Social Security and Medicare taxes on payroll are the only taxes that everybody has to pay. Social Security does have a ceiling ($106,800 in 2010) which means that the poor and the rich pay the exact same amount up until $106,800. Medicare does not have a ceiling. The reason for this is that everybody gets the same amount from Social Security. And if you have income over $23,000, you're paying taxes on that Social Security.
That federal withholding number is decieving. I can fill out a W-4 and have my entire paycheck go to federal withholding if I wanted to and claim I'm being taxed to death. What most people don't understand is that if they get back $1500-$3000 back when they file their taxes, they could have had that money during the course of the year. I am an accountant, and get into these arguments all the time with people that get back $400-$600 more than what they put into federal withholding.
Lefty...in regards to capital gains on interest:
Interest is included in regular income and taxed at the taxpayer's bracket.
A short term capital gain is taxed at that person's income level. A person in the 10% bracket pays 10%. A person in the 35% bracket pays 35%. Short term capital gains are (currently) 0% on the 10% and 15% bracket. They are 15% on all higher brackets.
Of course, this is all Bush tax cuts that stick it to the little guy...Oh yeah.
If let expire, the 10% bracket would 15%. The 15% would be 28%. The 25% would be 31%. The 28% would be 36%. 33% would be no more and (combined with 35%) taxed at 39.1%. Long term capital gains would be 10% for the 15% bracket, while everybody else pays 20%.
A person in the 10% bracket can make up to $16,750 if married. A person in the 15% bracket can make up to $68,000. A person in the 25% bracket can make up to $137,300 if married.
The way the tax system works is that (using the examples above) the first $16,750 of everybody's taxable income is taxed at 10%. Once a person makes $16,750, any additional income is now taxed at 15% until that person makes $68,000. At $68,001, the tax rate jumps to 25%. The highest tax bracket starts at $373,650. Any income over that amount is taxed at 35%.
All those fat-cat athletes, business owners, etc. that are making millions of dollars a year are currently paying 35% of every dollar once they hit $373,650. If you want people to pay more taxes based upon interest, tell the US government to make its bonds taxable (which they currently aren't and people are flocking to). Itemized deductions are usually a sore point to opponents of the current structure because a wealthy person generally has more. Guess what? These are limited and so is your standard deduction once you get to a certain point. Guess who doesn't understand that concept?
http://taxprof.typepad.com/taxprof_blog/2010/03/lawsky.html
And Alternative Minimum Tax pops in to figure out any other issues.
The tax system is very complicated, and it will never be 100% fair. If a person spends money that another person should get to deduct, then that is unfair. If a person gets money that another person should have to claim, that is unfair. I've had this argument with waitresses (notorious for not claiming all their tips) and big business owners (sheltering money). They both have the same thing in common, yet only one is demonized. I say fair is fair.