Here's information from the TurboTax in product Help
Schedule 1: Line 363 - Canada employment amount
Entering this Amount
If it applies to you, this amount is claimed automatically based on information you entered from your T-slips.
The Canada Revenue Agency says...
General Income Tax and Benefit Guide
Claim the
lesser of:
- $1,127; and
- the total of the employment income you reported on lines 101 and 104 of your
return.