IRS Form 8300: Reporting Cash Over $10,000
Dealerships take large cash more often than most businesses, and the reporting rules are less intuitive than they look — a wire is not cash, a cashier's check often is, and payments made months apart can aggregate into a filing obligation.
Key takeaways
- More than $10,000 in cash from one buyer, in a single transaction or in related transactions, triggers Form 8300 — filed within 15 days
- A wire transfer is not cash for this purpose; a cashier's check or money order at or under $10,000 face generally is, but only where the vehicle's sales price exceeds $10,000 — with exceptions for bank loan proceeds and installment contracts
- Transactions are related if they occur within 24 hours, and can be related far beyond that if you know or have reason to know they are connected
- Recurring cash payments on a lease or loan aggregate over a rolling 12-month period, and a new Form 8300 is due each time previously unreportable payments cross $10,000
- You must also furnish each person named a SINGLE annual written statement by January 31 — copies of each form do not satisfy it, and it carries its own penalties
Disclaimer: This page is a general introduction to Form 8300 for dealership operators. It is not tax or legal advice. Consult the IRS's motor vehicle dealership Q&As, its Form 8300 guidance, and your own tax counsel before making filing decisions.
Quick Answer
Any business that receives more than $10,000 in cash in a single transaction, or in related transactions, must file Form 8300 — a joint IRS and FinCEN form — within 15 days of the transaction. The IRS says plainly that auto dealerships frequently receive cash above the threshold and are required to comply. Two things make it trickier than the number suggests. First, "cash" is not just currency: a wire transfer is not cash for this purpose, while a cashier's check or money order with a face amount of $10,000 or less is — though generally only on a vehicle whose sales price is over $10,000, because that is what makes it a "consumer durable" under the regulation — with carve-outs for bank loan proceeds and installment contracts, and an override where you know an instrument is being used to dodge the rule. Second, transactions aggregate — within a 24-hour window automatically, and beyond it whenever you know or have reason to know payments are connected. Filing is not the end of it: you must also send each person named on the form a written statement by January 31 of the following year.
What counts as cash
This is where most dealership mistakes start, in both directions — filing on payments that are not cash, and missing payments that are.
Start with the base definition. Cash is the coin and currency of the United States or of any other country that circulates and is customarily accepted as money where it is issued. Foreign currency counts, which is not obvious and matters in border markets.
A wire transfer is not cash. The IRS addresses this directly in its dealership Q&As: where a customer wired $7,000 to the dealership's account and also presented a $4,000 cashier's check, there was no filing requirement, because the wire does not count and the remaining amount fell below the threshold. Money moving bank-to-bank is already visible to the system this rule exists to feed.
Certain monetary instruments do count — on the right deals. Where a sale is a designated reporting transaction, a cashier's check (by whatever name, including a treasurer's or bank check), bank draft, traveler's check, or money order with a face amount of not more than $10,000 is treated as cash. The face-amount ceiling exists because a large instrument may already have left its own trail upstream: if the customer bought it with more than $10,000 in currency, the bank filed a Currency Transaction Report at that point. Note the gap that creates — an instrument over $10,000 that was not bought with cash produces neither report.
The condition most summaries drop: a designated reporting transaction is a retail sale of a consumer durable, and the regulation defines a consumer durable as tangible personal property suitable for personal use, reasonably expected to last at least a year, and having a sales price of more than $10,000. A vehicle qualifies — the regulation's own example is a $20,000 automobile — but a vehicle sold for $9,000 does not. On that deal the monetary-instrument rule simply does not apply, and cashier's checks are not cash.
Three exceptions cut the other way, and all three are dealership situations. An instrument that is the proceeds of a bank loan is not cash — the regulation's own example is a dealer taking a $9,500 cashier's check with the bank's lien instruction printed on it. Nor is an instrument received in payment on a promissory note or installment sales contract, provided the dealer uses such contracts in the ordinary course and payments in the first 60 days stay under half the purchase price. Nor is one received under an ordinary-course down payment plan. That second exception matters directly to buy-here-pay-here operations.
And the price condition falls away entirely in one situation: if you know the instrument is being used in an attempt to avoid the reporting requirement, it counts as cash regardless of the size of the deal.
The practical consequence is the one dealers find counterintuitive. Outside those exceptions, a customer who hands you three $4,000 cashier's checks on a $30,000 car has given you $12,000 of reportable cash. A customer who wires $30,000 has given you none.
How transactions aggregate
The $10,000 threshold is not per payment. It applies to a single transaction or to related transactions, and the definition of related is broader than a same-day test.
Transactions are related if they occur within a 24-hour period — automatically, with no knowledge requirement. Beyond 24 hours, they are still related if you know, or have reason to know, that each is one of a series of connected transactions. The IRS gives a useful marker: items or services negotiated during the original purchase are related to that purchase.
Where the line falls
The IRS's own example is instructive. A customer buys a vehicle for $9,000 cash, then over the following twelve months pays another $1,500 cash for a transmission repair, accessories, and a custom paint job. Is that reportable? No — unless the dealer knew or had reason to know the sale and the later work were a connected series, for instance if the customer was obligated to buy the additional goods as a condition of the sale. Absent that link, later service work is a separate transaction.
Recurring payments do aggregate
A customer making weekly cash payments on a lease or a loan is paying on the same transaction. Where the initial payment does not exceed $10,000, the regulation requires you to aggregate it with subsequent payments made within one year of that initial payment, until the total exceeds $10,000. At that point a Form 8300 is due.
And it does not end there. A report is required each time previously unreportable payments made within a 12-month period, on a single transaction or on related transactions, exceed $10,000 individually or in aggregate — filed within 15 days of the payment that causes the 12-month total to cross the line. For a buy-here-pay-here operation collecting cash weekly this is a recurring obligation on a rolling window, not a one-time event and not an indefinite running total.
Two cars, two buyers, one form
Where a married couple buys two cars at once from the same dealer and the total cash is $10,200, the IRS treats it as either a single transaction or two related ones — and either way it warrants one Form 8300, not two.
Filing, and the obligation after filing
15 days
Form 8300 must be filed within 15 days after the date the cash transaction occurred. The obligation applies if any part of the transaction occurs in any of the 50 states, the District of Columbia, or a US possession or territory. The regulation's exemption for foreign transactions is narrow: it applies only where the entire transaction occurs outside the United States.
Electronic filing is now mandatory for most
Since January 1, 2024, a business required to file 10 or more information returns of other types — W-2s, 1099s and the like — must file Form 8300 electronically rather than on paper. The count is of other returns: your Forms 8300 themselves do not count toward the ten, and the number of them you file does not affect whether the mandate applies. Below that count, e-filing remains optional. Electronic filing goes through an account with FinCEN's BSA E-Filing System.
Two escape valves exist. If e-filing would cause undue hardship you may request a waiver on Form 8508 — and a granted waiver automatically covers all your Form 8300 filings for the rest of that calendar year. Separately, a filer for whom e-filing technology conflicts with their religious beliefs is automatically exempt — but must write “RELIGIOUS EXEMPTION” across the center top of page 1 of each paper Form 8300.
The customer statement, due January 31
This is the step dealerships miss most often, because it happens months after the deal and nothing in the sales process prompts it. Besides filing the form, you must furnish a single, annual written statement to each person named on any Form 8300 you filed, on or before January 31 of the following year. The regulation requires the filer's name and address, the aggregate amount of reportable cash received from that person during the calendar year, and a legend stating the information was reported to the IRS; the IRS instructs that it also carry a contact person and telephone number.
The word “single” is the trap, and it lands hardest on the buy-here-pay-here operations described above. If you filed several Forms 8300 on the same customer across the year, sending them copies of each form — or of each sales invoice — does not satisfy this. It has to be one combined statement covering the year's aggregate.
Filing the form and failing to send the statement is separately penalized. Penalty amounts are adjusted annually for inflation, so check the current figures rather than a number in an article.
Voluntary filings below the threshold
A dealership may file voluntarily on a suspicious transaction that falls under $10,000, checking box 1b on the form. In that case the rule inverts: the customer statement is not to be provided to the individuals named. Filings below the dollar threshold are not required and are made on a voluntary basis.
How this differs from Canada
Canada has a comparable large-cash reporting regime run by FINTRAC, with a CAD $10,000 threshold — but for most of its history it did not reach car dealerships at all, and the position changed only recently.
FINTRAC's obligations attach to defined reporting entity sectors rather than to businesses generally. Auto dealerships are not a named sector. What changed is that financing or leasing entities became a reporting sector new as of July 10, 2025 — and FINTRAC names the financing or leasing of passenger vehicles in Canada as an activity that puts an entity in that sector. So a dealership with its own lease or finance arm is squarely in scope rather than a marginal case, while a dealership's exposure otherwise turns on whether it qualifies as such an entity, rather than on the simple fact of taking cash for a car.
That produces a real structural difference. In the United States the duty follows the cash: any trade or business receiving more than $10,000 files, dealership or not. In Canada the duty follows the sector: a dealership outside the defined categories that takes a large cash payment does not file, and the deposit is instead reported by its bank. A dealer group operating in both countries should not assume its US cash-reporting process satisfies the Canadian one, or the reverse — they are triggered by different things.
Where dealerships get caught
Almost none of the failures here are refusals to comply. They are timing and memory problems.
The 15-day clock starts at the transaction, not at month end. A deal closed on the 20th is late by the 5th, and nothing in a normal accounting cycle surfaces it in time.
Aggregation is invisible without a running total. A buy-here-pay-here account taking $300 a week crosses $10,000 somewhere around week 34, and then again around week 68. Nobody notices a threshold being crossed by an ordinary payment unless something is counting.
The January 31 statement has no natural owner. It falls months after the deal, on a person who has moved on, and it carries its own penalty.
These are recurring obligations with dates attached, which is the same shape as every other deadline in a dealership that quietly slips. READY HUB is an operations platform, not a tax filing tool, and it will not prepare a Form 8300 — but the reason a 15-day filing gets missed is the reason a delivery slips: nobody owned it and no date was tracked.
Frequently asked questions
When does a car dealership have to file Form 8300?
When it receives more than $10,000 in cash from a buyer in a single transaction or in related transactions. The form must be filed within 15 days of the transaction. It is a joint IRS and FinCEN form, and the IRS notes specifically that dealerships frequently receive cash above the threshold.
Is a wire transfer cash for Form 8300 purposes?
No. The IRS states directly that a wire transfer does not constitute cash for Form 8300 reporting. In its example, a customer who wired $7,000 and presented a $4,000 cashier's check created no filing obligation, because only the cashier's check counted and it fell below the threshold.
Do cashier's checks and money orders count as cash?
Only on deals above a price threshold. A cashier's check, bank draft, traveler's check or money order with a face amount of not more than $10,000 counts as cash in a designated reporting transaction — which is a retail sale of a consumer durable. The regulation defines a consumer durable as tangible personal property expected to last at least a year and having a sales price of more than $10,000, so a $20,000 car qualifies and a $9,000 car does not. Instruments above $10,000 face are reported by the issuing bank instead.
What makes transactions "related"?
Transactions occurring within a 24-hour period are related automatically. Beyond 24 hours they are related if you know or have reason to know that each is one of a series of connected transactions — for example, items or services negotiated as part of the original purchase.
Do weekly cash payments on a loan or lease require a Form 8300?
Yes. Where the initial payment is $10,000 or less, you aggregate it with subsequent payments made within one year of it until the total exceeds $10,000. The obligation then repeats: a report is due each time previously unreportable payments within a 12-month period exceed $10,000, filed within 15 days of the payment that causes the 12-month total to cross the line. It is a rolling window rather than an indefinite running total.
What is the customer statement, and when is it due?
A single, annual written statement you must furnish to each person named on any Form 8300 you filed, on or before January 31 of the following year. It must give your name and address, the aggregate reportable cash received from that person during the calendar year, and a legend stating the information was reported to the IRS; the IRS instructs that it also carry a contact person and telephone number. Note the word single: if you filed several forms on one customer during the year, sending copies of each does not satisfy the requirement — it must be one combined statement. Failing to provide it carries its own penalties. The exception is a voluntary filing on a suspicious transaction below the threshold with box 1b checked — in that case the statement is not to be provided.
Does my dealership have to file Form 8300 electronically?
If your business files 10 or more information returns in a year, yes — that mandate started January 1, 2024, and electronic filing goes through FinCEN's BSA E-Filing System. Below that count, e-filing is optional. A hardship waiver can be requested on Form 8508 and automatically covers all your Form 8300s for the remainder of that calendar year, and there is an automatic exemption where e-filing conflicts with the filer's religious beliefs.
Do Canadian dealerships have an equivalent obligation?
Not on the same trigger. FINTRAC's large cash reporting applies to defined reporting entity sectors rather than to any business receiving cash, and car dealerships are not a named sector. Financing or leasing entities became a reporting sector as of July 10, 2025, and FINTRAC names the financing or leasing of passenger vehicles in Canada as a qualifying activity — so a dealership with its own lease or finance arm is squarely in scope. A dealership outside those categories does not file; its bank reports the deposit instead.
The bottom line
Form 8300 is a short form attached to two genuinely unintuitive rules: what counts as cash is not what most people assume, and the threshold applies across transactions rather than to any single payment. A dealership that treats it as "we file when someone hands us a bag of money" will miss the cashier-check deals and the buy-here-pay-here accounts that cross the line by accumulation.
Build it into the process rather than the memory: flag reportable instruments at the point they are taken, keep a running total per customer, and put the January 31 statement on a calendar with a name against it.
Related reading
Deadlines that actually get met
READY HUB tracks the work on every deal with clear ownership and status across departments. It will not file your paperwork — but a 15-day clock with a name against it is a different thing from one nobody is watching.