Canada Emergency Response Benefit (CERB) is benefits for loss of Employment due to COVID-19.
CERB is taxable, even on reserve.
It clearly states when applying that if found “Ineligible” repayment is required.
If they are found to be ineligible “later” they will have to repay the money. Unfortunately, people are applying and getting the money even though they don’t qualify.
Paying it back, if you do not qualify:
Those who are collecting CERB who do not qualify, risk having to pay it all back and CRA will take money from their sources such as GST and Child Tax if money is owing.