Extra money suddenly shows up in your bank account. Can you keep it? We look at what happens in Canada, the US, the UK and Australia when you spend money deposited by mistake, including real cases where people were charged.
You open your banking app and there's an extra $8,000 sitting there. No explanation. Maybe it's a payroll glitch, maybe someone typed one digit wrong. Either way, the same thought pops into almost everyone's head: if the bank made the mistake, can I keep it?
Short answer: no. If you spend money deposited by mistake knowing it isn't yours, you can be charged with a crime in Canada, the US, the UK and Australia. People have gone to jail for it.
The "bank error in your favour" card is a Monopoly thing. Real life works differently.
Here's the part most people get wrong. They assume the money becomes theirs because it landed in their account and they didn't do anything to cause it.
But a bank balance isn't cash in your pocket. It's a record of what the bank owes you. When a credit lands there by error, the law in all four countries says you have a duty to give it back. Once you know it's not yours and you spend it, move it or hide it, you've crossed from "lucky" into "dishonest," and dishonesty is exactly what theft laws are built around.
Two separate things can happen. First, the bank or sender takes the money back, often by simply reversing the deposit. If you've already spent it, your account goes negative and they can sue you for the balance, plus interest and costs. Second, if you knew the money wasn't yours and spent it anyway, police can lay theft or fraud charges. That's where jail becomes possible.
The first part is almost automatic. The second depends on what you knew and what you did next.
The good news for anyone hunting for one clear answer: the rule is basically the same everywhere we looked. Only the statute names and the details change.
There's no special "mistaken deposit" crime in the Criminal Code, and there doesn't need to be. Theft under section 322 covers taking or converting anything with intent to deprive the owner of it, and knowingly spending someone else's money fits. Theft over $5,000 carries a maximum of 10 years in prison.
On the civil side, Canadian courts use the idea of unjust enrichment. In one British Columbia case that dragged on for nearly a decade, a bank won judgment for funds that had been credited and then spent, with the court finding the people who spent them couldn't have had any legitimate expectation that the money was theirs.
Most states handle this under general theft laws, and some have a specific offence for property "delivered by mistake." Pennsylvania is a good example. In 2019, a couple from Montoursville had $120,000 land in their BB&T account after a teller typed in the wrong account number. Police say they spent most of it within about two and a half weeks on an SUV, a camper, four-wheelers and a race car, and gave $15,000 to friends. They were charged with felony theft and receiving stolen property, and were also facing roughly $107,000 in overdraft fees.
That last detail matters. Criminal case aside, the bank simply pulled the money back.
England and Wales actually have an offence written for this kind of situation: dishonestly retaining a wrongful credit, under section 24A of the Theft Act 1968. It carries up to 10 years.
A Slough woman pleaded guilty to it after a council clerical error sent her £8,400 meant for a supplier. Instead of telling her bank, she moved the money to another account and spent it within a few months. In an earlier case, Michaela Hutchings received £52,000 from Lichfield District Council by mistake, spent about £9,000 in two days, and ended up with a 12-month community order and 150 hours of unpaid work.
This is the one everyone remembers. In May 2021, Crypto.com tried to refund a Melbourne woman AU$100 and instead sent her about AU$10.47 million because a staff member typed an account number into the amount field. Nobody noticed for seven months.
By then a $1.35 million house had been bought and millions had been sent to an account in Malaysia. She pleaded guilty to recklessly dealing with proceeds of crime and was sentenced to the 209 days she'd already spent in custody. A civil court separately ordered the house sold to repay the exchange.
Same principle as everywhere else. Bigger headline.
Not every mistaken deposit ends in handcuffs, and it's important to be honest about that. Prosecutors usually look at a few things:
Our honest take: the size of the deposit matters less than people think. A few hundred dollars might never interest police, but the bank will still claw it back, and "I didn't think it was a big deal" isn't a defence.
Don't spend it, don't move it, and don't "park it" in savings to earn a little interest. Just leave it.
Contact your bank right away, ideally in writing. A secure message through your banking app creates a timestamp showing you flagged the problem.
And don't send the money back yourself to someone who calls claiming it's theirs. That's a well-known scam: a fraudster deposits money (sometimes from a stolen account or a cheque that later bounces), then pressures you to "refund" it. Let the bank reverse it through official channels.
If you already spent some before realizing what happened, call the bank anyway and ask about a repayment arrangement. Coming forward early is the single best thing you can do for yourself, both with the bank and if police ever get involved.
Yes, and usually without asking. Your account agreement almost certainly gives the bank the right to correct errors, which means reversing the credit. If the money's already gone, the reversal can push your balance negative, and you'll owe the difference like any other overdraft.
So there's no version of this where you come out ahead by keeping money deposited by mistake. The best case is you give it back. The worst case is you give it back, pay legal costs, and pick up a criminal record along the way.
This article is for general information only and isn't legal advice. If you're facing charges or a repayment demand, speak to a lawyer where you live.
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