The IRS provides a tax calculator which taxpayers can use to estimate the amount of taxes he/she may owe at the end of the year.
 Taxpayers can used their most recent pay stubs to generate responsible estimates.
Waiting until April 14 to concern yourself with how much you owe - is too late.
 There is very little that you can do to change your tax liability, except maybe contribute to an IRA.
  Taxpayers who work two or more jobs, especially at the same time, can use the tax calculator to better understand their tax liability.
 Or, to change their W-4 Forms, in order to increase income and lower tax withholding, without having to owe at the end of the tax year.
  Spouses who both work and need more disposable cash each month can use the calculator to adjust one or both spouse's W-4 Forms to include more or less withholding tax.
Individuals expecting to receive a large pension can use the calculator to adjust withholding, so they won't end up with a huge tax bill.
  In 2009, the first $2400 of unemployment is tax free, and the IRS calculator includes this factor into the software program.
In order to experience the full benefits of the IRS tax calculator, you will need your most recent pay stubs and a copy of last year's tax return.
 The IRS states that none of the information used in the tax calculators, is saved, shared or used, by the IRS.
  You can find the IRS Tax Calculator by visiting: irs.
gov and putting in the words "tax calculator" in the search box at the top of the page.