A robo-advisor can take much of the day-to-day work out of investing. Instead of choosing individual securities, you answer questions about your goals, risk tolerance, and time horizon, and the platform builds and manages a diversified portfolio for you.

The convenience can be useful, but account minimums, flat versus percentage-based fees, rebalancing thresholds, tax features, and access to human advisors can significantly affect the experience.

Understand the Fee Structure

Robo-advisors commonly charge either a flat subscription or a percentage of the assets they manage.

A flat monthly fee can have a larger impact on a small portfolio. For example, paying $4 per month means spending $48 annually regardless of whether the account contains $500 or $10,000.

Percentage-based fees behave differently. The dollar cost increases as your portfolio grows, but the fee remains proportional to the amount invested.

Don't stop at the advisory fee. ETFs and other funds inside the portfolio typically have their own expense ratios, creating an additional investment cost.

Check the Minimums and Thresholds

The minimum amount required to open an account isn't always the only threshold that matters.

A platform might allow you to start with a very small investment while requiring a higher balance before certain features become available. Automatic rebalancing, tax-management tools, or access to financial professionals may have separate requirements.

Before depositing a small amount simply to test a service, check which features will actually function at that balance.

Know How Your Portfolio Is Selected

Most robo-advisors begin with a questionnaire.

You'll typically provide information about your financial goals, investment timeline, and comfort with market fluctuations. The platform then recommends an asset allocation based on those answers.

Portfolios commonly use ETFs providing exposure to areas such as:

  • U.S. stocks
  • International stocks
  • Emerging markets
  • Government and corporate bonds
  • International bonds

Some platforms also offer portfolios that apply sustainability or other investment screens.

Automated recommendations can simplify portfolio construction, but they don't guarantee that an allocation will meet your goals or prevent losses.

Understand Automatic Rebalancing

Your portfolio's allocation naturally changes as investments rise and fall.

Suppose your target is 70% stocks and 30% bonds. If stocks outperform, they could eventually represent a larger percentage of the portfolio than intended.

Automatic rebalancing attempts to restore the original allocation by buying or selling investments.

Some platforms also use new deposits and dividend payments when rebalancing, potentially reducing the amount of selling required.

Check whether rebalancing begins immediately or only after your account reaches a specified balance.

Consider Automatic Dividend Reinvestment

Automatic dividend reinvestment can help keep distributions invested instead of allowing them to accumulate as cash.

When an ETF pays a dividend, the platform may automatically use the distribution to purchase additional shares. Fractional-share capabilities can make this easier because the dividend doesn't have to be large enough to purchase an entire share.

Dividend reinvestment doesn't eliminate potential tax consequences in a taxable account. Reinvested dividends may still be taxable depending on the circumstances.

Look Closely at Tax-Loss Harvesting

Tax-loss harvesting is another feature frequently associated with automated investing.

The strategy generally involves selling an investment that has declined and potentially using the realized loss to offset eligible capital gains, subject to tax rules. A replacement investment may then be purchased to maintain similar market exposure.

The strategy generally applies to taxable investment accounts rather than tax-advantaged retirement accounts.

Tax-loss harvesting doesn't guarantee tax savings, and its usefulness varies according to your investments and individual tax circumstances.

Decide Whether You Need Human Advice

Some robo-advisors are almost entirely automated, while others provide access to financial professionals at higher service levels.

Human guidance can become valuable when you're dealing with questions involving retirement, taxes, estate considerations, major purchases, or significant financial changes.

However, access to an advisor may require a substantially higher account balance and advisory fee.

If ongoing financial planning is important to you, check whether you'll have unlimited access, scheduled consultations, or only occasional assistance.

Review the Available Account Types

Automated investment services can support more than standard taxable brokerage accounts.

Depending on the provider, options may include traditional and Roth IRAs, SEP IRAs, workplace retirement accounts, rollovers, and education-related accounts.

Availability alone doesn't tell the whole story. Certain accounts may be managed through another provider or offer fewer choices than you'd receive elsewhere.

Verify how the specific account you need is managed before transferring money.

Know What You Can't Invest In

Robo-advisors generally prioritize simplicity rather than unlimited investment selection.

Many construct portfolios almost entirely from ETFs and don't allow clients to select individual stocks or bonds within managed accounts.

That can be an advantage if you want a hands-off portfolio. It's a limitation if researching and choosing individual securities is an important part of your strategy.

Consider whether you actually want investment automation or a self-directed brokerage account before choosing between them.

Understand Brokerage Protection

Investor protection can also be misunderstood.

Applicable brokerage protection may cover certain customer assets if a brokerage fails and assets are missing, subject to specific rules and limits. It doesn't protect your portfolio against ordinary market losses.

Stocks, bonds, ETFs, and other securities can decline regardless of whether they're selected by you, an algorithm, or a financial professional.

Decide How Much Automation You Really Want

A robo-advisor can make sense when you want diversified investing without repeatedly selecting investments, calculating allocations, or manually rebalancing your portfolio.

Before opening an account, compare the total annual cost, investment minimums, feature thresholds, underlying fund expenses, account types, portfolio flexibility, tax tools, and access to financial professionals.

The key question isn't simply whether automated investing is convenient. It's whether the platform's particular combination of automation, cost, and investment control fits the way you want to manage your money.