Direct Indexing and Estate Planning: The §1014 Step-Up Advantage

Most discussion of direct indexing focuses on the annual tax-loss harvesting benefit — the 0.5–1.5% tax alpha generated by systematically harvesting individual-stock losses in volatile markets. That alone can justify the strategy for a high-income investor with $1M+ in a taxable account.

But there's a second, less-discussed advantage that compounds over decades: the interaction between direct indexing and IRC §1014, the step-up in basis rule. When structured correctly, a direct-indexed portfolio harvests losses for you in life — reducing current-year capital gains and ordinary income — while simultaneously accumulating unrealized gains in the strongest-performing positions, which are wiped out entirely when heirs inherit at death. It's an asymmetric tax structure that holding a single ETF doesn't replicate.

What §1014 Does — and Why Direct Indexing Amplifies It

Under IRC §1014, when you die holding appreciated property in a taxable account, your heirs inherit it at fair market value on the date of death. The embedded gain — even if it accumulated over 30 years — is permanently eliminated. No capital gains tax, ever, on those gains.

This benefit is not unique to direct indexing. An S&P 500 ETF held in a taxable account gets the same step-up at death. If you paid $200,000 for ETF shares now worth $1,000,000, your heirs inherit at a $1M cost basis and owe nothing on the $800,000 gain.

Where direct indexing creates a distinct advantage is in the combination of events that unfold across the investor's lifetime:

• Losses are harvested systematically in life. A 300-stock portfolio experiences constant individual-stock volatility. A direct-indexing platform (Parametric, Aperio, Schwab Personalized Indexing, Wealthfront, Frec) harvests these individual-stock declines as tax losses — generating usable losses even in up-market years. Over 20+ years, this compounds into a substantial reduction in realized capital gains taxes.
• Winning positions are held, not sold. The same algorithm that harvests losers deliberately avoids unnecessary realization of gains in appreciated positions. These winners accumulate inside the portfolio over decades.
• Accumulated gains are stepped up at death. Each of the 300 individual stock positions gets its own basis step-up to the date-of-death market value. The 25-year gains on the strongest performers — the positions that tripled or quintupled — disappear without triggering capital gains tax.

The net result: the investor captured decades of loss-harvesting tax benefit and passed on appreciated positions at no capital gains cost. The ETF alternative captures only the step-up without the in-life harvesting, and a strategy of taking gains throughout life foregoes the step-up on every position sold.

The Math: $3M DI Portfolio Over 25 Years

Consider an investor who contributes $2M to a direct-indexed portfolio at age 55 and holds it for 25 years, dying at 80 with a portfolio grown to $5M.

Over the 25 years, at a 1.5% harvest rate on a $2M average portfolio, the DI platform generates approximately $750,000 of harvested losses. Used to offset realized gains from other sources — RSU vesting, real estate sales, business distributions — at a combined federal LTCG+NIIT rate of 23.8%¹ plus a 13.3% California state rate, the annual loss value is roughly $370 per $1,000 harvested. Total in-life tax value: approximately $278,000.

At death, the portfolio holds $5M in individual stocks. After decades of harvesting the losers and retaining the winners, the average cost basis across remaining positions is approximately $1.8M. Embedded unrealized gains: $3.2M.

The step-up at death wipes those gains entirely:

These are estimates based on a 1.5% harvest rate, 7% annual portfolio growth, and 2026 combined rates. The actual outcome depends on market path, the investor's income each year, state of residence, and whether heirs sell immediately after inheriting. But the structure of the advantage — harvest in life, step up at death — holds across a wide range of assumptions.

"Don't Sell Your Winners Until You Die" — When Deferral Beats Realization

One counterintuitive implication of this structure: within a direct-indexed portfolio, selling appreciated positions to rebalance is often the wrong move if you have a long time horizon. Every dollar of gain you realize in life is a dollar that loses the step-up benefit at death and instead pays 23.8%+ now.

The practical comparison for a position with $200,000 of embedded gains:

This decision framework requires knowing your own time horizon and liquidity plan — not something a direct-indexing platform manages on its own.

DAF Coordination: The Charitable Giving Play

For investors with charitable intent, a donor-advised fund (DAF) pairs naturally with a direct-indexed portfolio. The strategy:

1. Identify individual stocks in the DI portfolio with the largest embedded gains — often positions in a single sector that appreciated significantly over several years.
2. Donate those individual shares directly to a DAF (not cash). DAFs accept in-kind stock contributions.
3. You receive a charitable deduction for the full fair market value — up to 30% of AGI for appreciated property donated to a public DAF, with 5-year carryforward.⁵
4. You pay zero capital gains tax on the contribution. The §1001 gain is permanently eliminated rather than merely deferred.
5. The DAF sells and reinvests. The DI portfolio now holds cash or freshly purchased replacement shares with a stepped-up cost basis — resetting the harvesting clock on those positions.

Three simultaneous benefits: a charitable deduction that reduces ordinary income this year, permanent elimination of the embedded capital gain, and a portfolio reset that increases future TLH potential. For a $100,000 position with a $70,000 gain, donating to a DAF rather than selling avoids $26,180 in federal capital gains tax (at 23.8%) while also generating a $100,000 income deduction worth up to $37,000 in federal tax savings at the 37% bracket — before any state benefit.

Annual Gift Exclusion: Gifting DI Positions to Adult Children

In 2026, the annual gift tax exclusion is $19,000 per recipient per donor — $38,000 per recipient for a married couple.² For DI investors with adult children in lower tax brackets, gifting appreciated individual stocks from the DI portfolio each year can be efficient.

The mechanics:

• The recipient takes your cost basis (carryover basis under §1015 — gifts during life do not receive a §1014 step-up).
• If the recipient is in the 0% LTCG bracket ($0–$98,900 MFJ in 2026),³ they can sell the gifted shares and pay zero federal capital gains tax on the gain you'd have paid 23.8% on.
• For five adult children, a married couple can transfer $190,000/year in stock annually with no gift tax return, moving appreciated positions out of the estate at a stepped-down capital gains cost.

Kiddie tax caveat (IRC §1(g)): If the recipient is under age 19, or a full-time student under age 24, net unearned income above $2,500 (2026) is taxed at the parent's marginal rate — eliminating the bracket-arbitrage benefit. This strategy works cleanly for adult children with their own earned income who are beyond the kiddie tax age.

Gifts vs. step-up at death: Because gifts carry over your basis (no step-up), gifting a $200,000 position with a $150,000 gain passes the $150,000 tax liability to the recipient rather than eliminating it. For positions you expect to grow substantially, holding until death and letting heirs receive the step-up may be mathematically superior — unless the recipient's bracket advantage is large enough to outweigh the loss of the step-up.

OBBBA Context: Does the $15M Exemption Make This Moot?

The One Big Beautiful Bill Act (effective January 2026) permanently raised the federal estate and gift tax basic exclusion amount to $15,000,000 per individual ($30M per couple), indexed for inflation from 2027 onward.⁴ For the vast majority of HNW investors, this removes federal estate tax as a planning constraint.

A common misconception follows: "My estate is well under $15M — estate planning for my DI portfolio doesn't matter."

This conflates two completely separate taxes:

• Estate tax is a transfer tax levied on estates above the exemption threshold. The OBBBA effectively eliminated this for most families.
• Capital gains tax on inherited assets is an income tax liability on unrealized appreciation. IRC §1014 eliminates this for assets held in taxable accounts at death — and this has nothing to do with whether an estate owes estate tax.

A $3M direct-indexed taxable portfolio with $1.5M in embedded gains will generate $357,000 in federal capital gains taxes if heirs sell without a step-up. With §1014, those heirs owe $0. This is true whether the estate is $3M or $30M — well below either threshold for estate tax. The step-up benefit is a capital gains benefit, not an estate tax benefit.

State estate taxes remain relevant. New York (threshold ~$7.16M in 2026), Massachusetts ($2M), Oregon ($1M), and Washington (~$2.19M) impose their own estate taxes far below the federal exemption. Investors in these states may still have estate-tax-driven planning needs even with the federal $15M exemption intact.

Why Integration Requires an Advisor

The strategies above don't happen automatically — and a direct-indexing platform alone can't execute them. The platform's algorithm harvests losses and tracks individual-stock basis. It doesn't know:

• Which positions you intend to hold until death for the step-up vs. which you'll need to liquidate for spending
• Whether a specific position is a better candidate for a DAF donation or an annual gift to a child
• Whether a concentrated appreciated position should be held for the step-up or donated to avoid permanently embedding a concentration risk in your estate
• How trust structures (irrevocable trusts, GRATs, SLATs) interact — assets held in certain trusts do not receive a §1014 step-up, so placing DI positions inside the wrong trust structure eliminates a key benefit
• What your state-level estate tax exposure is and how it changes the analysis

Coordinating DI with estate planning requires an advisor who sees the whole picture: account types, trust structures, estate documents, charitable goals, family tax brackets, and the DI platform's position-level detail — all at once.