I filed taxes last minute and hadn't realized that having secondary insurance had made me ineligible for my HSA. I went ahead and filed, mistakenly putting that I was on a family plan all year because I was on family, non high deductible insurance, when I should have listed self only high deductible insurance a few months of the year. Because it was last minute, I was only able to fix the contributions and distributions this week after the tax deadline. How should I go about amending this?
