Most people will pay more for this government health care plan for seniors. By Kimberly Lankford, Contributing Editor November 26, 2012 How much will Medicare Part B premiums be in 2013?Most people will pay $104.90 per month for Medicare Part B premiums, which is a $5 monthly increase from 2012’s premiums. But high earners will pay more, as they have since 2007. You’ll pay a high-income surcharge if your 2011 adjusted gross income (plus tax-exempt interest income) was more than $170,000 (for married people filing jointly) or more than $85,000 (for single filers). In that case, your total monthly premiums will range from $146.90 to $335.70, depending on your income. High-income seniors will also pay extra for Medicare Part D prescription-drug coverage, with a monthly surcharge of $11.60 to $66.40 (depending on income) added to the insurer’s premium. Here’s how the premiums break down by 2011 income: 2011 ADJUSTED GROSS INCOME $85,000 or less (single), $170,000 or less (joint)$85,001 to $107,000 (single), $170,001 to $214,000 (joint)$107,001 to $160,000 (single), $214,001 to $320,000 (joint)$160,001 to $214,000 (single), $320,001 to $428,000 (joint)More than $214,000 (single), more than $428,000 (joint) 2013 Medicare Part B monthly premium$104.90$146.90$209.80$272.70$335.70 2013 Medicare Part D monthly premiumpremium only$11.60 surcharge$29.90 surcharge$48.10 surcharge$66.40 surcharge Also, you have until December 7 to pick your Medicare Part D or Medicare Advantage plan during open enrollment for 2013. See Sift Through Your Medicare Choices and The Best Resource for Comparing Medicare Plans for more information. Got a question? Ask Kim at email@example.com.