The new boxes for CESB and other Covid-19 related benefits are at the bottom of the T4A page. You may need to scroll down to see Box 198.
Sorry but it is not on the page even when you scroll down.
None of the Covid tax info was there for the T4’s or the T4A’s the first three times I tried. Then it magically appeared. Good luck!
Thanks! I guess i'll just have to keep trying until it appears.