Deductions & credits

I was referring to your comment that foreign taxes associated with social security benefits were not be eligible for the foreign tax credit if there was a treaty:

I haven't research the matter, but from what you posted, it appears that the foreign tax credit would not apply to you, and if so you don't need to enter anything regarding it on your tax return. I imagine this has to do with the treaty that gives you a benefit, so you don't get an additional benefit in the form of a tax credit.