The Internet is a useful resource for tax planning. One useful tax planning tool can be found at the TurboTax Web site (www.turbotax.com). At this site, by clicking on Tax Calculator and Tips and then clicking on TaxCaster, you can estimate your tax liability by clicking on the various buttons to input your income tax data. Go to the TurboTax Web site and supply your personal information. Provide the information you used in filling out the tax estimator and the results it gave to you.