@ChasinSF I'm also dealing with a Canadian teacher's pension (Ontario). There is no "basis" in that pension (i.e. there were never any after-tax contributions to that pension) so the entire distribution is taxable, meaning that Line 1 and Line 2a are the same number. So in your example $1,000 would be entered in both boxes. Generally I get a US tax credit that is very close to the 15% tax that was withheld in Canada, but that's highly dependent on other aspects of your tax situation.
