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1) Enter your T4 and scroll down to the bottom where you will be asked: Will you claim employment expenses for working at home due to COVID-19 for income on this T4? replay"yes"
2) Go to the Income section on the left side and click "Employment expenses" and continue.
3) Choose the T2202s form. and select "yes" in both questions asked below and continue.
4) Apply the "flat rate method" and enter the number of days you work from home and continue.
Please read this article about how much you can claim: T777-s Statement of Employment Expenses for Working at Home Due to COVID-19
