For 2013, most people pay a Part B premium of $104.90 per month if they had the premium deducted from their Social Security checks. The premium is higher for individuals with incomes above $85,000 per year and for married couples with incomes above $170,000 per year.
Beneficiaries filing an individual tax return pay a monthly premium of $146.90 if their income is $85,001-$107,000; $209.80 if their income is 107,001-160,000; $272.70 if their income is $160,001-$214,000; $335.70 if their income is above $214,000.
For beneficiaries filing jointly, the 2012 Part B monthly premium is $146.90 if their income is $170,001-$214,000; $209.80 if their income is $214,001-$320,000; $272.70 if their income is $320,001-$428,000; and $335.70 if their income is above $428,000.
Beneficiaries who are married but file separate tax returns pay $272.70 if their income is $85,001-$129,000; and $335.70 if their income is above $129,000.
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