Step-Up in Basis: What Happens When You Die

What Happens to a Direct Indexing Account When You Die? Step-Up in Basis Explained

Step-up in basis is, in a strange way, the most powerful benefit tied to a direct indexed account, and it has nothing to do with anything the account does while you’re alive. Every post in this series has covered how these accounts generate tax losses year after year, and how that opportunity fades over time as the easy losses get used up and embedded gains pile up instead. Step-up in basis is what makes that entire problem disappear, all at once, the moment the account passes to your heirs.

Why Step-Up in Basis Matters So Much for a Direct Indexed Account

Every post in this cluster has touched on the same tradeoff eventually. A direct indexed account harvests losses aggressively in its early years, and as those easy losses get used up, what’s left behind increasingly becomes embedded, unrealized gains sitting in individual stock positions. We’ve called this ossification, and the honest answer for someone still alive and holding the account has always involved slowing down the harvesting, adding fresh cash to reset some positions at a higher basis, or eventually using a Section 351 exchange to convert the account into an ETF without triggering the gain.

Step-up in basis offers a different way out entirely, one that doesn’t require selling anything or restructuring anything during your lifetime. If you hold a mature, heavily appreciated direct indexed account until you die, every one of those individual stock positions gets its cost basis reset to fair market value at death. The embedded gains that made the account hard to unwind while you were alive simply cease to exist for your heirs. They can sell the position, consolidate it into something simpler, or keep it going, all without inheriting your original tax problem.

This is actually a bigger benefit for a direct indexed account than for a single index fund, not a smaller one. A fund has one basis. A direct indexed account has hundreds of individual tax lots, each with its own basis, and each one gets reset individually at death. If your account has spent a decade harvesting losses and building up embedded gains in a subset of its holdings, all of that gets wiped clean at once.

How This Changes the Calculus on When to Unwind an Account

This adds a real option to everything discussed elsewhere in this content. If you’re using a direct indexed account for tax loss harvesting during your lifetime, whether to offset gains from a concentrated stock position, a business sale, or ongoing tax loss harvesting against other income, and you don’t have a pressing need to liquidate it during your own lifetime, letting the account mature and pass to heirs can be more efficient than forcing an unwind while you’re still living.

That said, this is not a reason to ignore the account entirely and assume death solves everything. You still need liquidity while you’re alive, your own spending needs and required distributions from other accounts still matter, and step-up in basis only helps with the specific asset being held until death, not your overall financial plan. It’s one more tool in the sequencing decision, not a replacement for actually having a plan.

What This Means for New York Residents Specifically

Step-up in basis itself is a federal income tax rule, and New York generally follows the same federal basis reset for state income tax purposes, so there’s no separate New York wrinkle on the basis step-up itself.

Where New York does add a separate consideration is its own state estate tax, which is a completely different tax from the capital gains and basis rules discussed above. For 2026, New York’s estate tax exemption is $7,350,000 per person. Unlike the federal system, New York has a “cliff”: if a taxable estate exceeds the exemption by more than 5%, roughly $7,717,500 for 2026, the entire exemption disappears and the whole estate becomes taxable, not just the amount above the threshold. This is a meaningfully harsher rule than the federal system, and it catches people who assume they’re comfortably under the radar simply because their estate is nowhere near the federal number.

Speaking of the federal number, it changed significantly for 2026. Under the One Big Beautiful Bill Act signed in 2025, the federal estate tax exemption rose to a permanent $15,000,000 per individual, or $30,000,000 for a married couple using portability, removing a scheduled reduction that many people had been planning around. The result is that very few estates owe federal estate tax at all. Still, New York’s much lower $7.35 million threshold, combined with its cliff, means New York residents with substantial direct indexed accounts, real estate, and other assets can still owe a state estate tax bill even when there’s no federal liability whatsoever.

A Simple Example

Say you’ve held a direct indexed account for eight years. Along the way, it has generated substantial tax losses that offset gains elsewhere. By year eight, much of what’s left in the account consists of embedded gains rather than harvestable losses, exactly the ossification pattern described elsewhere in this cluster. The account is now worth $800,000, with $300,000 of that representing unrealized gain built up over the years.

If you sold the entire account during your lifetime, that $300,000 gain would be taxable, both federally and, if you’re a New York resident, at the state’s ordinary income rate with no long-term discount. If instead the account passes to your heirs at your death, its basis resets to the $800,000 fair market value at that time. Your heirs could sell the entire account immediately with little to no capital gain to report. The $300,000 problem that was building for years is gone.

Frequently Asked Questions

What is step-up in basis?

Step-up in basis is a tax rule under Internal Revenue Code Section 1014 that resets the cost basis of an inherited asset to its fair market value on the date of the original owner’s death, eliminating the built-up capital gain for tax purposes.

Does step-up in basis apply to a direct indexed account?

Yes, and it applies to each stock position within the account separately, since a direct indexed account holds many distinct tax lots rather than one bundled security. This can make the benefit larger in total dollar terms than the same reset applied to a single index fund.

Do I need a large estate for step-up in basis to apply?

No. Step-up in basis applies regardless of whether an estate is large enough to owe any estate tax. It is a separate rule from the federal or state estate tax exemption thresholds.

Does New York have a different rule for step-up in basis than the federal government?

No, New York generally follows the federal basis step-up rule for income tax purposes. New York does, however, have its own separate state estate tax with a much lower exemption than the federal government, which is a different issue entirely from the basis step-up rule.

Should I avoid selling a direct indexed account and just hold it until death instead?

Not necessarily, and not automatically. It can make sense if you don’t need the liquidity during your lifetime and the account is heavily appreciated. However, your own spending needs, other accounts, and overall financial plan still need to come first. This is a sequencing decision worth discussing directly rather than assuming it’s always the right move.