I just went through the annual horror story. What works for multiple countries is to report it all as a single country. Just make sure your country of choice has a high enough withholding to make it work. Canada is a good choice. If the IRS wants detail they will ask and my explanation will be that that it is impossible to file on line without forcing the filing into the software. Another nuance that showed up this year was the requirement for adding our tax basis for all stock and then for only that portion that produces foreign dividends. I don't recall this from prior years. In short, Congress has created a mess and Turbo Tax has not made it very easy to navigate the mess. It took me several hours to get through this, but it was worth it.
