For most, Medicare Part A will have no costs for you, but it is not always the case. Most beneficiaries will not have a cost for Medicare Part A at age 65 because it has been paid for through taxes. During, your working years most contribute to pay towards their future Medicare coverage during retirement.
If, you worked for 10 years in your lifetime within the United States, you in most cases will not have a cost for your Medicare Part A coverage. If, you do not have this work history then Part A may be purchased as long as you have maintained a legal resident or a green card for at least 5 years.
2021 premiums for those that have not worked 40 quarters are: 30-39 quarters worked; less than 30 quarters worked: $471