Cornerstone Guide · Published June 24, 2026 · Content updated September 16, 2026
QSBS in 2026: Which Rules Apply to Your Founder Shares?
The QSBS analysis starts with the shares, not the number of trusts. Acquisition and issuance dates determine which Section 1202 rules may apply. A trust transfer does not automatically create another exclusion or cure stock that never qualified.
What QSBS planning actually involves
QSBS stacking describes planning that seeks to use Section 1202 treatment across separate taxpayers through transfers of qualifying shares. Whether a particular arrangement works depends on the stock, the transfer, the trust's tax status and administration, the beneficiaries, and applicable anti-abuse rules. The label “non-grantor trust” is not a tax result.
Which rules apply
Two acquisition cohorts now exist. The dates below are tax acquisition dates determined after applicable holding-period rules, not simply the date a later gift was made.
| Test | Acquired on or before July 4, 2025 | Acquired after July 4, 2025 |
|---|---|---|
| Acquisition date | On or before July 4, 2025 | After July 4, 2025 |
| Holding-period framework | Requires more than five years, and the exclusion percentage depends on the acquisition period; qualifying stock acquired after September 27, 2010 through July 4, 2025 may receive a 100% exclusion. | 50% after at least 3 but under 4 years, 75% after at least 4 but under 5 years, and 100% at 5 years or more. |
| Dollar-limit starting point | $10 million | $15 million |
The dollar figures are starting points, before statutory reductions, coordination with other dispositions and the alternative ten-times-basis limit. They are limits on eligible gain; the applicable exclusion percentage must also be applied. A $15 million limit at three years is not $15 million tax-free.
The 2025 changes have different effective-date provisions. Acquisition dates, issuance dates, taxable years, earlier dispositions and any carryover holding period must be checked together. An older share does not automatically receive the newer rules because it is gifted after July 4, 2025.
The issuance test
For stock issued after July 4, 2025, the aggregate gross-asset ceiling increased from $50 million to $75 million. This is a statutory asset test, including the immediately-after-issuance test, not a shorthand for the company's fundraising valuation. The relevant $15 million and $75 million amounts are indexed for taxable years beginning after 2026. Original issuance, C-corporation status, active-business requirements and other conditions still need review.
What stacking means
The planning question is not how many trusts can be created. It is whether qualifying shares, a completed transfer, a trust's tax status and administration, the beneficiaries and the applicable anti-abuse rules together support separate treatment under Section 1202.
Giving shares to a spouse does not automatically double the per-issuer dollar limit. Joint-return and separate-return rules require their own analysis.
Grantor vs. non-grantor status
Grantor-trust status concerns who is treated as owning the trust for income tax purposes. An irrevocable trust can still be a grantor trust. Counsel and the tax advisor should establish the intended tax treatment and examine retained powers before counting any separate taxpayer exclusion.
Transfers under 1202(h)
Section 1202(h) contains rules for certain transfers, including gifts, that may preserve acquisition manner and holding-period attributes. Confirm that the actual transfer qualifies. Tacking can preserve the older acquisition cohort; it does not automatically restart the shares under the post-July 4, 2025 regime.
Illustration: two share lots
A founder owns one lot acquired in 2022 and another acquired at original issuance in 2026. An intended 2027 sale and a proposed trust gift must be analyzed lot by lot. The 2022 shares do not switch to the newer regime merely because of the gift, and the 2026 shares have not yet met the newer three-year minimum. Eligibility, the holding-period calculation, gain limits and the effect of any transfer still need factual review. This is an illustration, not a tax calculation or a client result.
State tax questions
Federal QSBS treatment does not settle the state tax result. Review the seller's and trust's tax residence, applicable state conformity rules and the transaction year with the tax advisor. Moving a trust or changing a mailing address alone does not resolve state taxation.
Risks and scrutiny
There is no universal safe waiting period. Transaction negotiations, binding commitments, valuation, transfer restrictions and assignment-of-income issues can affect what planning remains available.
- Completeness of the transfer. Retained powers and control can affect whether a gift is complete and which taxpayer is treated as owning the shares.
- Anti-abuse and step-transaction principles. Arrangements formed around an imminent sale may be examined as a single transaction.
- Reciprocal and mirror-image structures. Substantially identical trusts can be attributed back to the grantors.
- Valuation support. Transfers near a transaction invite valuation review; contemporaneous independent analysis matters.
- Issuer-level eligibility. Entity status, asset tests and active-business requirements must hold up on the facts.
Records to prepare
Please gather these items for a first conversation. Do not upload or email confidential documents through this page.
- 1.Share issuance and acquisition records
- 2.Entity and capitalization history
- 3.Issuer asset and active-business support
- 4.Prior sales and exclusions already claimed
- 5.Basis and holding periods by lot
- 6.Existing trust documents and their tax status
- 7.Proposed sale timeline and any commitments
- 8.Transfer consents required under company documents
- 9.Tax residence of the seller and any trust
- 10.Gift-tax reporting and independent valuation as applicable
FAQ
What does QSBS stacking mean?
QSBS stacking describes planning that seeks to use Section 1202 treatment across separate taxpayers through transfers of qualifying shares. Whether a particular arrangement works depends on the stock, the transfer, the trust's tax status and administration, the beneficiaries, and applicable anti-abuse rules. The label 'non-grantor trust' is not a tax result. See the section on what stacking means above.
Which Section 1202 rules apply to my shares?
That depends on the tax acquisition date of each lot and, separately, on the issuance date. Stock acquired on or before July 4, 2025 is analyzed under the older regime, which requires more than five years and a $10 million starting dollar limit. Stock acquired after July 4, 2025 may use the tiered 50% / 75% / 100% framework at 3, 4, and 5 years with a $15 million starting limit. Compare the table above and see 26 USC 1202.
Does gifting older shares after July 4, 2025 move them into the newer regime?
No. An older share does not automatically receive the newer rules because it is gifted after July 4, 2025. The 2025 changes have different effective-date provisions, and acquisition dates, issuance dates, taxable years, earlier dispositions and any carryover holding period must be checked together.
Is the $15 million limit tax-free money at three years?
No. The $10 million and $15 million figures are limits on eligible gain before statutory reductions, coordination with other dispositions and the alternative ten-times-basis limit. The applicable exclusion percentage must also be applied. A $15 million limit at three years under the newer regime is not $15 million excluded.
Did the gross-asset ceiling change?
For stock issued after July 4, 2025, the aggregate gross-asset ceiling increased from $50 million to $75 million. This is a statutory asset test, including the immediately-after-issuance test, not a shorthand for the company's fundraising valuation. The relevant $15 million and $75 million amounts are indexed for taxable years beginning after 2026. See the issuance test section.
Does an irrevocable trust count as a separate taxpayer?
Not automatically. Grantor-trust status concerns who is treated as owning the trust for income tax purposes, and an irrevocable trust can still be a grantor trust. Counsel and the tax advisor should establish the intended tax treatment and examine retained powers before counting any separate taxpayer exclusion. The IRS trust classification materials linked below are a starting point.
How does a gift affect the holding period?
Section 1202(h) contains rules for certain transfers, including gifts, that may preserve acquisition manner and holding-period attributes. Confirm that the actual transfer qualifies. Tacking can preserve the older acquisition cohort; it does not automatically restart the shares under the post-July 4, 2025 regime.
Does gifting shares to a spouse double the limit?
Giving shares to a spouse does not automatically double the per-issuer dollar limit. Joint-return and separate-return rules require their own analysis.
Do New York, New Jersey, and Ohio follow the federal result?
Federal QSBS treatment does not settle the state tax result. Review the seller's and trust's tax residence, applicable state conformity rules and the transaction year with the tax advisor. Moving a trust or changing a mailing address alone does not resolve state taxation.
How long before a sale should planning happen?
There is no universal safe waiting period. Transaction negotiations, binding commitments, valuation, transfer restrictions and assignment-of-income issues can affect what planning remains available.
How does the fee work?
We quote a fixed fee in writing for a defined scope after an intro call. Scope reflects the records review, trust drafting, valuation coordination and tax-advisor coordination your situation actually requires. Work beyond that scope is quoted separately.
Discuss your founder shares and planning timeline.
We start by identifying the records, tax advisors, valuation work and legal scope needed for your situation.
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