My premium for Parts B is not on my SSA-1099. What do I need to do?
IF you paid them separately, then you would enter the total paid as one of the Medical premium expense deductions during the Medical Expenses interview on the Deductions& Credits page. Get all your income entered first though.
You may not have enough total itemized deductions, or medical expenses to exceed the minimum thresholds for each, but enter all you out-of-pocket expenses anyhow, since some states have a lower Itemized deductions limit than the Feds do..