Hi taxes experts. I need help with my previous taxeas. I became a permanent resident and got my greencard on December, 15 2014. At that time I didn't meet the substantial presence test. In 2015 I filed my 2014 taxes 1040-NR because I only lived 15 days in the US during 2014. However I'm not sure if what I did was all right. Should I have filed 1040 instead or dual citizenship for that year, can I still amend those taxes?
Thank you so much for your advice!
