Customs bond: the security that lets the goods move

Six documents on a US import belong to the shipment. The customs bond belongs to the company, and that is why it is the one nobody on the desk is watching when it fails.

It is a three-party contract. The importer is the principal, a corporate surety approved by the Treasury guarantees the obligation, and CBP is the beneficiary. The conditions it guarantees are set out in 19 CFR 113.62: pay the duties, taxes and charges; complete the entry; produce documents and evidence when demanded; redeliver merchandise when CBP asks for it; hold unexamined goods intact. Break one and the consequence is liquidated damages, a sum the bond itself has already fixed.

The bond is a release gate

The sentence worth reading in full is in the entry-process rules rather than the bond rules, which is part of why it gets missed:

merchandise shall not be released from Customs custody at the time Customs receives the entry documentation … unless a single entry or continuous bond on Customs Form 301, containing the bond conditions set forth in § 113.62 of this chapter, executed by an approved corporate surety, or secured by cash deposits or obligations of the United States … has been filed.

Not “will be penalised”. Not “may be delayed”. The goods are not released. Everything the desk has been chasing, the commercial invoice and the packing list and the certificate of origin, produces nothing at all if the security behind the entry summary is missing or short. And while that is being sorted out the box is sitting on a terminal, accruing storage, on a clock that started at discharge.

Its size comes from last year

A continuous bond is not sized against the shipment in front of you. The application under 19 CFR 113.11(b)(1)(ii) has to state the total ordinary customs duties, plus the estimated other taxes CBP collects, accruing on everything the principal imported during the calendar year preceding the application — and the regulation is careful to say that the figure is what would have been required “had the merchandise been entered for consumption even though some or all of the merchandise may have been entered under bond”.

So the instrument that has to cover this year’s duty liability is calculated from last year’s duty bill. In a year when rates move, or when a desk’s volume moves, the two numbers are not the same number, and the regulation puts the duty to notice that on the importer:

If the value or nature of the merchandise to be imported will change in any material respect during the next year the change must be identified.

Paragraph (b)(2) turns that into a deadline. Where there is a significant change in the information the bond was approved on, the principal must file a new application “no later than 30 days after the new facts become known to the principal”. The trigger is the importer’s own knowledge. Nobody writes to tell you the clock has started.

And the sanction arrives as a stopped container

CBP reviews bonds on file periodically. Where it finds one inadequate, 19 CFR 113.13(c) notifies the principal and the surety in writing and gives the principal 15 days from the date of notification to remedy it. The same paragraph then adds the part that costs money:

CBP may provide written notice to the principal and surety that, upon receipt thereof, additional security in the form of cash deposit or single transaction bond may be required for any and all of the principal’s transactions until the deficiency is remedied.

Any and all. Read beside the release rule, an insufficient continuous bond converts every entry into a single-transaction-bond entry, and every entry that has not got one is a container that does not move. Paragraph (d) lets CBP require additional security immediately where it believes the revenue is in jeopardy, with no notice period at all.

The sufficiency guidelines in 113.13(b) are worth reading for what they measure: your record of paying duties on time, your record on redelivery demands and holding unexamined merchandise intact, the value and nature of the goods, the supervision CBP expects to exercise, and “The prior record of the principal in honoring bond commitments, including the payment of liquidated damages”. The bond amount is a judgement about the importer, not about the cargo.

Why this sits on the desk and not with the broker

The broker files the bond and the surety writes it, so it is easy to treat as somebody else’s instrument. The three dates above say otherwise. The 30-day application clock starts on facts only the importer holds: a new supplier, a new commodity, a step change in volume. The 15-day remedy clock lands as a letter that reaches whoever opened the post. And a continuous bond can be filed up to 60 days before its effective date, which means the cheap version of this problem is a calendar entry and the expensive version is a demurrage invoice.

A rule proposed on 8 October 2026 would extend the basic importation and entry bond to every informal entry type, where today it is situational, which widens the set of importers for whom all of this is live. The low-value consignments that never needed a bond would need one, and the same 142.4 release rule would apply to them.

What the desk needs is small and dull: the bond number, the activity code, the surety, the effective date and the amount, against this year’s running duty total rather than last year’s, with the renewal and any rider in the same calendar as everything else on the shipment. That is what a payment calendar derived from the contract terms is for, and it is the one import deadline that has nothing to do with a vessel.