What is the AMT? (The Tax That Hits the Middle Class)

Think you calculated your taxes correctly? Think again. The Alternative Minimum Tax (AMT) is a parallel “Shadow Tax” system designed to ensure no one escapes the IRS using too many loopholes.

BMT Tax Research Team BMT Tax Research Team · 📅 Jan 2026 · ⏱️ 5 min read · TAX-TIPS › DEFINITIONS
The Rule
Pay Max
Regular vs AMTCompare
The Rate
26% / 28%
Flat RatesStrict
#1 Trigger
ISO
Stock OptionsDanger

Two Calculators, One Bill

The IRS does not trust the regular tax code because it has too many deductions. So they created AMT, which ignores most deductions.

Component Regular Tax AMT System
Deductions Generous Very Limited
Tax Rates 10% – 37% 26% or 28%
ISO Spread Taxed Later Taxed NOW
Result $15,000 $18,000
The Result
In the table above, since the AMT calculation ($18k) is higher than the Regular calculation ($15k), your final tax bill is $18,000. You owe an extra $3k.
Which Tax Do You Pay?
Regular Tax $15,000
Based on brackets.
AMT Calc $18,000
You Pay This.
“AMT Hit” +$3,000
The extra burden.
Income LevelRisk
Under $100kLow
$200k – $500kHigh

The Tech Employee Trap (Incentive Stock Options)

This is the most common reason normal people get hit by AMT.

The Scenario

  • Action: You exercise ISO stock options to buy shares at $1, but they are currently worth $10.
  • Regular Tax: You pay $0 tax until you actually sell the shares.
  • AMT Tax: The IRS counts that $9 profit (spread) as income TODAY, even if you haven’t sold the stock.

The Danger

You might owe thousands of dollars in AMT on “paper profits” while having zero cash in the bank. This is known as the “AMT Trap.”

2026 AMT Exemption Limits

Thankfully, you get a large “AMT Exemption” (deduction) to protect low and middle incomes. You only pay AMT if your income exceeds these buffers.

  • Single: ~$85,700 Exemption.
  • Married Filing Jointly: ~$133,300 Exemption.

(Note: These figures are inflation-adjusted estimates. If your income is below these thresholds, you generally don’t need to worry about AMT.)

Frequently Asked Questions

Can I get the money back?
Yes. If you pay AMT due to timing items (like ISOs), you get an “AMT Credit” that you can use to lower your taxes in future years when your regular tax is higher.
Do standard deductions count?
In the Regular system, yes. In the AMT system, the Standard Deduction is effectively replaced by the AMT Exemption. This is why having many dependents or high state taxes used to trigger AMT (though less so after 2018).