Maryland's Official Health Insurance Marketplace

I estimate my income will be over the Medicaid income limit and I am eligible for a premium tax credit. If, by the end of the year, it turns out my annual income was even lower so I could have enrolled in Medicaid, will I have to pay back the premium subsidy?

No, your final premium credit amount will be determined based on your income for the year as reported on your tax return. The fact that it ended up being lower than 138% of the poverty line (the Medicaid limit for most individuals, except children and pregnant women) does not mean you have to pay back the premium tax credit you received. In fact, your final credit amount will likely be larger than the amount you received in advance.