Robo-Advisor or Target-Date Fund: What Twenty Years of Fees Add Up To
By Jay Lim · Updated October 10, 2026 · Figures checked against the official pages listed under Sources The Fee Gap Looks Tiny Until Year Twenty For most people saving for one retirement date, a low-cost target-date fund costs less than a robo-advisor . Vanguard lists an average expense ratio of 0.08% for its Target Retirement Funds, while Wealthfront and Betterment charge 0.25% before their underlying ETF costs. On $10,000 over 20 years, that difference is roughly $1,090 in a simple illustration. A robo-advisor earns its fee when you use what it adds. That means taxable accounts, tax-loss harvesting, several goals, or a small balance at a firm that waives the advisory fee. All figures below are as of October 2026. Fee schedules change, so confirm current pricing on the official site before you move money. Two Products That Solve the Same Problem Both options exist for the same person. You want a diversified portfolio of stocks and bonds, you do not want to pick funds, and you ...