Hi I called IRS when my husband started receiving OAS and Social Security from Canada. I was told to add the amounts deposited into our bank account (due to the exchange rate) and add that amount to his US Social security and report it together. Because it is Social security benefits not all is taxable. By reporting it on this line turbo tax is able to compute how much is taxable. I have been reporting it this way for 15 years and have never had a problem with IRS. Hope this helps.
