High-yield savings account
A savings account that pays meaningfully higher interest than a big bank's default account.
A high-yield savings account (HYSA) is a regular savings account with a non-embarrassing interest rate. Same FDIC insurance up to $250,000, same instant access to your money, same lack of risk — just a rate that actually compensates you for letting the bank hold your cash.
In the US, online-first banks (Marcus, Ally, Capital One 360, Discover, plus various credit unions) typically lead on rates because they don't carry branch overhead. Big-name brick-and-mortar banks can pay essentially nothing because their depositors don't shop around.
The mechanics are identical to any savings account: you deposit money, you can withdraw it, the bank pays interest. The only friction is opening one — which takes 10 minutes online and is the highest-return 10 minutes most people will ever spend.
Example
In 2025, a high-yield savings account paid 4–5% APY while major US bank "savings" accounts paid 0.01–0.05% — a hundred-fold difference for the exact same product.
Why this matters
Big-bank savings accounts are a quiet wealth tax. The interest gap is the difference between your emergency fund staying ahead of inflation versus quietly losing value every year.
The catch
"High-yield" rates are variable and the bank can lower them anytime. They also chase deposits — rates are highest when banks need funding, lowest when they don't. Don't confuse a promotional rate with a permanent one.