V VestedGrant
UT · ISO exercise · $15,000 bargain

How much AMT on a $15,000 ISO exercise in Utah?

Exercising and holding ISOs with a $15,000 bargain element in Utah generates approximately $0 in federal AMT (Utah does not run a separate state AMT), assuming $250k of other wage income.

Federal AMT
$0
Tentative min − regular tax
UT state AMT
$0
No state AMT
Total AMT
$0
Effective 0.0% of spread
Math behind the number

Regular taxable income: $235,000 → regular tax $52,263. AMTI with $15,000 preference: $250,000 → tentative minimum tax $42,094. AMT owed = $42,094 − $52,263 = $0.

Why the bargain element matters

When you exercise ISOs and hold the shares (don't sell same-day), the IRS treats the spread between the fair market value at exercise and your strike price as AMT preference income on Form 6251. That preference gets added to regular taxable income to compute AMTI. AMTI runs through a parallel rate schedule (26% up to $239,100, 28% above) with its own exemption and phase-out. You pay the larger of regular tax and tentative minimum tax.

Utah's role

Utah does not calculate a separate state AMT. The only AMT layer is federal. State tax still applies to any ordinary income recognized from a disqualifying disposition in the same year.

The AMT credit

AMT paid on an ISO exercise creates a minimum tax credit under IRC §53 that carries forward indefinitely. In future years where regular tax exceeds tentative minimum tax, the credit absorbs the excess. Recovery takes time. For a typical high-income filer, $0 of federal AMT recovers over roughly 0 years, faster when you eventually sell the ISO shares.

Frequently asked

What is the AMT on a $15,000 ISO exercise in Utah?
Approximately $0 total. Federal AMT is about $0. Utah does not levy a separate state AMT, so state tax on an exercise-and-hold is zero in the exercise year.
Does Utah have its own AMT on top of federal?
No. Utah does not have a separate state AMT. Only federal AMT applies on an exercise-and-hold. If you sell the ISO shares in a disqualifying disposition, state ordinary tax applies to the spread recognized as wages.
How do I avoid this AMT bill?
Three options. Exercise smaller amounts each year to stay under the AMT trigger point. Do a same-day-sale (cashless exercise), which creates a disqualifying disposition and eliminates the AMT preference at the cost of converting long-term gain into ordinary income. Or pay the AMT and claim the credit on Form 8801 in future years when regular tax exceeds tentative minimum tax.
When does the AMT credit come back?
The minimum tax credit under IRC §53 carries forward indefinitely and offsets regular tax in any future year where regular tax exceeds tentative minimum tax. For a typical high-income filer, a $0 federal AMT credit recovers over roughly 0 years at $40-60k per year.

Related

Educational estimate · 2025 federal AMT · Single filer · $250k other wages · Not tax advice

Similar ISO exercises