Thanks. I understand. My total benefit (in Box 5) is taxable at whatever tax rate applies to me. In my case, I will pay tax on 85% of that entire benefit in Box 5.
My medicare payments are only 10% of my full benefit, so indirectly, when it all shakes out, I will not be paying taxes on the portion that is withheld for my medicare premiums. I realize this non-taxable amount (15% of the entire benefit) will not show up on the SSA-1099 as a separate item.
