Section 1202 of the Internal Revenue Code contains one of the most valuable provisions in U.S. tax law: the chance to exclude some or all of the federal gain on a future sale of C corporation stock, known as qualified small business stock or “QSBS.” S corporations and C corporations are taxed differently, as the income and losses of an S corporation flow through to its shareholders whether or not distributed, while a C corporation pays corporate income tax at the entity level and its shareholders may also pay an additional tax on any dividends they receive. Congress expanded QSBS benefits in 2025, prompting S corporation owners to ask a natural question: should they reorganize into a C corporation to take advantage of QSBS?

For the right business, the answer is a resounding “yes.” The analysis, however, is more involved than you might expect. Restructuring so that operating income runs through a C corporation potentially creates real tax costs and structural constraints that will persist, likely until an exit. Before making this change, owners need to model the entire life cycle of the investment, including the years of C corporation taxation that precede an exit.

This article summarizes six of the most important factors S corporation owners should consider before restructuring to a C corporation for QSBS purposes.

Consideration 1: Can the type of Business Qualify for QSBS Purposes?

Not every business can issue valid QSBS, and there are various specific requirements, such as: (a) the stock must be originally issued by a qualifying C corporation (i.e., directly from the C corporation); (b) the corporation must meet a “gross assets” test at issuance (since July 4, 2025, “gross assets,” a concept unique to QSBS, must be less than $75 million immediately after the contribution); (c) at least 80% of its assets must be used in a qualifying trade or business for substantially the shareholder’s entire holding period; and (d) certain industries, including financial services, hospitality, and professional services, are excluded. There are also restrictions related to stock issuances close in time to material redemptions of stock. From a practical standpoint, the S corporation may hold a license or permit that prevents (or complicates) the “standard” restructuring options.

Consideration 2: What is the Current Business Value, and How Much Will It Increase?

Restructuring an established S corporation does not make existing/deferred appreciation eligible for the QSBS exclusion. Section 1202 contains rules that effectively preserve the value at the time of the restructuring to a C corporation as taxable gain. The principal QSBS opportunity is therefore the appreciation that accrues after QSBS is issued. If the business does not expect meaningful growth between the time of the restructuring and a potential sale, a restructuring may not be worth the cost.

Consideration 3: How Long Until a Sale?

For QSBS acquired after July 4, 2025, the federal exclusion is tiered: (a) 50% benefit after three years; (b) 75% after four years; and (c) 100% after five years. If the owners are already fielding acquisition interest, there may not be time to benefit from QSBS.

Consideration 4: What Is the Cost to Maintain C Corporation Status?

QSBS understandably focuses attention on the exit, but it is important not to overlook the years before a sale. S corporations generally are subject to a single level of federal income tax at the shareholder level. C corporations pay tax at the entity level, and shareholders face a second level of tax when after-tax cash is distributed as dividends. For a business that distributes most of its cash flow, a C corporation will likely increase the total tax costs relative to an S corporation without a C corporation involved. Conversely, a growth-oriented company (together with its shareholders) that reinvests its earnings may pay less total tax utilizing a C corporation in their structure.

Consideration 5: Will the Eventual Buyer Purchase Stock?

QSBS provides its federal tax benefit when shareholders sell stock. Many strategic buyers, however, will require an asset acquisition for cleaner liability separation and a step-up in the tax basis of the assets being purchased (which likely provides substantial tax benefits to the buyer). An asset sale by a C corporation would trigger corporate-level tax that Section 1202 would not shield, though the second shareholder-level tax on a distribution may still benefit from QSBS. The expected future buyer and customary deal structure in the company’s industry warrant consideration.

Consideration 6: State Taxes.

State taxes can materially change the economics. California, for example, does not conform to the federal Section 1202 exclusion, so a California resident could receive a substantial federal benefit while still owing California income tax on the same gain. This may trigger related planning conversations, such as whether a shareholder should abandon California residency before the sale (see my prior article, “Selling Your Business?  California Residency Could Be One of Your Biggest Tax Issues”). Other states have their own variations, so the state-level analysis should not be an afterthought.

Business owners must carefully consider whether restructuring their S corporation to seek the benefits of QSBS is worth it, and every business is different. S corporation shareholders should do their homework and speak with competent tax counsel before jumping into a corporate restructure, including for QSBS purposes.

This article is for general informational purposes only and does not constitute legal or tax advice. The application of Section 1202 depends on the specific facts and circumstances of each taxpayer and business.