M1 Finance vs Acorns 2026: Fees, Portfolios, and Which App Fits Your Style
M1 Finance vs Acorns comes down to a fundamental question: do you want to design your own portfolio, or would you rather have one built for you? Both platforms make investing accessible to people with little experience or small starting balances, but the way each one handles portfolio construction, fees, and automation is almost opposite.
This comparison covers every major difference between M1 Finance and Acorns in 2026 so you can decide which approach matches how you actually want to invest.
Quick Comparison Table
| Feature | M1 Finance | Acorns |
|---|---|---|
| Monthly fee | $0 (free) / M1 Plus $125/year | $3 / $6 / $12 |
| Minimum to start | $100 (taxable) / $500 (retirement) | $0 |
| Investment style | Custom “Pies” (you build the portfolio) | Pre-built automated portfolios |
| Fractional shares | Yes | Yes (via portfolio allocation) |
| Round-ups | No | Yes (core feature) |
| Auto-rebalancing | Yes (dynamic rebalancing on deposits) | Yes (periodic full rebalance) |
| Individual stocks | Yes (thousands of stocks + ETFs) | No |
| Retirement accounts | IRA (free tier) | IRA (Silver plan, $6/month) |
| Custodial accounts | No | Yes (Gold plan, $12/month) |
| Banking | M1 Spend (checking + debit card) | Acorns Checking |
| Best for | DIY investors who want control without commissions | Passive savers who want automation |
M1 Finance: Overview
M1 Finance launched in 2015 with a model that sits between traditional brokerages and robo-advisors. The platform’s signature feature is the “Pie” — a visual, customizable portfolio where you assign target allocations to individual stocks and ETFs, then let M1 handle the buying and rebalancing automatically.
The appeal is control without the constant management. You decide what to own and in what proportions. When you deposit money, M1 distributes it across your Pie to maintain your target allocations. When positions drift, M1 rebalances by directing new contributions toward underweight holdings. There are no commissions on trades and no management fees on the free tier.
M1 also offers pre-built Expert Pies for users who want a starting point — curated portfolios based on strategies like income investing, hedged equity, or responsible investing. You can adopt one as-is or customize it.
Acorns: Overview
Acorns takes a hands-off approach to investing. Instead of asking you to choose stocks or build allocations, Acorns assigns you to one of several diversified portfolios based on your risk tolerance and timeline. The portfolios hold low-cost ETFs spanning U.S. stocks, international stocks, bonds, and real estate.
The platform’s defining feature is round-ups. Link a debit or credit card, and Acorns rounds every purchase to the nearest dollar, investing the spare change automatically. Over time, these micro-contributions compound, which makes Acorns popular among people who struggle to set aside money intentionally.
If you’re curious how Acorns stacks up against another robo-advisor, our Acorns vs Betterment comparison covers that head-to-head in detail.
Investment Options
M1 Finance
M1 gives you access to over 6,000 stocks and ETFs. You can build a Pie with any combination — a single S&P 500 ETF, a mix of individual tech stocks, a dividend-focused blend, or a recreation of a popular index strategy. There is no limit to how granular or broad your allocation gets.
Fractional shares are standard. If you allocate 5% of a $1,000 Pie to a stock trading at $3,000 per share, M1 buys $50 worth. This makes it practical to hold high-priced stocks like Berkshire Hathaway Class B or Amazon without needing a large account.
Expert Pies provide a middle ground. These are professionally designed portfolios you can adopt, modify, or use as building blocks inside a larger Pie. Categories include General Investing, Plan for Retirement, Responsible Investing, and Income Earners.
Acorns
Acorns does not offer individual stock selection. You choose a portfolio tier — Conservative, Moderately Conservative, Moderate, Moderately Aggressive, or Aggressive — and Acorns populates it with a fixed set of ETFs. Holdings typically include funds from Vanguard and BlackRock covering domestic equities, international equities, government bonds, corporate bonds, and REITs.
In 2026, Acorns also offers optional Bitcoin ETF exposure in certain portfolio tiers for users who opt in, though the allocation stays small.
Bottom line: M1 Finance is built for people who want to decide exactly what they own. Acorns is built for people who would rather not make that decision at all.
Fees
Fee structure is where M1 Finance and Acorns differ most sharply.
M1 Finance (2026)
- M1 Free ($0): Full access to Pies, fractional shares, auto-rebalancing, IRA accounts, and M1 Spend checking. No commissions, no management fee.
- M1 Plus ($125/year): Everything in Free plus a second trading window, lower M1 Borrow rates (reduced margin interest), custodial accounts, Smart Transfers, and premium M1 Spend perks (higher APY on checking, cashback on debit card).
The free tier is genuinely free for investing. M1 earns revenue from payment for order flow, M1 Borrow interest, and M1 Plus subscriptions — not from per-trade fees.
Acorns (2026)
- Acorns Bronze ($3/month): Taxable investment account, round-ups, Acorns Earn cashback, financial literacy content.
- Acorns Silver ($6/month): Everything in Bronze plus IRA retirement account and Acorns Checking.
- Acorns Gold ($12/month): Everything in Silver plus custodial accounts for kids, live Q&A with financial advisors, and enhanced Acorns Earn rates.
For a more detailed breakdown of what each Acorns tier includes, see our Acorns fees guide for 2026.
Fee Math
This is where the difference becomes concrete. On a $5,000 balance, Acorns Bronze costs $36/year (0.72%). M1 Free costs $0. Even M1 Plus at $125/year (2.5% on a $5,000 balance) is a premium product most users skip.
On a smaller $1,000 balance, Acorns Bronze runs $36/year — a 3.6% annual drag. M1 Free still costs nothing. For cost-conscious investors with any balance size, M1’s free tier is hard to beat.
Automation Features
M1 Finance Automation
M1’s automation revolves around maintaining your target allocations. When you deposit money, the platform buys underweight holdings first, nudging your Pie back toward its targets. This “dynamic rebalancing” happens without selling existing positions, which avoids triggering taxable events.
You can schedule recurring deposits (weekly, biweekly, monthly), and M1 handles everything from there. The platform also offers Smart Transfers (M1 Plus), which automatically move money between checking, investing, and borrowing based on rules you set.
M1 does not offer round-ups. If spare change investing is central to your strategy, M1 is not the right tool.
Acorns Automation
Acorns’ entire identity is automation. Round-ups are the headline feature — connect your cards, and every purchase generates micro-investments without any manual action. You can apply multipliers (2x, 3x, 10x) to accelerate contributions.
Beyond round-ups, Acorns supports recurring daily, weekly, or monthly investments. The app also offers Found Money (now Acorns Earn), which deposits bonus investments when you shop at participating brands.
For a broader look at how round-up investing fits into a savings plan, our guide on how to automate savings with round-up apps covers the mechanics and whether the amounts actually add up.
Bottom line: Acorns automates the contribution side — getting money into your account without thinking about it. M1 automates the allocation side — putting money into the right investments once it arrives. Different problems, different solutions.
Banking and Borrowing
M1 Spend
M1’s checking account comes with a Visa debit card, no account fees, and early direct deposit. M1 Plus members earn a competitive APY on uninvested cash and receive 1% cashback on debit card purchases.
Acorns Checking
Acorns Checking includes a tungsten debit card, no overdraft fees, no minimum balance, and access to 55,000+ fee-free ATMs. Every card transaction feeds the round-up engine, making the checking account a natural extension of the investing experience.
M1 also offers M1 Borrow — a portfolio line of credit for borrowing against invested assets at reduced rates (lower with M1 Plus). Acorns does not offer borrowing.
Who Is Each App Best For?
M1 Finance is a stronger fit if you:
- Want to build a custom portfolio with specific stocks and ETFs
- Prefer $0 management fees and no monthly subscription
- Already know what you want to invest in (or want to learn)
- Value auto-rebalancing that keeps your allocations on target
- Want a portfolio line of credit (M1 Borrow)
Acorns is a stronger fit if you:
- Want to invest passively without choosing individual holdings
- Like round-ups as a way to build savings through everyday spending
- Prefer a simple, guided experience with no investment decisions
- Want custodial accounts for kids (Gold plan)
- Value a unified checking-and-investing ecosystem
If you’re weighing Acorns against yet another option, see how it compares in our Stash vs Acorns 2026 or Acorns vs Robinhood breakdowns.
FAQ
Is M1 Finance or Acorns better for complete beginners?
It depends on the kind of beginner you are. If you want to open an app and start investing in five minutes with no research, Acorns is simpler. If you’re willing to spend 20 minutes setting up a portfolio and want more control over what you own, M1 Finance is more rewarding long-term. Neither requires deep financial knowledge.
Can I lose money with M1 Finance or Acorns?
Yes. Both invest your money in real securities — stocks, ETFs, and bonds — whose values fluctuate. Neither platform guarantees returns. Your balance can drop, particularly in the short term. Banking products on both platforms are FDIC-insured, but investment accounts are not.
Does M1 Finance have round-ups like Acorns?
No. M1 does not offer a round-up feature. If investing spare change automatically is important to you, Acorns is the better fit. M1’s strength is in portfolio customization and fee-free investing, not micro-contribution automation.
Is M1 Finance really free?
The core platform is free — no commissions, no monthly fee, no management fee. M1 earns revenue from M1 Plus subscriptions, M1 Borrow interest, and payment for order flow. The free tier includes taxable accounts, IRAs, fractional shares, Pies, and auto-rebalancing.
Can I transfer from Acorns to M1 Finance (or vice versa)?
Yes. Both support ACATS transfers, which move brokerage accounts between brokers without selling holdings. The process typically takes 5–7 business days.
Verdict
M1 Finance and Acorns occupy the same market — accessible investing for everyday people — but they serve different temperaments. M1 hands you the tools to build exactly the portfolio you want, charges nothing for the privilege, and automates the rebalancing so your allocations stay on track. Acorns removes every decision from the process, funnels your spare change into a diversified portfolio, and makes investing something that happens in the background of your life.
If you want control and lower costs, M1 Finance is the stronger platform. If you want simplicity and behavioral nudges that keep you saving, Acorns does that better than almost any other app.
Still exploring your options? Our best investing app for beginners 2026 guide covers a wider range of platforms to help you find the right fit.