If you received a Form 1095-A, you will need to enter the information in your tax return.
If you have already filed your tax return, you will need to wait to see if it is accepted or rejected.
If it is accepted, you will need to amend your tax return to include the Form 1095-A information in your tax return. Please see the steps below to amend your return:
If your return is rejected, you can add your Form 1095-A as stated below.
Here are the steps to add Form 1095-A in your return:
Please see this TurboTax article for more information.
Do you mean IRS form 1095-A? Were you asked to complete IRS form 8962?
If so, here is how you complete IRS form 8962.
If you have filed your Federal tax return without form 8962, you will likely be notified by the IRS that you need to file form 8962 Premium Tax Credit.
See also this help.