Millions of Canadians are unexpectedly working from home because of COVID-19. They are turning their bedrooms, basements and kitchens into offices, and taking on increased household expenses to do their jobs. Canadians working from home can already deduct certain home office expenses for tax purposes, but first-time claimants may not be familiar with the rules and the claim process imposes an administrative burden on employers who are already dealing with the broader impacts of the pandemic and have to fill out additional information for their employees who qualify.
To simplify the process for both taxpayers and businesses, the CRA will allow employees working from home in 2020 due to COVID-19 with modest expenses to claim up to $400, based on the amount of time working from home, without the need to track detailed expenses, and will generally not request that people provide a signed form from their employers. This measure will help taxpayers access deductions they are entitled to receive and simplify the tax filing process. Further detail by the CRA can be found here: Introducing a simplified process for claiming the home office expenses for Canadians working from home due to the COVID-19 pandemic
This is taken from the Fall Economic Statement 2020