Money Market Accounts vs High-Yield Savings Accounts: Which Is Better?

When parking cash reserves to earn top-tier yields, savers often debate between High-Yield Savings Accounts (HYSAs) and Money Market Accounts (MMAs). While both offer FDIC insurance and competitive interest, key differences in liquidity and payment capabilities set them apart.

Feature-by-Feature Comparison

Feature High-Yield Savings Account (HYSA) Money Market Account (MMA)
Interest Rates (APY) Typically slightly higher (4.25% – 5.15%) Competitive (4.00% – 5.00%)
Debit Card Access Rare (ACH transfer only) Standard feature
Check-Writing Privileges No Yes (physical checkbook provided)
Deposit Insurance FDIC/NCUA up to $250,000 FDIC/NCUA up to $250,000

Crucial Distinction: MMAs vs Money Market Mutual Funds

Do not confuse a bank Money Market Account (MMA) with a brokerage Money Market Mutual Fund (MMF) (like Vanguard’s VMFXX or Fidelity’s SPAXX). MMAs are FDIC-insured deposit accounts. MMFs are SIPC-protected mutual funds that invest in ultra-short-term US Treasuries and debt obligations.

For most households, keeping an emergency fund in an online HYSA provides the ideal balance of yield and separation from impulse spending.