Japan Post Tracking

Japan Post tracking lets you follow any domestic or international shipment sent through Japan's national postal operator, from an EMS express parcel to a Yu-Pack delivery inside Japan. Enter your tracking number in the box above to see the latest scan, the current location, and the delivery status in one place.

Japan Post moves mail and parcels to more than 190 countries, and each service carries a tracking number you can follow end to end. This guide explains how to read that number, what every status means, how long each service takes, how customs and compensation work, and what to do when tracking stops updating.

How to find your Japan Post tracking number

Every tracked Japan Post item carries a tracking number printed on the receipt, label, or dispatch slip you receive when the item is sent. You need that number to follow the shipment online, and where it appears depends on the service.

Common places to find it:

• EMS label: printed near the barcode on the EMS waybill, usually starting with two letters such as EE or EA.
• Yu-Pack waybill: in the top right corner of the bill, as a numeric number.
• Letter Pack slip: on the peel-off receipt portion of the Letter Pack envelope.
• Online store confirmation: in the shipping or dispatch email from the seller or marketplace.
• Sender's copy: if someone shipped to you, ask them for the number on their receipt.

Japan Post tracking number format

Japan Post uses two tracking number formats: a 13-character international format and an 11-to-13-digit domestic format. Knowing which one you hold tells you whether the item is crossing a border or staying inside Japan.

The international format follows the Universal Postal Union S10 standard, and the final two letters (JP) identify the country that issued the number, Japan. EMS numbers usually begin with the letter E, for example EE or EA, while tracked Small Packet and Air Packet items can begin with other letter pairs.

One common mistake is trying to track a barcode that is not a tracking number. Japan Post is explicit about this:

"Barcode numbers starting with 'U' (for example, UL123456789JP) attached to small packets or customs declaration forms that are treated as ordinary packages are not tracking barcodes." (Japan Post, EMS Track and Trace notices, 2024.)

How to track a Japan Post parcel

You can track a Japan Post item in seconds using the InstantParcels universal tracker at the top of this page, which works for both international and domestic numbers. There is no need to visit separate sites for EMS, Yu-Pack, or Letter Pack.

1. Copy your tracking number exactly as printed, with no spaces.
2. Paste it into the tracking box above and start the search.
3. Read the latest scan, location, and status, then check back for updates as the item moves.

For items sent abroad, the final delivery leg is handled by the destination country's postal service after the parcel clears customs, so the last scans may appear under that local carrier rather than Japan Post.

Japan Post international services and delivery times

Japan Post offers four main international services, EMS, International Parcel, International Air Packet, and Small Packet, and EMS is the fastest and most fully tracked. Delivery speed and tracking depth differ across them.

"EMS is handled with top priority among international mail items, and is delivered promptly." (Japan Post, Comparing respective shipping types, 2026.)

Here is what each international service covers:

• EMS (Express Mail Service): the priority option, delivered in about 2 to 4 days to most destinations, with full point-to-point tracking and built-in compensation.
• International Parcel: sent by Airmail (about 6 to 10 business days), Economy Air or SAL (about 2 to 3 weeks), or Surface (several weeks), with tracking on each.
• International Air Packet: a tracked small-packet airmail service, renamed from International e-Packet Light on June 1, 2026, taking roughly 5 to 21 days.
• Small Packet: a low-cost option for small, light items where you can choose air, SAL, or surface speed, with tracking on the recorded version.

Note on naming: effective June 1, 2026, the service formerly called International e-Packet Light was renamed International Air Packet. Older labels and store listings may still show the previous name.

Choosing the right Japan Post service

The best Japan Post service depends on how fast you need delivery and how much tracking and protection you want. For most cross-border parcels there are three practical choices.

• Choose EMS when speed and protection matter, since it is the fastest option at 2 to 4 days and includes compensation up to 2 million yen.
• Choose International Air Packet for small, tracked items where a window of about 5 to 21 days is acceptable and you want to keep cost down.
• Choose Small Packet or Surface for the lowest cost on light or non-urgent items, accepting longer transit times of several weeks.

Whichever you pick, a tracked service gives both sender and recipient visibility from posting in Japan to final delivery.

Japan Post domestic services

Inside Japan, the two most common tracked services are Yu-Pack for parcels and Letter Pack for documents and small items, and both include tracking with an 11-to-13-digit number. They differ in handling, weight, and whether compensation is included.

• Yu-Pack: the standard domestic parcel service, with full tracking, optional delivery-date scheduling within 10 days, a choice of six time slots, and included compensation for loss or damage.
• Letter Pack Plus: a flat-rate tracked envelope delivered to the door with a signature on receipt.
• Letter Pack Light: a flat-rate tracked envelope left in the recipient's postbox, with no signature required.

A key difference is insurance: Yu-Pack includes compensation, while neither Letter Pack option carries insurance cover. All three remain fully trackable through the same universal tracker.

Registered mail and letters

Japan Post also offers registered mail, known in Japan as Kakitome, which adds tracking and limited compensation to letters and documents. A registered item is scanned at handover and on delivery, and usually requires a signature on receipt.

Standard letters and postcards without a recorded option are not tracked, so there is no number to follow for ordinary mail. If you need proof of posting or delivery, choose registered mail, Letter Pack, or a parcel service that includes tracking.

EMS insurance and compensation

EMS includes compensation of up to 2 million yen for actual loss or damage, regardless of the destination country. This cover is part of the service and does not require a separate insurance purchase for lower-value items.

The cover scales in a simple way. Items declared at up to 20,000 yen are covered at no extra cost, and for higher values you can add coverage up to the 2 million yen ceiling for a premium of 50 yen for every 20,000 yen of declared value above the first 20,000 yen. (Japan Post, EMS Insurance Program.)

To make a claim, the sender in Japan usually starts the process, so keep the EMS receipt along with any evidence of the item's value and condition.

Japan Post tracking status guide

Japan Post records six core scan events as an international item moves from posting in Japan to final delivery abroad, plus several exception statuses. Each status tells you where the parcel is and whether action is needed.

• Posting / Collection: the item has been accepted at a Japan Post counter and entered into the network.
• Arrival at Outward Office of Exchange: the parcel has reached Japan's international processing center and is waiting for its outbound flight.
• Dispatch from Outward Office of Exchange: the parcel has left Japan. Tracking often pauses here until the destination country scans it.
• Arrival at Inward Office of Exchange: the parcel has reached the destination country and been registered by its inbound office.
• Customs Presentation / Customs Clearance: the parcel is being inspected by customs in the destination country, which can take from one to several days.
• Final Delivery: the parcel has been delivered to the address, or returned to and received by Japan Post.

You may also see exception statuses that need attention:

• Retention: the item is being held, often at customs or a local depot, pending a fee, a document, or pickup.
• Attempted delivery: the carrier tried to deliver but could not, and will usually retry or hold the item for collection.
• Addressee unknown or address incomplete: the local carrier could not match the address, which can lead to a return.
• Returned to sender: the item is on its way back to Japan, typically after failed delivery or unpaid charges.

Japan Post international tracking, customs and duties

International Japan Post tracking commonly pauses for several days after a parcel leaves Japan, because the next scan only appears once the destination country receives the item. This gap is normal and does not mean the parcel is lost.

Every international shipment travels with a customs declaration form, a CN22 for lower-value items or a CN23 for higher-value parcels, which the destination's customs authority uses to assess duties or taxes. Most items are sent on a delivered duty unpaid basis, so the recipient pays any import duties, taxes, or handling fees, and the parcel can be held until they are settled.

Once the item clears customs, the local postal operator delivers it. Japan Post hands the parcel to that carrier for the final leg, similar to how other Asian cross-border services such as China EMS route tracked packets through destination posts. For United States deliveries, that final carrier is USPS.

What to do if Japan Post tracking is not updating

A pause of 3 to 10 days after the "Dispatch from Outward Office of Exchange" scan is the most common reason Japan Post tracking appears stuck. Transit time across borders and customs processing both add silence between scans.

If your parcel has not updated, work through these steps:

• Give an international shipment at least 7 to 10 days past the last scan before treating it as a problem.
• Check the destination country's postal tracking as well, since the local carrier scans the final leg.
• Confirm the tracking number is correct and complete, with the right two-letter prefix and the JP suffix.
• Look for a "Retention" or customs status, which may mean a fee or document is needed before delivery can continue.
• Contact the sender, who can open an inquiry with Japan Post as the shipper.
• For EMS, ask the sender about the compensation cover that comes with the service if the item is confirmed lost or damaged.

Tips for tracking parcels shipped from Japan

Many international shoppers track Japan Post items bought from marketplaces such as Mercari, Rakuten, and Amazon Japan, or sent through forwarding and proxy services. A few habits make tracking smoother.

• Save the full 13-character number, including the two-letter prefix and the JP suffix, as soon as the seller ships.
• If you used a forwarding service, the Japan Post number covers the leg from Japan, while the final domestic carrier in your country may issue its own number.
• Allow extra time around Japanese holidays such as New Year and Golden Week, when postal volumes are high.
• Track on both Japan Post and your local carrier so you do not miss the handover scan.

Japan Post customer support

For tracking problems, Japan Post customer service can be reached in Japan on 0570-046111, with callers from abroad dialing the +81 country code first. Because the sender holds the contract of carriage, the person who posted the item is usually best placed to open an inquiry or claim.

If you bought from an online seller, contact the seller first, since they can raise a search request with Japan Post and share any updates from their dispatch records.

About Japan Post

Japan Post is the national postal operator of Japan and forms part of Japan Post Holdings, which was established in its current group structure in 2007. Japan's organized postal service dates back to 1871, making it one of the oldest continuous mail networks in Asia.

Today Japan Post handles letters, parcels, and express shipments both inside Japan and to more than 190 countries through its international services. No matter which Japan Post tracking number you hold, you can follow it with the universal tracker on this page.