The CRA issued a news release on December 15, 2020, outlining the 2 options for deducting home office expenses during the 2020 Covid-19 pandemic.
Employees who worked from home more than 50% of the time over a period of a least four consecutive weeks in 2020 due to COVID-19 will now be eligible to claim the home office expenses deduction for 2020.
There are two forms you can use. The existing T2200 for detailed claims, or the new T2200S for a temporary flat rate method.
Read the full details and find links to the Guide and Forms here: https://www.canada.ca/en/revenue-agency/news/2020/12/introducing-a-simplified-process-for-claiming-the-home-office-expenses-for-canadians-working-from-home-due-to-the-covid-19-pandemic.html