Reviewed by Sasha Božič, Licensed Customs Broker

A prior disclosure is a voluntary report to CBP of errors on your entries, filed before CBP opens a formal investigation. Under 19 U.S.C. 1592(c)(4), it sharply reduces the penalty: for negligence or gross negligence, the penalty drops to interest on the unpaid duty. Importers who find underpayments in their own data usually want to disclose them before CBP finds them.
Section 1592 penalizes material false statements or omissions on entries, such as a wrong classification, value or origin that lowered the duty paid. The penalty depends on whether the violation was negligent, grossly negligent or fraudulent.
The disclosure has to be made before, or without knowledge of, a formal investigation into the violation. Once CBP opens an investigation, the protection is gone. Timing is the whole value.
Can I file a placeholder disclosure while I investigate? Importers often file an initial disclosure and then perfect it with the full numbers. Customs counsel should guide this.
Does an audit that finds overpayments also find underpayments? It can. A post-entry audit checks both directions.
Caspian's audits find errors in both directions and quantify them entry by entry, so your counsel can decide on a disclosure with real numbers. See our trade audit. This article is general information, not legal advice.
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