One Big Beautiful Bill Act: QSBS Changes Summary & Executive Checklist (2025)

The principal changes and their effective-date rules

• For qualified stock acquired after July 4, 2025, a tiered exclusion applies after at least three years: 50% after three years, 75% after four years, and 100% after five years or more.
• The per-issuer dollar limitation increased from $10 million to $15 million for qualifying stock acquired after July 4, 2025, subject to the statute’s coordination rules.
• The qualified-small-business gross-asset threshold increased from $50 million to $75 million for stock issued after July 4, 2025.
• The $15 million and $75 million figures are subject to inflation adjustments for taxable years beginning after 2026.
• Stock acquired on or before July 4, 2025 remains subject to the earlier holding-period and limitation framework.

The stock and company still must meet the underlying requirements

Section 1202 generally requires original-issue stock in a domestic C corporation, acquired in an eligible exchange for money, property other than stock, or services. The corporation must meet the gross-asset test at the relevant time and satisfy the active-business requirements during substantially all of the shareholder’s holding period.

Additional rules address excluded business activities, redemptions, reorganizations, pass-through ownership, transfers, aggregation, contributed property, and other events. A token, warrant, SAFE, partnership interest, or secondary purchase is not automatically treated as qualified stock. Those facts require specific legal and tax analysis.

Executive records checklist

• Formation documents, tax classification, and evidence that the issuer was a domestic C corporation when relevant shares were issued
• Stock purchase agreements, board approvals, capitalization records, payment evidence, and exact issuance dates
• Contemporaneous gross-asset calculations immediately before and after material issuances
• Documentation for contributed digital assets or other property, including fair market value and the valuation method used
• A history of the company’s business activities, subsidiaries, treasury assets, and use of capital
• Redemptions, repurchases, conversions, reorganizations, transfers, gifts, trusts, and pass-through ownership changes
• A shareholder-specific holding-period schedule and any prior Section 1202 gain associated with the issuer
• Written analysis from qualified tax and legal professionals before a financing, restructuring, transfer, or sale

Digital asset companies need extra attention to entity and asset facts

Web3 companies often combine operating entities, foundations, token issuers, protocol activity, intellectual property, and digital asset treasuries. The issuer of the stock may not be the entity conducting every material activity. Contributions of appreciated property can also affect the gross-asset calculation because the statute contains a special rule for contributed property.

A clean cap table is not enough. The accounting record should be able to support which entity received each contribution, the value used, how capital was deployed, which entity performed the operating activity, and whether later transactions changed the relevant facts.

Treat the potential exclusion as a documented position, not a label

No website checklist can establish QSBS eligibility. The purpose of this checklist is to preserve the evidence a tax attorney, CPA, or other qualified advisor will need to evaluate the statute. Founders should seek that review before—not only after—a liquidity event.