I received the Economic Impact Payments from the IRS. The amount isn't considered as taxable income on my IRS return, is it taxable foreign income on my CRA return?

Federal benefit to US citizens under the American Rescue Plan

After you file

 No, Economic Impact Payments are not tax-deductible and do not get included on your Canadian tax return. 
For more information on what constitutes foreign income please refer to the following Canada Revenue Agency (CRA) article: