Robo-advisors explained
The low-cost, algorithm-driven alternative to traditional advisors. When they're worth it, when they aren't.
A robo-advisor is an online platform that builds and manages a diversified portfolio for you based on a short questionnaire about your goals and risk tolerance. They automatically handle rebalancing, dividend reinvestment, and often tax-loss harvesting. Fees are typically 0.25–0.40% of assets — much cheaper than a human advisor's 1%+ but more expensive than doing it yourself with index funds.
What they're good at
- Handling the 'I know I should invest but I freeze up picking funds' problem. The robo picks for you.
- Automatic rebalancing without having to think about it.
- Tax-loss harvesting in taxable accounts (a real value-add for higher earners).
- Enforcing consistent contributions and discouraging market-timing behavior.
- Access to professional asset allocation with very low minimums ($500 or less at most providers).
What they're not good at
- Complex planning (tax strategy, estate planning, major life transitions).
- Holding your hand during a 30% market drop. The app doesn't answer when you panic.
- Handling unusual situations like concentrated stock positions or self-employment income.
- Cost-efficiency at the low end: a $5k portfolio with a 0.25% fee is $12.50/year — compare to a three-fund portfolio in a free brokerage.
What signing up actually looks like
The onboarding is deliberately friction-free, and worth demystifying. You answer roughly ten questions — age, income, what the money is for, when you'll need it, and how you'd react to a 20% drop. The algorithm maps your answers to a model portfolio: typically six to twelve low-cost ETFs spanning US stocks, international stocks, and bonds, at a mix like 90/10 for a young retirement saver or 60/40 for a shorter horizon. You link a bank account, make an initial deposit, and set a recurring monthly transfer. From that point the platform buys fractional shares of every ETF with each deposit, reinvests dividends, rebalances when the mix drifts, and — in taxable accounts — harvests losses automatically. Total setup time is about twenty minutes, and the honest summary is that the product isn't investment brilliance; it's the removal of every decision point where a human procrastinates.
The major platforms, roughly
| Platform | Advisory fee | Minimum | Notable |
|---|---|---|---|
| Betterment | 0.25% (or $4/mo at low balances) | $0 | Add-on human CFP access at higher tier |
| Wealthfront | 0.25% | $500 | Direct indexing at larger balances |
| Vanguard Digital Advisor | ~0.15–0.20% all-in | $100 | Cheapest of the majors |
| Fidelity Go | $0 under $25k, then 0.35% | $0 | Free tier for small accounts |
| Schwab Intelligent Portfolios | $0 advisory fee | $5,000 | Holds a cash allocation that earns Schwab money |
The fee at three balances
At 0.25%, a $10,000 account pays $25 a year — trivially cheap for what it automates. A $100,000 account pays $250 — still defensible, roughly the cost of one hour of human advice for a year of management. A $1,000,000 account pays $2,500 every year for rebalancing you could replicate with one target-date fund or an afternoon per year of DIY — and at that balance, a flat-fee human planner who also handles tax and estate questions starts costing comparable money. The pattern generalizes: robos are at their best in the accumulation years when balances are five or six figures and the alternative is paralysis, and at their weakest at exactly the wealth level their marketing celebrates reaching. Watch for the 'free' variants too — a $0 advisory fee funded by a mandatory 8–10% cash allocation earning below-market interest is a fee wearing a costume.
Robo, human, or DIY: the honest sort
The decision compresses to two questions. First: is your situation simple enough that an algorithm's questionnaire captures it? Salaried income, standard accounts, long horizon — yes. Equity comp, business ownership, imminent retirement — no; those need a human at least once. Second: will you actually execute a DIY plan? A three-fund portfolio at a free brokerage beats the robo by 0.25% a year — but only if the rebalancing actually happens and the contributions actually flow during scary markets. People who've proven they'll do it should keep the 0.25%. People with two years of uninvested cash sitting in savings have already answered the question, and the robo's fee is the cheapest behavioral therapy available.
Two details worth checking before you fund
First, account types: the questionnaire will happily open a taxable account by default, but if you haven't maxed an IRA, open the robo IRA instead — the tax shelter is worth far more than any feature. Most platforms support traditional, Roth, and rollover IRAs alongside taxable and joint accounts, and some now bundle high-yield cash accounts that make decent emergency fund homes. Second, the exit: leaving a robo means transferring out a dozen ETF positions (fine) or, at platforms running proprietary funds or direct indexing, positions that other brokers can't hold cleanly (less fine). Read the transfer-out terms for ten minutes before depositing — the platforms make joining effortless precisely because leaving is where the friction lives. Neither detail should stop you; both are cheaper to know on day one than on day one thousand.
One last behavioral note: the platforms all send performance notifications, and the correct setting for long-term money is off. The portfolio was built to be ignored through drawdowns; an app that pings you every red day is working against its own design. Configure the notifications once, on day one, the same way you configured the deposits — deliberately, and in favor of the version of you who stays invested.
The bottom line
Robo-advisors solved the middle of the market: too simple for a $5,000 human plan, too human to reliably DIY. For a quarter of a percent they turn intentions into automation, which for most procrastinators is worth multiples of the fee. Graduate to a flat-fee human when complexity arrives; graduate to DIY when discipline does; and if neither ever happens, the robo remains a perfectly good place to get rich slowly.
Check your understanding
1 of 4Not quite — try again.
Get smarter about money every week
One email, no spam — practical guides and Worth updates. Unsubscribe anytime.
Put this into practice
Worth tracks your accounts, budgets, and goals — so the concepts in this article aren't just theory.
Start free trial