If your parcel has been sitting at customs for days, start with the carrier that is moving it, not with the customs agency. The carrier (the courier or postal operator) is the party responsible for clearing the shipment. It can see why the parcel was held and tell you what paperwork or payment is missing. Customs agencies generally have no view of courier tracking, so calling them about one parcel rarely helps.
This guide explains what "stuck" usually means, how to read your tracking, the common causes, and a step-by-step plan to resolve a hold. It also covers how to prevent the problem on your next shipment, especially if you ship from Singapore.
TL;DR
- Most customs delays are routine queues. A parcel with no action requested often clears on its own, but a request for documents or payment needs your reply.
- Contact the courier or postal operator first. They are the formal point of contact for clearance.
- The usual causes are missing or inconsistent paperwork, a wrong or vague item description, unpaid duties and taxes, restricted goods, and inspection.
- Shipping insurance typically covers loss or damage in transit. It does not usually cover customs delays or seizures.
- Prevention is cheaper than a fix: accurate invoices, correct HS codes and a complete recipient address.
Table of Contents
- What "stuck at customs" actually means
- Why parcels get held
- How long is too long?
- Steps to resolve a customs hold
- Should you contact customs directly?
- Does shipping insurance cover a customs delay?
- Our perspective: most holds are paperwork, not bad luck
- Preventing a hold on your next shipment
- Shipping from Singapore with fewer surprises
- FAQ
- Sources
What "stuck at customs" actually means
Tracking pages use the word "customs" for several different situations. Some are normal and need nothing from you. Others are real holds.
| Tracking status (typical wording) | What it usually means | What you do |
|---|---|---|
| In customs, clearance in progress | The parcel is in the queue for processing | Wait 1 to 3 business days, then check again |
| Released from customs, no new scan | Cleared, but the carrier has not yet scanned it onward | Wait a few days, then ask the carrier |
| Additional documentation required | Customs or the carrier needs an invoice, ID or description | Send what is requested, quickly |
| Duties or taxes due | Payment is needed before release | Pay through the carrier's official link |
| Held for inspection | The parcel was selected for examination | Wait, and answer any questions from the carrier |
| Returned or abandoned | The hold was not resolved in time | Contact the sender and carrier at once |
Exact wording differs between carriers, so read your own tracking message closely. The phrase tells you which row applies to you.
Why parcels get held
Missing or inconsistent documents
The commercial invoice is the document customs officers rely on most. If the declared value, quantity or description does not match the box, or the invoice is missing, the parcel waits until someone fixes it. If you ship regularly, our guide to pro forma versus commercial invoices explains which one fits which shipment.
A vague description or wrong HS code
A line like "gift" or "samples" tells an officer nothing. The WCO-UPU guidance notes that individuals are often unknown traders to customs authorities, so complete and accurate data on the declaration matters. Write what the item is, its material and its use, for example "cotton T-shirts, men's, 10 pieces". Our walkthrough of getting the HS code right shows how to choose the code.
Duties and taxes not paid
Imported goods can attract duty and tax, and the parcel is usually not released until they are settled. In the United States, CBP states that merchandise imported from an online seller or an individual must clear CBP and may be subject to duty, whether new or used. Singapore works the same way in principle: GST and duty must be paid before items are cleared and delivered.
Prohibited or restricted goods
Batteries, liquids, food, plants, medicines, and some electronics and cosmetics face limits that differ by country. If a restricted item is in the box and the sender did not flag it, expect a hold, a request for permits, or a return. Always check the destination country's rules before you pack.
Rule changes and heavy volumes
Sometimes the delay is not about your parcel at all. The UPU says recent changes to U.S. rules on low-value imports have created operational bottlenecks for postal operators. In June 2026, CBP also published a rule on the indefinite suspension of the de minimis exemption for mail shipments and a new postal informal entry process. If you send low-value parcels to the U.S., build in extra days.
An incomplete address or contact details
Carriers and brokers often need to reach the recipient for ID, a tax number or a payment. A missing phone number or email can leave a parcel waiting for an answer that never arrives.
How long is too long?
There is no single number. A routine clearance often takes hours to a couple of days. An inspection can take longer, and an unresolved document or payment issue can run for weeks until the parcel is returned. Treat these as rough ranges, not promises.
A useful rule of thumb:
- Up to 3 business days with no request: normal. Keep watching the tracking.
- 4 to 5 business days with no movement: contact the carrier and ask for the specific reason.
- Any request for documents or payment: act the same day. Delays after that point are usually yours to fix.
Steps to resolve a customs hold
1. Read the full tracking history
Open the carrier's tracking page, not just a third-party app. Look for the exact status, the date, and any reference number. Our parcel tracking guide explains how to interpret the scans.
2. Check your email, SMS and mailbox
When a parcel is held, you will typically get a notification from the courier or postal service by app, email or letter. Check spam folders too. Many holds sit unresolved only because the message was missed.
3. Contact the carrier, with details ready
Have the tracking number, sender and recipient names, item description and declared value on hand. Ask three things: why was it held, what exactly is needed, and by what date. Write down the name of the agent and the case number.
4. Send the documents or pay the charges
Typical requests are a commercial invoice, proof of purchase, a photo ID, a tax number or a permit. Pay only through the link or account the carrier gave you in its official message. If anything about a payment request looks odd, confirm it with the carrier directly before you pay.
5. Ask the sender to correct errors
If the invoice or description is wrong, only the sender can issue a corrected one. Ask them to send it to the carrier and to you, with the same tracking number on it. For formal background on how businesses handle paperwork, this overview of customs formalities in international transport is a helpful companion.
6. Decide on a fallback
If the item cannot clear (a prohibited good, a missing permit), you usually have two choices: return it to the sender or abandon it. Ask the carrier about costs and deadlines for each before the storage period ends.
Should you contact customs directly?
Usually not about one parcel. Singapore Customs states that it does not track or manage postal parcel delivery, and that the courier is responsible for advising the recipient on follow-up. The same logic applies to shipments entering the U.S.: the carrier or broker handles the entry and knows what the officer asked for.
There is one exception. If a carrier tells you CBP has made a specific request, such as a seizure or penalty notice, the notice will name the office to contact. Follow the contact details on that notice.
Does shipping insurance cover a customs delay?
In most cases, no. Insurance generally covers loss or damage in transit. It rarely covers customs fines, import prohibitions or a delay caused by incomplete paperwork. CBP's consumer guidance on internet purchases shows that duties and compliance remain the importer's responsibility whatever the purchase channel. Before you buy extra coverage, read what it excludes, and ask the provider whether a customs hold is a covered event.
Our perspective: most holds are paperwork, not bad luck
We see the same pattern again and again. A parcel is rarely held because customs is being difficult. It is held because one piece of information did not match another: an invoice that says one thing, a label that says another, or a description too short to classify.
That is why we build the booking flow around the documents. When you book with us, labels and shipping documentation are generated for you, and you choose a speed: priority, connect-plus or economy. A faster service does not skip customs, but a clean, complete shipment gives it the best chance of moving without questions.
Our advice, in order of impact:
- Describe each item in plain, specific words.
- Declare the real value. Under-declaring is a common reason for holds and can lead to penalties.
- Include the recipient's phone and email, and tell them to expect a message from the carrier.
- Check restricted-goods rules for the destination before you pack.
- Keep the receipt and the tracking number until the parcel is in the recipient's hands.
— SP
Preventing a hold on your next shipment
Before you pack
- Look up the destination's rules on your item. Our guide to the role of customs in shipping covers the basics.
- Gather the invoice, the HS code and any permits.
- Confirm the recipient will accept the duties and taxes, or arrange for the sender to pay them if the service allows it.
When you label
A readable, correctly placed label prevents misrouting, which can look like a customs delay. See what international parcel labeling involves for placement and content.
When you choose a service
Faster services give you more frequent tracking scans and shorter transit times, which makes problems easier to spot. Economy suits non-urgent, low-risk parcels. If you are comparing the two express options, read our priority versus connect-plus comparison. Other tips are in 8 ways to avoid shipping delays.
Shipping from Singapore with fewer surprises
If you send parcels abroad from Singapore, Simply Parcel lets you compare options and book online. We offer free pickup at your door, automatic shipping labels and customs documentation, real-time tracking, and a choice of priority, connect-plus and economy speeds. There is no monthly volume commitment, so it works for a single parcel as much as for a growing online shop. Optional extra protection is available, and we can point you to guidance on restricted goods and customs requirements before you ship.
Get a shipment quote and see the transit times for your route before you book. If a delayed parcel is already on its way, our guide to fixing delayed international delivery covers what to do next.
FAQ
Why do customs checks take so long?
Customs officers screen very large numbers of parcels, and any mismatch in value, description or paperwork sends a parcel to manual review. Volume peaks and rule changes add to the queue. Complete and accurate declarations are the main thing you can control.
How can I check whether my parcel is stuck in customs?
Use the carrier's own tracking page and read the latest status and date. Customs agencies generally do not have courier tracking data, so they cannot confirm it for you. If the status has not changed for several business days, contact the carrier and ask for the specific reason for the hold.
Can I contact U.S. Customs about a package?
You can, but it usually will not help for a single parcel, because the carrier handles the entry and holds the details. Start with the courier or postal operator. If you receive a formal notice from CBP, use the contact details printed on it.
How long does delivery take after customs clearance?
Once released, a parcel typically moves to the local delivery network and is delivered within a few days. A short gap before the next scan is common. If nothing changes after about five business days, ask the carrier to trace it.
Sources
- Enquiries | Singapore Customs
- How Duties and GST Are Calculated | Singapore Customs
- Internet Purchases | U.S. Customs and Border Protection
- WCO-UPU Postal Customs Guide
- FAQ: Impact of recent US customs regulation changes on international postal services | UPU
- Indefinite Suspension of the De Minimis Exemption for Mail Shipments | Federal Register