Banks use the Federal Reserve's benchmark rate as their starting point, then add or subtract based on competition and their own costs

When a bank decides what interest rate to offer on your savings account, it begins with the federal funds rate—the interest rate the Federal Reserve sets for banks to lend money to each other overnight. This rate, announced by the Fed roughly every six weeks, acts as the floor. Banks cannot sustainably offer rates much lower than this without losing money on deposits.

From there, a bank's rate depends on three things: how much it needs deposits right now, what other banks are offering, and how much it costs the bank to run the account. A bank offering 4.50% APY is not being generous—it is competing for your money because it needs deposits to lend out or invest. A bank offering 0.01% either has enough deposits already or is betting you will not shop around.

The rate you see advertised is not negotiated. It is set by the bank's treasury or retail banking team and posted on their website and in branches. You either accept it or move your money elsewhere.

Key Takeaways

  • The Federal Reserve's benchmark rate sets a ceiling on what banks will pay; when the Fed raises rates, savings account rates tend to rise within weeks or months.
  • Banks compete for deposits by raising rates when they need money and lowering rates when they have enough, which is why rates vary widely across institutions.
  • Online banks typically offer higher rates than brick-and-mortar banks because they have lower overhead costs and can pass savings to depositors.
  • Your individual credit score and account history do not affect the interest rate you receive on a savings account—the rate is the same for all customers at that bank.
  • Banks can change savings account rates at any time without notice, though they must tell you before the change takes effect.

How the Federal Reserve's rate moves savings account rates

When the Federal Reserve raises its benchmark rate, banks have an incentive to raise savings rates within days or weeks. A higher Fed rate means banks can charge more to borrowers (mortgages, car loans, credit cards), so they can afford to pay depositors more to attract funds. When the Fed cuts rates, the reverse happens—banks lower savings rates because they are earning less on loans.

The lag is not instant. A large national bank might wait two to three weeks before adjusting rates across millions of accounts. A smaller bank or online bank might move within days. Some banks raise rates quickly but lower them slowly, betting that customers will not notice or will not switch. This is why your rate can fall behind the market if you do not check periodically.

The Fed's rate is not the only benchmark banks watch. They also track the prime rate (which is tied to the Fed rate and published by major financial publications) and the rates their direct competitors are offering. If your bank's rate drops to 3.75% while three competitors are at 4.25%, the bank knows it will lose deposits and may raise its rate to stay competitive.

Competition between banks determines the actual rate you see

A bank's need for deposits drives rate decisions more than anything else. During periods when credit demand is weak—say, after a recession when fewer people want mortgages—banks have excess deposits and no reason to pay high rates. During boom periods, when lending demand is strong, banks compete aggressively for deposits and rates climb.

Online banks and credit unions often offer higher rates than traditional banks because their cost structure is different. An online bank has no branch network, no tellers, and lower real estate costs. It can offer a 4.50% rate and still be profitable, while a bank with 500 branches might need to offer only 2.00% to hit the same profit margin. This is why shopping around matters—the difference between a 4.50% account and a 2.00% account is real money over time.

Banks also set rates based on the size and type of deposit. A money market account might pay more than a basic savings account because it requires a higher minimum balance and limits withdrawals. A certificate of deposit (CD) locks your money away for a set term, so the bank can lend it out with certainty and pays a higher rate in exchange.

Your credit score and account history do not affect your savings rate

Unlike loan interest rates, which vary based on your credit score and financial history, savings account rates are posted rates. Every customer at the same bank gets the same rate for the same account type, regardless of credit score, income, or how long you have been a customer. The bank is not lending you money—you are lending the bank your money—so your creditworthiness is irrelevant.

The only exception is if you have a history of overdrafts or fraud at that bank. A bank might close your account or refuse to open a new one, but it will not charge you a higher rate on a savings account you already have. If you are concerned about your banking history affecting your ability to open an account, you can check your ChexSystems report (a banking history report similar to a credit report) at chexsystems.com.

Banks can change rates without your permission, but must notify you first

Your bank can lower your savings rate at any time. Federal law requires the bank to notify you before the rate change takes effect, usually by email or mail, but the notice period is often just a few days. You have no right to refuse the change—your only option is to move your money to another bank.

Rate increases do not require advance notice in most cases, though many banks will notify you anyway because it is good marketing. If your rate jumps from 3.50% to 4.00%, you will find out when you check your account or receive a statement.

This is why monitoring your rate matters. Set a reminder every three months to check what your bank is currently offering new customers. If the new customer rate is significantly higher than your rate, contact the bank and ask if you can move to the new product. Some banks will do it; others will not. If they refuse, moving your money to a competitor takes about a week.

How banks use deposits to generate the money for interest payments

Banks do not pay you interest out of goodwill. They pay you because they lend your deposit to other customers (mortgages, auto loans, business loans) or invest it in bonds and other securities. If a bank pays you 4.00% on a savings account and lends that money at 6.50% on a mortgage, the bank keeps the 2.50% spread as profit (minus operating costs).

When interest rates are low, the spread narrows. If the Fed rate is near zero and your bank pays 0.01%, the bank might lend at 2.50% on a mortgage. The spread is still there, but smaller, so the bank has less incentive to attract deposits and may lower rates further. When rates are high, spreads are wider, and banks compete more aggressively for deposits.

This is also why banks sometimes offer promotional rates. A new bank entering a market might offer 5.00% for six months to attract deposits quickly, knowing it will lower the rate later. The bank is willing to lose money temporarily to build a customer base it can profit from long-term.

Frequently Asked Questions

Why does my bank's rate not match the Federal Reserve rate?

The Federal Reserve rate is the rate banks charge each other for overnight loans, not the rate they pay depositors. Banks add a margin on top of the Fed rate to cover operating costs and profit. The higher the Fed rate, the higher your savings rate will be, but it will never equal the Fed rate.

Can I negotiate a higher interest rate with my bank?

No. Savings account rates are posted rates set by the bank and offered to all customers equally. You cannot negotiate. Your only leverage is to move your money to a bank offering a better rate, which takes about a week to complete.

What happens to my interest rate if the Federal Reserve cuts rates?

Your bank will likely lower your rate within one to four weeks. Banks move faster to cut rates than to raise them because they want to reduce costs when lending income falls. Check your account regularly and be prepared to move your money if your rate falls too far behind the market.

Do banks pay higher rates to customers who keep larger balances?

Not on standard savings accounts. The posted rate applies to all balances. Some banks offer tiered rates on money market accounts where the rate increases at higher balance levels, but this is rare and usually not worth the complexity.

Is a bank's interest rate may provide, or can it change without warning?

Banks can change rates at any time, though they must notify you before a decrease takes effect. Rate increases do not require advance notice. You should check your rate every few months and be ready to switch banks if your rate falls significantly behind competitors.