Wealthfront vs Betterment vs Fidelity Go vs Vanguard: Fees Compared

Wealthfront vs Betterment vs Fidelity Go vs Vanguard: Who Wins?

You're sitting at your desk, new job offer accepted, HR portal open. Someone in the finance subreddit said "just use a robo-advisor." Now you're staring at four options that all claim to be the smart choice — Wealthfront, Betterment, Fidelity Go, Vanguard Digital Advisor. They look nearly identical. They're not.

Fidelity Go wins under $25,000 — it's literally free. At $50,000 in a taxable account, Wealthfront's tax-loss harvesting generates more value than any competitor can match at that price point. Above $100,000 in a retirement account, Vanguard Digital Advisor's all-in cost of roughly 0.20% quietly beats everyone. Betterment sits behind Wealthfront at every balance tier — competitive, but never the best option by the numbers.

Here's the math that gets left out of most comparisons.

Quick Comparison: What You're Actually Paying

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Fees verified as of May 2026; structures subject to change.

The "advisory fee" column is what most comparisons show. The all-in cost column is what you actually pay. Betterment and Wealthfront both use external ETFs (Vanguard, iShares) that carry their own expense ratios — roughly 0.07% on average. Fidelity Go uses proprietary Fidelity Flex funds with 0% expense ratios. Vanguard Digital Advisor uses Vanguard's own rock-bottom ETFs, already priced into their all-in estimate.

This matters. A lot.

Fidelity Go: The Free Tier Everyone Ignores

Under $25,000, Fidelity Go charges you nothing. Zero advisory fee. Zero fund expense ratios. You're genuinely paying $0 per year in fees.

At $10,000 invested, the gap is stark:

• Fidelity Go: $0/yr
• Betterment: $25/yr
• Wealthfront: $25/yr
• Vanguard Digital: ~$20/yr

That $25 difference sounds negligible. Over five years with a 7% return, that drag costs roughly $175 in compounded opportunity cost — not devastating, but completely avoidable. Why pay it when you don't have to?

The catch activates at $25,000. Fidelity Go switches to a 0.35% annual advisory fee — the highest rate among these four options. You go from best-in-class to worst-in-class in a single day, simply by crossing a balance threshold. That's not a flaw you want to discover when you've already been using the account for two years.

The other limitation: no tax-loss harvesting. For a Roth or traditional IRA that doesn't matter (TLH only helps in taxable accounts). But if you're in a taxable brokerage and your balance is approaching $25K, start planning your exit before the fee switches on.

Fidelity Go lives inside the Fidelity ecosystem — one login, one dashboard for your 401(k), HSA, and brokerage. If you already use Fidelity for workplace accounts, the consolidation has real practical value that offsets some of what you lose at the $25K threshold.

Betterment: The Solid Default That Never Leads

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Betterment invented the consumer robo-advisor category and it's still a well-run product. 0.25% annual fee, no minimum, automatic rebalancing, tax-loss harvesting, goal buckets, and an interface that first-time investors actually understand.

The honest critique: Betterment never finishes first. It matches Wealthfront on fee rate and tax-loss harvesting but lacks Wealthfront's direct indexing above $100K and its financial planning depth. It's more approachable for beginners than Wealthfront — but "easier to use" isn't a financial advantage.

Here's a piece of the math most people skip: that 0.25% advisory fee combines with ~0.07% in fund ERs for a true all-in cost of about 0.32%. On a $50,000 portfolio, you're paying roughly $160/yr. The tax-loss harvesting benefit — research estimates 0.5%–1.5% annually in taxable accounts depending on market volatility — easily offsets that cost. At the 24% tax bracket and a conservative 0.6% TLH benefit, you're getting approximately $300/yr in avoided capital gains taxes, netting $140/yr in Betterment's favor even after fees.

But Wealthfront delivers the same math at the same price. Betterment's best argument is its interface — and that only holds if Wealthfront's interface frustrates you.

Wealthfront: The Winner at $50K and Above

Wealthfront's advisory fee (0.25%) matches Betterment. Its all-in cost (~0.32%) matches Betterment. The tie-breaker is what happens above $100,000.

Direct indexing — Wealthfront's program for accounts over $100K in taxable accounts — replaces a single S&P 500 ETF with individual stock positions inside the index. This lets Wealthfront harvest losses at the stock level, not just the fund level, dramatically increasing TLH opportunities during volatile markets. Independent research and Wealthfront's own data suggest direct indexing can add 1%–2% annually in tax alpha for high-income investors, well above what ETF-level harvesting provides.

That service typically costs $500K+ minimums at traditional wealth management firms. Wealthfront delivers it at $100K.

The Path financial planning tool deserves mention. It's not a gimmick — it integrates your investment account, external bank balances, real estate value estimates, and Social Security projections to model retirement scenarios with actual numbers. Betterment's planning tools are functional; Wealthfront's are meaningfully better.

The $500 minimum is the only real friction point for early-career investors. If you have $500, there's no reason not to start.

Vanguard Digital Advisor: The Retirement Account Winner

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This is the one most people underestimate.

Vanguard Digital Advisor runs approximately 0.20% per year all-in — around 0.15% advisory fee plus ~0.05% in underlying Vanguard ETF costs. That's notably cheaper than Betterment and Wealthfront (~0.32% all-in) and cheaper than Fidelity Go above $25K (0.35%).

No tax-loss harvesting. No direct indexing. $100 minimum.

Here's where the math flips in Vanguard's favor: inside a retirement account, TLH provides zero benefit. Roth IRAs and traditional IRAs don't generate taxable events to harvest — gains grow tax-deferred or tax-free regardless of when you realize them. The only variable that matters in a retirement account is annual cost. Vanguard wins that race, and it's not close.

At $100,000 in an IRA, Vanguard Digital Advisor charges approximately $200/yr all-in. Betterment and Wealthfront charge approximately $320/yr. That's $120/yr in unnecessary fees — money you're giving up with nothing received in return.

The 20-Year Dollar Calculation

Starting balance $50,000, 7% gross annual return:

*TLH benefit estimated conservatively at 0.5%/yr in taxable account at 24% bracket. Applies to taxable accounts only.

That last row changes the entire conversation. Wealthfront's tax-loss harvesting doesn't just offset its fee — it pushes effective returns above a zero-cost benchmark because the tax savings compound over time. Over 20 years on $50,000, that's roughly $18,000 more than Vanguard Digital Advisor, and $19,000 more than Fidelity Go — both of which charge less but don't harvest.

This math only holds in taxable accounts. In an IRA, the TLH column drops to zero, and Vanguard's lower all-in cost of 0.20% beats Betterment and Wealthfront's 0.32% by $120/yr — which compounds to over $6,000 more in your pocket after 20 years.

Most people miss this split entirely because they pick one platform for everything.

Who Should Choose What

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Fidelity Go: Your balance is under $25,000, you want to invest without any fees, and you already use (or plan to use) Fidelity for a 401(k) or other accounts. Best first account for anyone just starting — no minimum, zero fees, clean interface. Plan to switch or supplement before hitting $25K.

Wealthfront: You have $500+ and you're opening a taxable brokerage account. The TLH benefit at the 22% bracket or above outpaces the fee from day one, and direct indexing at $100K is worth staying for. Pick Wealthfront over Betterment unless you have a strong reason not to — it wins on every measurable financial criterion.

Vanguard Digital Advisor: You're primarily investing in a Roth or traditional IRA. No TLH benefit in a retirement account means the only number that matters is cost. At ~0.20% all-in, Vanguard is $120/yr cheaper than Betterment and Wealthfront at $100K. Multiply that over 20 years and you're talking real money for doing nothing different.

Betterment: Your balance is under $500 (Wealthfront's minimum is a real barrier), or you strongly prefer Betterment's interface. It's a legitimate product. Just know it's a runner-up that never pulls ahead.

The Decision Framework

• Under $25,000, any account type → Fidelity Go. It's free.
• $25K–$100K, taxable brokerage → Wealthfront. TLH covers the fee and then some.
• $25K–$100K, IRA → Vanguard Digital Advisor. TLH doesn't apply; lowest cost wins.
• Over $100K, taxable → Wealthfront. Direct indexing is a real differentiator at this level.
• Over $100K, IRA → Vanguard Digital Advisor. Still cheapest, no reason to pay more.

One thing most comparisons skip: these platforms aren't mutually exclusive. Keep Fidelity Go for your IRA while your balance is under $25K, switch to Vanguard Digital Advisor once it grows, and open Wealthfront separately for any taxable brokerage investing. The "pick one" framing is arbitrary.

Final Verdict

Fidelity Go is the best deal for anyone under $25,000 — genuinely free in a way none of its competitors match. For balances above $25,000 in a taxable account, Wealthfront's tax-loss harvesting generates more dollar value than the fee costs, and its direct indexing at $100K is the strongest differentiator in this entire category. For retirement accounts, Vanguard Digital Advisor's ~0.20% all-in cost quietly outperforms everyone else because TLH is irrelevant and cost is the only lever left.

Betterment is good. It's never the best.

The robo-advisor decision isn't permanent — you can move assets, consolidate accounts, and optimize as your balance grows. But picking the right platform now means not quietly funding someone else's business model for years before you notice the drag.