You have until April 15, 2020 to file your 2019 federal income tax return. If you had a Marketplace plan in 2019 and used advance payments of the premium tax credit (APTC) to lower your monthly payment, you’ll have to "reconcile" your tax return.

Now that Open Enrollment is over, you can enroll in or change Marketplace coverage only if you have a life event, like getting married, having a baby, or losing health coverage, that qualifies you for a Special Enrollment Period.