What is a Non-Qualified Stock Option (NSO)?

Stock options are a primary currency in the startup world. They allow you to compensate early team members when cash is tight and align incentives for the long haul. While many founders fixate on Incentive Stock Options (ISOs), the Non-Qualified Stock Option (NSO) is just as critical to understand.

An NSO is a type of stock option that does not qualify for the special tax treatment afforded to ISOs. The Internal Revenue Code sets specific rules for tax-advantaged options. If an option does not meet those strict requirements, or if the company chooses not to meet them, it falls into the NSO bucket.

This is the default form of equity for anyone who is not a W-2 employee. If you are hiring a contractor, bringing on an advisor, or appointing an independent board member, you will almost certainly be using NSOs.

The primary distinction of an NSO lies in how and when it is taxed. This is often a point of confusion for new hires and first-time founders.

With an NSO, there is a tax event as soon as the holder exercises the option. The difference between the grant price (strike price) and the fair market value at the time of exercise is known as the spread. The IRS considers this spread to be ordinary income.

The holder must pay income tax on that amount immediately. It does not matter if they sell the stock or hold it. This is different from ISOs, where taxes are generally deferred until the actual sale of the stock (subject to AMT rules).

When the holder eventually sells the stock, any gain above the value at exercise is taxed as capital gains. Founders need to communicate this clearly so recipients are not surprised by a tax bill before they have realized any liquid cash.

Comparing these two instruments helps clarify where NSOs fit into your strategy.

ISOs are restricted. They can only be granted to employees. They have a $100,000 annual exercise limit. They offer potential tax savings if specific holding periods are met.

NSOs are flexible. They can be granted to anyone providing services to the company. There are fewer limits on value. However, they carry that immediate income tax burden upon exercise.

Companies often issue ISOs to employees to provide that potential tax benefit. But NSOs remain the tool for everyone else who helps build the company outside of an employment contract.

There are specific scenarios where NSOs are the logical or mandatory choice.

• Advisors and Consultants: You cannot legally grant ISOs to non-employees. NSOs allow you to give these stakeholders upside in the business.
• International Employees: Tax laws vary by country. ISO benefits are specific to the US tax code. NSOs are often used for international team members as the ISO structure is irrelevant to their local tax authority.
• Exceeding Limits: If an executive has maxed out the $100,000 ISO limit for the year, the overflow is usually granted as NSOs.

Using NSOs requires you to think about the financial well being of your stakeholders.

Does your team understand that exercising these options triggers a bill?

Are you accurately tracking the fair market value via 409A valuations so the tax calculations are correct?

Equity is complex. Using NSOs effectively means understanding the trade off between flexibility for the company and tax burdens for the recipient.