Fake Bank Cheque Scams: How to Spot Them Before You Lose Out

A fake bank cheque scam works by sending a private seller a cheque for more than the agreed price, then asking for the "overpayment" back by bank transfer before the cheque has actually cleared. The seller refunds real money, hands over the car keys or the rental deposit receipt, and days later the cheque bounces — leaving them out of pocket twice over. It is one of the most persistent frauds on Gumtree, Facebook Marketplace and Carsales private listings, and it turns up just as often in private rental and real estate deposit exchanges on realestate.com.au, Domain and Flatmates.

This article is for informational purposes only and does not constitute legal or regulatory advice.

Why a bank cheque still fools careful sellers

A bank cheque feels safer than a personal cheque because it is drawn on the bank's own funds rather than the customer's account, so most people assume it cannot bounce. That assumption is exactly what fraudsters exploit: a convincing forgery borrows the same visual trust without any of the underlying guarantee, and the seller only discovers the difference once the transaction is already unwound.

The trust gap is widening for another reason: bank cheques are disappearing from everyday use in Australia. The Australian Government's Treasury roadmap targets the end of cheque issuance by 30 June 2028 and the end of cheque acceptance by 30 September 2029, with the system fully retired by 2030, and several banks have already moved faster than that timeline — RACQ Bank stopped issuing cheque books and bank cheques from 2 January 2024, ANZ stopped issuing new cheque books from 16 June 2024, and Suncorp, Bank Australia, Rabobank and other smaller institutions have already stopped accepting cheques altogether, according to ABC News' coverage of the government's 2023 phase-out announcement and the Australian Payments Network's cheques transition page. Cheques now account for roughly 0.2% of all Australian payments. That scarcity cuts both ways for a private seller: a bank cheque arriving from an online buyer is now a genuinely unusual payment method, which should itself raise the level of scrutiny it receives rather than lower it.

How fraudsters build a convincing fake cheque

A genuine bank cheque is printed by the issuing bank, not handed to the customer as a template, so a forger has to reproduce a specific institution's layout, watermark and printed wording from reference images rather than from an editable file they control. Widely available image-editing tools and AI image generators have lowered that barrier: a forger can now approximate a real bank's cheque layout, security wording and watermark pattern from a handful of reference photos, including screenshots sent by a previous victim.

Cheque fraud typologies documented by Australian banks distinguish counterfeit instruments — entirely fabricated — from altered ones, where a genuine cheque has its payee name or amount changed after issue, a distinction set out in ANZ's cheque fraud guidance, which recommends contacting the issuing branch directly and never relying on the cheque's appearance alone before releasing goods or funds.

The overpayment mechanic itself follows a consistent script, one the ACCC's Scamwatch names explicitly as "overpayment scams". The buyer sends a cheque for more than the agreed price, claims it covers "shipping," "an agent's fee," or a genuine mistake, and asks the seller to transfer back the difference immediately — before the cheque has cleared and while the balance still just shows as pending in the seller's account. Refund sent, keys or rental deposit receipt handed over, and the original cheque is later returned unpaid.

Red flags to check before accepting a cheque

A fake cheque rarely gives itself away on print quality alone. It gives itself away through the combination of document details and buyer behaviour around it.

Does the buyer ask for money back before the cheque has cleared

Any request to refund an "overpayment" before the cheque is fully and irrevocably cleared should be treated as the single strongest warning sign in this fraud pattern, regardless of the reason given (shipping, taxes, an agent, a clerical error). Consumer Affairs Victoria's guidance on overpayment scams names this exact ask — refund the difference before the funds are confirmed — as the defining step of the scam, and advises rejecting any overpayment cheque outright and requesting a corrected one for the exact amount.

Is the cheque for more than the agreed price

A legitimate buyer has no reason to send more than the price you quoted. Refuse any cheque that does not match the agreed figure exactly, and treat "I'll send extra for X" as an immediate stop signal rather than a customer-service problem to solve.

Is there pressure to hand over the car or the keys quickly

A buyer who pushes to collect a vehicle or move into a rental before the cheque has cleared, or who invents urgency (relocating interstate, a tight moving date, living overseas), is reproducing a documented behavioural pattern rather than being unusually keen. Queensland Police's cheque fraud guidance flags exactly this combination — urgency plus a payment method the buyer controls the pace of — as a recurring feature of private-sale fraud.

Does the visible balance in your account actually mean the cheque has cleared

No. A credited balance is not the same as cleared, irrevocable funds, and this is the technical point most sellers get wrong.

The clearing-time gap fraudsters rely on

Australian cheque clearing generally shows funds as available within a few business days of deposit, but a visible balance still is not proof of final payment. A bank can still return a fraudulent or forged instrument and reverse the credit after that initial window, sometimes only once manual fraud checks flag an anomaly — which is precisely the gap the overpayment script is built to exploit. ASIC's Moneysmart advises applying the "Stop, Check, Protect" framework to any unexpected payment or refund request before acting on it, per Moneysmart's guidance on protecting yourself from scams, rather than treating a visible account balance as confirmation that money has actually and permanently landed.

The banking industry's position is consistent on this point. ANZ's overpayment scam guidance and the Australian Banking Association's scams resource both direct customers not to release goods, keys or refunds until a cheque has fully cleared and the bank has confirmed the funds are final — not merely showing as a provisional credit. A seller who refunds against a pending balance has no automatic right to have that refund reversed once the original cheque is later dishonoured.

Fraud stages, red flags and the right action

What sellers ask after being targeted

Australian consumer forums surface a handful of recurring questions once someone realises they may be looking at a fake cheque. Threads on Whirlpool's automotive forum about Carsales and private vehicle sales repeatedly circle back to one question: does a bank cheque actually guarantee payment the way cash does, or can it still be stopped after it's handed over? The consistent answer from experienced posters is that a genuine bank cheque is very hard to cancel once deposited, but that "very hard" is not the same as "impossible," and the safer practice discussed on OzBargain's car-selling threads is to insist the cheque is drawn and handed over in person at a branch, then deposited immediately rather than accepted on trust from a courier or a stranger. A second recurring question concerns clawing back goods once they are gone: recovery odds drop sharply once a car has been re-registered or keys to a rental have changed hands, which is why the verification has to happen before handover, not after. A third question, increasingly common as image-editing and AI tools spread, is whether a cheque that "looks completely clean" can still be fake — it can, and a polished appearance is no longer a reliable signal on its own.

Verification checklist before accepting a cheque

A short, repeatable process protects a private seller far better than case-by-case judgement calls made under time pressure. First, refuse any cheque for an amount other than the exact price agreed. Second, call the issuing bank branch using a number you find independently — never one supplied by the buyer — and ask them to confirm the cheque is genuine and the funds are irrevocably available. Third, do not hand over a vehicle, keys, or a rental deposit receipt until the bank has given that confirmation in writing or by a callback you initiated. Fourth, keep every message, listing screenshot and the buyer's stated contact details in case you need to report the incident. Fifth, if a transaction unravels, report it both to your own bank and to Scamwatch without delay.

Property professionals handling proof-of-funds alongside deposit paperwork face a related exposure; our guide on detecting fake proof-of-funds documents in property transactions covers the adjacent document types that often accompany a cheque in a single tenancy or sale file. The same urgency-plus-early-refund pattern also drives fake payment screenshot fraud, which shares the core behavioural signature with bank cheque scams even though the document type differs. Where a BSB or account number is involved, our guide to bank account and IBAN verification is a useful companion check.

Legal position in Australia

Forging a bank cheque or altering it after issue is a criminal offence at the state and territory level, and where the scam is run through an online marketplace, it also engages the Criminal Code Act 1995 (Cth), whose fraud and dishonesty provisions cover using a carriage service — the internet, a phone call, a messaging app — to defraud someone, which describes exactly how these overpayment scams are conducted end to end.

Where the fraudster's funds move through a bank account before being withdrawn or transferred offshore, the Proceeds of Crime Act 2002 (Cth) gives the Australian Federal Police and the Commonwealth Director of Public Prosecutions the power to restrain and confiscate those funds, including money sitting in "mule" accounts used to move scam proceeds, regardless of whether the account holder knowingly participated. Banks' own monitoring obligations sit under the Anti-Money Laundering and Counter-Terrorism Financing Act 2006, which requires reporting entities to lodge suspicious matter reports with AUSTRAC — one of the mechanisms that ultimately helps identify and freeze mule accounts used in cheque and payment scams, a pattern AUSTRAC documents in its 2024 Money Laundering National Risk Assessment. Any personal information a seller shares with their bank or with Scamwatch when reporting a scam is handled under the Privacy Act 1988 and the Australian Privacy Principles.

Manual, judgement-based review catches a limited share of fraud on its own: the Association of Certified Fraud Examiners found only 37% of occupational fraud cases were detected through active controls, with an average detection delay of 87 days, per the ACFE 2024 Report to the Nations — a delay window that, applied to a private sale, is far longer than the time in which a car or a set of rental keys typically remains recoverable.

How CheckFile fits into your controls

A document verification tool does not replace the phone call to the issuing bank or the discipline of waiting for cleared funds — it reduces the time and manual effort needed to apply the same checks consistently, which matters most for real estate agents, property managers and car dealers who handle dozens of proof-of-payment documents a week rather than one. Our real estate sector solution and automotive sector solution automate structural checks on financial documents attached to a transaction, including cheques and their required printed elements.

CheckFile flags indicators of AI-generated or digitally altered content as a complement to existing controls, not a replacement for them; no detection layer can reasonably claim to catch every forged instrument in circulation given how fast forgery tooling evolves. See our AI-generated document and deepfake detection page for detail on how these AI-generation signals work alongside your existing verification steps, and our industry verification guide for a sector-by-sector overview. Pricing is available for teams evaluating a pilot, and our security page explains our approach to data protection. Learn more about CheckFile here.

Frequently Asked Questions

How can I tell if a bank cheque is fake before accepting it

Call the issuing bank branch directly, using a phone number you find independently rather than one the buyer gives you, and ask them to confirm the cheque is genuine and the funds are irrevocably cleared. Never rely on the cheque's appearance alone, and never hand over goods or a deposit receipt before that confirmation.

Is money showing in my account the same as a cleared bank cheque

No. A balance can appear as available within a few business days of deposit, but the bank can still reverse that credit later if the cheque turns out to be forged. Only written or verbal confirmation from the issuing bank that the cheque is irrevocably cleared should be treated as final.

What should I do if I already refunded an "overpayment" and the cheque bounced

Contact your own bank immediately to report the fraud, keep every message and listing screenshot related to the transaction, and report the incident to Scamwatch. Recovering goods already handed over, such as a car or a rental deposit, becomes significantly harder once the transaction has completed.

Is a request to refund extra money by bank transfer always a scam

In the overwhelming majority of documented cases, yes. A genuine buyer has no reason to send more than the agreed price and then ask for the difference back before the original payment has cleared — this is the single most reliable warning sign associated with bank cheque fraud, as described in the ACCC's own overpayment scams guidance.

Why does receiving a bank cheque from an online buyer matter more now than a few years ago

Because bank cheques are being phased out of everyday Australian banking, with several major banks having already stopped issuing or accepting them and the government targeting full retirement of the system by 2030. A buyer offering a cheque instead of a standard bank transfer is now an unusual choice worth extra scrutiny on its own, separate from any other red flags in the transaction.

Does AI image generation make fake cheques harder to spot visually

Yes. Widely available image-editing and AI generation tools let fraudsters reproduce a bank's layout, printed wording and watermark pattern with a level of polish that makes visual inspection alone unreliable. Verifying directly with the issuing bank remains the only dependable check.