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One job does not become several transactions because it has several invoices
The regulation covers currency received in the course of a trade or business for one transaction or related transactions. Transactions with the same payer or agent within 24 hours are related; transactions farther apart can also be related when the recipient knows or has reason to know they form a connected series. The underlying transaction cannot be divided to avoid reporting.
If an initial payment is $10,000 or less, add subsequent payments within one year of it until the total exceeds $10,000. The threshold-crossing payment starts the 15-day reporting period. Further previously unreported payments have their own 12-month aggregation rule.
The second payment can start the deadline
Fictional domestic example: a service business receives $6,000 in banknotes for one job, then another $5,000 for that job two months later. On these assumptions, the covered cash total becomes $11,000. The report is due within 15 days after the second receipt; neither the first payment nor a new invoice makes the second receipt disappear.
Cash here includes U.S. and foreign coins and notes. Some cashier’s checks, bank drafts, money orders and traveller’s checks of $10,000 or less also count under specific transaction or avoidance conditions and exceptions. Personal checks and bank wire transfers are different; do not classify every payment method as cash.
Filing is not the last task
Use the current Form 8300 filing instructions. IRS guidance says that a last day falling on Saturday, Sunday or a holiday moves to the next business day. Electronic filing can be required because of other information returns; the number of Forms 8300 alone is not the test.
Required reports also have customer-statement duties, generally by January 31 of the year following the cash-payment year. Keep a copy of each filed report for five years from filing; an electronic confirmation is not the report itself. This article does not reproduce all statement contents or form fields.
Scope
- Domestic trade/business illustration only. Actual currency instruments, connected transactions, agency/branch facts, exceptions, customer statements and filing method need their rules. Digital assets and U.S. territory differences are not determined here.
Next step
Track the connected cash receipts and act on the payment that crosses the reporting threshold, using the current filing instructions.
Sources & review notes
Financial Crimes Enforcement Network, Department of the Treasury
Passage, dates and research notes
primary · Complete §1010.330(a)–(e)
until the aggregate amount exceeds $10,000
Read full threshold, related-transaction, installment, currency/instrument/recipient, agent, foreign-transaction, verification and retention provisions. Strict greater-than comparison; no conclusion about a real payer, agent, designated-reporting transaction or exception.
Internal Revenue Service
Passage, dates and research notes
official-guidance · Payment/cash definitions; when/multiple payments; filing and electronic filing; written statements and recordkeeping
within 15 days
Read named sections including current electronic-filing aggregate, customer-statement and five-year record instructions. Page displays last reviewed July 27, 2026. The separate territory paragraph says 10, 000 or more; this article’s domestic example follows the repeated general over 10000 wording and controlling regulation, not that unexamined territory wording. No current penalty amount, digital-asset rule or full form instructions asserted.
Detailed rule records (1)
Report receipts in excess of 10,000 dollars in a single or related transaction. If the initial payment is 10,000 or less, aggregate later payments within one year until the total exceeds 10,000, then file within 15 days of the threshold-crossing receipt. Apply subsequent 12-month payment rules, keep each filed report five years, and follow the required customer-statement instructions.
31 CFR 1010.330: trade/business currency receipts IRS Form 8300 Reference GuideKeep this reading in your learning library.
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