Legal & Compliance
Last updated
Quick Answer
A parallel tax system that can create unexpected tax liability when exercising incentive stock options.
The AMT is a parallel U.S. tax calculation that ensures taxpayers pay at least a minimum amount of tax. For startup employees, exercising ISOs can trigger AMT because the spread between exercise price and fair market value counts as AMT income, even though no cash is received.
In Practice
An employee exercises 10,000 ISOs at $1 when the 409A valuation is $10. The $90,000 spread triggers AMT, creating a potential tax bill of ~$25,000 on paper gains they can't sell.
What good looks like
Why It Matters
AMT has caused financial hardship for startup employees who exercised options in companies that later failed. Understanding AMT is critical before making exercise decisions.
VC Beast Take
AMT is the silent killer of startup equity dreams. Many employees learned this the hard way during the dot-com bust.
Related concepts
The AMT is a parallel U.S. tax calculation that ensures taxpayers pay at least a minimum amount of tax. For startup employees, exercising ISOs can trigger AMT because the spread between exercise price and fair market value counts as AMT income, even though no cash is received.
Understanding Alternative Minimum Tax (AMT) is critical for founders navigating the fundraising process. It directly impacts deal terms, valuation, and the relationship between founders and investors.
Alternative Minimum Tax (AMT) falls under the legal category in venture capital. This area covers concepts related to the legal frameworks and compliance requirements in venture capital.
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