What Businesses Qualify for QSBS?

Qualified small business stock can be one of the most valuable planning opportunities in the Internal Revenue Code (IRC). Sell stock that qualifies under I.R.C. section 1202 and you may exclude a substantial portion of the gain, or all of it, from federal tax. But the exclusion is not automatic. The issuing corporation must satisfy strict requirements for what it does and what it owns, and it must keep satisfying them for essentially the entire time you hold the stock.

This article covers the business activity restrictions. These are the rules that determine whether the corporation's line of business qualifies at all, and whether its balance sheet stays within the limits the statute allows.

The Active Business Requirement

Stock qualifies as QSBS only if it is issued by a C corporation that meets the active business requirement during substantially all of your holding period. I.R.C. section 1202(c)(2)(A). That timing language matters. It is not enough for the corporation to qualify on the day the stock is issued or the day it is sold. The requirement applies across the holding period as a whole.

The test itself has two parts. At least 80 percent of the corporation's assets, measured by value, must be used in the active conduct of one or more qualified trades or businesses, and the corporation must be an eligible corporation. I.R.C. section 1202(e)(1).

The eligible corporation requirement is easy to overlook. An eligible corporation is generally any domestic corporation, but the statute expressly excludes DISCs and former DISCs, regulated investment companies, REITs, REMICs, and cooperatives. I.R.C. section 1202(e)(4).

Two questions follow from the 80 percent test. First, is the business a qualified trade or business at all. Second, are enough of the corporation's assets actually devoted to it.

Excluded Businesses

Section 1202(e)(3) excludes entire categories of activity from the definition of a qualified trade or business. Assets devoted to those activities do not count toward the 80 percent active business test, and a corporation whose business consists principally of an excluded activity generally cannot satisfy the test. A corporation with a qualified core business and an ancillary excluded activity does not necessarily fail, but the excluded-activity assets do nothing to help it qualify. The excluded categories are

- service businesses in the fields of health, law, engineering, architecture, accounting, actuarial science, performing arts, consulting, athletics, financial services, and brokerage services, - any business where the principal asset is the reputation or skill of one or more employees, - banking, insurance, financing, leasing, investing, or similar businesses, - farming businesses, including the raising or harvesting of trees, - businesses involving the production or extraction of products eligible for depletion under I.R.C. sections 613 or 613A, such as oil, gas, and minerals, and - hotels, motels, restaurants, and similar businesses.

The reputation-or-skill category deserves special attention. It is one of the less defined exclusions and requires a fact-specific inquiry into what the business actually provides to its customers. A business built principally around the personal reputation or individual expertise of its employees may present a qualification problem even if its industry is not separately listed in the statute. A business whose value rests on proprietary products, processes, or other assets stands on firmer ground, even if its people are highly skilled.

Asset Composition Limits

A corporation in a qualified line of business can still fail the test because of what it holds. Section 1202 imposes two limits on asset composition.

First, no more than 10 percent of the value of the corporation's assets, in excess of liabilities, may consist of stock or securities in corporations that are not subsidiaries. I.R.C. section 1202(e)(5)(B). Certain working capital assets are excepted, as discussed below.

Second, no more than 10 percent of the total value of the corporation's assets may consist of real property that is not used in the active conduct of a qualified trade or business. I.R.C. section 1202(e)(7). The statute is explicit that owning, dealing in, or renting real property does not count as active conduct for this purpose. A qualified operating business cannot park value in passive real estate without putting its QSBS status at risk.

Working Capital and Startup Exceptions

Early-stage companies rarely have 80 percent of their assets deployed in operations. The statute accounts for that in two ways.

Assets held as part of the reasonably required working capital needs of a qualified trade or business are treated as used in the active conduct of that business. So are assets held for investment that are reasonably expected to be used within two years to finance research and experimentation or to meet increased working capital needs. I.R.C. section 1202(e)(6).

There is a ceiling on this relief. Once the corporation has been in existence for at least two years, no more than 50 percent of its assets can qualify as active solely under the working capital rule. I.R.C. section 1202(e)(6). A company that raises a large round and holds the cash beyond its reasonable working capital needs is testing that limit.

Startup and research activities get their own rule. If the corporation is engaged in startup activities described in I.R.C. section 195(c)(1)(A), activities giving rise to domestic research or experimental expenditures under I.R.C. section 174A or foreign research or experimental expenditures under I.R.C. section 174, or in-house research activities described in I.R.C. section 41(b)(4), the assets used in those activities count as active business use. I.R.C. section 1202(e)(2). This applies even before the corporation has any gross income from the future business. Pre-revenue companies can satisfy the active business requirement on the strength of their research and startup work.

Computer software gets similar treatment. Rights to computer software that produces qualifying active business computer software royalties are treated as assets used in the active conduct of a trade or business. I.R.C. section 1202(e)(8). For technology companies generating qualifying royalties from licensed software, this rule can keep the underlying software rights on the active side of the 80 percent test.

Subsidiaries

The tests apply on a look-through basis for subsidiaries. If the corporation owns more than 50 percent of a subsidiary, by vote or value, the parent is treated as owning its ratable share of the subsidiary's assets and conducting its ratable share of the subsidiary's activities, rather than simply holding the subsidiary's stock and debt. I.R.C. section 1202(e)(5). A holding company structure does not automatically fail, but the qualification analysis runs through to what the subsidiaries actually do and hold.

Why This Matters for Planning

The business activity restrictions are not a one-time checklist. They are a continuing compliance obligation that runs for substantially all of the holding period. A corporation can jeopardize QSBS eligibility mid-stream by shifting substantial assets into excluded activities, accumulating too much passive investment or real estate, or holding working capital beyond what the statute permits.

The factual nature of these tests carries its own planning consequence. The IRS has placed the section 1202(e) active business question on its no-rule list, so taxpayers generally cannot obtain a private letter ruling confirming that a corporation qualifies. Rev. Proc. 2024-3, 2024-1 I.R.B. 143. Qualification rests on the corporation's own records and analysis, which makes contemporaneous documentation all the more important.

Founders and investors who are counting on the section 1202 exclusion should be monitoring these tests from formation through exit. That includes documenting how assets are used, watching the balance sheet after large financing rounds, and reviewing any pivot or acquisition against the excluded business list before it happens.

Frequently Asked Questions

Can stock in a law firm or medical practice qualify as QSBS?

Generally, no. Section 1202 excludes the listed service fields, including law, health, accounting, consulting, financial services, and brokerage services.

Does the company need to qualify for the whole holding period?

The active business requirement must be met during substantially all of the shareholder's holding period. Qualifying only at issuance is not enough if the company later fails the tests for a meaningful period.

Can a pre-revenue startup issue QSBS?

Yes. Startup and qualifying research activity can count as active business use even before the company has gross income from its future business.

How much cash can a company hold after a financing round?

Working capital held for qualified needs can count as active business use, but the rule has limits. Large cash balances retained beyond reasonable needs can put the active business test at risk.

Does a holding company structure disqualify the stock?

Not automatically. When the ownership threshold is met, the analysis looks through to the parent corporation's ratable share of the subsidiary's assets and activities.

This article provides general information only and does not constitute legal or tax advice. Reading this article or contacting Galek Tax Law through this website does not create an attorney-client relationship.