As per CRA (Canada Revenue Agency),

Each person living in the dwelling can claim the basic residency amount as a deduction on their return. However, if more than one person claims the basic residency amount for a particular period and dwelling, no one in that household can claim the additional residency amount for that period and dwelling.

For full information view link below:

https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/about-your-tax-return/tax-re...

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