What Will I Pay For Medicare? 
Medicare Part A is typically $ 0 as long as you met your 40 quarters -LRB- or 10 years -RRB- of working life and paying FICA taxes -LRB- Medicare taxes -RRB- . If you have not met that requirement , the monthly premium is up to $ 426 per month . For 2014 , the premium for Medicare Part B is $ 104.90 . This can change each year and is based on your modified adjusted gross income on your tax return from 2 years prior . You may also face a high-income premium penalty on your Part B coverage . The $ 104.90 premium is for those with incomes of $ 85,000 or less , if filing an individual tax return , and $ 170,000 , if filing a joint tax return . If your income was between $ 85,000 and $ 107,000 -LRB- for individual tax returns -RRB- , $ 170,000 and $ 214,000 for those married filing joint tax returns , your premium would be $ 146.90 . If your income was between $ 107,000 and $ 160,000 -LRB- for individual tax returns -RRB- , $ 214,000 and $ 320,000 for those married filing joint tax returns , your premium would be $ 209.80 . If your income was between $ 160,000 and $ 214,000 -LRB- for individual tax returns -RRB- , $ 320,000 and $ 428,000 for those married filing joint tax returns , your premium would be $ 272.70 . If your income was above $ 214,000 -LRB- for individual tax returns -RRB- , $ 428,000 for those married filing joint tax returns , your premium would be $ 335.70 . You can encounter other expenses as well such as the Part A and Part B deductibles and late enrollment penalties for not enrolling in Part B when you were first eligible for Medicare . Original Medicare -LRB- Parts A & B -RRB- only cover about 80 % of healthcare expenses . You 're generally responsible for the other 20 % . A Medicare supplement plan can greatly help establish a predictable expense structure - essential for individuals on a fixed income in retirement . It will limit the amount of cost you 're susceptible to in the event of an illness or injury . 