How Much Does Medicare B Cost? 
Most individuals receiving Medicare Part B will pay the standard monthly premium -LRB- $ 104.90 per month in 2014 - this number can change each year -RRB- . Some people may be subject to the higher income penalty if they earn above $ 85,000 on their MAGI -LRB- modified adjusted gross income -RRB- as stated on their individual tax return or married filing single tax return from 2 years prior , above $ 170,000 -LRB- if married filing jointly -RRB- . If filing an individual tax return , the premium brackets are as follows for 2014 : 1 -RRB- $ 85,000 or less - $ 104.90 per month 2 -RRB- $ 85,001 - $ 107,000 - $ 146.90 per month 3 -RRB- $ 107,001 - $ 160,000 - $ 209.80 per month 4 -RRB- $ 160,001 - $ 214,000 - $ 272.70 per month 5 -RRB- $ 214,001 or more - $ 335.70 per month If married filing jointly , the premium brackets are as follows for 2014 : 1 -RRB- $ 170,000 or less - $ 104.90 per month 2 -RRB- $ 170,001 - $ 214,000 - $ 146.90 per month 3 -RRB- $ 214,001 - $ 320,000 - $ 209.80 per month 4 -RRB- $ 320,001 - $ 428,000 - $ 272.70 per month 5 -RRB- $ 428,001 or more - $ 335.70 per month If married filing single , the premium brackets are as follows for 2014 : 1 -RRB- $ 85,000 or less - $ 104.90 per month 2 -RRB- $ 85,001 - $ 129,000 - $ 272.70 per month 3 -RRB- $ 129,001 or more - $ 335.70 per month Part B will pay for approximately 80 % of your physician service expenses leaving you responsible for the other 20 % . If you want to add prescription drug coverage or a Medicare supplement plan to cover the gaps in Original Medicare -LRB- Part A & Part B -RRB- , you will have additional premium expenses , however , it will help you create a much more predictable healthcare expense structure -LRB- the premiums will also be based on the plan you 're applying for , your age , and other factors -RRB- . 