After you file

Yep ... if you had entered the 1095-A on the original return you would have needed to upgrade to complete the return so you need to do so now .... or you can fill in the 8962 by hand for free :  <a rel="nofollow" target="_blank" href="https://www.irs.gov/forms-pubs/about-form-8962">https://www.irs.gov/forms-pubs/about-form-8962</a>