SoFi Invest vs Interactive Brokers Comparison: Fees, Features, and More (2026)
SoFi Invest and Interactive Brokers are two leading discount brokerages offering commission-free stock and ETF trading. Use this head-to-head comparison table to evaluate fees, features, trading tools, and account options to help you decide which broker is right for you in 2026.
| Feature | SoFi Invest | Interactive Brokers |
|---|---|---|
| Website | https://www.sofi.com/invest/ | https://www.interactivebrokers.com/ |
| Broker Type | Discount (self-directed online brokerage + robo-advisor) | Self-directed online discount broker |
| Trading: Stock & ETF? | Yes | Yes |
| ETF & Stock commission | $0 commissions | IBKR Lite: $0 US-listed stocks/ETFs (US residents); IBKR Pro: $0.005/share fixed (min $1) or $0.0005–$0.0035/share tiered (min $0.35) |
| Fractional Shares? | Yes ($5 min on select stocks/ETFs) | Yes (eligible US/CA/EU stocks & ETFs, from $1) |
| Percent Allocations? | No | Yes (TWS Rebalance Portfolio sets custom target %) |
| Crypto Trading? | Yes. SoFi Crypto offers 28 cryptocurrencies (as of May 2026); requires SoFi Checking & Savings. | Yes (spot crypto via Paxos/Zero Hash for eligible US IB LLC clients; permissions required; also futures/ETPs) |
| Crypto Fees | Tiered 1.90%/1.50%/1.25%/0.90% of trade value by monthly volume (<$1k/$1-5k/$5-10k/$10k+); possible ≤0.10% spread. | 0.12%–0.18% of trade value (monthly volume tiers), USD 1.75 min/order (capped at 1% of value); no added spreads/markups/custody fees; possible $0.15/mo Paxos fee |
| Options Trading? | Yes. Options trading available (long calls/puts, covered calls, cash-secured puts; 0DTE and IRAs). | Yes |
| Options Fee | $0 commissions and $0 contract fees. Regulatory fees apply (e.g., ORF $0.02, OCC $0.025 per contract). | US: Lite $0.65/contract ($1 min; Pro rates after 1k contracts/mo); Pro $0.15–$0.65/contract (volume/premium tiers), $1 min/order + exchange/reg/clearing fees |
| Bond Trading Available? | No. Individual bonds not offered; exposure via bond ETFs and mutual funds only. | Yes (US Treasuries, corporates, munis, CDs, 1M+ global bonds) |
| Receives payment for order flow (PFOF)? | Yes. Receives payment-for-order-flow revenue share via Apex Clearing. | Sometimes (Lite receives PFOF on US stocks/options; Pro generally avoids via SmartRouting) |
| Interface: Web trading? | Yes. Full trading on SoFi mobile app (iOS/Android) and sofi.com website. | Yes (Client Portal web; IBKR Mobile and GlobalTrader apps) |
| Desktop trading? | No | Yes; Trader Workstation (TWS) and IBKR Desktop. |
| API Trading? | No | Yes; TWS API and Web API for retail algorithmic trading. |
| Mutual Funds: Offered? | Yes | Yes |
| Total Mutual Funds | 6,800+ | 50,000+ |
| NTF Mutual Funds | 6,800 | 20,000+ |
| Non-NTF Fund Fee | 0.2% of purchase (max $20); 2% for interval/tender funds | Lesser of 3% of trade value or USD 14.95 per transaction (US). |
| Early Redemption Fee? | Yes (no SoFi short-term fee) | Yes (no IBKR fee); fund companies may charge per prospectus. |
| Redemption Hold (Days) | Fund-specific (CDSC varies by fund); no SoFi-imposed hold. | None by IBKR (0 days); fund prospectus may impose. |
| Early Redemption Fee | Fund-specific CDSC (varies); SoFi charges none (purchase tx fee 0.2% max $20). | $0 from IBKR; funds may charge per prospectus. |
| Accounts: Margin Accounts? | Yes (Self-Directed; apply, $2,000 min). | Yes (Cash, Margin, or Portfolio Margin; typically $2,000 equity for margin). |
| IRAs Offered? | Yes: Traditional, Roth, and SEP IRAs. | Yes (Traditional, Roth, SEP, SIMPLE, Inherited, Rollover). |
| HSAs Offered? | No | No |
| Money Market Sweep? | Yes (optional FDIC bank sweep via Apex). | Yes (Insured Bank Deposit Sweep Program). |
| CDs Offered? | No | Yes (brokered CDs). |
| Robo-Advisor: Offered | Yes | Yes |
| Robo-Advisor Service | SoFi Automated Investing (Robo Investing) | Interactive Advisors |
| Robo-Advisor Fees | 0.25% annual wrap/advisory fee plus fund expenses; $50 min. | 0.10%–0.75% AUM/year (varies by portfolio; IA 0.10%–0.20%, managers 0.25%–0.75%); no commissions |
| Basics: Headquarters | San Francisco, CA | Greenwich, CT |
| Year Founded | 2011 | 1977 |
| Clearing Firm | Apex Clearing Corporation | Self-clearing |
| Local Branches? | No | No |
| New Account Minimum | $0 | $0 |
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