Does Fidelity Have a Minimum Balance? No — How the Cash Management Account Works

The Fidelity Cash Management Account has no minimum balance requirement and no monthly fee. You can open the account with $0 and access every feature at any balance level. Among banking products, its most distinctive feature is FDIC coverage of up to $4 million through its FDIC-Insured Deposit Sweep Program, which spreads cash across program banks if you choose it.

Fidelity Account Minimums at a Glance

No Minimum Balance on the Cash Management Account

The Fidelity Cash Management Account operates like a checking account but is held at Fidelity, which is a brokerage rather than a bank. Because there is no monthly fee, there is no minimum balance threshold to maintain. The account pays a debit Visa card, includes mobile check deposit, and reimburses all ATM fees charged by any machine worldwide with no cap and no minimum balance requirement to qualify.

This is meaningfully different from traditional bank checking accounts, where ATM fee reimbursements are typically restricted to premium account tiers with high balance requirements. At Fidelity, the same reimbursement applies to a $50 balance as to a $500,000 balance.

FDIC Coverage Up to $4 Million

If you choose the FDIC-Insured Deposit Sweep Program as your core position, Fidelity sweeps Cash Management Account cash into FDIC-insured program banks, each providing up to $250,000 in coverage, for FDIC coverage of up to $4 million. This applies regardless of balance, meaning even a small balance in the sweep is FDIC-insured. Cash held in SPAXX instead is not FDIC insured; it is covered by SIPC.

Standard FDIC coverage at a single bank is $250,000 per depositor per account type. For customers who maintain large cash positions, the Fidelity sweep program provides substantially more FDIC protection than a single-bank deposit account.

Earning Interest Through Money Market Funds

The Cash Management Account itself earns minimal direct interest on the uninvested cash balance. Most customers link the account to a Fidelity government money market fund, most commonly SPAXX (Fidelity Government Money Market Fund) or FDLXX (Fidelity Treasury Money Market Fund). These funds’ yields change daily (SPAXX’s 7-day yield was 3.50% as of October 13, 2026) and they have no minimum investment requirement. The money market fund balance remains available for spending and is transferred back to the core account automatically when a debit transaction posts.

This structure means the effective yield on a Fidelity Cash Management Account can be competitive with high-yield savings accounts, with the added benefit of unlimited ATM reimbursement and multi-bank FDIC coverage.

What the Account Does Not Include

Fidelity lists complimentary checkwriting with the Cash Management Account. The account also does not accept cash deposits at a teller window, as Fidelity does not operate traditional bank branches. Cash can be deposited via ATM at select locations or by mailing a check.

For a full overview of Fidelity banking features, see the Fidelity banking guide.

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.