I'm aware that savings accounts in the US are restricted to 6 withdrawals per month, but what differences exist aside from that?

From what I understand, both are FDIC insured, meaning there's virtually no risk to the account holder.

95% of funds in savings account can be lent out by the bank and hence you receive interest on those funds similar to the treasury rate, but what about checking accounts? Why do you receive interest on funds in those? Is it due to overnight lending to other banks?

  • Some banks may pay interest on checking accounts as a loss leader. Most people don't like doing business with multiple banks, so if they get your checking account business they're also getting a customer into their credit card, their mortgage, their car loan, their managed investments, etc.
    – Ben Voigt
    Apr 4, 2021 at 0:48

3 Answers 3


For this answer I am assuming that regulation D will be re-enabled when the current crisis is over.

Then the major difference between savings and checking for the consumer is the number of transactions that can be done in a month.

Yes both have FDIC coverage, as do Certificates of Deposits, and "money market" funds. FDIC coverage also extends to Roth or traditional funds deposited with the bank.

All of this is true for both banks, and credit unions.

Why do some banks pay interest on checking accounts?

Interest is the way they attract money into the bank. One way they also attract money is by offering other incentives such as free checking or a better interest rate if you setup direct deposit. They hope once you do this then you will keep making deposits and you will eventually have both a checking and savings account. They also may give a better rate on a CD or auto loan if you have large enough balances. They may also do this if you add a debit card to the mix.

The decision to offer interest on checking is dependent on how the flow of money is performing. Once the funds are in the bank they offer better interest rates to get customers to move it to savings, or a CD. Once it is in one of those accounts, then it can be a source for loans which is how the bank generates the funds to pay the interest on deposits, pay for their employees and other expenses, and leaves them with a profit.

Decades ago when my credit union paid 6% for a money market account, and 3% for a savings account, they only paid 1% for checking. That worked for them. Car loans, student loans and mortgages were charged rates above 6%.

Now when a savings account earns less than 0.5% and an auto loan or mortgage is at 2%, then there isn't much room for checking accounts to earn interest. Unless of course the bank needs to get an influx of new money, so they offer a great rate on checking account, so they can later convert you to other products...

  • GREAT point about the probability this rule change will go away when the pandemic is past. Thanks for making it, because I didn't give it much thought when writing my own answer!
    – RiverNet
    Apr 4, 2021 at 14:03
  • Ahh, so the underlying difference is the bank can't lend out money held in checking accounts? Is this a law or is it the result of some more general actuarial requirement?
    – Zaz
    Apr 13, 2021 at 20:57

Limitations on savings accounts are now at the discretion of the bank.
Before anyone freaks out on my answer, read this article about changes to Regulation D relaxing limitations on withdrawals from savings accounts:


That being said, many banks may give you a certain number of transactions for free and then charge you a fee for anything beyond that, but this is a case-by-case situation.

Depending (again) on your bank, you may or may NOT receive interest on your checking account, and many times (but not always!) banks will pay this interest on a checking account ONLY if you maintain an average daily balance above a certain amount.

Banks offer interest as incentive to leave your money with them, and checking accounts are the most volatile (meaning they have the most frequent changes to balances as people pay bills and receive paychecks), so the only way to pay interest on checking balances (from a practical standpoint) is to set a minimum balance limit at which such payments are made.

  • But even when a checking account does pay interest, it's usually much lower than a savings account, so what is the underlying reason for that? And what kind of loans is a bank able to make with checking deposits?
    – Zaz
    Apr 3, 2021 at 23:22
  • THAT is a question I don't have an answer for, my friend. I suppose that's up to the bank.
    – RiverNet
    Apr 3, 2021 at 23:29
  • I had no clue that in the US there was a limit on transactions re "savings" accounts!
    – Fattie
    Apr 4, 2021 at 13:04
  • I haven't ever had one of m banks ENFORCE this, and so it's somewhat surprising to know this was the rule until the pandemic hit. As noted in one of the answers, this will probably revert back to the old rules once the crisis is over.
    – RiverNet
    Apr 4, 2021 at 14:01
  • @Zaz: I would guess that the reason for different interest rates is that checking accounts cost more to service than savings accounts. A checking account will typically have many more transactions than a savings account, and some of those transactions may be actual paper checks, that need some human handling. A savings account probably has just a few electronic transfers between that and the checking account.
    – jamesqf
    Apr 4, 2021 at 17:25

A financial institution will offer a number of distinct PRODUCTS. A savings account and a checking account are merely types of deposit products. They are governed by terms defined by the bank as the banker designs the product to attract depositors' funds. They do this in a highly regulated environment within many constraints defined by legislation, regulatory body edicts, and case law. The bank may represent things as regulatory limitations when it's simply not in the bank's business-interest. Or the reg might be there to protect the bank from itself. It depends.

When deciding between a savings account and a checking account, read the disclosures for the two instruments noting the terms of the accounts (it's a contract between depositor and bank) and comparing them. Pick the one that more closely suits your needs. You can't just assume a checking account is X and a savings account is Y. The details are something you need to consider.

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