CERB recipients may be asked to pay back extra money that they received from a mistaken double payment. 

221,320 people received the accidental double payment, according to the Employment and Social Development Canada (ESDC), which jointly administers the benefit with the Canada Revenue Agency (CRA).

The ESDC has revealed that the overpayments add up to at least $442.6 million.

According to iPolitics, the ESDC insisted that Service Canada and the CRA are "collaborating to ensure that these situations are reconciled," in response to an order paper question on the issue from Liberal MP Adam Vaughan.

The departments are currently working together to solve the overpayments by ensuring that people do not receive more than $12,000 maximum over a 24-week period.

However, the ESDC also states that anyone who does not have an overpayment automatically reconciled through this process will be "proactively" contacted with details on how to repay the amount owed.

CERB was initially launched in March to help supplement wages of those who lost work or had their hours reduced by supporting qualifying Canadians with up to $2,000 a month.

The Benefit is available from March 15, 2020 to October 3, 2020. People can apply no later than Dec. 2, 2020 for payments retroactive to within that period.