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Tax & Compliance

OBBBA: The 2025 Big Beautiful Bill — Key Changes for Startups

Collated by Aparna Devalla, CPA

Curated by Rubric Financial

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QSBS — The Headline Win for Founders

  • §1202 EXCLUSION CAP INCREASED FROM $10M to $15M for QSBS issued after July 4, 2025. Per taxpayer, per company.
  • 10x basis cap unchanged — exclusion is still the greater of $15M or 10x the taxpayer's adjusted basis in the stock.
  • Holding period unchanged: 5 years from original issuance to qualify for the exclusion.
  • Practical: founders incorporating now or raising priced rounds after July 4, 2025 benefit immediately. Founders with older QSBS (pre-July 2025 issuance) still subject to the $10M cap on those shares. Strategy: subsequent issuances (option exercises, follow-on grants) post-July 2025 get the new $15M cap independently.

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