TECHNOLOGY / FINTECH & AI

How robo-advisors work: 21 questions to ask before you sign up

Learn how robo-advisors turn a questionnaire into a portfolio, then check goals, holdings, fees, custody, data, regulation, and support.

zcompound editorial team11 min read11 linked sources
In this guide

A robo-advisor can make investing feel simple: answer a questionnaire, fund an account, and let software handle the portfolio. But simplicity at the screen does not tell you whether the service fits the goal.

The useful question is not simply, “Is a robo-advisor good?” It is: What does this service know about me, what will it do with my money, what will I pay, who holds the assets, what happens to my data, who oversees the firms, and who helps when the simple path stops being simple?

This guide gives you 21 questions to find out.

The short answer

A robo-advisor is an automated digital investment advisory service. In a typical flow, it:

  1. asks about your goal, timeline, finances, and comfort with risk;
  2. maps those answers to an investment approach;
  3. recommends or manages a portfolio, often using funds;
  4. places trades through a brokerage or custodian; and
  5. monitors the account and may rebalance it over time.

That is a service model, not a promise of better returns. The result depends on the information the system collects, the choices built into its method, the investments available, the costs, and whether the service fits your situation. In the United States, the SEC’s robo-adviser bulletin recommends examining those details before investing.

What happens after you answer the questionnaire?

Think of the questionnaire as an intake form for a decision system, not a full financial plan.

Your answers may include a target—such as money for a home or retirement—a time horizon, income, other assets, and tolerance for market declines. The service then places you into an investment strategy or one of a limited set of model portfolios. Some services allow customization; others offer a narrower menu.

Once funded, the system may buy and sell investments to keep the account near its target mix. That process is called rebalancing. It may also offer tax-related features. Both can trigger trades, and trades can have costs or tax effects depending on the account, investments, and country.

Automation makes the process repeatable. It does not make the input complete. If the questionnaire never asks about money you will need soon, expensive debt, another investment account, a concentrated employer-stock position, or a tax constraint, the recommendation may not reflect it. You also may need to update the service when your circumstances change.

Check 1: Does it understand your goal?

“Grow my money” is not a complete goal. The same portfolio may be unsuitable for money needed next year and money intended for several decades from now.

Ask:

  1. What exact goal and deadline is this portfolio designed for?
  2. Which parts of my financial situation does the questionnaire use—and which does it ignore? Look for debts, cash reserves, income stability, other accounts, and near-term withdrawals.
  3. What would cause the recommendation to change? Find out whether you must report changes and how the system treats a shorter timeline or lower ability to absorb a loss.

Do not answer risk questions as if they were a personality quiz. Your willingness to see a balance fall and your financial ability to wait for a recovery are different. Read how the provider defines each answer and check whether the proposed portfolio matches the goal you actually entered.

Check 2: What will you actually own?

A friendly label such as “balanced” or “growth” is not a list of holdings. Ask to see the portfolio beneath the label.

  1. Which funds, securities, and cash positions can the service use, and why were these selected?
  2. How concentrated or overlapping are the underlying holdings? Several funds can own many of the same companies or respond to the same risk.
  3. How and when does the service trade? Ask what triggers rebalancing, whether you can customize or restrict holdings, and what happens if you transfer out.

Check the objective, major holdings, risks, and expense information for every fund. Our diversification guide explains why counting funds is not the same as spreading risk.

If the marketing emphasizes “AI,” ask what that term means in practice. Does it change the allocation, analyze data, answer questions, or merely describe the interface? A confident output is not proof of a sound portfolio. Use our guide to question AI investment claims as a separate evidence check.

Check 3: What is the total cost?

The headline advisory fee is only one possible layer. Costs may include an asset-based advisory charge, a subscription, expenses inside funds, transaction costs, account charges, or transfer and closing fees. The exact mix varies by service.

  1. What would I pay in currency over one year at my expected balance—not only as a percentage?
  2. Which costs sit outside the advertised advisory fee? Include underlying fund expenses, brokerage or trading costs, cash-related terms, premium features, and account or transfer charges where applicable.
  3. How is the provider paid, and could it earn more from some holdings, cash choices, affiliates, or referrals than from others?

The SEC’s 2025 investment-fee bulletin separates transaction fees from ongoing fees and points investors to Form CRS, Form ADV, fee schedules, prospectuses, statements, and trade confirmations. Its subscription-fee bulletin also explains why a small flat monthly charge can represent a large percentage of a small account.

Ask the provider for an all-in estimate based on your balance and likely activity, then verify it against the documents. Our investment-fee guide and hypothetical fee comparison can help you understand the mechanics; neither contains current product pricing.

Check 4: Who holds your money and investments?

The company recommending a portfolio and the firm holding the account may be different. A robo-advisor may work with an affiliated or independent brokerage or custodian that executes trades and maintains the assets.

  1. What is the legal name of the custodian or brokerage shown on the account agreement and statements?
  2. Will I receive statements directly from that firm, and can I independently log in or contact it? Compare those records with the robo-advisor’s display.
  3. What protection applies if the brokerage fails, and what does that protection exclude? Check the exact legal entity, account type, assets, limits, and country.

For U.S. brokerage accounts, verify whether the custodian is a SIPC member. As of 2026-09-04, SIPC states that its protection for missing cash and securities at a failed member brokerage is limited to $500,000 per customer, including a $250,000 cash limit. SIPC does not protect market losses, bad advice, promised performance, or every type of asset. It is not the same as bank-deposit insurance.

The SEC’s custody bulletin explains the U.S. adviser-custody concept and why investors should monitor statements. Rules and protection schemes elsewhere are different. The Brokers & Platforms learning path is the natural next step for understanding the firms behind an investing interface.

Check 5: What happens to your data?

To make a recommendation, a robo-advisor may collect sensitive identity and financial information. Optional account connections can introduce another company—often a data aggregator—and access may continue after the initial connection.

  1. What data is collected, which accounts can be accessed, and is access one-time or ongoing?
  2. Which affiliates, custodians, aggregators, analytics providers, or other third parties receive the data, and for what purpose?
  3. How can I revoke access, close the account, export information, and request deletion—and what must the firm retain?

Read the privacy notice and account-connection permissions, not only the app-store description. The U.S. Consumer Financial Protection Bureau’s financial-data sharing guide advises checking what is shared, who receives it, how often it is accessed, how long it is stored, and how to stop access. It also notes that deleting an app does not necessarily cancel data sharing.

In the United States, the SEC’s 2024 Regulation S-P amendments strengthened privacy and safeguarding obligations for covered institutions, including incident-response programs and certain customer notifications. A rule does not make a breach impossible. Ask about login protections, alerts, contact channels, and what you should do after suspected unauthorized access.

Check 6: Who regulates the firms involved?

A polished app is not a regulatory status. Identify each legal entity involved: the adviser, the brokerage or custodian, and any other firm handling a function that matters to you.

  1. What are the legal names of the adviser and custodian, and where is each registered or licensed?
  2. Which disclosure documents describe services, fees, conflicts, disciplinary events, and the standard of conduct?
  3. Where can I verify this information on the regulator’s own website? Follow your own route to the regulator rather than a link in an unsolicited message.

For U.S. advisers, use the SEC’s free Investment Adviser Public Disclosure database to check registration status and current filings. Form ADV includes information about the adviser’s business, fees, conflicts, disciplinary events, and relationship summary. If a broker is involved, follow the official link to the relevant brokerage record as well.

Registration is a place to start your checks, not an answer to whether the portfolio fits your goal. If a service claims AI can remove risk or guarantee returns, treat that as a warning sign; the SEC, NASAA, and FINRA discuss such claims in their 2024 AI and investment fraud alert.

Outside the United States, find the official securities or financial regulator for your jurisdiction and check the exact entity and permissions there. Do not assume U.S. registration, SIPC protection, disclosure forms, tax features, or complaint routes apply to you.

Check 7: What human help can you reach?

“Human support” can mean very different things: technical help, account administration, general education, or advice from an investment professional. Access may depend on your account size or service tier.

  1. Can I reach a qualified investment professional, or only technical customer support?
  2. When is help available, through which channel, at what cost, and with what minimum balance?
  3. Who can handle a changed goal, unusual tax issue, transfer problem, market downturn, suspected fraud, or account lockout?

Test a support route before transferring money. Ask a specific question and observe whether the response explains the service or simply points back to marketing copy. Confirm how complaints are escalated and how long urgent account issues usually take; do not assume a chatbot can resolve them.

When a simple questionnaire may not be enough

Automation can be useful for a defined goal and a situation the service is designed to handle. It can be less informative when important parts of your life sit outside its questions.

Pause if the system does not account for something material, such as money needed soon, high-cost debt, irregular income, a concentrated holding, several account types, a major tax decision, an inheritance, estate-planning needs, or assets in more than one country. That does not automatically make the service wrong. It means you should find out whether the missing fact changes the recommendation and whether qualified human advice is appropriate.

Tax features deserve special care. Rebalancing and tax-loss harvesting can trigger sales, and the result depends on the account and your wider tax position. A feature label is not a personal tax conclusion.

A 60-second decision rule

Before you sign up, see whether you can complete this sentence:

“This service uses these facts about me to place me in this portfolio; I expect to pay these direct and indirect costs; my assets are held by this legal entity under these protections and limits; my data is used and shared in these ways; the firms are overseen by these regulators; and I can reach this kind of human help when needed.”

If any blank is still vague, you have found the next question—not a reason to guess.

Sources

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