Best Robo-Advisors for High Net Worth: Where the Fee Math Inverts
Last updated August 2026
Short answer
At seven figures the fee becomes the largest line item in the decision, and the features that justify it finally unlock. Wealthfront leads on a large taxable balance because direct indexing has enough positions to matter; Schwab's premium tier is notable for flat pricing that gets cheaper in percentage terms as the balance grows. But the honest comparison at this size is not between robo-advisors: it is between 0.25% and a flat-fee advisor, because above roughly $500,000 a retainer often costs less than a percentage for advice that does not get proportionally harder. And moving an appreciated portfolio in can trigger a tax bill that dwarfs several years of fee. Walnut is not a robo-advisor and is not an investment adviser.
Everywhere else in this cluster, the advice is that the fee matters less than people think. Here it inverts. The same quarter of a percent that is a rounding error on a starter account is thousands of dollars a year at this balance, for an allocation and a rebalancing rule, and the question stops being which robo-advisor and starts being whether percentage-of-assets pricing makes sense for you at all.
Where percentage pricing stops making sense
| Balance | Robo at 0.25% | Advisor at 1% | What that suggests |
|---|---|---|---|
| $250,000 | $625 | $2,500 | A flat retainer is probably dearer |
| $500,000 | $1,250 | $5,000 | Roughly the crossover for many flat-fee arrangements |
| $1,000,000 | $2,500 | $10,000 | A flat fee is very likely cheaper than 1% |
| $2,500,000 | $6,250 | $25,000 | Percentage pricing is hard to justify on work done |
| $5,000,000 | $12,500 | $50,000 | Only a genuinely complex situation supports this |
The right-hand column is the point. A flat retainer is poor value on $250,000 and obviously good value on $2,500,000, because the work of advising you does not multiply by ten when your balance does. The fee models are compared in is a robo-advisor cheaper than a financial advisor.
The options at this balance
| Option | What it costs | What it brings at scale |
|---|---|---|
| Wealthfront | Around 0.25% of assets a year, so about $2,500 on $1,000,000 | Direct indexing on large taxable balances, holding individual shares so harvesting works at the stock level |
| Keep your own broker (not a robo-advisor) | No advisory fee at all, at any balance. You pay fund expense ratios only | Nothing is sold to fund someone else's model allocation, which matters most here because a large portfolio usually has large embedded gains |
| A flat-fee or hourly advisor | A fixed annual retainer or an hourly rate, which stops scaling with your balance | Real planning across your whole situation, priced by the work rather than by the assets |
| Empower's advisory service | A percentage of assets stepping down on larger balances, above the robo standard | Dedicated human advisors alongside a managed portfolio, built for larger accounts |
| Betterment | Around 0.25% on the core plan, with a higher tier adding human advisor access | Tax-coordinated portfolios across the taxable and retirement accounts it can see |
| Schwab Intelligent Portfolios | No advisory fee on the base tier; premium tier adds planning for a flat subscription | The premium tier's flat pricing is unusual in the category and gets cheaper in percentage terms as the balance grows |
How this was ranked
On what actually changes at scale: whether the tax toolkit is deep enough to earn a percentage fee, whether the pricing stops scaling with assets, what happens to an existing appreciated portfolio on the way in, and whether the option can handle complexity a model portfolio cannot see.
To be upfront, since this is our site: the second entry is Walnut's category and is not a robo-advisor. It sits second on narrow and specific ground, which is that a large portfolio is usually an existing portfolio with embedded gains, so anything that sells it to buy a model allocation starts from behind. It is not second on planning, because it does none. Across this cluster the same option sits at 1, 3, 4, 5, 5 and 6 depending on what the page ranks on.
1. Wealthfront
What it costs. Around 0.25% of assets a year, so about $2,500 on $1,000,000
What it brings at scale. Direct indexing on large taxable balances, holding individual shares so harvesting works at the stock level
Best for. A large taxable account where direct indexing has enough positions to make the tax management real
Where it falls short. The percentage keeps scaling with the balance while the work does not, which is the structural problem with AUM pricing.
2. Keep your own broker (not a robo-advisor)
What it costs. No advisory fee at all, at any balance. You pay fund expense ratios only
What it brings at scale. Nothing is sold to fund someone else's model allocation, which matters most here because a large portfolio usually has large embedded gains
Best for. Someone who already holds an appreciated portfolio and would trigger a serious tax bill by moving it
Where it falls short. No management, no harvesting, no planning, and at this balance the planning is the part worth paying for. This is a cost answer, not a complexity answer.
3. A flat-fee or hourly advisor
What it costs. A fixed annual retainer or an hourly rate, which stops scaling with your balance
What it brings at scale. Real planning across your whole situation, priced by the work rather than by the assets
Best for. Balances large enough that 1% is a five-figure number for advice that does not get five times harder
Where it falls short. You have to find a good one, and nobody manages the portfolio day to day unless you also arrange that.
4. Empower's advisory service
What it costs. A percentage of assets stepping down on larger balances, above the robo standard
What it brings at scale. Dedicated human advisors alongside a managed portfolio, built for larger accounts
Best for. Larger balances that want a person without assembling the relationship themselves
Where it falls short. Considerably more expensive than a pure robo-advisor, and the percentage model still scales with assets.
5. Betterment
What it costs. Around 0.25% on the core plan, with a higher tier adding human advisor access
What it brings at scale. Tax-coordinated portfolios across the taxable and retirement accounts it can see
Best for. Larger balances that want asset location handled across accounts on one platform
Where it falls short. Coordination only covers accounts held with them, and at this size much of your picture usually is not.
6. Schwab Intelligent Portfolios
What it costs. No advisory fee on the base tier; premium tier adds planning for a flat subscription
What it brings at scale. The premium tier's flat pricing is unusual in the category and gets cheaper in percentage terms as the balance grows
Best for. Large balances wanting planning access at a fee that does not scale with assets
Where it falls short. The required cash allocation becomes a larger absolute drag as the balance grows.
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The embedded-gains problem
This is the largest and least discussed cost at this balance. Most platforms sell what you transfer in to buy their own model portfolio. On a large portfolio held for a decade, that realises substantial gains in a single tax year, on their timing rather than yours, and it can cost more than several years of the advisory fee it was meant to be compared against.
Ask before funding whether they will hold existing positions, transition them gradually across tax years, or sell immediately. A platform that can accept and work around your existing holdings is worth materially more at this size than one with a slightly better feature list. The reverse case is in when to leave a robo-advisor.
Where the balance is often not the constraint
At this level the interesting question is frequently not which platform but how many. Large balances tend to be spread across a taxable account, one or more retirement accounts, sometimes a spouse's accounts, and often a legacy account nobody has touched in years.
That fragmentation defeats most of what a platform can do for you. Asset location only works across accounts the platform can see. Tax-loss harvesting in one account is blind to a wash sale created by a purchase in another. And a risk questionnaire answered separately per account can produce a combined position nobody intended.
The practical move is usually consolidation before optimisation: work out what the whole picture is, then decide what should sit where. That is a planning exercise rather than a platform choice, and it is the point at which paying a flat-fee advisor for a few hours tends to return more than any difference between the options above.
What none of them do
Concentrated stock in your employer, equity compensation and vesting schedules, business interests, property, estate and beneficiary planning, and coordinating across a household. Those are the things that usually come with a large balance, and none of them is a portfolio-allocation problem, so none of them is solved by anything on this page except the human advisor.
If your situation includes them, the useful comparison is not which robo-advisor but which advisor and on what fee model.
FAQ
Why does having accounts in several places matter?
It defeats most of what a platform can do. Asset location only works across accounts it can see, tax-loss harvesting in one account is blind to a wash sale created by a purchase in another, and a questionnaire answered separately per account can produce a combined position nobody intended. Consolidation usually returns more than optimisation at this size.
Is direct indexing worth the balance threshold?
It can be in a large taxable account, because holding the index's individual shares gives harvesting many more positions to work with than one fund does. Below the threshold it is not available, so you would be paying a rate that includes it without receiving it, which is an argument for checking where the threshold sits before choosing on that feature.
What is the best robo-advisor for high net worth investors?
Wealthfront on a large taxable balance, because direct indexing finally has enough individual positions for its tax management to matter. Betterment if you want asset location coordinated across accounts held with them. Schwab's premium tier is worth a look because its flat subscription gets cheaper in percentage terms as the balance grows, which is unusual in a category priced on assets.
Is a robo-advisor worth it for a large portfolio?
The arithmetic changes and does not obviously favour it. At 0.25%, a $1,000,000 balance costs about $2,500 a year, which is far less than a 1% advisor but is real money for an automated allocation. It is worth it if the tax features earn their keep in a taxable account; it is harder to justify in a retirement account where those features do nothing.
At what balance should I stop paying a percentage fee?
There is no fixed number, and the useful test is comparing the percentage to a flat retainer for the same work. Somewhere around $500,000 to $1,000,000, many flat-fee arrangements become cheaper than 1%, and the gap widens fast above that because the fee scales with assets while the work does not.
Is direct indexing worth it?
In a large taxable account it can be, because holding the index's individual shares gives tax-loss harvesting many more positions to work with than a single fund does. In a retirement account it is worth nothing, since there are no taxable gains to manage. Below the balance threshold it is usually not available at all, so you would be paying a rate that includes it without receiving it.
Should someone with a large portfolio use a human advisor instead?
Often, though not necessarily on a percentage basis. Large balances usually come with complexity, and equity compensation, concentrated stock, business interests and estate questions are exactly what software does not handle. A flat-fee or hourly advisor delivers that without an ongoing percentage on assets, which is frequently the better structure at this size.
What happens if I transfer a large appreciated portfolio to a robo-advisor?
Most platforms sell it to buy their own model allocation, and on a large portfolio held for years that realises substantial gains in a single tax year on their timing. This is the biggest and least discussed cost at this balance, and it can dwarf several years of the fee. Ask specifically whether they hold or gradually transition existing positions.
Do robo-advisors offer anything for concentrated stock positions?
Very little. A model portfolio cannot see a large holding in your employer's stock, so the allocation it gives you can look reasonable while your combined position is far more concentrated than either of you intended. Managing a concentrated position is a planning problem, and it is one of the clearer reasons to pay for a person at this level.
Are robo-advisor minimums a problem for large accounts?
The opposite: minimums are a barrier at the small end, not the large one. What matters at this size is the balance at which better tiers unlock, since direct indexing and human access typically begin above a threshold, and whether the pricing steps down as the balance grows.
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Walnut is informational and is not an investment adviser or a tax adviser, and nothing here is investment or tax advice. Fee schedules, balance thresholds and feature availability differ by provider and change; verify current terms on the provider's own site, and speak to a qualified professional about transferring an appreciated portfolio.