Reduce AMT Exercising NSOs

Last updated: Sep 15, 2025

Reduce AMT by exercising NSOs with The Employee Stock Option Fund. Alleviate the financial risk of exercising on your own, and ESO takes all the risk.

Alternative Minimum Tax (AMT) was designed to ensure that tax payers with access to favorable tax shelters pay at least a minimum amount of tax. The AMT rate is lower than the ordinary income tax rate applicable to the same level of income since it is considered a minimum amount. The calculation of AMT is based on calculating your taxes two ways and paying the higher figure. If the AMT calculation is higher, then the difference of the AMT method over the ordinary method is your Alternative Minimum Tax. A natural consequence of exercising NSO shares that require immediate payment of ordinary income tax is that it raises your average tax rate paid which will lower the amount of AMT due almost dollar for dollar using the general formula just mentioned. As such, it is common for employees facing high taxes to have ESO Fund cover the cost of exercising the NSOs while the employee exercises the less expensive ISOs at the reduced rate.

To calculate your savings precisely, follow the instructions on our AMT Calculator with the added instruction of entering your NSOs only after you've calculated your AMT. In other words, first determine your AMT and then enter your proposed NSO exercise knowing that ESO Fund will cover the NSO-related taxes. You'll notice how much your AMT goes down and that is a simple benefit that falls out of merely having ESO Fund involved. Moreover, you can maximize your benefit by having ESO Fund cover the cost of the AMT and ISO exercise as well.

ESO Fund can help alleviate the financial risk of exercising on your own by providing the funds to exercise stock options and to cover the applicable taxes. No repayment is due unless and until there is a liquidity event involving the company that issued the shares, such as a sale or IPO. If the final value of the stock is insufficient, ESO Fund still bears the loss on your behalf.

For more information regarding how working with ESO Fund can benefit you, please contact us. Note that many other factors such as deductions, your tax bracket, state income taxes, and capital gains will also impact your final AMT calculation. Since ESO Fund has no way of knowing how your final taxes will look, you are advised to work with a tax professional to minimize your risk of not having sufficient funds when you finally file your tax return. ESO Fund is not obligated to increase its cash advance to you at a later date.

For help funding exercise related taxes, check out how ESO Fund can cover your taxes risk-free.

Written by Scott Chou, Co-Founder & CEO at ESO Fund

Frequently Asked Questions

How can I reduce my taxes when exercising stock options?

There are tons of ways to reduce stock option taxes, our site currently lays out 17 different ways to do reduce stock option taxes!

What is the Alternative Minimum Tax (AMT)?

AMT is a parallel tax system that may apply when exercising ISOs, increasing your tax bill in the year of exercise.

How does AMT affect stock option exercises?

Exercising ISOs may trigger AMT, requiring you to pay taxes upfront even if you don’t sell shares.

What does ESO Fund do?

ESO Fund helps startup employees exercise their stock options without risking their own cash. We provide non-recourse funding, covering 100% of the exercise cost and taxes, so employees can retain ownership and benefit from future upside. If the company doesn’t succeed, you owe us nothing—we take on all the risk.

Does ESO Fund pay for taxes as well as exercise cost?

Yes! ESO Fund considers any option exercise related taxes (AMT or NSO) as part of the exercise cost and includes tax coverage in our funding.

Get Started with ESO Fund

Equity decisions are complex, but you don’t have to navigate them alone. ESO Fund has been helping employees unlock the value of their hard-earned equity for over a decade. Whether you’re exercising, planning for taxes, or looking for liquidity, we’re here to provide clear, non-recourse funding solutions tailored to your situation.

See our 3-step process.

Exercise without risking savings.

Hear from employees we’ve helped succeed.

Unlock cash while keeping your shares.

Estimate tax exposure in minutes.

Access liquidity from vested RSUs before IPO.

Ready to explore your equity options? Our team is here to walk you through the next steps.

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This innovative service promotes and enables a healthier relationship between companies and employees. I my opinion it's valuable to employees and great for the overall tech environment and economy. It is good for nobody when employees feel trapped because they can't afford to leave. In less extreme cases exercising can be expensive and somewhat risky and this is simply a good smart hedge and a good square deal. Brilliant!

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