Deductions & credits

Thank you so much for this reply. I saw this info elsewhere about an hour ago, and have been trying to read about it and understand it. If I want to claim a credit for tax paid in 2023, then I guess I put my 2023 income on Form 1116, though that tax was on 2022 income... but I'm afraid the IRS will think I had twice as much income in 2023 as I actually had!  and Turbotax is making it worse. So I'm also researching maybe just going the other way, and deducting my US tax payment from Portuguese taxes due this year.  Thanks again, I really appreciate it!