My W2 incorrectly overstated my employer's HSA contribution by $200. Around $1000 was the actual amount I received from my employer as indicated in my 5498-SA which I just received. On my W2 box 12c it was ~$1200.
I made no contribution myself either through payroll or personally. I also don't have any other tax advantaged health accounts such as FSA, etc.
This employer contribution was not part of a salary reduction plan, and so the only correction is the box 12c and all other numbers (including my gross wage) remains unchanged.
Therefore when I re-entered the correct amount in Turbotax my tax refund amounts (federal and state - MI) were unchanged. Also in my 8889 after I made the correction line 2 is NOT more than line 13 so that also remained unchanged, as my total contribution was only $1000 which is under the contribution limit, so I have no additional amount owed for HSA over-contribution.
I already filed my tax for 2018. In this case assuming I receive my W2-c with only correction to W2c box-12c and it doesn't change my tax refund/owed amounts: would I need to file amended returns?
