The documents you will need will depend on whether your son is a U.S. born citizen or a foreign born citizen.
He is a U.S. citizen, but what documents do I need to verify this with Social Security?
ITo verify your son's citizeship, we will need to see a U.S. birth certificate or an U.S. passport.
Will this prove his identity?
Yes, this will prove your son's identity.
Understood, and regarding the monthly Medicare premiums, if I am single and I file an individual tax return, what happens to my monthly premiums for 2020?
Then the chart on our website applies to you.
If I give you current tax information, can you update your records?
Yes, we'll update our records.
What happens if you determine that I'm a higher-income beneficiary?