I know you said award, but just as a reference, these are the taxes of a normal LGA-YYZ fare chosen at random:

Fare (A1): AA NYCYTO Q14AQNR fare (rules) $128.70
Tax: US Transportation Tax $9.65
Fare (B1): AA YTONYC Q14AQNR fare (rules) $128.70
Tax: US Transportation Tax $9.65
Tax: US September 11th Security Fee $2.50
Tax: US Passenger Facility Charge $4.50
Tax: Canadian Air Travelers Security Charge C$8.42
Tax: Canadian Goods and Services Tax C$1.20
Tax: Toronto Airport Improvement Fee C$20.00
Tax: US Immigration Fee $7.00
Tax: USDA APHIS Fee $5.00
Tax: US Flight Segment Tax $6.80