I lived with my spouse during 2017 and her parents arrived in Canada as new permanent residents during 2017. They are both under 65 years, but depended on us for basic living. They made zero income and both are healthy. Can either of us claim them as eligible dependants? Does it matter if we may be claiming the spousal credit?
You can only claim an eligible dependent if you do not have a spouse. Below is the information from the CRA website.
You may be able to claim this amount for one other person if at any time in the year you met all of the following conditions at once:
In addition, at the time you met the above conditions, the dependant must also have been either: