Does your Canadian employer have a Canadian postal code? That's a 6 character code like "2A4 7S1" instead of the 5 or 9 digit US zip code.
Some users have difficulty entering the Canadian postal code on the W-2 because the sequence of events makes TurboTax believe that the entry should be a US zip code.
If you have a Canadian postal code and you are trying to enter the W-2, then try the following:
1. Delete the W-2
2. When you add a new W-2, the screen will ask you for the employer’s EIN. DON’T PUT ANYTHING HERE.
3. Instead, just leave the EIN field blank and continue.
4. Enter your complete W-2 information on the next page. Make sure to indicate that this is a foreign address (under “Address Type”). It’s OK to enter the EIN here at the top of the page.
5. Be sure you enter everything from the W-2 – the input screen is rather long and needs scrolling.