A recent article by Joe Wallin on The Startup Law Blog highlights an important point that many founders and investors overlook: reaching the five-year QSBS mark does not lock the tax benefit in place. As Wallin explains, the active business requirement continues for “substantially all” of the shareholders’ holding period, which means companies need to keep managing and documenting compliance right up to the sale date.
That point has become even more important after the One Big Beautiful Bill Act (OBBBA) introduced tiered exclusion rules for newer stock: 50 percent after three years, 75 percent after four years, and 100 percent after five years. But the active business rule does not stop at any of those milestones. Whether a shareholder is aiming for year three, year five, or holding the stock much longer, the company still needs to satisfy the active business requirements for substantially all of that period.
The Real Risk Is Drift, Not Just a Single Bad Event
The statute requires the corporation to meet the active business rules during substantially all of the holding period, and those rules have two core parts: at least 80 percent by value of the company’s assets must be used in the active conduct of one or more qualified trades or businesses, and the company must remain an eligible corporation, generally a domestic C corporation. The article also notes that “substantially all” is not clearly defined in Section 1202, but practitioners often think in terms of roughly 85 percent to 95 percent, with no QSBS-specific safe harbor.
That is why the real danger is often not a dramatic event. It drifts over time. A company may begin life as a clean QSBS issuer and then slowly move into a riskier profile as it matures. It may pile up cash after a financing and hold it too long without a documented business use. It may sell part of the business and sit on the proceeds. It may start buying securities or other passive assets. It may add a consulting, financial, brokerage, or service-heavy line that begins to dilute the qualified business. Or it may buy real estate that is not actually used in the business. None of those moves necessarily look alarming from an operating standpoint, but under Section 1202 they can erode the company’s ability to satisfy the Active Business Requirement over time.
Several concrete failure points are highlighted in the article:
- A late-stage pivot into a disqualified field can reduce the share of assets devoted to a qualified trade or business.
- A company winding down its operations while sitting on excess cash can fail because the working-capital rule is limited.
- As a company grows and invests excess cash, the rules also create risk if the company builds a portfolio of stock and securities in other corporations, for which Section 1202 imposes a hard 10% cap.
- Real estate not used in the qualified trade can also create similar risks.
What Companies Need to Do to Avoid Active Business Problems
The practical lesson is that companies should treat the Active Business Requirement as an ongoing compliance process, not a one-time issuance analysis. A good place to start is with year-end financials. Companies with QSBS holders should review their balance sheet at least annually and ask four recurring questions: (1) what percentage of assets is actually tied to the operating business, (2) how much cash is being carried and why, (3) whether any securities or real estate holdings are approaching statutory limits, and (4) whether recent business-line changes affect qualified trade status. For this purpose, the article highlights the importance of the obtaining an annual QSBS attestation – CapGains makes obtaining such an attestation relatively seamless.
Cash management is one of the most important areas. If a company is sitting on a large raise, it should document a concrete use-of-funds plan and update that plan as circumstances change. The key is not simply having cash, but being able to show that the cash is reasonably required for the business or is expected to be deployed within the period the statute contemplates. Once cash becomes “excess”, undefined, or disconnected from a real operating need, it starts looking less like working capital and more like an inactive asset. Companies that are slowing down, exploring a sale, or winding down need to be especially careful here, because excess cash is one of the clearest ways to drift into trouble.
Companies also need to watch business-model creep. If a software company adds a large consulting arm, if a medtech company begins running clinics, or if an operating company gradually earns more income and value from financial-like activities, the qualified trade analysis can change. That does not mean every adjacent line is fatal, but it does mean management should review whether the new activity is pushing the company toward one of Section 1202’s excluded fields. This becomes especially important when the company is growing into multiple lines of business and no longer looks exactly like the startup that originally issued the stock.
Mergers, acquisitions, and restructurings also need special attention. Stock-for-stock reorganizations and acquisitions by a non-qualified parent can create problems, especially where shareholders continue holding replacement equity. In some reorganizations, replacement stock can retain QSBS treatment, but the exclusion may be limited to the built-in gain at the time of the exchange unless the replacement issuer is itself a qualified small business. That means companies should not assume a strategic stock deal preserves the same Section 1202 value as a clean cash exit. These transactions need to be analyzed before signing, not after closing.
Documentation Needs to Be Built Before the Sale Process Starts
The article encourages companies toward a more formal attestation process. That is one of its most practical suggestions. Instead of issuing a one-time QSBS letter at formation or waiting until an exit is underway, companies should build an annual attestation habit given the ongoing requirements. The reason is simple: qualified trade status is a moving target. A letter given at issuance may be outdated by year five, and a letter prepared during a live deal may be rushed, expensive, and difficult if records are incomplete. The article recommends annual QSBS attestation letters and notes that outside counsel may need two to four weeks or more to prepare the supporting analysis, especially when the company has changed significantly or its records are not clean.
A strong process would include a defined internal owner, usually finance, supported by outside tax or legal review when needed. Each year, the company should preserve the financial statements reviewed, a schedule of asset categories, a memo on excess cash and planned use, a summary of any acquisitions, divestitures, pivots, or new lines of business, and a record of whether the company still believes it is engaged primarily in qualified trades or businesses. That kind of file makes the eventual gain exclusion much more credible and much easier to defend. Not every company will want a full legal memo each year, but every company with QSBS-holding shareholders should be building the factual record each year. That is the difference between real compliance and reconstructive storytelling at exit.
The Better QSBS Mindset
The broader takeaway is that QSBS should be viewed as something that must be maintained, not merely earned. The holding period matters, but it is only part of the picture. Companies that want to protect their shareholders’ exclusion need to manage their asset mix deliberately, document working-capital needs, monitor expansion into non-qualified areas, review transactions before they happen, and stand up a regular attestation process well before a sale is on the horizon.
That is the more durable playbook. The five-year date still matters, but it is not a finish line. For active business purposes, the real question is whether the company stayed onside all the way to the sale. And the companies most likely to preserve QSBS value are the ones that treat that question as an annual compliance discipline, not a last-minute deal issue.
This article does not constitute legal or tax advice. Please consult with your legal or tax advisor with respect to your particular circumstance.