In 2018 I got a decent, but reasonable refund. I live in Oregon, and that was the first year of the "transit tax," which was in box 14 of my W-2s. Turbo Tax has admitted to making mistakes during this time, and failed to fix the problem or help any other issues. With that being said, I filed. weeks later, Turbo tax sent a "critical notice" email saying I needed to amend my taxes. this was a year ago, and I have not yet gotten a letter from DOR or IRS, but I do have to pay back my entire 2018 refund, and then some. What can I do? they really dropped the ball on this.