OK, let's look at unlikely, but possible possibilities.
1. Delete the two 1099-SA forms (or all of them if you have more than two. There has been a perhaps related issue this year that when you...
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OK, let's look at unlikely, but possible possibilities.
1. Delete the two 1099-SA forms (or all of them if you have more than two. There has been a perhaps related issue this year that when you try to add the second 1099-SA, it just edits the first 1099-SA. While that is not your issue on its face, long ago in programming, I learned that you fix the problem that you know and sometimes by magic the bigger problems go away.
2. While we are on the subject of the 1099-SA, how did you enter them? Did you auto-import them or did you enter them manually? I enter them manually so much that I forget that some people do it by import. The auto-import process fails occasionally (probably because the incoming form was created outside of TurboTax), so it's always a good thing to redo it by hand.
3. How did you tell TurboTax that you had Medicare? I am stumped on how TurboTax saw that you had no HDHP coverage (except perhaps with conflicting Medicare), yet did not decide that you had excess contributions.
3.A On the screen "Was Blank covered by a High Deductible Health Plan (HDHP) in 2025?", did you answer Yes or No? The next screen changes depending on your answer.
3.B On the screen, "Do any of these situations apply to Blank?" did you check off that you had Medicare?
3.C On the screen, "What type of HDHP coverage did Blank have during 2025?" (if you saw it), how did you answer it? If you had Medicare all year, you should not see this screen, because it's going to ask you questions assuming that for at least one month, you had HDHP coverage. If so, this is bad if you had Medicare all year.
3.D On the screen "What type of High Deductible Health Plan did Blank have on December 1, 2024?" - this is good, because TurboTax has moved to the next subphase, which is to figure out if you owe money due to "Failure to Maintain HDHP Coverage". That is, the last-month rule gives you the benefit of allowing you to use the full annual HSA contribution limit for your class of coverage (Self or Family) if you have HDHP coverage on December 1st of the tax year. The catch is that you have to have HDHP coverage for the entire subsequent year, hence, the "failure to maintain".
This question shows that TurboTax has moved on to the last-month rule processing, since you did not have HDHP coverage in the current tax year (2025). By this point, TurboTax knows whether or not you have excess contributions even if it hasn't told you yet.
News! News!
I can get the $1,020 to not show up on Schedule 1 (1040), if I change your input.
In the 1099-SA interview for the second form ($4,372.93), when TurboTax asked me "Did Blank have excess contributions deducted from their wages?", I answered No. Why, because I was pretending that the $1,020 did not come through the employer (W-2), but directly from the taxpayer. It is odd that this question presumes that you have an excess, when there is not enough data yet to show this one way or the other.
Then I changed the W-2 to remove the code W amount in box 12, pretending that the $1,020 did not come through the employer. Then I entered the $1,020 as a "personal" contribution.
As I continued, TurboTax never told me that there were excess contributions. This is a radical change from previous years. In this case, since you had no HDHP coverage, it was obvious that the $1,020 was in excess, so it did not bother to make then same announcement that it had made in previous years.
Now, when I get to the HSA Summary, I see zero dollars for tax-free employer contributions, zero dollars for excess employer contributions withdrawn, and $61 for taxable earnings on excess contributions. In addition, I see only $61 on line 8f on Schedule 1 (1040).
This is great...except this is not what you entered(!).
But I now see that TurboTax is not working the same way that it has for years. I guess this should as no surprise, since they changed the dialogue in the interview a lot. For example, the question "Did Blank have excess contributions deducted from their wages?" is brand-new. I question whether or not it should be asked in the 1099-SA interview, since on the first pass, TurboTax doesn't know if you have an excess - it can know only if you go back and re-enter the 1099-SA.