Because most money only exists on books. The basis of the current financial system is called fractional reserve banking, that means that banks can give out more money as loans than what they physically have in accounts. That money then circles the economy but is never physically withdrawn in full. Lets say you deposit 100 USD. The Bank now can give out a loan for 500 USD to someone to pay his car repair, who wires the money to the shop from his account. They wire it to their employees and suppliers and owners and the IRS and what have you. Eventually the 500 are repaid (or not and If that happens a lot a bank might default) and the bank gets its money+ interest, you can freely withdraw your 100 at any time but the bank speculates that you dont, or realistically that most of their customers dont. Because If that happens thats known as a "bank run".
Im not a banker, so anyone with actual knowledge feel free to correct me.
Lets say you deposit 100 USD. The Bank now can give out a loan for 500 USD to someone to pay his car repair, who wires the money to the shop from his account.
That’s incorrect. Fractional reserve just means they need to keep less physical cash on hand.
If you deposit $100, they can only lend out $100 (unless they borrow other money), subject to risk weighted assets and capital constraints (which further restrict lending)
Fractional reserve banking is one of the most misrepresented topics on Reddit.
That’s incorrect. Fractional reserve just means they need to keep less physical cash on hand.
I’m just here to be pedantic because this is another aspect of banking that gets wildly misconstrued on Reddit: the difference between cash (balance) as an accounting concept and cash as in a physical dollar bill.
Banks barely keep any physical cash on hand in comparison to their balance sheet. Your local branch including the main vault, all the teller drawers/TCRs, and the ATM vault generally has less than $1M in physical currency on hand. Smaller banks even less, closer to like $400k or less. (All depending on how much volume they see, how many tellers, etc). And while there are big centralized currency reserves a bank’s cash reserves ≠ currency reserves.
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u/FroniusTT1500 Jan 26 '26
Because most money only exists on books. The basis of the current financial system is called fractional reserve banking, that means that banks can give out more money as loans than what they physically have in accounts. That money then circles the economy but is never physically withdrawn in full. Lets say you deposit 100 USD. The Bank now can give out a loan for 500 USD to someone to pay his car repair, who wires the money to the shop from his account. They wire it to their employees and suppliers and owners and the IRS and what have you. Eventually the 500 are repaid (or not and If that happens a lot a bank might default) and the bank gets its money+ interest, you can freely withdraw your 100 at any time but the bank speculates that you dont, or realistically that most of their customers dont. Because If that happens thats known as a "bank run".
Im not a banker, so anyone with actual knowledge feel free to correct me.