Wealthfront PassivePlus is the gold-standard direct-indexing robo-advisor. It's a well-built product, the team has spent a decade on it, and at small account sizes it's genuinely cheaper than HarvestEngine. We're not going to pretend otherwise.
What we will do: lay out the actual differences side by side, and the account size where the cost curves cross. If you're $100K and under, take Wealthfront seriously. If you're $500K+, the math points the other direction. Above $1M it's not even close.
The two companies in one paragraph each
Wealthfront is a registered investment advisor (RIA) plus broker-dealer plus banking platform. You move your money to Wealthfront, they custody it, manage it, harvest it, and send you a quarterly statement. Direct-indexing (PassivePlus) is included with the 0.25% AUM fee for accounts $100K+. They make all the decisions inside an investment policy you set when you onboard.
HarvestEngine is software you bolt onto an existing brokerage account (E*TRADE, Schwab when they ship, eventually Fidelity / IBKR). You keep custody at your broker. We design the direct-index sleeve, run daily harvest scans, propose trades for your approval (or auto-execute under rules you set). We are explicitly software, not an RIA. The fee is a flat monthly subscription.
The fee crossover, plotted
This is the table that decides most prospects' choice:
| Account size | Wealthfront 0.25% | HarvestEngine Guided $49/mo | HarvestEngine Autopilot $99/mo | HarvestEngine Alpha $199/mo |
|---|---|---|---|---|
| $100,000 | $250/yr | $588/yr | $1,188/yr | $2,388/yr |
| $235,000 ★ | $588/yr | $588/yr | $1,188/yr | $2,388/yr |
| $475,000 ★ | $1,188/yr | $588/yr | $1,188/yr | $2,388/yr |
| $955,000 ★ | $2,388/yr | $588/yr | $1,188/yr | $2,388/yr |
| $2,000,000 | $5,000/yr | $588/yr | $1,188/yr | $2,388/yr |
| $5,000,000 | $12,500/yr | $588/yr | $1,188/yr | $2,388/yr |
★ = crossover account size where one HarvestEngine tier becomes cheaper than Wealthfront. Below those numbers, Wealthfront wins on price. Above them, the gap widens forever.
At $5M, you're paying Wealthfront 21× more than HarvestEngine Guided for the same harvest service. That's not a rounding-error gap; it's the kind of fee structure that compounds into a million dollars over twenty years.
Where Wealthfront wins (besides small-account pricing)
Three real strengths, in priority order:
1. Single-pane custody and automation
Move your money in, set your IPS once, never log in again. The robo experience is genuinely well-designed. If your relationship with your investments is "I want this to disappear from my attention," Wealthfront delivers that better than any product on the market. HarvestEngine requires you to approve trades (Guided/Autopilot) or trust the autonomy governor (Alpha) — there's software between you and your portfolio that you have to maintain a relationship with.
2. Banking integration
Wealthfront Cash is a high-yield checking account that integrates seamlessly with the brokerage. They built a real banking product. HarvestEngine has no banking product. If the cash side of your financial life matters, that's a meaningful Wealthfront advantage.
3. Time horizon < 5 years
If you're 60+ and starting to decumulate, the AUM model has a quiet feature: Wealthfront stops earning fees as your account shrinks. Subscription pricing keeps charging the same amount. For a genuinely shrinking portfolio, AUM is a fair model. (For a growing one, it's the opposite.)
Where HarvestEngine wins
1. Custody at your existing broker
Most high-net-worth investors already have an E*TRADE / Schwab / Fidelity account they've held for years — sometimes decades — with embedded gains, established cost basis, banking links, and trust. Moving $2M out of that account to a new firm is a real friction. HarvestEngine eliminates the move entirely. Your money stays where it is. You connect via OAuth, and we manage the harvesting on top.
This is the single biggest reason customers come to us. Not price.
2. Account-level visibility
Wealthfront shows you a quarterly summary of harvest events. HarvestEngine shows you every proposed trade before it happens, with the AI's reasoning, the wash-sale check, the replacement candidate chosen, and the tax savings estimate. If you want to understand what's happening in your portfolio, the difference is night and day.
Some investors want to be hands-off and Wealthfront is right for them. Some want to understand and that's where we win.
3. The fee shape, especially as you grow
Subscription pricing means a year of strong returns doesn't cost you more in fees. A bull market that takes your $1M to $1.5M doesn't auto-charge you an extra $1,250/year. Wealthfront's fee scales with your wins. Ours doesn't. Over 20 years on a portfolio that compounds at 7%, the cumulative fee gap can run into the high six figures.
4. Multi-broker / household coordination
HarvestEngine watches your spouse's brokerage account too (with their consent), so wash-sale rules across the household are tracked correctly. Wealthfront only sees the assets they custody. If your spouse holds VOO at Schwab and you sold VOO at Wealthfront for a loss, Wealthfront doesn't know about the wash. We do.
5. We don't take custody
This is a philosophical preference some investors share and others don't. Some people prefer the layer of separation between custody and software. If your broker has a problem, your money is at the broker; the software vendor going dark doesn't put your assets at risk. With Wealthfront, custody and management are the same firm — different risk profile, neither is wrong.
The decision framework
Five questions, in order. Answer the first three honestly and you'll know where you should be.
- What's your taxable account size today? Below $235K → Wealthfront's price advantage is real. Use them. Above $475K → HarvestEngine is structurally cheaper at every tier above Guided.
- Do you already have a relationship with a broker you trust? If yes, the cost of switching to Wealthfront is more than the harvest savings for at least the first year.
- Do you want to see and approve every trade? If yes, HarvestEngine is built for you. Wealthfront's robo experience hides the trades.
- Do you have a household / spousal coordination problem? Wash-sale rules span filers; Wealthfront sees only what they custody. HarvestEngine can connect to multiple brokers (yours, your spouse's IRA at a different broker, etc.).
- Are you 60+ and starting to decumulate? AUM becomes friendlier as the account shrinks. Subscription is punishing on the way down. Take the AUM model seriously here.
The honest "who should pick what"
| Profile | Pick | Why |
|---|---|---|
| $50K–$200K, hands-off, no existing broker | Wealthfront | Lower fee, all-in-one onboarding |
| $200K–$500K, existing E*TRADE/Schwab | HarvestEngine Guided | Skip the account move, modest savings |
| $500K–$2M, growing | HarvestEngine Autopilot | $3K-$10K/yr fee savings vs Wealthfront, automation included |
| $2M+, household coordination | HarvestEngine Alpha | Multi-account, short overlay, $10K+/yr savings |
| $5M+, decumulation phase, no growth ahead | Either, lean Wealthfront | AUM gets cheaper as account shrinks |
The actual difference
Both products do tax-loss harvesting on direct-index portfolios. Both work. Wealthfront wraps it in robo simplicity at a small-account price; HarvestEngine wraps it in software-on-your-broker visibility at a flat-fee scale-friendly price.
If you're below $235K, the price difference favors Wealthfront and none of our other advantages overcome it. Use them. We don't lose sleep over that.
If you're above that — and especially if you're north of $500K with existing broker relationships you'd rather not unwind — we've built the better product for your situation.