The fee for not having health insurance (sometimes called the "Shared Responsibility Payment" or "mandate”) ended in 2018. This means you no longer pay a tax penalty for not having health coverage. If you don’t have health coverage, you don’t need an exemption to avoid paying a tax penalty.
很多地方，直接walk in 动个手术都比美国的医保便宜，身体健康的时候不买医保又如何？
thanks