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)
WealthVieu
Written by WealthVieu

WealthVieu researches and writes data-driven personal finance guides using primary sources including the IRS, Bureau of Labor Statistics, Federal Reserve, and Census Bureau.

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