care expenses unless one of the situations in Part C or D applies", Form T778, Child Care Expenses Deduction for 2021. Here are exceptions in specific situations where higher-income persons claim the expenses:
If thelower-income person was attending schoolfor a full-time or a part-time educational program,
If thelower-income person had an impairment or was sickand confined in a hospital bed for at least two weeks,
Ifthe lower-income person was confined in prisonfor at least two weeks, or
If both supporting parents were living separatelyby the end of the tax year due to a breakdown in the relationship