A Collector’s Guide to the Coins of Japan 2026
Posted by: Ian Stainton • 21 Jul 2026
You get back from Japan, empty your pockets, and find the usual mix. A few 1 yen pieces, some 5 yen and 100 yen coins, maybe a 500 yen coin or two, plus notes folded into a side pocket of your suitcase. Then you try the obvious route. Your bank won't take the coins. A high street bureau might look at the notes, but the loose change is another matter.
The practical answer is simple. If you want to exchange foreign coins, exchange foreign coins and notes, or deal with leftover foreign currency from Japan in the UK, a specialist currency service is usually the easiest route. It's built for the kinds of items banks often refuse, including coins, mixed bags of notes, and older or withdrawn currency. If you also have unusual Japanese coins, it's worth checking them before sending them anywhere, because some pieces carry value beyond face value.
Quick answer: UK banks usually won't handle Japanese coins. A specialist service is the straightforward way to convert foreign coins and banknotes, especially if you've got mixed denominations, old notes, or unsorted travel money.
What to Do With Leftover Japanese Yen Coins
Individuals holding Japanese yen in the UK commonly find themselves in one of three situations. They've come back from holiday with change, they've found old travel money in a drawer, or they've inherited a mixed foreign coin collection and noticed some Japanese pieces in it.
The first step is to separate spendable travel money from collectible or older currency. Japan currently uses six coin denominations in circulation, and if your coins are modern yen, they can usually be handled as exchangeable foreign currency by a specialist service rather than a collector dealer. If the coins look much older, or don't appear to match modern denominations, pause before bundling everything together.
The simplest route in the UK
Generally, the practical options are:
- Try your bank for notes only: Some banks may consider current foreign banknotes, but coins are usually the sticking point.
- Use a specialist exchange service: This is the better fit if you need to convert foreign coins and banknotes together.
- Donate foreign coins to charity: Useful if the value is modest and you want a simple clear-out.
What doesn't work well is carrying loose yen around from branch to branch hoping someone will take it. That's time-consuming, and it rarely solves the coin problem.
Before you exchange anything
Check these points first:
- Look for mixed contents: Japanese bags often contain both coins and notes, and specialist services can usually process both together.
- Don't discard the low denominations: Small coins still form part of the total when you exchange leftover currency.
- Set aside anything unusual: Odd designs, older pieces, or misaligned coins may need a second look.
If your aim is convenience, the best route is usually the one that accepts current coins, notes, and withdrawn currency in one go, with no need to sort every item by hand.
A Guide to Identifying Current Japanese Coins
Japan currently has six denominations of coins in circulation: 1 yen, 5 yen, 10 yen, 50 yen, 100 yen, and 500 yen, with the 500 yen coin being the highest value and most commonly held by travellers as leftover currency, as noted in this guide to Japan's current coin denominations.
This is the part most UK travellers need. If you can identify what you have, you can decide whether it belongs in a normal exchange batch or whether it deserves a closer look.
The six current coins at a glance
The easiest markers are the hole, the colour, and the size.
- 1 yen is the light, pale coin.
- 5 yen has a central hole and a gold-toned look.
- 10 yen is darker and coppery.
- 50 yen also has a hole, but it's silver-toned.
- 100 yen is silver-toned without a hole.
- 500 yen is the large high-value coin that often turns up in leftover holiday money.
If you want a closer denomination guide, the five yen coin identification page is a useful reference point for one of the most distinctive coins in the set.
Current Japanese Yen Coin Specifications
| Value | Diameter | Weight | Composition | Key Feature |
|---|---|---|---|---|
| 1 yen | N/A | N/A | Lightweight aluminium | Plain pale appearance |
| 5 yen | N/A | N/A | Brass | Central hole |
| 10 yen | N/A | N/A | Bronze | Temple design |
| 50 yen | N/A | N/A | Cupronickel | Central hole |
| 100 yen | N/A | N/A | Cupronickel | Silver-toned, no hole |
| 500 yen | 26.5 mm | 7.0 g | 72% Cu, 20% Zn, 8% Ni | Largest standard coin |
The detailed size and alloy specification for the current 500 yen coin comes from Japan's Ministry of Finance announcement covering the updated series and anti-counterfeiting design in the official 500 yen coin release information.
Practical ways to sort them
Start with the coins that have holes. That immediately separates 5 yen and 50 yen from the rest. Then split by colour. Brass-toned usually means 5 yen, coppery means 10 yen, and silver-toned coins are generally 50 yen or 100 yen unless you're looking at the larger 500 yen.
A handful of unsorted yen looks confusing at first. In practice, hole first, colour second, size third is the quickest way to identify most mixed Japanese coin batches.
If all you want is to exchange foreign coins and notes, this level of sorting is usually enough. If a coin seems wrong for its type, keep reading before you send it off.
Valuable Coins Beyond Their Face Value
Not every Japanese coin should be treated as simple spending money. Some old pieces belong to earlier monetary systems, and some modern coins gain value because of how they were made, not because of the amount printed on them.
Japan's modern decimal yen system was formally established on 27 June 1871 through the New Currency Act, which defined the yen as 1.5 grams of gold or 24.26 grams of silver and divided it into 100 sen and 1,000 rin, replacing the previous Tokugawa base-4 system. That shift is outlined in the history of the Japanese yen and its decimal system. In plain terms, if pre-yen era coins turn up in an old collection, they sit in a different category from modern leftover travel money.
Error coins that UK holders often miss
The most overlooked area is the misaligned coin. Japanese coins with a surface-to-reverse misalignment of 30° or more are recognised as manufacturing errors and can fetch significant premiums, according to this specialist discussion of Japanese coin misalignment errors.
That matters because mixed travel change often gets treated as bulk value only. A coin that looks slightly off may be worth checking before it's thrown into the standard exchange pile.
What to look for
- Front and back don't line up properly: Turn the coin over vertically and compare both sides.
- Clear rotation rather than slight wobble: Minor wear is one thing. A strong offset is another.
- Near-right-angle alignment issues: These are the examples collectors usually notice fastest.
Practical rule: If the design on one side looks noticeably rotated against the other, don't assume it's damage. It may be a minting error.
Older pieces and commemoratives
Some collections also include older denominations linked to the old sen and rin structure, or commemorative coins kept as souvenirs. These shouldn't automatically be treated as standard exchange currency.
One historical example often overlooked is the post-war brass 1-yen coin introduced in 1948, of which exactly 451,170,000 pieces were minted before production ceased in 1950, as recorded in the history of the 1 yen coin. That doesn't mean every old 1-yen coin is rare in practice, but it does show why older Japanese pieces deserve at least a basic check.
Why UK Banks and Bureaus Wont Exchange Coins
Many travellers encounter a similar difficulty. Banks and exchange counters are designed around notes, not sacks of mixed foreign metal.
Coins create several practical problems. They're heavy to move, awkward to count, expensive to sort, and hard to redistribute. A branch that accepts a foreign note can often pass it into a wholesale notes channel. A bag of Japanese coins is different. Someone has to verify it, sort it, package it, and find a route for it.
Why coins fall outside the normal system
High street providers usually avoid foreign coins for reasons that are operational, not personal:
- Low handling efficiency: Coins take longer to process than notes.
- Storage and shipping issues: Metal is bulky and costly to transport.
- Limited recirculation demand: UK customers rarely need Japanese coins specifically.
- Machine compatibility: Coins from different series may need more careful handling.
That last point matters with Japanese currency. The bimetallic 500-yen coin was updated in 2021 with enhanced anti-counterfeiting features and a new edge design, which affects machine readability and sorting efficiency for UK-based exchange services handling bulk currency, as covered earlier from Japan's Ministry of Finance.
What works better
A specialist foreign currency processor is built around exactly the things banks tend to reject:
- mixed coin lots
- coins plus notes in one package
- withdrawn banknotes
- unsorted travel money
- charity collections and business deposits
That's why people looking to exchange leftover currency often get further with a dedicated service than they do with a bank branch or airport desk.
How to Exchange Japanese Coins and Notes From The UK
The practical process should be simple. If it isn't, the yen is often returned to a drawer, forgotten for another year.
A proper specialist service should let you send coins, banknotes, and withdrawn currency together. It should also avoid forcing you to sort every item into neat little denomination piles before you begin.
Step by step process
Gather everything together
Put all your Japanese currency in one place. Include loose coins, wallet notes, older notes, and any mixed foreign money you also want to clear out.Get a quote online
A specialist platform should show you rates before you send anything. If you want to exchange foreign coins and notes, the important feature is that the service can handle mixed submissions rather than notes only.Package the currency securely
You shouldn't need to sort every coin. That matters if your yen is mixed with other holiday money or business collections.Send it by post
This is usually easier than trying to visit multiple branches that may still reject the coins when you arrive.Receive payment after verification
According to the publisher information, payment is issued within five working days after verification, via bank transfer or PayPal.
What makes the process easier
Used properly, this route solves the common friction points:
- No need to sort coins by hand
- Coins and notes can go together
- Withdrawn or obsolete currency can still be checked
- It suits individuals, charities, and businesses
Send the whole batch, not just the notes. That's the difference between clearing the drawer properly and leaving the awkward part behind.
This is also why specialist services are widely used by organisations that receive odd foreign money through donations, tills, airport collections, and public-facing counters. They're designed for the messy reality of mixed currency, not the ideal case of crisp current banknotes only.
Common Mistakes to Avoid With Leftover Japanese Yen
Most lost value comes from small avoidable errors, not dramatic decisions. People either assume the coins aren't worth the effort, or they treat everything as ordinary change when some of it may need checking first.
Mistake one and mistake two
Throwing small coins away
This is common with 1 yen and 5 yen pieces. They look minor on their own, but they still form part of the total when you exchange foreign coins in bulk.Assuming old Japanese currency is worthless
Older coins, older notes, and withdrawn series don't always belong in the scrap category. Some are still exchangeable through specialist channels. Others may have collector interest.
Mistake three and mistake four
Missing an error coin in a mixed batch
If a coin looks off-centre or oddly rotated, don't ignore it. As covered earlier, visible misalignment can matter.Separating only the notes and leaving the coins behind
This is what happens when people rely on banks or standard bureaus. They exchange what's easy and keep the awkward part forever.
A quick checklist before you send yen
Run through this:
- Check for obvious unusual pieces: Older designs, commemoratives, and rotated strikes deserve a second look.
- Keep mixed currency together if the service accepts it: That's far easier than trying to sort everything denomination by denomination.
- Don't wait indefinitely: Exchange rates move over time, and forgotten travel money rarely becomes easier to deal with later.
- Consider charity if convenience matters more than payout: Many people prefer to donate foreign coins to charity rather than hold onto them.
A good exchange process removes the need to choose between convenience and completeness. You should be able to clear coins, notes, and older currency in one pass.
Turning Unused Yen into Value Real World Examples
The most useful way to think about Japanese currency in the UK is by situation, not by denomination.
The family holiday drawer
A couple comes back from Japan with coins in jacket pockets, notes in a travel wallet, and one pouch of mixed foreign money from previous trips. They want to exchange leftover currency without splitting everything into separate jobs. A specialist service suits this because it can deal with the mixed bundle rather than only the neat, current notes.
The charity collection tin
A local charity receives foreign coins through shop counters, event buckets, and public donations. Japanese yen appears often enough to matter, but there's no clear, UK-specific data on the volume of Japanese yen coins held by UK residents, which makes campaign planning harder, according to this summary on money in Japan and the UK data gap. In practice, charities still benefit from having a route to convert whatever arrives, rather than trying to forecast exact volumes.
The business till problem
Retailers, attractions, airports, and other businesses regularly receive foreign coins in error or as informal donations. They don't want staff spending time deciding what is current, what is withdrawn, and what should be sent elsewhere. That's where a specialist process earns its keep. It's simple, consistent, and manageable at scale.
For some users, the best outcome is cash back. For others, it makes more sense to donate foreign coins to charity and turn dormant travel money into something useful.
Frequently Asked Questions About Japanese Coins
Can I exchange Japanese coins in the UK
Yes, but usually not through ordinary high street routes. Banks and many exchange bureaus focus on notes. Specialist services are the more practical option if you want to convert foreign coins and banknotes together.
Do banks accept 1 yen and 5 yen coins
Usually, foreign coins are where banks stop. That includes low-denomination Japanese coins. If your leftover money includes coins as well as notes, a specialist exchange route is generally more suitable.
Is old Japanese currency still worth anything
Sometimes, yes. Japan's modern decimal yen system was established in 1871, replacing a more complex feudal system, which matters when old pre-yen pieces appear in inherited collections or old travel lots. Older material may have exchange value, collector value, or both.
Can I exchange Japanese notes and coins in the same transaction
With a specialist service, yes. That's one of the main advantages over traditional exchange counters. You can often send mixed currency without separating every item.
How long does payment take
According to the publisher information for the service behind this article, payment is issued within five working days after verification.
Do I need to sort Japanese coins before sending them
Not necessarily. A specialist foreign currency service may accept unsorted currency, which is much easier if you've got a mixed pot of travel change.
Can withdrawn Japanese currency still be exchanged
In many cases, it can still be checked by a specialist service even when banks won't touch it. That's especially useful for old notes or coins found in collections.
Can I donate Japanese coins instead of exchanging them for myself
Yes. If you'd rather turn small amounts of leftover foreign currency into something useful, donating the value to charity can be a practical alternative.
If you've got Japanese yen sitting in a drawer, wallet, charity tin, or business collection box, the easiest next step is to use We Buy All Currency to exchange foreign coins, notes, and older currency in one straightforward process. It's a simple way to convert leftover travel money without relying on banks that won't handle the coins.