Income tax in the United States - Wikipedia, the free encyclopedia
You only pay the rate on the dollars earned within that bracket.
In other words: the tax rate for income up to $8,375 is 10%. So you - and the guy who only earns $8,375 is 10% on the first $8,375.
You make more than that. So, you pay on the money you earn between $8,375 and $34,000 a rate of 15%. Granted, he doesn't pay that, but that's because he doesn't make it. But you're not paying an additional 5% on your first $8,375. You paid 10% on that. (or whatever the current rate it).
And that continues all the way up.
If you think otherwise, then you have a terrible accountant.