QSBS (Section 1202)

A federal tax provision that allows eligible shareholders to exclude up to 100% of capital gains from the sale of qualified small business stock held for more than five years.

What Is QSBS?

Qualified Small Business Stock (QSBS), governed by Section 1202 of the Internal Revenue Code, is one of the most powerful tax benefits available to startup employees and investors. If certain requirements are met, shareholders can exclude up to 100% of capital gains — up to the greater of $10 million or 10 times their cost basis — from federal income tax when they sell their shares. For startup employees who exercise stock options and hold their shares long enough, QSBS can mean paying zero federal capital gains tax on a life-changing exit.

Requirements for QSBS Eligibility

Company Requirements

Not all company stock qualifies. The company must meet several criteria:

  • C-corporation status — The company must be a domestic C-corporation at the time the stock is issued. S-corps, LLCs, and partnerships do not qualify.
  • Gross assets under $50 million — The company's aggregate gross assets must not exceed $50 million at the time the stock is issued and immediately after. This includes the amount received for the stock issuance.
  • Active business requirement — At least 80% of the company's assets must be used in the active conduct of a qualified trade or business. Certain industries are excluded, including financial services, hospitality, farming, mining, and professional services (law, accounting, consulting, etc.).

Shareholder Requirements

  • Original issuance — The stock must be acquired directly from the company in exchange for money, property, or services. Stock purchased on the secondary market generally does not qualify.
  • Five-year holding period — The stock must be held for at least five years from the date of acquisition to qualify for the full exclusion.

The Exclusion Amount

For stock acquired after September 27, 2010, shareholders can exclude 100% of the gain, up to the greater of $10 million or 10 times the adjusted basis in the stock. This exclusion applies per issuer, meaning if you invest in multiple qualifying companies, you can potentially claim the exclusion for each one.

Practical Implications for Startup Employees

Exercising Options and QSBS

When you exercise stock options and receive shares, the date of exercise is when you acquire the stock for QSBS purposes. Your cost basis for the QSBS calculation is the amount you paid to exercise (the exercise price) plus any income recognized at exercise. For NSOs, this includes the bargain element reported as income. For ISOs with a qualifying disposition, it is typically just the exercise price.

The 83(b) Election Advantage

If you early exercise and file an 83(b) election, the acquisition date for QSBS purposes is the date of early exercise, not the date the shares vest. This starts the five-year holding clock earlier, which can be crucial if a liquidity event is on the horizon.

Planning Around the Five-Year Hold

The five-year holding requirement means timing matters significantly. If a company is likely to be acquired or go public within five years of your exercise, you may not meet the holding requirement. However, there is a provision allowing you to roll gains into new QSBS within 60 days of sale if you have not yet met the five-year threshold. This is known as a Section 1045 rollover.

State Tax Considerations

While the federal QSBS exclusion is generous, state tax treatment varies. Some states like California do not conform to Section 1202 and will tax the gain at the state level regardless. Others fully or partially adopt the federal exclusion. Check your state's rules before assuming a completely tax-free outcome.

How It Relates to Exercising Stock Options

QSBS is a compelling reason to exercise stock options early and hold. If you exercise when the company qualifies and hold your shares for more than five years, you could exclude up to $10 million in gains from federal taxes. This benefit makes early exercise and the associated 83(b) election even more attractive, particularly at early-stage companies where the gross asset test is easily met. Understanding QSBS eligibility should be part of every startup employee's exercise planning.