QSBS Trust Stacking Goes Mainstream

The real shift is that QSBS stacking moved from a niche move for repeat winners into a default early setup for ordinary startup founders. The law change on July 4, 2025 raised the per taxpayer cap on newly issued QSBS from $10M to $15M, so every separate non grantor trust now shelters a bigger block of gain. That makes the value of setting up several trusts at incorporation much larger, because low share values let founders move more stock before gift tax limits become binding.1 2 3 4

• The bottleneck is not just tax law, it is workflow. Traditional stacking meant paying separate estate lawyers, trustees, and valuation firms, often pushing first year cost into six figures. Dynasty turns that into a software guided trust product with low upfront pricing, which is why the strategy can now start on day one instead of after a founder is already rich.2 4
• The strategy is powerful because the exclusion applies per taxpayer, not per family. Earlier QSBS research already showed how investors and households could multiply the old $10M cap across fund partners, children, and trusts. The new $15M cap simply scales the same mechanic. Four trusts now means up to $60M of extra excluded gain before counting the founder's own exemption.3 4 1
• This is creating a new fintech category around tax structure execution. Dynasty stays narrowly focused on QSBS trust stacking and owns the trustee layer through a Nevada trust company. Valur uses a broader tax planning approach across many structures. In practice, the product wedge is not advice alone, it is who can create, fund, value, and administer trusts cheaply enough that founders act early.2 5 4

The next step is that QSBS planning becomes part of startup formation, alongside incorporation and the 83(b) election. As more founders set up trusts before a meaningful 409A exists, the winners will be the platforms that own ongoing administration, audit records, and post exit asset workflows, because the tax election is the entry point and the multigenerational trust relationship is the durable business.2 4 6