The Alternative Minimum Tax (AMT) was introduced in 1969 to ensure that high-income taxpayers paid a fair share in federal taxes and did not benefit disproportionately from deductions and loopholes.
Over time, however, the AMT began to affect more than just the wealthiest Americans. Because it was not indexed for inflation until 2013, millions of middle-class taxpayers were pulled into the AMT system. Following the Tax Cuts and Jobs Act of 2017, the number of affected taxpayers has declined significantly. Based on the most recent data available, only about 0.1% of taxpayers now pay the AMT.1,2
What Is The AMT, Exactly?
It may be easiest to think of the AMT as a separate tax system with a unique set of rules for deductions, which are more restrictive than those in the traditional tax system.
The only way to know for sure if you qualify for the AMT is to fill out Form 6251 from the Internal Revenue Service. It may be worth doing just to be sure, especially if you are a high-income earner who can claim sizable tax breaks.
If you should have paid the AMT and the IRS discovers that you didn’t, you may owe back taxes and could also have to pay interest and/or penalties.
The AMT Language
Because the AMT system has complicated rules and provisions, it’s a good idea to consider consulting legal or tax professionals for specific information regarding your individual situation. And remember, the information in this material is not intended as tax or legal advice. It may not be used for the purpose of avoiding any federal tax penalties.
If you want to avoid any potential surprises at tax time, it may make sense to know where you stand when it comes to the AMT. The time and energy you spend today may be worth the investment.
Where Does All That Money Go?
Here’s a breakdown of how the federal government spends its revenues.
Source: CBO.gov, March 20, 2025. Figures represent total outlays for the 2024 fiscal year, as reported by the Congressional Budget Office.
- Investopedia.com, February 26, 2025
- TaxPolicyCenter.org, August 12, 2025
