There's growing debate over whether America can afford Medicare as it is currently constructed. Some would limit services and benefits, others would raise taxes to keep up with demand.
For 2011, the Medicare tax rate is 1.45 percent each for employers and employees, the same as it was in 1990.
In 2013, the Medicare tax rate will rise 0.9 percent for so-called high-income earners. The change affects individuals with wages over $200,000 and joint filers starting at $250,000.
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