Understanding Direct Indexing for Tax Efficiency

If you've recently come into significant wealth-through a business sale, an inheritance, a legal settlement, or NIL income-one of the first questions you'll face is how to keep more of what you've earned. Tax planning isn't just a line item on your to-do list; it's the difference between building a lasting legacy and watching a chunk of your windfall disappear to the IRS. That's where understanding direct indexing for tax efficiency becomes essential.

Direct indexing is an investment strategy that replicates the performance of a market index, like the S&P 500 or Russell 3000, by holding individual stocks in your own account rather than buying a single fund. It gives you direct ownership of each position, which opens the door to tax loss harvesting, values-based customization, and a level of tax control that mutual funds and ETFs simply cannot match. Direct indexing is beneficial for individuals in higher tax brackets, and it has grown rapidly-assets in direct indexing products reached $462 billion in 2022.

At Third Act Retirement Planning, we serve as fee-only fiduciaries helping clients navigate sudden wealth with purpose, integrating investment strategies, tax planning, and biblical stewardship. This article focuses on practical, real-world tax efficiency-not stock-picking or trying to beat the market.

What Is Direct Indexing? (And How It Differs From ETFs and Mutual Funds)

Direct indexing means owning most or all of the individual securities in a benchmark index inside a separately managed account, rather than owning shares of a pooled fund. When an investor owns a share of an S&P 500 ETF, they own a slice of one fund. When they invest directly through direct indexing, the investor owns the underlying securities themselves.

A direct indexing portfolio is constructed to closely track a benchmark like the S&P 500 or Russell 3000. The investment manager uses algorithms and portfolio management software to buy each constituent stock in proportions that mirror the index. Customization is layered on top-screening out certain companies, applying factor tilts, or adjusting weights to match investment objectives. Direct indexing enables ownership of individual securities in portfolios, which is what makes the tax magic possible.

Here's how these vehicles compare:

Modern technology has made direct indexing accessible below ultra-high-net-worth levels. Commission-free trading, fractional shares, and automated platforms mean that many investors-not just those with $10 million portfolios-can now benefit. Firms like Morgan Stanley, Vanguard, and others have entered the space. Still, direct indexing typically requires a higher minimum investment than ETFs. It is implemented as a discretionary account managed by an advisor or investment manager, not a DIY stock-picking strategy.

How Direct Indexing Works in a Taxable Account

Direct indexing strategies are most powerful in a taxable account. Why? In an IRA or 401(k), realized gains and losses have no immediate tax consequence-there's no tax bill to reduce. Tax loss harvesting only creates value when losses can offset taxable gains or ordinary income in the current or future years.

Here's the step-by-step:

1. Fund the account. Cash or securities are placed into a separately managed account at a brokerage.

2. Build the portfolio. Software buys a representative basket of stocks mirroring the chosen index-hundreds of positions, each with its own cost basis.

3. Monitor and harvest. The platform continuously scans for stocks trading below their purchase price, creating tax loss harvesting opportunities.

4. Rebalance. Periodically, the portfolio is rebalanced to stay aligned with index returns and target weights.

The individual cost basis for each holding is critical. It determines whether a position has a gain or loss, whether that gain is short-term or long-term, and how much tax you owe on any sale. Accurate tracking is what allows the strategy to deliver tax-efficient results.

Consider this: despite the S&P 500 finishing positive in 2024, roughly 71% of its constituent stocks experienced a drawdown of 5% or more during the year. That means hundreds of positions dipped below cost at some point-creating opportunities to harvest losses even while the overall index climbed.

Direct indexing may not be cost-effective for very small balances due to minimums and the complexity of managing hundreds of positions. For accounts below low six figures, passive ETFs or index mutual funds may make more sense after accounting for higher fees and transaction costs.

Tax Loss Harvesting: The Core Tax Advantage of Direct Indexing

Tax loss harvesting is the practice of selling a security at a loss to realize that loss for tax purposes. Realized capital losses first offset capital gains dollar for dollar. Any remaining losses can be carried forward indefinitely for future use.

Investors can harvest losses at the security level with direct indexing-something impossible in a traditional index fund or ETF. When you own a pooled fund, you can only sell the entire fund at a gain or loss. With direct indexing, you sell the specific stocks that are down while keeping the winners. This is why direct indexing provides superior tax efficiency compared to traditional funds. Individualized tax-loss harvesting can generate capital losses to offset capital gains that arise from other parts of your financial life.

Concrete example: Suppose you sold a family business in 2026 and realized $500,000 in long-term capital gains. At a combined 23.8% federal rate (including the Net Investment Income Tax), your tax liability on that gain alone would be about $119,000. If your direct indexing portfolio had harvested $25,000 in tax losses earlier that year, those losses could reduce your taxable gains to $475,000-saving roughly $5,950 in federal taxes. In a state with income tax, the savings grow further.

Automated platforms can sell underperforming stocks for tax-loss harvesting on a continuous basis-daily scans, not just year-end. J.P. Morgan's research found that daily review yielded approximately 30 basis points more tax alpha per year than monthly review. Over a decade, that systematic approach can create a significant bank of carryforward losses.

Tax loss harvesting does not change the underlying economics of a particular investment. It changes the timing of when taxes are paid, which can improve after-tax compounding. That timing advantage is the source of the 1% to 2% boost in after-tax returns that personalized indexing can deliver.

Tax Loss Harvesting Even When the S&P 500 Is Positive

Many investors assume that if the market is up, there are no losses to harvest. That's one of the biggest misconceptions. Tax-loss harvesting opportunities exist even in positive market years.

In 2025, approximately 83% of S&P 500 constituents experienced a drawdown of 5% or more at some point, even though the index ended the year in positive territory. Markets do not move in straight lines, and individual stocks diverge widely from the overall index.

In 2026, geopolitical and policy events have only amplified individual stock volatility. Markets reacted to global tariffs under the trump administration, a government shutdown threat, executive order changes affecting key sectors, and supreme court rulings touching tax policy. Homeland security concerns, a regime change abroad when an opposition movement captures venezuelan president Maduro, a supreme leader's policy shifts in Asia, and a prime minister's landslide victory in a European election where the first woman to hold the post became the first female head of government in that country's american history analog-all created sector-specific dislocations. Even gold bars hitting record highs, a joint session of Congress debating fiscal policy, and Morgan Stanley adjusting forecasts after a central tower project default contributed to the kind of dispersion that makes a direct indexing strategy so effective. Whether it was the first female trainer to win a second title at a premier horse racing event or million people marching for economic reform, every headline moved certain stocks in ways that created opportunities to harvest losses.

In a year when the S&P 500 finishes up 18%, a direct indexing portfolio might still realize $40,000–$80,000 of harvested losses for a $1 million investor in a higher tax bracket.

This capability is especially valuable for clients with large capital gains from events like an inheritance liquidation, stock-option exercises, or a business exit. Investors can harvest losses even in positive market years, and those harvested losses can be deployed for offsetting capital gains from those life events.

Wash-Sale Rules and Staying Within IRS Guidelines

The IRS wash sale rule prevents you from deducting a loss if you buy a substantially identical security within 30 days before or after the sale. That means you can't sell Apple at a loss on Monday and buy it back on Wednesday to claim the deduction. The IRS defines this rule in Publication 550.

Direct indexing systems manage around wash sales by using substitute stocks-replacing Coca-Cola with PepsiCo, for example-or sector ETFs and factor tilts that maintain similar market exposure without being substantially identical. The platform tracks trading dates, tickers, and tax lots with precision, something that would be extremely error-prone if done manually.

If you also trade similar ETFs or mutual funds in other accounts (including an IRA or a spouse's account), coordination is essential. A wash sale can be triggered across accounts. We strongly recommend consulting your tax advisor, and you should always consult a legal advisor prior to implementing complex strategies across multiple accounts.

At Third Act Retirement Planning, we integrate portfolio management with proactive tax planning so that harvesting decisions and tax returns are aligned. There is no gap between what happens in the portfolio and what your CPA files.

Who Benefits Most from Direct Indexing? (And When It May Not Fit)

Direct indexing is most compelling for investors in a higher tax bracket with substantial assets in taxable accounts and a long time horizon. High-net-worth individuals see greater tax benefits from direct indexing, and personalized indexing can boost after-tax returns by 1% to 2%-a meaningful edge when compounding over decades.

Scenarios where direct indexing adds clear value:

• Recent windfall (inheritance, business sale, legal settlement)

• Concentrated positions in a single stock needing diversification

• Low-basis index funds where selling would create large taxable gains

• Ongoing high capital gains from real estate, options, or business income

When an ETF or index fund is likely more appropriate:

• Small taxable accounts (below $250,000, depending on provider)

• Very simple financial situations with minimal gain

• Investors who strongly prefer minimal complexity

• Most wealth held in tax-advantaged (retirement) accounts

Direct indexing carries certain risks, including tracking error from customization, transaction costs from frequent trading, and the risk that tax law changes could alter the benefit. It also involves higher fees than a simple index fund. The strategy is not a guarantee of better future results-past performance of any specific investment or strategy is not indicative of future results.

The key is viewing direct indexing within a broader financial plan-retirement timing, charitable giving, estate goals, and biblical stewardship-not as a standalone trick.

Special Considerations for Sudden Wealth Recipients

Heirs who inherit a large taxable portfolio may receive a step-up in cost basis, effectively resetting the starting line. This creates a unique "fresh start" for direct indexing-from day one, every future dip in an individual stock creates a harvestable loss. For guidance on navigating an inheritance, see our article on the best way to invest an inheritance.

Business owners selling a company can use harvested losses from a direct indexing strategy to offset the capital gains in the year of sale and in future years. A family business that sells for millions can generate a tax bill that feels staggering-losses banked in a direct indexing portfolio become a powerful tool for softening that blow.

NIL earners, legal settlement recipients, and lottery winners face similar dynamics: large lump sums, newly taxable investments, and the need for disciplined stewardship. Direct indexing helps these clients manage market conditions and tax liability from the start.

Sudden wealth often brings emotional and spiritual questions alongside financial ones. At Third Act Retirement Planning, we seek to apply biblical wisdom to how wealth is stewarded-including how we approach tax decisions. Avoiding the 12 deadly mistakes of sudden wealth starts with a plan that integrates purpose with prudence.

Designing a Direct Indexing Strategy Aligned With Your Values and Legacy

Beyond taxes, direct indexing allows customization of portfolios based on investor values. Personalized indexing allows investors to align portfolios with values-a benefit that pooled funds simply cannot offer.

Examples of value-based screens:

• Excluding certain companies involved in gambling, pornography, or abortion

• Direct indexing enables customization to exclude specific stocks or sectors like weapons manufacturing

• Investors can customize holdings based on ESG or SRI preferences, overweighting companies with strong social impact

Factor tilts-value, quality, dividend focus-can be layered on top of a core index exposure while still preserving most tax loss harvesting benefits. The trade-off is modest tracking error, which most values-aligned clients consider worthwhile. For a deeper look at ESG investing strategies, see our dedicated guide.

Direct indexing can also implement strategies like tax-smart charitable giving. Charitably minded clients can donate appreciated individual positions directly to ministry or charity, avoiding capital gains and potentially itemizing a larger deduction. This is one of the most tax-efficient charitable giving approaches available. Used for illustrative purposes, consider a client who donates a stock that doubled in value: they avoid the gain entirely and receive a deduction for the full market value.

These choices fit naturally within biblical stewardship-using wealth intentionally, avoiding greed, and seeking to bless others through thoughtful, tax-smart generosity. When opportunities arise to reduce taxes and increase giving, that's alignment worth pursuing.

Coordinating Direct Indexing With Estate and Legacy Planning

Harvested tax losses are personal tax attributes and do not transfer at death. That means they should be used thoughtfully during the investor's lifetime rather than left unrealized. A good plan ensures losses are deployed against gains before it's too late.

Direct indexing integrates well with strategies like donor-advised funds, charitable remainder trusts, or gifting low-basis shares to heirs. For example, you might use harvested losses to offset gains from selling a legacy family property while simultaneously donating appreciated shares from your investment portfolios to a donor-advised fund.

Account titling-individual, joint, or revocable trust-and beneficiary designations should be coordinated with the direct indexing implementation. The wrong structure can create unintended tax consequences or wash sale complications.

Third Act Retirement Planning serves as the coordinator between investment, tax, and estate professionals. We keep the strategy coherent, aligned with your legal advisor's recommendations, and grounded in the values that matter most to you.

Putting It All Together: Is Direct Indexing Right for Your Third Act?

Direct indexing gives investors direct ownership of individual stocks, the ability to harvest losses systematically, customization aligned with faith and values, and a path to reduce tax drag across their investment portfolios. Tax-loss harvesting captures losses to offset capital gains, and personalized indexing can boost after-tax returns by 1% to 2% for those in the right circumstances. Direct indexing assets reached $462 billion in 1Q 2022-evidence that many investors have already recognized its potential benefits.

But tools are only as good as the plan behind them. Tax loss harvesting and customization serve a larger purpose: sustainable retirement income, reduced tax liability, and a legacy aligned with your investment objectives and convictions. We encourage readers not to implement complex tax strategies in isolation. The real risk isn't complexity-it's acting without a complete picture.

At Third Act Retirement Planning, we evaluate whether direct indexing fits a new client through a structured process: a discovery call, analysis of taxable accounts and concentrated positions, tax projections based on current and expected income, and a values discussion rooted in biblical stewardship. We look at the whole picture before recommending any particular investment approach.

Nothing in this article constitutes tax, legal, or investment advice for your specific situation. Always consult your tax advisor and legal advisor before making changes to your investment strategy. All examples are for illustrative purposes only and are not a guarantee of any outcome.

Ready to explore whether a tax-efficient direct indexing strategy belongs in your plan? Schedule a discovery call with Third Act Retirement Planning today. Let's build a plan that turns your wealth into purpose.