Howdy,
I experienced the same issue. Had to log out of TT, clear browser cache, log back into TT, and re-do 1099-INT to fix it. Full description below:
TurboTax ran the last automated review step before e-filing, then gave the pop-up saying I had to pay & upgrade to Deluxe because I "had foreign assets." (I don't, and answered no to every question on the subject.) I saw the answers in this post, and went and deleted and manually re-entered my 1099-INT, and got the same Deluxe pop-up. I kept having to click "no" twice to get back to my return thruout this process.
Then I found my physical paper 1099-INT, took a pic, and uploaded that. It auto-filled some info, but I had to manually finish the rest. Clicked the "none apply" checkmark, and got the same Deluxe pop-up. Tried taking/uploading a different pic, and got the same result.
I dug deeper into other forum posts and saw notes stating browser cookies/cache could cause issues. I was using Firefox. (To be fair to TT, they did pop up a warning at the beginning stating Firefox was not a "supported browser.") I logged out of TT, went into Firefox Settings and cleared the cache (not cookies, but try that too if this doesn't work), logged back in, went back and manually re-did my 1099-INT once more. This time it took me to the questions about foreign assets again; I clicked "No" to everything again, then went to review and it finally let me file for free. Quite frustrating! But hopefully this helps somebody.
