Why your shipment is stuck at customs

Nothing is more stressful than goods you've paid for sitting somewhere you can't reach. Here's what's actually happening, and what genuinely fixes it.

First: it is usually paperwork

The overwhelming majority of customs holds are documentary. Not suspicion, not smuggling, not bad luck. A form that does not match another form.

That is good news. Documentary problems get solved, and usually faster than people fear.

The common causes, roughly in order

1. Documents don't match each other

The commercial invoice says 500 units. The packing list says 480. The bill of lading describes the goods differently again.

Customs cannot process an entry it cannot reconcile. This is the single most common cause, and it almost always originates with the supplier — who assembled the paperwork carelessly because it was not their problem.

2. Valuation is questioned

If the declared value looks low for the goods, customs may question it. They maintain valuation references and they use them.

Sometimes it is legitimate — you genuinely got a good wholesale price. Then you need proof: purchase order, proof of payment, supplier invoice, correspondence.

Sometimes a supplier has under-declared "to help with customs" without being asked. That help is a liability. Under-declaration carries penalties far above any duty saved, and once flagged, your future shipments get more attention.

3. Classification dispute

Your HS code determines your duty rate. If customs believe the goods belong under a different code with a higher rate, the entry stalls until it is resolved.

Prevention is getting classification right at the start rather than optimistically. A code that saves 5% but is wrong will cost you far more in delays and reassessment.

4. Form E or certificate of origin problems

If you claimed preferential duty under Form E and the certificate has issues — details inconsistent with the invoice, questionable authenticity, missing original — the claim is challenged.

Scrutiny here increased notably through 2026. Check the certificate before the goods ship, every time.

5. Physical examination

Some shipments are selected for examination. Sometimes by risk profile, sometimes at random. The container is opened and contents verified against the declaration.

If everything matches, it clears — just slower. If it does not, you have a bigger problem.

6. Regulated goods without clearance

Food, cosmetics, supplements, medical devices, certain electronics, agricultural products — these need clearance from the relevant agency (FDA, NTC, BPI) on top of customs. Without it the shipment does not move, and obtaining permits after arrival is slow and expensive.

Check the regulated and prohibited list before you pay a deposit, not after.

7. Unmarked or unidentifiable cargo

On consolidated shipments, boxes without a visible client code cannot be matched to a consignee. They sit as unidentified cargo while someone works out whose they are.

This one is entirely preventable and entirely on the supplier. Every box, every time, code written clearly. Tell them explicitly — do not assume.

What actually gets it released

1. Find out the specific reason. "Stuck at customs" is not a reason. Documentary discrepancy, valuation query and examination hold need completely different responses.
2. Provide exactly what is asked for, quickly. Partial responses restart the clock.
3. Go back to the supplier for corrected documents where the issue originates with them. Push hard — it is their error and your money.
4. Pay any assessed difference if the assessment is correct. Disputing a correct assessment costs more in storage than it saves.
5. Let your forwarder or broker handle the interaction. They know the process and the people. Individual importers going direct usually slow things down.

How to make this rare

• Check draft documents before goods ship — every shipment
• Never let a supplier under-declare, even when offered
• Get your HS classification right once, properly
• Verify Form E details against the invoice yourself
• Insist on your client code on every single box
• Confirm regulated-goods clearance before ordering
• Use a forwarder who tells you about a problem on day one rather than day ten

That last point is worth more than it sounds. Most delays get expensive not because the problem was hard, but because nobody told the importer early enough to act.

Related reading

• Form E: the document that cuts your China duty to zero
• Customs broker or freight forwarder — which do you need?
• What you can't import from China to the Philippines