The gap between a big-bank savings account and a competitive one is worth a holiday a year, for filling in one form. Plus what your deposit insurance actually covers.
The account most people use is the worst one
Large national banks commonly pay near nothing on savings. Online banks and credit unions frequently pay many times more for a product that is functionally identical: same federal insurance, same instant transfers, better app.
On a 10,000 emergency fund, the difference between a token rate and a competitive one is the price of a decent holiday every year, for filling in one form. It is the highest hourly rate available in personal finance.
Know what your insurance actually covers
FDIC insurance for banks, and NCUA for credit unions, currently protect up to 250,000 per depositor, per institution, per ownership category. If the institution fails, you are made whole up to that limit.
Two things worth understanding. Joint accounts and different ownership categories are insured separately, so a couple can cover more than 250,000 at one bank. And some fintech apps are not banks — they pass your money to partner banks, and the protection depends on that arrangement working as described. Read what the app says about where your money actually sits.
The four places worth considering
High-yield savings account
The default for an emergency fund. Rates are variable and move with the Federal Reserve, so today's leading rate is not permanent. Money is available within a day or two, the balance cannot fall, and it is insured. Nothing else combines those three as cleanly.
Money market account
Similar to savings, sometimes with cheque-writing or a debit card. Rates are usually comparable. Note the distinction from a money market fund, which is an investment product and not FDIC insured — the names are confusingly close.
Certificates of deposit
You lock money away for a fixed term at a fixed rate. That fixed rate is the advantage: it survives rate cuts. Withdraw early and you pay a penalty, usually some months of interest.
CDs suit money with a known date — a house deposit eighteen months out, a tax bill in spring. They suit an emergency fund badly, because emergencies do not consult the maturity schedule. A ladder — several CDs maturing at staggered intervals — is the usual compromise.
Treasury bills
Short-term US government debt, bought directly or through a brokerage. Two features that matter: they are backed by the federal government rather than by deposit insurance, which removes the 250,000 ceiling as a concern, and the interest is exempt from state and local income tax.
That exemption is not small if you live somewhere with high state tax — a T-bill can beat a savings account paying a nominally higher rate once tax is accounted for.
Cash is safe in nominal terms and not in real ones. If your account pays 4% while prices rise 3%, you are gaining about 1% in purchasing power — and when the gap runs the other way, a rising balance is a shrinking amount of stuff. That is the price of keeping money instantly available, and it is worth paying for the money you might need. It is not worth paying for money you will not touch for a decade.
A workable split
- One month of essentials in your everyday bank, for immediate access.
- The rest of the emergency fund in a high-yield savings account at a different institution — the transfer delay is a feature, not a bug.
- Money with a known date within a couple of years in CDs or T-bills matched to that date.
- Anything beyond that probably should not be cash at all. See how to start investing.
What to check before moving
Whether the advertised rate is promotional and for how long; whether there is a minimum balance or monthly fee; how long transfers actually take; and whether it is a bank, a credit union, or an app sitting on top of one. Rates change constantly, so compare current offers rather than trusting any list — including this page.
This is educational content, not financial advice, and insurance limits and rules can change.