Hello I am trying to figure out how to calculate my MAGI. I understand that it is AGI plus added back deductions but the instructions seem very confusing. for instance, one part says IRA contributions are added back another part says no, also two different sites I've been too say employer sponsored 401k contributions are and are not added back. My concern is that if the MAGI rises above 205,000 our Medicare premiums increase significantly.
thank you
