Unfortunately, the only way for you to get the information is from the mother. Because she is the policyholder, even if you called Marketplace Insurance, they would not give the information to you.
I am not sure if this is possible, but is there any way you could explain that you need to report the information for yourself on your return. The information you need is the top half of the form which contains:
- The State initials for the insurance;
- Policy Number;
- Provider Name;
- Policyholder name (should be the mother);
- Policyholder address;
- beginning and ending date of the policy (normally this would be 1/1/2021 to 12/31/2021 if you had the insurance for the entire year).
The next section would just list your name, social security, date of birth, and the policy period.
The next section is a list of the months with 3 columns, you need the information to fill in for each of the 12 months and each column. The easiest way to divide this up and has been accepted by the IRS is to divide the total in each both by the number of individuals on the policy. So in your case, you would divide the amount by 3 and you would enter 1/3rd of the amount in each column for each month as the original form shows.
I assume she would have only reported 2/3rd of the amount. Even if she reported the entire amount, you still need the top half so that you can enter the information, advise it was reported by someone else, and enter $0.00 on the entry screen.
IF you absolutely cannot get the information, you would have to paper file your taxes. When the IRS gets to your return, you will get a letter asking about the 1095-A. At that point, you could provide the information you have to them and explain that she refuses to provide you the information to report your share on your taxes. I believe, if you respond to their correspondence with her name, address, birth date, and social security number, they could look the information up and possibly at that point provide you with the information you need or waive the requirement if she already report the information.
You could contact the Marketplace for your state and if you have all of her information, you may be able to get the information you need. This link will help you locate your Marketplace Insurance.
