The only thing that gets me is that unlike EI, CERB is not taxed up front, so many low-income Canadians claiming it are going to owe taxes on it next year. I would rather it be taxed up front or tax-free for the recipients. People are really going to struggle when it comes back on them.
About the original 4-month term (with 2 additional months at 0.15% tax, $12000 works out to $1800 to pay back):
"A recipient who earns the maximum benefit of $8,000 will have to repay $1,200 at tax time."
https://www.ctvnews.ca/health/coronavirus/don-t-spend-it-all...