W2 and 5498-SA show 2300 contribution to HSA. I'm 57yrs old, should have 4500 limit. Turbotax thinks 100 excess contribution. Why?

[dmertz · Accepted solution]

You have mistakenly entered the contribution twice.  Enter amounts shown in box 12 of your W-2 only in box 12 of TurboTax's W-2 form, nowhere else in TurboTax.  Go back to the HSA contribution section and remove the personal contribution that you entered there; that's only for HSA contributions not made through your employer.