Best Robo-Advisor for Low-Cost Investing

How we picked the companies to evaluate:

NerdWallet reviewed 22 robo-advisors, a mix of established firms with the greatest market share and younger companies. Some of these are NerdWallet partners; some are not.

How we chose the winner:

NerdWallet evaluated each provider across the weighted criteria below to determine the winner for low costs:

  • Management fees (50%).
  • Expense ratios (40%).
  • Account fees (annual, transfer, closing) (10%).

How we verified our data:

NerdWallet writers sent detailed questions to all reviewed companies. NerdWallet writers and editors also confirmed fees, rates, policies and other key features on each company's website.