In that case, you don't have to pay any fee when you file your 2018 taxes and to qualify, you must be enrolled on one the programs that are listed on the website
Is there a penalty applicable if I don't have health insurance?
Until the end of 2018, the ACA required that all US taxpayers had to have health insurance that met a minimum standard. Some taxpayers are eligible for exemptions from this due to certain life events, financial status or other factors. If you had affordable health care options open to you and you chose not to avail of health insurance, then you would have to pay a fee when filing your taxes
What happens if I didn't have health coverage in 2018 or have an exemption?