Betterment and M1 Finance represent two different philosophies for automated investing. Betterment is a true robo-advisor: it makes all portfolio decisions for you, harvests tax losses daily, and handles everything automatically. M1 Finance is a hybrid: you choose your holdings, it automates the buying and rebalancing. Betterment costs 0.25% per year; M1 Finance is free (or $3/month for Premium). The right choice depends on how much control you want and whether tax-loss harvesting justifies the fee.
Head-to-Head Comparison
| Feature | Betterment | M1 Finance |
|---|---|---|
| Annual fee | 0.25% (Digital) / 0.40% (Premium) | $0 (Basic) / $3/month (Premium) |
| Account minimum | $0 | $100 (taxable) / $500 (IRA) |
| Portfolio control | Low — risk score only | Full — you pick every holding |
| Individual stocks | No | Yes |
| Tax-loss harvesting | Daily, all balances | None |
| Human advisor access | Premium ($100K+) | No |
| Fractional shares | Yes | Yes |
| Cash management | Cash Reserve (FDIC) | High-yield savings (Premium) |
| Portfolio borrowing | No | M1 Borrow (35% of portfolio) |
| 529 accounts | No | No |
| IRA types | Roth, Traditional, SEP, Inherited | Roth, Traditional, SEP |
Fee Comparison: Who Pays Less?
M1 Basic is $0. M1 Premium is $3/month = $36/year. Betterment is 0.25%/year.
| Portfolio Size | Betterment (0.25%) | M1 Premium ($36/yr) | Savings with M1 Premium |
|---|---|---|---|
| $10,000 | $25 | $36 | Betterment cheaper by $11 |
| $14,400 | $36 | $36 | Break-even |
| $50,000 | $125 | $36 | M1 saves $89 |
| $100,000 | $250 | $36 | M1 saves $214 |
| $250,000 | $625 | $36 | M1 saves $589 |
| $500,000 | $1,250 | $36 | M1 saves $1,214 |
But fees don’t tell the whole story. Betterment’s tax-loss harvesting can generate 0.1–0.5% in annual after-tax return improvement for taxable accounts. On a $100,000 taxable portfolio at 22% bracket, that’s $100–$500/year in tax savings. This can offset — or exceed — Betterment’s $250/year fee advantage over M1.
Tax-Loss Harvesting: Betterment’s Decisive Advantage
Betterment performs daily automatic tax-loss harvesting on all balances. M1 Finance offers zero automatic tax-loss harvesting.
When this matters most:
- You are in the 22%, 24%, 32%, or higher federal tax bracket
- You hold assets in a taxable (non-IRA) account
- Your account balance is $20,000+
When it matters less:
- You’re investing entirely inside a Roth or Traditional IRA (no taxable benefit)
- You’re in the 0% or 12% bracket (lower tax savings from harvesting)
- You’re a long-term buy-and-hold investor who rarely sells
For a $100,000 taxable portfolio in the 24% bracket, Betterment’s tax-loss harvesting likely generates more annual value than the 0.25% fee costs. For IRA accounts only, tax-loss harvesting provides no benefit, and M1’s $0 fee wins decisively.
Portfolio Control: M1 Finance’s Decisive Advantage
Betterment offers 5–8 portfolio options based on a risk score (1–10). You cannot:
- Add individual stocks
- Choose specific ETFs (Betterment selects them)
- Override the bond/stock split beyond the risk setting
M1 Finance lets you:
- Add any stock or ETF available on US exchanges
- Set any target allocation (e.g., 100% VTSAX, or 30 individual dividend stocks)
- Build nested Pies (sub-portfolios within a portfolio)
- Use Expert Pies as templates and customize them
If you have a specific investment thesis — dividend investing, factor tilts, specific sector exposure, or a three-fund portfolio — M1 Finance accommodates it. Betterment does not.
IRA Account Comparison
Both platforms offer Roth IRA, Traditional IRA, and SEP-IRA accounts with no advisory fee difference from taxable accounts.
Betterment IRA advantages:
- $0 minimum (vs M1’s $500 IRA minimum)
- Automatic asset location (places tax-inefficient assets in IRA)
- Goal-based planning for retirement
M1 Finance IRA advantages:
- $0 advisory fee (vs Betterment’s 0.25%)
- Choose your own index funds or stocks
- No portfolio restrictions
Verdict for IRA-only investors: M1 Finance wins on fees. Tax-loss harvesting has no benefit inside an IRA, removing Betterment’s main fee justification. At $100,000, you save $214/year with M1 Premium vs Betterment.
Who Should Choose Betterment
- You want complete hands-off automation with no portfolio decisions
- You have a taxable account and are in the 22%+ bracket (tax-loss harvesting pays)
- You want goal-based planning tools and progress tracking
- You want CFP access at some point (Premium tier at $100K+)
- You’re starting with under $100 (Betterment has no minimum)
Who Should Choose M1 Finance
- You want to choose your own stocks, ETFs, or build a three-fund portfolio
- Your primary accounts are IRAs (tax-loss harvesting irrelevant; M1’s $0 fee wins)
- Your balance is above $14,400 and you prefer paying a flat fee
- You want portfolio borrowing (M1 Borrow)
- You follow a DIY investment philosophy (Bogleheads, dividend investing, factor tilts)
Related Robo-Advisor Guides
- Betterment Review 2026
- M1 Finance Review 2026
- Betterment vs Wealthfront 2026
- Best Robo-Advisors 2026
- Best Robo-Advisors & Financial Advisors 2026
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