The Alternative Minimum Tax (AMT) is a separate tax calculation that applies to higher-income taxpayers who use certain deductions or credits. The IRS requires some people to calculate their taxes two ways—the regular method and the AMT method—and pay whichever amount is higher. This affects your filing if you have significant deductions, investment income, or exercise stock options.

These articles explain what triggers an AMT calculation, which deductions and credits the AMT limits or disallows, how to complete Form 6251, and what to do if you owe AMT. You'll find answers to questions like whether your situation requires an AMT calculation, how it changes your tax bill, and what records you need to keep.