What should I do if my card is lost or stolen in Japan?

Learn the order of steps after losing a wallet or card in Japan, from calling the issuer to filing a report at a koban and checking lost-property systems.

Published October 20, 2026 at 6:02 PM JST | By Tokyo Paul

Quick answer: Contact the card issuer immediately to freeze or cancel the card, then report the loss at a nearby koban (neighborhood police box) or police station. Lost items in Japan are often handed in, so it is also worth checking with the railway, shop or facility where the item was last seen. Keep issuer phone numbers saved apart from the cards.

The first step: stop the card

The most urgent step is to contact the card issuer. Japan Travel by the Japan National Tourism Organization (JNTO) advises contacting the issuer directly to arrange a replacement if a card is lost or stolen, and its credit card page links to the lost-card contact pages of the major card brands. Most issuers run a 24-hour line for overseas customers, listed on the card, in the issuer's app or on the statement.

When calling, have the card number, if known, and the cardholder's identity details ready. The issuer will usually block the card, review recent transactions and explain how a replacement can be issued abroad. Asking about emergency cash or an emergency card is reasonable, since some issuers offer these services.

If the number is not at hand, use a hotel front desk to find the issuer's website, or call the brand's global service line. JNTO suggests keeping issuer contact numbers separate from the cards for exactly this reason.

Reporting to the police

The next step is a report to the police. A koban is a small neighborhood police box found throughout Japan, and a police station is the alternative. The Tokyo Metropolitan Government's English page on lost and found says that when the place and time of a loss are unknown, a Lost Property Report can be filed at a police box or station, and an English-language report form is available.

Bring a passport or other ID, a description of the item and a note of when and where it was lost. For a theft, the police may take a statement and issue a report number. A report is often useful for card issuers, travel insurers and consulates, though each organization sets its own requirements.

For emergencies, the national police number is 110, and it can be dialed from any phone in Japan. For non-urgent help in English, some police boxes may be able to use translation tools or phone interpreting. The Tokyo page notes that the Lost and Found Center has a multilingual communication panel for foreign visitors.

Finding a lost wallet or bag

Lost items in Japan are often turned in to a koban, a station or a facility, so checking is worthwhile. The Tokyo Metropolitan page explains that if the place is known, the best contact is the railway operator's lost-and-found office or the customer service counter of the shop or amusement facility. If the place is unknown, a Lost Property Report at a koban or police station is the route.

The page also states holding periods for Tokyo. Items brought to a koban or police station are kept for two weeks. Items found on trains or in large facilities are kept for a shorter time, roughly 1 to 4 days depending on the place, and unclaimed items move to the Lost and Found Center, which holds them for a total of three months from the time of the report.

Because these periods may change and can differ outside Tokyo, ask the office about the current rules. Credit cards, cash cards and driver's licenses are among the most commonly found items, according to the same page, which is a useful reminder that wallets do get handed in.

Costs, cash and getting by in the meantime

A lost card can leave a traveler without cash for a few days. Plan for this by keeping a backup card in a separate bag, plus some yen. JNTO describes Japan as a cash-centric country, although cards are widely accepted, so a small cash reserve helps while a replacement is arranged.

Some issuers can send an emergency card to a hotel or a bank branch, or arrange a cash advance. Fees and timing vary, so ask when calling. Travel insurance may help with lost documents or cash, depending on the policy, so check its terms and its claim steps.

If a passport is also lost, the traveler's embassy or consulate in Japan is the contact, and a police report is usually needed. This guide shares general information; rules change, so confirm details with the official agency or provider before you act.

Who needs special care

Solo travelers have no one else to hold a backup card, so splitting cards across bags matters more. Families should keep a spare card with a different adult. Older travelers or those with health needs should keep important cards and documents in a small pouch worn on the body, with a copy of key details stored safely online.

Visitors on cruise or tour itineraries may have limited time at each stop, so reporting quickly is key. A tour guide or the ship's information desk can help find the nearest police box and may be able to act as a point of contact.

Travelers who have lost a phone as well as a card face extra challenges, since many banks send a code by text. Having a second device or email access and a hotel contact number gives more options.

Reporting errors that slow recovery

The biggest mistake is waiting to see if the item turns up before calling the issuer. Calling first and checking later is safer, because a card can be unblocked or replaced if found. Another is not keeping the card details anywhere.

A second mistake is assuming the police cannot help because of a language barrier. Koban staff are used to helping people with all kinds of questions, and the Tokyo page notes that English report forms are available. Pointing to a translation app or writing key details in advance can help.

A third is going to only one place. If an item is lost on a train, the railway office is the first stop, but the koban is the backup. Checking both makes recovery more likely. A fourth mistake is not recording the details of a lost item, such as the date, time and route, which makes searching harder.

Preventing a repeat and following up

Before the trip, note the issuer name for each card, and save the issuer's emergency numbers separately. Carry only the cards needed that day, and keep the rest at the accommodation. Keeping the spare card in a hotel safe or a locked bag, apart from the card carried each day, means a single loss never leaves the traveler without any payment method at all.

Choose bags that close securely, keep wallets in front pockets in crowded stations, and check the seat or table before leaving. Using a transit IC card such as Suica or Pasmo for daily travel also reduces how often the main wallet comes out.

If something goes wrong, calm and quick action works best: call the issuer, report at a koban, check the last location, and keep every reference number. Share the report number with the issuer and the insurer to speed up claims.

Frequently Asked Questions

Where is the nearest koban?

Koban are found near many stations and busy areas, and a map app can search for "police box" or "koban". The Tokyo Metropolitan Government says Tokyo has 825 police boxes. If none is close, a police station or a hotel front desk can point the way.

How long is lost property kept in Tokyo?

The Tokyo page says items at a koban or police station are kept for two weeks, and unclaimed items move to the Lost and Found Center for three months in total. Items found on trains or in large facilities are kept for a few days. Rules elsewhere in Japan may differ, so ask the local office.

Should travelers cancel a card or only freeze it?

It depends on the issuer's options. A freeze is temporary and can be reversed if the card turns up, while cancellation ends the card. If theft is likely, cancellation with a replacement is the usual advice, but ask the issuer which option fits the situation.

Want to go deeper? Tokyo Paul's book Tokyo, Made Simple is available on Amazon.

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