High-Yield Savings Accounts: What They Are and How to Pick One

The national average savings account rate at major brick-and-mortar banks is roughly 0.47% APY. High-yield savings accounts at online banks routinely pay 4.5% to 5.0% — more than ten times as much. On a $10,000 emergency fund, that's $47 per year at a traditional bank versus $450 to $500 per year at an online high-yield account. The gap is real, the accounts are FDIC-insured, and switching takes about fifteen minutes.

High-yield savings accounts (HYSAs) exist primarily at online banks — institutions without physical branches whose lower overhead allows them to pass higher rates to depositors. They operate the same as any savings account: FDIC-insured up to $250,000, accessible via online transfer, no penalty for withdrawals. The difference is the rate, which is typically set in relation to the federal funds rate and changes as the Fed adjusts monetary policy.

What to look for when choosing one

The APY is the most visible differentiator, but not the only one worth checking. Look at: minimum balance requirements (many HYSAs have none, though some require $1 to $1,000 to open), monthly fees (the best options have none), transfer speed (most allow ACH transfers to external banks in one to three business days; some offer same-day or next-day access), and whether the account allows sub-accounts or labeled buckets for separate savings goals. Ally Bank, Marcus by Goldman Sachs, SoFi, Discover, and American Express National Bank consistently appear among the higher-rate options with no monthly fees.

Rate shopping has diminishing returns once you're comparing options within a few tenths of a percentage point. A 4.80% account versus a 4.50% account on $10,000 is a difference of $30 per year — not worth significant effort to optimize. Focus on finding an account above 4% with no fees and a reliable institution, then stop searching.

What the rate is actually tied to

HYSA rates are variable — they move with the federal funds rate, which the Federal Reserve sets eight times per year. When the Fed raises rates, HYSA rates typically follow upward within a few weeks. When the Fed cuts rates, HYSA rates follow down. The 4% to 5% rates available in 2024 and 2025 reflect an elevated rate environment; in the 2010s, HYSAs were paying 0.5% to 1.5% because the federal funds rate was near zero. The rate you earn today is not permanent.

This variability is why HYSAs are appropriate for emergency funds, sinking funds, and near-term savings goals — money you'll need within one to five years — but not for long-term wealth building. For money you won't touch for five or more years, investing in a diversified stock portfolio historically produces returns far above any savings account rate, regardless of the rate environment. The HYSA earns more than a checking account while your money waits; it's not a substitute for investing.

FDIC insurance — understanding the coverage limits

FDIC insurance covers up to $250,000 per depositor, per institution, per account ownership category. A single individual with $250,000 in a HYSA at Marcus is fully covered. If they also have $250,000 in checking at Marcus, both accounts are in the same ownership category — total coverage is $250,000, meaning $250,000 is uninsured. Keeping deposits at two separate FDIC-insured institutions doubles the coverage limit to $500,000 for single individuals. For most people with savings well below $250,000, none of this requires attention.

Online banks have failed before — most recently Silicon Valley Bank in 2023 — and FDIC insurance worked exactly as designed, with depositors receiving full access to insured funds within days. The insurance is backstopped by the federal government and has never failed to cover insured deposits since it was established in 1933. Keeping an emergency fund at an online bank is not meaningfully riskier than keeping it at a major brick-and-mortar institution, as long as you stay within insurance limits.

The practical setup that works

Keep your checking account at your primary bank for day-to-day transactions. Open a HYSA at an online bank for your emergency fund and any sinking funds. Link the accounts so you can transfer between them when needed. Set up an automatic monthly transfer from checking to the HYSA for ongoing savings goals. The money earns interest at a meaningful rate while remaining accessible within one to three business days for any actual emergency.

One minor friction: the two-to-three-day transfer time means a HYSA doesn't work well as an account you pull from in an emergency requiring same-day access. Keeping one to two months of expenses in checking — or an overdraft line of credit — handles genuine immediate emergencies while the bulk of your emergency fund earns a higher rate in the HYSA. The transfer delay is the only meaningful operational downside of holding emergency savings at an online bank.