krubba, the 7.65% doesn't. What Canadians call Medicare doesn't occur here. The age 60+ that BladeXrunners mentions in the previous message is really 65. And you have no real account, it just goes into a big bucket which is the Federal budget.Your medical coverage is typically a perk that is provided by your employer. Usually, you pay a premium each paycheck that is maybe 20% of the total premium for you to be in the group. Then, there are co-pays and sometimes deductibles. I'd say the cost to most employees is about the same as OHIP premiums.If you are self-employed, you're on your own for finding medical insurance.There's lots more, of course. I'd say the tax load in the U.S. is maybe 10% less than it is in Canada (I have Canadian family, but we don't talk about money much, so don't hold me to this).If you were being posted by your Canadian employer to the U.S. for a limited length of time, there may be special provisions. Well, there are, but I've not cared to find out what they are since none has applied to me.Finally, the Social Security's Web site is www.ssa.gov.