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A Startup Guide to Exercising Startup Stock Options
20 Feb 2026, 11:17 am GMT
Stock options are a powerful retention incentive that enhances the employee value proposition (EVP) for prospective talent.
Startups that plan on offering this incentive must create a framework for exercising stock options, allowing employees to buy and sell shares in the company at a fixed price. This fixed price doesn't change with market conditions.
When considering stock options, startup employees must build a knowledge base on early stock options, non-recourse funding, tender offers, cashless routes, tax strategies, and due diligence.
The Early Exercise Approach
Offering an "early exercise" stock option route allows employees to take a proactive approach to wealth-building by purchasing company shares before they've officially vested. This is a crucial time window when the Fair Market Value (FMV) matches the fixed price.
Startup employees who buy during this critical window could pay zero in immediate taxes. Early buyers have a month to file an 83(b) election form with the IRS to secure the valuation and start earning capital gains.
If an employee leaves a startup before vesting, the company will often buy back unvested shares at a price below the fixed rate or FMV.
Non-Recourse Financing
Startup employees often need non-recourse funding to exercise employee stock options. This allows them to retain their equity without draining their savings.
Specialized firms supply enough capital to exercise options (and cover taxes) while allowing employees to secure their loans with the shares themselves. Should a startup's value plunge to zero, these lenders won't come after personal assets. These types of firms usually charge startup employees for origination fees and take a percentage of the future profits.
Tender Offers
A startup may also provide tender offers during a critical growth phase for the company.
During this time, the company itself or outside investors will offer to buy shares back from employees. A real-world scenario could see an employee taking a tender offer for 10% of their shares to finance the exercise and tax costs of the remaining 90%.
Tender offers provide a cashless route for exercise financing. However, employees must be aware that these offers are often taxed at a higher rate.
Net Exercise
If a startup becomes public or is close to an initial public offering (IPO), employees may consider a net exercise option, also known as a same-day sale.
In this case, a brokerage firm will lend the exercise capital to buy the shares. The employee sells the shares immediately, allowing them to pocket the difference after subtracting brokerage costs. Like tender offers, this route may be subject to higher taxes.
Stock Options and Timing
Timing is crucial when exercising stock options.
Most stock options expire after 10 years. If a startup employee plans on leaving a company, they only have a 3-month window (90 days) to exercise (and finance) stock options before they expire.
Tax Considerations
While the tax advantages of incentive stock options make ISOs appealing to startup employees, exercising them can result in alternative minimum tax (AMT) obligations. Employees may have to pay taxes on the difference between the fixed price and the current FMV price, despite not having sold a share.
After receiving their shares, employees should hold onto them for at least two years to be eligible for a lower capital gains tax rate.
Employee Due Diligence
When it comes to any financial product, employees must practice thorough due diligence. For instance, using secure portals to sign and store sensitive stock option documents, like NDAs and grant notices, is a must. Employees should also hire CPAs or legal experts who specialize in stock options to review contracts.
Discover the Potential of Stock Options
Stock options can be a wealth-building game-changer for startup employees, but understanding the mechanics behind exercising and financing is key.
Employees should have a solid knowledge base that includes early options, non-recourse financing, tender offers, net exercises, timing, and taxes. These topics are part of a well-rounded due diligence approach that also includes security and professional expertise.
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Peyman Khosravani
Industry Expert & Contributor
Peyman Khosravani is a global blockchain and digital transformation expert with a passion for marketing, futuristic ideas, analytics insights, startup businesses, and effective communications. He has extensive experience in blockchain and DeFi projects and is committed to using technology to bring justice and fairness to society and promote freedom. Peyman has worked with international organisations to improve digital transformation strategies and data-gathering strategies that help identify customer touchpoints and sources of data that tell the story of what is happening. With his expertise in blockchain, digital transformation, marketing, analytics insights, startup businesses, and effective communications, Peyman is dedicated to helping businesses succeed in the digital age. He believes that technology can be used as a tool for positive change in the world.
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