How to find out how much taxes do i owe??

The easy answer is, of course, fill out a tax return. However, if you just want a "quick and dirty" estimate. . .First you need to know your Adjusted Gross Income (AGI)(wages, interest income, etc. minus allowable deductions e.g., health savings account deductions, alimony (not child support) paid). Next you need to know your filing status, e.g., Single, Married filing Joint, etc.. and how many dependents you have. Now, reduce your AGI by: $5150 (if you're single or Married but filing Separately), or $7550 (If you're filing as Head of Household), or $10,300 (If you're Married filing jointly) Then reduce THAT amount by the number of exemptions you have times $3,300. The result is your Taxable Income. Next go to: http://www.irs.gov/formspubs/article/0,,id=150856,00.html and use that rate table to estimate your tax liability. Remember this is only an estimate and the variables too numerous to address here in detail.

If you have filled out a return, the amount of taxes is on the return, although if you are late paying them, interest and penalties will have accumulated. Call the IRS to find out the total that you owe. If you haven't done a return for one or more years, get your paperwork together and get it filed, then you'll be able to find out how much total you owe.