Robo-Advisors vs. DIY Investing: Which Is Right for You?
In this guide
- What is a robo-advisor?
- What is DIY investing?
- Side-by-side comparison
- The fee math: how much does a robo-advisor cost over time?
- Who should use a robo-advisor?
- Who should invest on their own?
- What about tax-loss harvesting?
- Hybrid options
- The biggest factor isn’t fees
- How to get started either way
- Three investors, three good choices
- Frequently asked questions
- Our take
You’ve decided to invest. Now comes the next question: should you let a robo-advisor manage your portfolio automatically, or build and manage it yourself with low-cost index funds?
Both approaches can work well, and both are far better than not investing at all. The right choice depends on how much you want to pay, how much control you want and how likely you are to stick to a plan when markets get rough.
What is a robo-advisor?
A robo-advisor is an online service that builds and manages an investment portfolio for you using algorithms. You answer questions about your goals, timeline and risk tolerance, and it:
- Recommends a mix of stocks and bonds
- Invests your money, usually in low-cost index ETFs
- Rebalances your portfolio automatically
- Reinvests dividends
- Often offers tax-loss harvesting in taxable accounts
Most charge an annual advisory fee, commonly around 0.25% to 0.50% of your balance, on top of the funds’ own expense ratios. Some offer free tiers or access to human advisors for a higher fee.
What is DIY investing?
With DIY investing, you open an account at a brokerage and choose your own investments. Many DIY investors use:
- A single target-date fund, which handles the stock and bond mix automatically
- A three-fund portfolio: US stocks, international stocks and bonds
- A few broad index funds
You decide when to rebalance and make changes yourself. There’s no advisory fee, only the funds’ expense ratios. Our guide to index funds for beginners explains how to choose your first fund.
Side-by-side comparison
| Factor | Robo-advisor | DIY investing |
|---|---|---|
| Annual cost | Advisory fee (often 0.25–0.50%) + fund fees | Fund fees only (can be under 0.10%) |
| Effort | Very low | Low to moderate |
| Control | Limited; you choose a risk level | Full control |
| Rebalancing | Automatic | Manual (or automatic with a target-date fund) |
| Tax-loss harvesting | Often included in taxable accounts | Manual, if you do it at all |
| Behavioral guardrails | Built-in automation discourages tinkering | Depends on your discipline |
| Learning required | Minimal | Some basic investing knowledge |
| Account minimum | Often $0–$500 | Often $0 |
The fee math: how much does a robo-advisor cost over time?
Fees look small as percentages, but they compound. Here’s a hypothetical example of investing $500 a month for 30 years with a 7% average annual return before fees:
| Total annual cost | Ending balance (hypothetical) | Difference vs. 0% fee |
|---|---|---|
| 0% (theoretical) | About $610,000 | — |
| 0.25% (e.g., robo-advisor fee, before fund costs) | About $581,000 | About $29,000 less |
| 1.00% (e.g., traditional advisor) | About $502,000 | About $108,000 less |
Illustration only, using constant returns compounded monthly. Actual returns vary and are not guaranteed.
A 0.25% advisory fee costs about $29,000 over 30 years in this example. That’s real money, but it’s much less than a traditional 1% advisory fee, and it may be worth it if automation keeps you invested and on track.
Who should use a robo-advisor?
A robo-advisor may be the better choice if you:
- Want a hands-off experience and don’t want to think about rebalancing
- Worry you’ll panic-sell during a downturn and want automation to keep you on course
- Have a taxable account where automatic tax-loss harvesting could offset part of the fee
- Are just getting started and want guidance on asset allocation
- Value goal-tracking tools, such as projections for a home purchase or retirement
Who should invest on their own?
DIY investing may be better if you:
- Want the lowest possible costs
- Are comfortable with basic investing concepts
- Can stick to a plan and resist reacting to market news
- Want control over specific funds or asset allocation
- Invest mainly through retirement accounts, where tax-loss harvesting doesn’t apply
The easiest DIY option: a single low-cost target-date index fund. It gives you automatic diversification and rebalancing, similar to a robo-advisor, without the advisory fee. For many people, it’s the best of both worlds.
What about tax-loss harvesting?
Tax-loss harvesting means selling investments at a loss to offset taxable gains (and up to $3,000 of ordinary income per year), while buying similar investments to stay invested. Robo-advisors can do this automatically in taxable accounts.
The benefit varies depending on market conditions, your tax bracket and how long you hold investments. It doesn’t apply to IRAs, 401(k)s or HSAs, which are already tax-advantaged. If most of your investing happens in retirement accounts, this feature matters less.
Hybrid options
You don’t have to choose just one:
- Use a robo-advisor for a taxable account and DIY index funds in your IRA and 401(k).
- Start with a robo-advisor while you learn, then switch to DIY once you’re comfortable. Note that selling investments in a taxable account to move them can create a tax bill; transferring the investments “in kind” may avoid this.
- Hybrid robo-advisors offer automated portfolios plus access to human financial planners for a higher fee.
- Fee-only financial planners can create a plan for a flat fee, which you then implement yourself.
The biggest factor isn’t fees
Research by firms such as Morningstar has repeatedly found that many investors earn less than the funds they own, because they buy after markets rise and sell after they fall. The best approach is the one you’ll stick with through good and bad markets. If a robo-advisor keeps you invested, its fee may be well worth it. If you’re disciplined, DIY saves money.
How to get started either way
- Capture your employer 401(k) match first. See how a 401(k) works.
- Choose your account type, such as a Roth IRA or taxable brokerage account.
- Pick your approach: robo-advisor, target-date fund or three-fund portfolio.
- Automate monthly contributions.
- Check in once or twice a year, not every day.
Three investors, three good choices
| Taylor, 26 | Jordan, 33 | Casey, 38 | |
|---|---|---|---|
| Situation | First job, investing $300/month, no interest in managing it | Comfortable with spreadsheets, investing $1,200/month | Large taxable account, busy career, nervous during downturns |
| Accounts | 401(k) and Roth IRA | 401(k), Roth IRA and taxable brokerage | 401(k) and $150,000 taxable account |
| Best fit | Target-date index fund in both accounts | DIY three-fund portfolio | Robo-advisor for the taxable account |
| Why | Lowest effort and lowest cost; automatic rebalancing | Lowest cost with full control; enjoys the process | Automatic tax-loss harvesting and rebalancing may offset part of the fee; automation reduces the urge to sell |
Taylor doesn’t need a robo-advisor: a single target-date fund already handles diversification and rebalancing for a very low fee.
Jordan saves the advisory fee by managing three index funds and rebalancing once a year. On a $200,000 portfolio, a 0.25% advisory fee would be $500 a year.
Casey benefits most from a robo-advisor. With a large taxable account, tax-loss harvesting has more value, and a history of anxiety during downturns makes automation especially useful.
How to compare robo-advisors
- All-in cost: advisory fee plus the expense ratios of the funds used.
- Account types: IRAs, joint accounts, trusts.
- Tax features: tax-loss harvesting and asset location.
- Human support: whether you can talk to a planner and at what cost.
- Cash allocation: some portfolios hold a portion in cash, which can lower returns.
- Transfer options: whether you can move investments in kind if you leave.
Frequently asked questions
Are robo-advisors safe?
Robo-advisors are typically registered investment advisers, and client assets are usually held at SIPC-member brokerages, which protects you if the firm fails (not against market losses). Check a firm’s registration on the SEC’s Investment Adviser Public Disclosure website.
Do robo-advisors beat the market?
They’re not designed to. Most aim to match the market through diversified index funds, minus fees.
Can I lose money with a robo-advisor?
Yes. Your portfolio rises and falls with the market. Robo-advisors manage how your money is invested, not whether markets go up.
What’s the minimum to start?
Many robo-advisors and brokerages have no minimum or a low minimum, such as $100 to $500.
Is a target-date fund the same as a robo-advisor?
They’re similar in that both manage your asset allocation automatically. A target-date fund is one fund with a fixed glide path; a robo-advisor builds a customized portfolio and may add features like tax-loss harvesting.
Our take
Robo-advisors offer convenient, automated investing for a modest annual fee; DIY investing offers the lowest costs and full control. For many beginners, a single low-cost target-date fund is a smart middle ground. Whatever you choose, keep costs low, automate contributions and stay invested.
Ten-minute task: Write down how much time you want to spend on investing each year and how you reacted the last time markets dropped. If the honest answer is “little time” and “nervous,” a robo-advisor or target-date fund is a great fit. Then use our compound interest guide to see what consistent investing can grow to.