H&R Block's Alternative Minimum Tax Planner helps you determine whether you will owe alternative minimum tax in 2010. If you do owe AMT, you can also use the calculator to determine if you can reduce your tax by timing your income and expenses.
If you are not already on the Plan tab, click the Take Me To option, scroll down to Tax Planning, and select H&R Block Alternative Minimum Tax Planning.
Click Go To.
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Click on the underlined text "H&R Block's Alternative Minimum Tax (AMT) Estimator". Your browser will open to www.hrblock.com.
Follow the instructions on the screen to start up the calculator.