You can only claim the spousal amount if you are married or you are in a common-law relationship.
Claim this amount if, at any time in the year, you supported your spouse orcommon-lawpartner and their net income from line 23600 of their return (or the amount that it would be if they filed a return) was less than your basic personal amount (plus$2,350 if they were dependent on you because of an impairment in physical or mental functions).