Look at your tax return. Is there a Form 1095-A and a Form 8962 included?
Sign onto your TurboTax online account - https://myturbotax.intuit.com/
Scroll down and click on Add a State. This will take you back to the 2019 online tax return.
Click on Tax Tools on the left side of the online program screen. Then click on Print Center. Then click on Print, save or preview this year's return.
If the Form 1095-A and the Form 8962 are not included with your federal tax return then follow the procedure in the following TurboTax support FAQ for a Form 8962 and Form 1095-A as requested by the IRS for 2019 - https://ttlc.intuit.com/community/health-care/help/the-irs-is-requesting-form-8962/01/27409
If the Form 1095-A and Form 8962 were included with your federal tax return then contact the IRS using the phone number provided in the IRS letter so you can get this matter resolved.
