I filed and said I had insurance all year. I got a 1095-C today and it says my coverage didnt start until March. Do I need to amend my return? I had a qualifying event.

[xdarkpunisherx]

I applied for a Full Time spot at my employer in December of 2016. I got promoted to full time in January, got retroactive pay all the way to December and applied for insurance. I figured that since I had retroactive pay that my insurance would also go back and it would display that I was covered. I filed my W2 already and said I had insurance all year. I got my 1095-C today and it says "Offer of coverage" January through December but when I look down I see Months of Coverage March to December. Do I need to amend my return?

[TomK · Accepted solution]

No.  If your coverage began in March, then you have an exemption.  

"You were uninsured for no more than 2 consecutive months of the year. Get details about the short gap exemption."

https://www.healthcare.gov/health-coverage-exemptions/forms-how-to-apply/