Most major robo-advisors (Betterment, Wealthfront, Schwab Intelligent Portfolios, Fidelity Go, and Vanguard Digital Advisor) are Registered Investment Advisers with the SEC. As RIAs, they are bound by the same federal fiduciary duty under the Investment Advisers Act of 1940 that applies to a fee-only human advisor. The duty is real, and the SEC enforces it the same way. The difference is scope. A robo-advisor's fiduciary duty applies to a narrow product, usually a tax-aware ETF portfolio, rebalanced on a schedule, with optional tax-loss harvesting. A human fiduciary's duty applies to your whole picture: tax planning, estate, insurance, retirement income, business interests, and family situations the algorithm does not see. Both can be fiduciaries; one solves a smaller problem.
The price comparison
Robo fees are roughly 0.25% per year of assets, sometimes lower. A typical fee-only human fiduciary charges 0.50% to 1.00% on managed assets, or a flat retainer in the $4,000 to $12,000 range per year for ongoing planning. The human fee is higher because the scope is wider, and because a human can answer questions an algorithm cannot.
Where the robo wins
- Small accounts. Below $100,000 in investable assets, robo-advisors are usually the right tool. The fee is low, the portfolio is competent, and the discipline is automated.
- Tax-loss harvesting at scale. Robos run loss harvesting daily across hundreds of positions. Most humans don't.
- Behavior. A robo never panic-sells in March 2020. The algorithm rebalances on schedule. That alone beats a lot of human investors.
Where the human wins
- Tax-sensitive transitions. Selling a business, exercising ISOs, Roth conversion ladders, charitable bunching: these are decisions an algorithm does not engage with.
- Retirement income planning. Sequence-of-returns risk, Social Security claiming strategy, RMD planning, and Medicare/IRMAA bracket management need a human.
- Coordination across professionals. A fiduciary advisor coordinates with your CPA and estate attorney. The robo does not.
- One-time complexity. Inheritance, divorce, equity comp packages, concentrated stock: outside the algorithm's scope.
The hybrid option
Most major robos now offer a hybrid tier (Vanguard Personal Advisor, Schwab Intelligent Portfolios Premium, Betterment Premium) that combines algorithmic management with access to a CFP. Fees run 0.30% to 0.50%. These are fee-only fiduciary services with a digital chassis. They are a reasonable middle path for accounts in the $100,000 to $500,000 range with moderate complexity.
How to verify any robo's fiduciary status
Same as any other RIA. Look up the firm on adviserinfo.sec.gov. Read Part 2A Item 5 for the fee structure. Confirm fee-only language and absence of broker-dealer affiliation. Most major robos pass cleanly because their structure was designed around the RIA model from day one.
