The Customs Exam itself is free — what's expensive is the demurrage, detention and storage it drags out. Understand the billing logic and you'll know where the money goes and how to save it.
What the Three Fees Are
Demurrage: charged by the carrier when a container isn't picked up from the terminal or yard within Free Time.
Detention: charged by the carrier when a container isn't returned within Free Time after pickup.
Storage: stacking fees for cargo held at the exam site or a designated warehouse.
All three are billed by the carrier or the facility per their tariff schedule; the tariff schedule governs.
Who Bears These Costs
| Situation | Borne By |
|---|---|
| Overrun from a normal Customs Exam | Usually the cargo owner (importer) |
| Caused by carrier or forwarder operational error | The responsible party per the contract |
| Exam triggered by inaccurate declaration | The importer |
| Cost-sharing method | Subject to the contract and the carrier's tariff schedule |
Costs arise with the cargo; the cargo owner typically pays first, then seeks recovery from the relevant party based on liability.
Why It's Especially Expensive During an Exam
Exam duration is uncertain, so the container just sits at the terminal, and billing starts the moment Free Time expires.
The exam site may also charge separate stacking, devanning and repacking fees.
The longer it drags, the more demurrage accrues by the day — and the rate per day often climbs over time.
How to Spend Less: Actionable Steps
Step one: have the forwarder or customs broker apply to the carrier for extended free container time (if available).
Step two: the seller supplies documents as fast as possible to shorten the exam — this is the most fundamental saving.
Step three: arrange container pickup the moment it's released; don't let it keep sitting at the terminal.
Step four: return the empty container as soon as possible after devanning to avoid detention.
Step five: book the drayage in advance before pickup so waiting for a truck doesn't eat into your return window.
Handling Process: Who Does What
Step one: upon receiving the exam notice, first estimate the likely exam cycle.
Step two: the forwarder applies to the carrier for free container time or fee reduction (if available).
Step three: the seller supplies the missing documents as fast as possible to speed up the exam.
Step four: after release, the forwarder immediately arranges container pickup and hauls the cargo out.
Step five: return the empty container immediately after devanning to close out billing.
Preventive Moves Sellers Can Make in Advance
Before shipping, learn the carrier's Free Time so you have a clear time budget in mind.
Complete documents and accurate declarations reduce the odds of a Customs Exam.
Arrange drayage and the drop warehouse in advance so you can connect immediately after release.
Agree with your forwarder on how exam costs are shared — don't argue about it after the fact.
