How Robo-Advisors Work
Who they’re best for, typical fees, tax-loss harvesting, and what the algorithm actually does with your money.
What a Robo-Advisor Actually Does
A robo-advisor is a digital platform that builds and manages a diversified portfolio for you based on your goals, time horizon, and risk tolerance. You answer a short questionnaire; the service allocates your money across low-cost ETFs (stocks, bonds, sometimes other asset classes) and rebalances automatically when allocations drift.
There is usually little or no human advisor involved in day-to-day decisions. Some platforms offer optional access to human planners for an extra fee.
Typical Fees and Account Minimums
Most mainstream robo-advisors charge an annual advisory fee around 0.25% of assets under management, on top of the underlying ETF expense ratios (often very low). Some have $0 account minimums; others require a few hundred or a few thousand dollars to start. Always read the fee schedule carefully — cash management, premium tiers, and tax features can change the effective cost.
Tax-Loss Harvesting Explained
Many robo-advisors offer automated tax-loss harvesting in taxable accounts. When an investment drops in value, the platform may sell it to realize a loss that can offset gains (or a limited amount of ordinary income), then buy a similar but not identical investment to keep your allocation roughly intact. This can improve after-tax returns over time, but it is not magic and depends on market conditions and your tax situation.
Who Robo-Advisors Are Best For
- Beginners who want a diversified portfolio without choosing individual funds
- People who prefer automation over hands-on management
- Investors who value automatic rebalancing and optional tax-loss harvesting
- Those with smaller balances who might not meet minimums for traditional advisors
Limitations to Understand
Robo-advisors are not personalized financial planners. They do not usually help with budgeting, debt strategy, insurance, estate planning, or complex tax situations. If your needs go beyond portfolio management, you may still want a human CFP® or tax professional. Also compare total costs: a simple three-fund portfolio of index ETFs at a low-cost brokerage can be cheaper if you are comfortable managing it yourself.