As per CRA- If the amounts on your foreign income slip are reported in a foreign currency, convert them to Canadian dollars before you enter them. If the amount was paid at various times throughout the year, use an average annual exchange rate.
- For foreign non-business income that is not on a T-slip (including US social security), do not convert the amounts to Canadian dollars before you enter them. TurboTax converts the amounts automatically based on the exchange rate you enter.