You opened a savings account at one rate. Months later the number on your statement is different, and nobody called to tell you. That is normal, and it is legal. Once you know how the number gets set, you can tell a cut you cannot avoid from one you should not put up with.
Where the Number on Your Statement Comes From
The Federal Reserve sets a target for the federal funds rate, and that target is the floor under what banks earn on cash. When it is high, a bank earns more on the money it parks and more on the loans it makes. When it is low, both shrink.
Your savings rate is the price a bank pays for the raw material it lends out. Deposits are its cheapest funding, and the policy rate decides what that funding is worth. So the Fed sets what your deposits are worth to a bank. The bank then decides how much of that value to hand you.
Nobody at the Fed sets your rate. No rule says a bank must pass along any particular share of a Fed move.
What "Variable" Means in Your Account Agreement
Almost every savings account in the US is a variable-rate account. Federal law (the Truth in Savings Act and its Regulation DD rules) makes the bank disclose four things about the rate: that it can change, how it is determined, how often, and any cap on the size of a change. Most agreements answer the middle two with "at our discretion, at any time."
Regulation DD also requires 30 days of advance notice before a bank changes a term in a way that hurts you. Rate changes on a variable-rate account are written into the rule as an exception. No warning is owed. You agreed to that when you opened the account.
A certificate of deposit (CD) is the other side of that trade. You lock money up for a set term, say 6 months or 3 years, and the rate is fixed for all of it. A Fed cut cannot touch it. In exchange you give up free access, and pulling money out early costs a penalty, usually a set number of months of interest named in the terms.
Why Increases Crawl and Cuts Arrive Fast
Savers notice this pattern without having a name for it. Rate rises reach your account slowly, over months. Rate cuts land in weeks.
It is documented, not a rumor. A 1992 study of deposit pricing by David Neumark and Steven Sharpe, published in the Quarterly Journal of Economics, found banks were slower to raise savings rates when market rates rose, and faster to cut them when market rates fell. The effect was strongest where banks faced the least competition. Two ordinary facts explain it.
The first is that deposits are sticky. Most people never move their savings. The account is tied to a paycheck, a bill payment, a habit. A bank that raises its rate pays more on every existing dollar to attract a few new ones, and most existing customers were staying anyway. Raising is an expensive way to buy a little new money, so it happens once enough customers start leaving and not much before.
The second is that a cut costs the bank nothing. The day the Fed cuts, what the bank earns on its own cash falls right away. Every competitor is squeezed the same day, so cutting puts the bank behind nobody.
Why Online Banks Usually Pay More
Branches cost money: rent, staff, cash handling, security. A bank without them runs on less and can pay more out of the same income.
The bigger reason is who each bank's customers are. Someone who opened an account online got there by comparing rates, and will compare again. Those deposits are not sticky, so an online bank that lets its rate drift down watches the money leave. A large branch network holds deposits that mostly stay whatever it pays. Same Fed, very different pressure.
Teaser Rates and Balance Tiers
Two structures make an advertised rate mean less than it looks.
An introductory rate applies for a set window, often the first few months, then reverts to the bank's ordinary rate. It is disclosed rather than hidden. It is also easy to forget.
A tiered account pays its headline rate on only part of your balance. Some tiers set a minimum, so a balance under $5,000 earns far less than the rate in the ad. Some run the opposite way, paying the top rate on only the first few thousand dollars. Find which tier your balance sits in before you believe the number.
APY Is the Number Worth Comparing
Your disclosure shows two rates. The interest rate is the plain annual rate. The annual percentage yield (APY) is what a full year actually earns once compounding is counted, meaning interest that starts earning its own interest.
Take an illustrative 4.00% interest rate compounded monthly. Each month you earn a twelfth of 4%, and next month's interest is figured on the slightly bigger balance. Over a year that comes to 4.07% APY. The higher the rate, the wider that gap.
Compare APY to APY. Daily compounding at one bank and monthly at another do not compare on the interest rate alone. APY already folds that in. Banks must disclose it, and must quote it in any ad that names a return.
What to Actually Do
Look up your own rate instead of assuming it is what it was. It takes a minute in your banking app.
Then do the arithmetic on your real balance. Using illustrative numbers, $8,000 at 0.40% APY earns about $32 over a year, and the same $8,000 at 4.00% APY earns about $320. That is a $288 difference for an application that takes roughly twenty minutes, plus a few days for the first transfer to clear. You can keep the old account open while you do it.
Treat a CD as a specific trade rather than a better savings account. You are buying certainty with access. That works when you know the date you need the money: tuition due in September, a lease deposit due in March. It is a poor fit for an emergency fund, because not knowing the date is the whole reason that fund exists.
