Customs clearance is the step where goods legally cross a border, and it is now part of every ecommerce shipment — not a rare event for big importers. Since the US suspended its $800 de minimis exemption in 2025, low-value parcels clear customs like any other import. This article walks through what actually happens during clearance, the document set that drives it, the hold reasons that cost sellers the most time, and a pre-shipment checklist that prevents most of them.
What clearance actually is
Clearance is the process by which a customs authority reviews an incoming shipment, decides what it is, what it is worth, and what is owed on it, and then releases it into the country. Nothing about it is inherently slow — a clean entry with correct documents can process quickly. What makes clearance feel slow is that it runs on declarations, and a declaration built on wrong or missing information gets corrected at the border, where time is the most expensive it will ever be. Your job as an importer is not to master customs law; it is to make sure the declaration has nothing wrong to find.
The clearance sequence
- Arrival and manifest matching. The shipment arrives and is matched against transport documentation — what was declared to be on board versus what is on board.
- Entry filing. An entry (the formal declaration) is lodged with the customs authority, on the basis of your commercial documents, by a broker, a carrier's brokerage system, or the postal channel's process.
- Classification and valuation review. The authority checks the declared HS classification and declared value against the shipment — this is where most intervention starts. Classification is covered in detail in HS codes and classification.
- Duty and tax assessment. Duty is computed on classified value at the applicable rate; import VAT or equivalent is assessed per the market's regime.
- Release or hold. The shipment releases for delivery, or a hold is placed pending documents, payment, inspection or admissibility review.
- Delivery. Released goods move to the consignee or the fulfillment warehouse and enter sellable inventory.
The document set that drives everything
| Document | Issued by | What it drives |
|---|---|---|
| Commercial invoice | The seller | Declared value, parties, incoterm, currency — the backbone of the entry |
| Packing list | The seller or packer | Physical contents and counts; exam checks reconcile against it |
| Transport document (AWB / B/L) | The carrier | Proof of the contract of carriage; links goods to the entry |
| HS classification | Exporter, broker or importer | Duty rate and regulatory screening per line item |
| Certificates and licenses | Labs, agencies, manufacturers | Admissibility for regulated categories (electronics, children's products, cosmetics and similar) |
| Power of attorney / importer authorization | Importer to broker | Who may legally file on whose behalf |
The invoice deserves most of the attention because everything else keys off it. A commercial invoice that states a vague description ("gift", "sample", "accessories"), omits the incoterm, or declares a value inconsistent with the sales record creates a mismatch that the entry system surfaces on its own. Invoices should describe products the way a customs officer would need to read them: what the item is, what it is made of, what it is for.
Commercial, express, postal — same logic, different rhythm
The sequence above is universal; the filing rhythm differs by channel. Freight consignments clear as entries per shipment, with the documentation lead time built into the schedule. Express parcels clear through carrier brokerage at high volume and high automation — which is fast right up until something non-standard triggers review. Postal flows historically ran simplified processes, and that is precisely what changed: the US suspended de minimis globally on August 29, 2025, and CBP rules published June 24, 2026 introduced new customs processes for postal shipments effective July 24, 2026, ahead of statutory repeal on July 1, 2027. The policy shift itself is laid out in the de minimis briefing.
The holds that cost sellers the most time
- Classification mismatch. The declared code does not match the product's actual construction — either the entry stalls, or duty is reassessed after release.
- Valuation queries. Declared value inconsistent with invoices, sales listings or a known price band for the product invites queries and, in repeated cases, tighter scrutiny of everything you ship.
- Missing admissibility documents. Regulated categories — RF electronics, children's products and others — are held until certificates appear. The certificates exist; they simply were not requested before shipping.
- Description problems. Vague or misleading product descriptions on parcels and invoices are a leading trigger for exams of low-value shipments.
- Unpaid duty or tax at the door. Where the consignee owes money under the delivery terms, collection failure becomes a return or abandonment — the worst of all outcomes. The terms that assign this responsibility are compared in DDP vs DDU.
None of these is exotic. Each is a paperwork discipline failure that was fixable before the box moved — which is why the checklist below exists.
Pre-shipment clearance checklist
- Commercial invoice: precise description, correct value, incoterm, currency, parties — no "samples" or "gifts" on commercial goods.
- HS classification confirmed for the destination market, in writing, with rationale recorded.
- Regulatory certificates gathered before production ships — FCC or CPC documentation for the US categories that need them, CE or UKCA material for Europe and the UK.
- Consignee details complete and consistent across all documents.
- Duty responsibility explicit under the chosen incoterm, and priced or communicated accordingly.
- For parcel flows: declaration data matching what the storefront actually sold.
Frequently asked questions
Do small parcels really need formal clearance now in the US?+
They need to clear customs, yes — that is the core of the change. The USD 800 de minimis exemption that let low-value parcels skip duty was suspended globally on August 29, 2025, and the processes for clearing low-value and postal shipments were rebuilt under CBP rules effective July 2026. The depth of the entry process varies by channel and value, but "no customs involvement" is no longer an operating assumption for any US-bound parcel.
Who is responsible if my shipment is held at customs?+
Responsibility tracks the roles, not the blame. The importer of record answers for the declaration; the broker manages the entry; the seller (often the same party) supplies documents. Most holds are resolved by supplying documents or correcting declarations — which is why the pre-shipment checklist matters more than negotiating skills after the fact. A partner that owns documentation end to end, like a managed shipping program, collapses these finger-pointing loops.
What value should I declare on a commercial invoice?+
The transaction value — what the goods actually sold or were invoiced for. Declaring less to reduce duty is undervaluation; it exposes the importer of record to penalties and, once a pattern is noticed, to heightened scrutiny of all your shipments. The defensible position is the true value with correct classification, not a creative one.
How long does clearance take?+
A clean entry with complete documents is typically fast; a hold can run days to weeks depending on what the authority needs. Rather than quote a universal number, plan the inputs that keep entries clean: correct classification, consistent invoices, certificates ready before shipping. On volatile lanes or during process transitions — as US postal flows went through in 2025–2026 — add buffer and track clearance performance per lane.
