The §1202 QSBS MSO Diligence Checklist

INSTITUTIONAL CHECKLIST · §1202 QSBS PLANNING

A transaction-time diligence checklist for evaluating potential §1202 qualified small business stock positions in a C-corporation MSO context, including 2025 OBBBA framework.

By Alex Jones, EA, CFP®, CLU®, ChFC®, CEPA, Managing Principal, Guardian Tax Consultants®.


How to use this checklist

Section 1202 qualification is determined at the moment of a triggering transaction (typically a stock sale or qualifying redemption). This checklist surfaces the diligence questions a deal team, tax counsel, and CPA firm should answer well before transaction time to preserve the position and to give counsel a clean record to opine on. It is a diligence tool, not a tax opinion.

Note. §1202 qualification is determined at transaction time. This checklist surfaces issues for counsel review; it is not a tax opinion.

1. Original issuance

  • ☐ Stock acquired directly from the corporation (not on a secondary market).
  • ☐ Acquisition for money, property other than stock, or services.
  • ☐ Issuance date and consideration documented in the corporate record.
  • ☐ Stock certificate or book-entry record preserved.
  • ☐ No prior secondary transfer that would break original-issuance treatment.

2. Gross assets ($75M post-OBBBA)

  • ☐ Aggregate gross assets at and immediately after issuance verified against the post-OBBBA $75 million threshold.
  • ☐ Asset roll-up across the controlled group performed correctly.
  • ☐ Pre-issuance asset transfers reviewed for taint.
  • ☐ Subsequent gross-asset growth tracked for purposes of later issuances.
  • ☐ Workpapers preserved for transaction-time verification.

3. Active business test

  • ☐ At least 80% of corporate assets used in the active conduct of a qualified trade or business.
  • ☐ Working capital and investment-asset positions reviewed for the active-business limitations.
  • ☐ Real-estate holdings reviewed for active-conduct treatment.
  • ☐ Active business test re-tested across the relevant holding period.
  • ☐ Annual documentation of asset-use composition.

4. Qualified trade or business under §1202(e)(3)

  • ☐ Confirm the trade or business is not on the §1202(e)(3) exclusion list (health, law, engineering, architecture, accounting, actuarial science, performing arts, consulting, athletics, financial services, brokerage, hospitality, farming, mining, banking).
  • ☐ For potentially excluded categories, document the principal-activity analysis.
  • ☐ For mixed-activity businesses, document the asset-use and revenue-mix analysis.
  • ☐ Counsel sign-off on the qualified-business determination.
  • ☐ Re-test on material business changes.

5. Redemption taint under §1202(c)(3)

  • ☐ Identify all redemptions of corporate stock in the relevant lookback windows.
  • ☐ Apply the de minimis and significant redemption rules.
  • ☐ Apply related-party redemption rules with care.
  • ☐ Document analysis of any potentially tainting redemptions.
  • ☐ Coordinate with counsel before executing any redemption during the relevant windows.

6. Holding period (3/4/5-year tiers post-OBBBA)

  • ☐ Confirm acquisition date for each holder.
  • ☐ Track holding period against the post-OBBBA 3-year, 4-year, and 5-year exclusion tiers.
  • ☐ Document tacking rules for gifts, transfers at death, and partnership distributions where applicable.
  • ☐ Plan transaction timing around the relevant tier thresholds.
  • ☐ Refresh the holding-period schedule at each transaction trigger.

7. State conformity

  • ☐ Identify the state of residence of each shareholder.
  • ☐ Confirm state conformity to federal §1202 (full conformity, partial conformity, or non-conformity).
  • ☐ Model state-tax impact assuming non-conformity in the relevant residence states.
  • ☐ Review any residency-change planning with counsel.
  • ☐ Document the state-tax analysis in the transaction file.

8. Transaction structure (stock sale vs asset sale)

  • ☐ Confirm the transaction is structured as a stock sale to qualifying shareholders, or analyze alternative structures (e.g., installment sale, partial sale).
  • ☐ Identify buyer preference and negotiating posture.
  • ☐ Document the structure rationale and any concessions made to preserve §1202 treatment.
  • ☐ Coordinate §1202 positioning with any §338(h)(10), §336(e), or other elections under consideration.
  • ☐ Final counsel sign-off prior to closing.

Disclosures

This checklist is published by Guardian Tax Consultants® for educational and diligence purposes. It is not a tax opinion, legal opinion, or financial-product recommendation, and it does not establish an advisor-client relationship. Specific facts, applicable state law, and the federal tax code in effect at the relevant time will govern any actual planning. CPA firms, tax counsel, and family-office advisors should review each item with qualified professionals before relying on it. Past results do not guarantee future outcomes.


About the author
Alex Jones, EA, CFP®, CLU®, ChFC®, CEPA, is Managing Principal of Guardian Tax Consultants®, an institutional advisory firm focused on Management Services Organization design, governance, and exit planning. GTC coordinates with CPA firms, family offices, tax counsel, and private equity deal teams across the United States.