How Should RIAs Choose a Direct Indexing Provider That Coordinates Tax Management Across the Entire Account?

What Does a Direct Indexing Provider Do in Tax-Managed Investing for RIAs? 

Direct indexing means owning the individual securities of an index in a separately managed account instead of owning a fund that holds them. Each security carries its own tax lots, which gives a manager more positions to sell at a loss than a single fund share does. The manager can also apply the client's restrictions, such as excluding a company or a sector. 

A direct indexing provider supplies the pieces that make that work: the index data, the optimizer that decides what to buy and sell, the trading, the tax-lot accounting, and the reporting. Providers differ in which of those jobs they perform. Some supply a strategy for another platform to run. Others run the whole account. Vestmark sees the category from the infrastructure side. 

Vestmark has supported leading direct indexing providers for more than a decade, and VestmarkONE, its tax-lot level sleeve accounting engine, supports six of the top 10 managed account program sponsors. VAST is Vestmark's own outsourced tax-managed service, delivered through Vestmark Advisory Solutions (VAS). 

From that position, the differences between providers show up in what surrounds the index sleeve: how it coexists with the client's other holdings, who sets the tax limits, and how the account is traded.

What Does the Best Direct Indexing Provider Look Like? 

The best direct indexing provider for an RIA fits each client's tax situation and holds up across a whole book of taxable accounts. 

It has six traits: 

• Tax management covers the entire account, so a loss in the index sleeve can offset a gain realized elsewhere in it 
• Optimization runs daily, and an account is not locked out of harvesting after a harvest event 
• The client's dollar tax budget and personal federal and state rates drive each trade 
• Wash sales are checked across related accounts in the household 
• Restrictions and values-based screens apply at the security level 
• Reporting shows tax losses generated next to tracking error against the index 

Vestmark built VAST around these traits. The sections below turn them into evaluation dimensions, warning signs, and questions for vendors.

What Types of Direct Indexing Providers Can RIAs Choose From?

RIAs usually encounter four provider types. The type determines how far tax management reaches inside the client's account, and that reach affects results more than the name of the index being tracked.

What Should RIAs Look For in a Direct Indexing Provider?

Every direct indexing provider can show a harvested loss. The comparison becomes useful when it moves to the conditions behind those losses. Tax management reach, optimization cadence, and who sets the tax limits decide whether a harvested loss becomes a benefit the client can use.

Operational points, such as minimums, reporting, and onboarding, decide whether the program works across a book of business or in a few showcase accounts. The table below lists nine dimensions, what each one enables, and why it matters for an RIA's practice.

To compare services side by side, ask each provider the same questions from the vendor table later on this page and score the answers against these dimensions. Vestmark's position: VAST optimizes taxable accounts daily across the full account and reports both tax losses generated and tracking error.

Which Direct Indexing Providers Offer Tax-Loss Harvesting for RIAs? 

Most direct indexing providers include tax-loss harvesting, because the lot-level structure of a direct index account exists to support it. The more useful question is how each provider harvests. 

Four differences separate them: 

• Cadence: daily, monthly, quarterly, or at year-end 
• Reach: the index sleeve alone, or the entire account 
• Limits: a flat percentage of gains, or a dollar amount the client sets, with the client's own tax rates 
• Wash sale coverage: one account, or the household VAST harvests daily across the entire unified managed account. 

Accounts do not experience monthly or quarterly lockup periods following a harvest event, so optimization can continue on an ongoing basis. 

For the mechanics of harvesting, including netting rules and the wash sale window, see How Does Tax-Loss Harvesting Work, and How Can It Fund a Portfolio Transition for RIA Clients?

Does Direct Indexing Provide Better Tax-Loss Harvesting, and How Does It Handle Wash Sales? 

Direct indexing can create more harvesting opportunities than a fund because the account holds many individual securities, each with its own lots. A single stock can fall below its cost while the index rises. A fund cannot show that loss, because the client owns one share of the fund. Whether the added opportunities turn into value depends on the client having gains to offset, how often the account is optimized, and the tax budget in place. 

How Direct Indexing Handles Wash-Sale Restrictions 

A wash sale disallows a loss when the same or a substantially identical security is bought within 30 days before or after the sale. A direct index account sells individual stocks, so the optimizer has to choose replacements that keep the account close to the index without repurchasing what it sold. The rule also reaches other accounts, including a spouse's account and an IRA. 

Three questions show how a provider handles it: 

• Which accounts does the provider check? 
• Does the check cover the household, or just the account being optimized? 
• How are replacement securities chosen to keep tracking error low? 

In VAST, the optimizer checks replacement purchases against recent harvests elsewhere in the household, and potential conflicts are flagged before trades are released. A provider can check only the accounts it can see, so confirm what a provider covers before relying on the answer.

Can Direct Indexing Manage Taxes Across a Full Portfolio? 

It depends on the provider. A direct index sleeve manages the taxes of the securities inside it. A full portfolio also holds funds, SMAs, and legacy positions that generate gains of their own, and a sleeve-level manager does not see them. 

In VAST, direct indexing works alongside all underlying assets in the unified managed account, so tax management and optimization apply to the entire allocation. For example, imagine a 35% S&P 500 direct index SMA, a 25% manager-traded fixed income SMA, a 15% U.S. large cap value SMA delivered as a model, 10% EEM, 10% EFA, and 5% cash. Losses harvested in the direct index sleeve of an account like that can offset gains realized anywhere else in it. 

Two other VAST capabilities extend tax management past the index sleeve: 

• Tax overlay on any model: VAST offers tax-managed overlay for any investment strategy that can be delivered as a model portfolio, so advisors can add tax management to active strategies as well as index replication 
• Tax transition: money moving across firms, across advisors, or from a legacy offering into a tax-managed offering is transitioned over time instead of in one taxable event

Is Direct Indexing Worth It for Taxable Accounts?

Direct indexing is worth considering when a client has a taxable account, has or expects gains to offset, and wants some customization. It adds little in a tax-deferred account such as an IRA, because losses harvested there have no tax use.

What Is the Difference Between Direct Indexing and a Separately Managed Account? 

Direct indexing is an investment approach. A separately managed account (SMA) is an account structure. Most direct indexing is delivered inside an SMA: the client owns the individual securities in an account of their own, and a manager makes the trading decisions. An SMA can also hold actively selected stocks or a fixed income portfolio. A direct index SMA holds the securities of an index and manages them for taxes. 

In a unified managed account (UMA), several SMAs and funds sit in one account as sleeves, and a direct index SMA can be one of them. In VAST, the direct index sleeve sits beside other SMAs, funds, ETFs, and models, and the tax overlay works across all of them. VAS acts as the investment adviser on the direct index SMAs it manages and keeps responsibility for end-to-end portfolio management, including discretionary trading.

How Do Advisors Combine Direct Indexing with ETFs, Mutual Funds, and Other Investments? 

Direct indexing works with ETFs and mutual funds when the provider supports funds as sleeves in the same account. Advisors typically set a target allocation and assign each portion to a vehicle: a direct index sleeve for core equity exposure, a manager-run SMA for fixed income or active equity, and ETFs or mutual funds where a fund is the better fit. Vestmark describes a core direct index SMA as a way to reduce friction from both rebalancing and alpha-generating satellites. 

What a UMA Needs for Tax Management 

• Tax optimization that runs across every sleeve, including the funds 
• A tax budget set at the account level 
• One set of client restrictions enforced across sleeves 
• Support for third-party managers alongside the direct index sleeve 

In VAST, a single account can combine direct indexing, equity and fixed income SMAs, mutual funds, ETFs, interval funds, and subscription-based alternatives. VAST can also replicate a pooled vehicle such as an ETF as a separately managed account, which allows account-specific customization and a tax overlay while keeping tracking error to the ETF tight. 

For a broader look at the account structure, see Unified Managed Account Platforms for RIAs.

Why Does Direct Indexing Provider Selection Matter for RIAs? 

A direct indexing program touches several systems and teams at once, including: 

• Custodian feeds that supply cost basis and tax lot data 
• The optimizer that proposes sells and replacement buys 
• The index or model the account tracks 
• Client restrictions and values-based screens 
• Household and account group structures 
• Reporting on realized gains and losses, tax savings, and tracking error 

Without coordination across those pieces, RIAs often experience: 

• A direct index sleeve that harvests losses while gains elsewhere in the account are taxed in full 
• Tracking error that grows because tax and rebalancing decisions are made separately 
• Wash sales created across related accounts 
• Advisors who cannot explain what the program saved a client 
• Onboarding that depends on manual work for each account

How Is Direct Indexing Changing and Where Do Solutions Break Down? 

Direct indexing began as index replication with loss harvesting layered on top. Several shifts are changing what RIAs expect from a provider: 

• Direct indexing is moving from a standalone account to one sleeve in a unified managed account 
• Optimization is moving from quarterly or monthly cycles to daily 
• Tax limits are moving from a percentage of gains to a dollar amount the client is willing to pay 
• Tax management is extending from index replication to any strategy delivered as a model 
• Advisors are expected to show the tax value delivered, in addition to describing the strategy 

Providers that have not made those shifts tend to break down in five places: 

• Single-sleeve scope: harvesting confined to the index sleeve cannot net against gains in SMAs, funds, or legacy holdings 
• Calendar-driven optimization: a loss that opens and closes between review dates is gone 
• Lockup periods: an account that waits a month or a quarter after a harvest cannot act on the next opportunity 
• Top-bracket assumptions: a single federal rate misstates the value of a loss for most clients 
• Account-by-account wash sale checks: an account optimized in isolation can repurchase what a related account just sold at a loss

What Are the Warning Signs of a Weak Direct Indexing Solution?

Weak direct indexing is hard to spot in a demo, because a demo shows harvested losses and rarely shows the gains that went unoffset. The signs show up in what the provider says about scope, cadence, and reporting. An RIA can check most of them in a proposal, a sample account, and the provider's reporting.

The table below pairs each sign with what it costs the firm in practice.

How Does Choosing the Right Direct Indexing Provider Support an RIA's Growth? 

• Advisors can show taxable prospects with appreciated holdings a plan for moving into a tax-managed account over time 
• Advisors can ask clients "what are you willing to pay in taxes this calendar year?" and get an answer the program enforces 
• Daily optimization runs in the overlay, which reduces the time advisors spend on tax-lot review 
• Outcomes stay consistent as the number of taxable accounts grows 
• Advisors have tax losses and tracking error to bring to client reviews 

A firm that can explain how the direct index sleeve fits the rest of a client's portfolio gives that client a clear reason to consolidate assets.

How Does Vestmark Approach Direct Indexing for RIAs? 

Vestmark delivers direct indexing through VAST, part of Vestmark's Investment Advisory solutions, managed by Vestmark Advisory Solutions (VAS) and run on VestmarkONE. 

Within VAST: 

• VAS acts as investment adviser on direct index SMAs and maintains end-to-end portfolio management, including discretionary trading 
• VestmarkONE is a tax-lot level, sleeve accounting engine that reconciles tax lots and transactions and maintains cash at the sleeve level 
• All taxable portfolios are optimized daily, with no lockup period following a harvest event 
• Tax management applies across the entire unified managed account, including the SMAs, funds, and legacy holdings beside the direct index sleeve 
• Direct indexing, equity and fixed income SMAs, mutual funds, ETFs, interval funds, and subscription-based alternatives can sit in one account 
• Tax-managed overlay is available for any strategy that can be delivered as a model portfolio 
• Advisors can enter a capital gains budget or a Tax Reserve, which is the amount a client is willing to pay in capital gains tax in the current calendar year 
• Decisions use the client's personal federal and state tax rates, with defaults applied when income and state of residence are not available 
• A tax transition service moves appreciated legacy holdings into the target allocation over time 
• Security, sector, and industry restrictions are honored through optimization 
• Reporting covers tax losses generated and tracking error against the index 
• The direct index sleeve can be white-labeled when a firm wants to use its own brand 

Through VAS, Vestmark supports more than $50 billion in advisory assets on a platform used by more than 72,000 financial advisors.

How Should RIAs Evaluate Direct Indexing Providers When Selecting One? 

1. How far does the provider's tax management reach inside the account? 

If tax management covers only the index sleeve, a client with gains in an SMA, a fund, or a legacy position gets little benefit from a loss harvested next door. 

2. How often is each account optimized, and what happens after a harvest? 

A provider that optimizes quarterly or monthly misses losses between review dates. One that locks an account after a harvest cannot act on the next opportunity. 

3. Whose numbers drive the tax limits? 

If the answer is a flat percentage of gains and a top federal rate, advisors will be recalculating by hand, and the result will not match what the client agreed to pay. 

4. How are wash sales covered? 

If accounts are optimized one at a time, a replacement purchase in one account can disallow a loss harvested in another, and the client finds out at tax time. 

5. What else can the account hold, and can the provider handle the client's existing portfolio? 

A provider limited to a direct index sleeve and ETFs hits a wall when the client wants a third-party manager, a fixed income sleeve, or a way to exit appreciated legacy holdings.

What Questions Should RIAs Ask Direct Indexing Providers?

Explore Direct Indexing with Vestmark 

RIAs comparing direct indexing providers can see how VAST applies daily optimization, client-specific tax budgets, and tax management across a full unified managed account. Learn more about Vestmark's Investment Advisory solutions, or visit Vestmark's page for RIAs.

Key Takeaways 

• The best direct indexing provider manages taxes across the whole account, with the index sleeve as one part of it. 
• Most providers harvest losses. Cadence, reach, tax limits, and wash sale coverage separate them. 
• Direct indexing adds the most in taxable accounts where the client has gains to offset. 
• Minimums and fees should be compared by sleeve and weighed against the after-tax benefit the provider reports. 
• A direct index SMA can sit beside other SMAs, funds, and ETFs in a unified managed account, and the tax overlay should cover all of them. 
• VAST optimizes taxable accounts daily, applies the client's tax budget and personal rates, and runs on infrastructure that supports six of the top 10 managed account program sponsors.

_{Important Disclosures: Vestmark Advisory Solutions, Inc. ("VAS") is an SEC-registered investment adviser subsidiary of Vestmark, Inc., acting as a paid sub-advisor and/or overlay portfolio manager offering VAST and tax optimization services. Investing involves risk, including loss of principal; past performance does not guarantee future results. Tax-loss harvesting involves the risks that the new investment could perform worse than the original investment and that transaction costs could offset the tax benefit. Investment strategies that seek to enhance after-tax performance may be unable to fully realize strategic gains or harvest losses. There are limitations inherent in the use of an optimization methodology to manage accounts relative to a designated index, and direct index accounts can deviate from the index. Optimization tools may seek to estimate individual tax circumstances but cannot incorporate all individual tax information, which can lead to inaccuracies. UMAs are not suitable for all investors. The tax rules described on this page are general and may not apply to every client. They are not tax advice, and clients should consult a tax professional.}