A customs hold has one of four causes

The four causes, and how to tell which one you have

A parcel sitting in customs feels like one problem, but it is four different problems wearing the same tracking status, and they have different actors, different clocks, and different endings. The diagnostic below is the whole method: read the most recent tracking event and any message the carrier or buyer has received, match it to a cause, and the row tells you who can act and what the action is.

The vague description deserves a concrete illustration, because it is the cause sellers create themselves and the easiest one to stop creating. A declaration that reads gift, accessories, or samples gives the officer nothing to classify and nothing to value, so the parcel leaves the automated stream and joins a manual queue. The same item declared as handmade ceramic coffee mug, glazed stoneware answers what it is, what it is made of, and roughly what it should be worth, all in one line — and a declaration that answers those questions rarely gets asked them in person. Which form those words go on, and how HS codes work, is the customs-forms page's subject; this page cares about what happens when the words were not good enough.

Who can actually act: why customs talks to the addressee

The instinct when your parcel is held is to call someone, and the frustration of this problem is that almost nobody you can call is the right party. Import customs in the destination country is a domestic authority: its legal counterparty is the importer, and for a small consumer parcel the importer is your buyer, the addressee. It has no relationship with a foreign seller, and no obligation to discuss the shipment with one. The origin carrier that sold you the label is your one indirect channel — it can lodge a query, forward an information request, and tell you what its own network knows — and for UPS, FedEx, and DHL, whose brokers file the customs entry, that channel is genuinely useful. For postal shipments the handoff is longer: USPS passes the parcel to the destination post, which deals with its own customs, which deals with your buyer.

So the practical division of labour is this. You act on the causes that live in the paperwork — vague descriptions and doubted values — by answering the carrier's requests quickly and with evidence. Your buyer acts on the causes that live at the destination — unpaid charges and any notice customs sends. And nobody acts on a seizure except customs itself. Knowing which side of that line your cause sits on saves the week most sellers spend emailing the wrong organisation.

Coaching your buyer through a fee notice without losing the sale

The most common hold is also the most survivable: the parcel has cleared assessment and is simply waiting for import charges the buyer did not expect. The sale is rarely lost to the fee itself — it is lost to the surprise, and to the silence that follows while the buyer decides the whole thing is a scam. The coaching message worth sending has three parts: this notice is real and expected on international orders; pay it through the official carrier or postal channel printed on the notice, never through a link in an unexpected text, because fee-notice phishing imitates exactly this moment; and it has a deadline, after which the parcel starts its journey back. Send it the day tracking shows a customs event, before the buyer messages you.

The structural fix is to remove the surprise entirely. Where the service supports it, choosing DDP at quote time folds duties and taxes into the one all-in price you pay, so your buyer never meets a fee notice at all — the trade-off against DDU, and who should choose which, is covered with the customs forms. Short of that, a line in your listing that import charges are the buyer's responsibility converts the surprise into an agreement made at checkout, which is a much easier conversation to have later.

How long holds really last, and when the parcel comes back instead

Hold length is a function of cause, not of luck. Charge holds last exactly as long as the buyer takes to pay, bounded by the notice deadline. Paperwork holds — description and value — last as long as the review queue plus your response time, which is why answering an information request the day it arrives is the single highest-leverage thing a seller can do. Seizures for restricted items resolve on legal timescales or not at all. The honest general statement is that most holds resolve without anyone doing anything wrong, and the ones that do not resolve end one of three ways: the parcel is returned to you, abandoned, or destroyed, with refused charges most likely to produce a return and prohibited items least likely to.

Timeline reference — verified against CBP's traveler and e-commerce guidance and carrier brokerage documentation on 2026-08-15. Routine clearance is typically hours to a few days; a paperwork or valuation review typically adds days to a few weeks; charge holds run to the deadline printed on the buyer's notice, commonly measured in weeks. No destination publishes a binding maximum for every case, so treat any precise day-count you read elsewhere as that publisher's anecdote. Re-check cadence: every 6 months, by the named review owner recorded with this page.

If the parcel does start coming back, the returned-to-sender page covers what each carrier does with it and who pays to reship. If it stops moving entirely and never resolves into either delivery or return, that becomes a lost-parcel problem, and the claims page covers the filing windows for a parcel with no delivery scan.