M1 Finance Review 2026: Pie Portfolio, Automated Investing and Features

Disclosure: This review is editorially independent. ReviewYourWealth does not have an affiliate relationship with M1 Finance and does not earn a commission from signups. Our analysis is based on publicly available information and independent research. See our full disclosure.

M1 Finance is an automated investing platform built around its signature “pie” portfolio system — a visual portfolio builder where users create a target allocation across stocks and ETFs, and M1 automatically invests deposits and dividend reinvestments to maintain that allocation. With zero commissions, dynamic rebalancing, fractional shares, a margin lending product (M1 Borrow), and integrated banking, M1 targets investors who want more control than a pure robo-advisor but more automation than a self-directed broker. This review covers M1’s pie system, rebalancing, M1 Borrow, and who it suits in 2026.

Quick Verdict: 4.3/5

M1 Finance occupies the most useful position in the investing app landscape — more customisable than Acorns or Stash (you choose your own holdings), more automated than Webull or Fidelity (no trading decisions needed day-to-day), and free of commissions. The pie system makes portfolio construction visual and intuitive. Dynamic rebalancing maintains your target allocation automatically. M1 Borrow provides portfolio-backed lending at competitive rates. The main limitations are a single daily trading window (for basic accounts), no options trading, and the premium (M1 Premium, $3/month) required for afternoon trading. Best for long-term investors who want a specific portfolio without daily management.

The Pie System

M1’s core innovation is the visual pie portfolio. You create a pie by selecting stocks and ETFs and assigning each a target percentage. M1 automatically invests deposits to bring actual allocations toward target percentages. You can use M1’s Expert Pies (pre-built allocations by strategy or goal) or build entirely custom pies. Multiple pies can be nested — a top-level pie might contain 80% “US Equity Pie” and 20% “International Pie,” each containing individual securities.

Key Features

M1 Borrow

M1 Borrow allows users with $2,000+ in their taxable portfolio to borrow against their investments at a portfolio margin rate (currently approximately 5.75% for basic, lower for Premium). This is significantly cheaper than personal loan rates for credit-worthy borrowers and does not require a credit check or application. The maximum borrowing amount is 40% of the taxable portfolio value. Uses include short-term liquidity needs, large purchases, and debt consolidation at lower rates than personal loans. Risk: if the portfolio declines significantly, M1 may issue a margin call.

Pros and Cons

• ✅ Zero commissions, fractional shares
• ✅ Pie portfolio system — visual, intuitive, fully customisable
• ✅ Dynamic rebalancing — maintains target allocation automatically
• ✅ M1 Borrow — portfolio-backed loans at competitive rates
• ✅ IRA accounts (Traditional, Roth, SEP)
• ✅ No active management required once portfolio is set
• ❌ Single trading window (AM only on basic)
• ❌ No tax-loss harvesting
• ❌ No options trading
• ❌ $3/month Premium required for afternoon trading window
• ❌ $100 minimum to open taxable account

Who M1 Finance Is For

• Long-term investors who want to automate a specific portfolio: M1’s automation of deposits into a custom allocation removes the decision-making from ongoing portfolio management — perfect for buy-and-hold investors with a defined strategy.
• Investors who want more control than a robo-advisor: Unlike Betterment or Wealthfront (which manage everything), M1 lets you specify exactly which securities at exactly what allocation — with full automation maintaining that choice.
• Investors who might need liquidity: M1 Borrow’s portfolio-backed lending provides emergency liquidity at lower rates than personal loans, without selling investments and triggering tax events.

Final Verdict

M1 Finance is the best platform for long-term investors who want a specific portfolio maintained automatically at zero cost. The pie system makes custom allocation intuitive; dynamic rebalancing removes ongoing management burden; M1 Borrow adds unique liquidity value. The single trading window and absence of tax-loss harvesting are real limitations for more active investors. But for the buy-and-hold, low-maintenance investor with a clear investment thesis, M1 Finance is the strongest option in its category.

Compare investment apps in our best investment apps for 2026 roundup. Also reviewing: Acorns and Stash.

Written by Q

The Optimum Wealth Fanatic

Every product reviewed on this site goes through 10–40 hours of independent research — fee structures, fine print, real user experiences from Reddit, Trustpilot, and BBB complaints, plus wealth impact calculations showing the actual dollar difference over 10 years. No marketing fluff. No "I tested this." Just the math, the trade-offs, and an honest verdict.

Last reviewed: April 12, 2026 · About Q · Affiliate Disclosure