Japan Packing Checklist 2026: Cash, IC Cards, Power Banks
By Alvin LimPublished Updated
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The three things most often left off a Japan packing list are a mix of cash and card, a transit IC card, and an eSIM installed before departure. Power banks need attention too: under the new ICAO-based rules, Japan (from 2026-04-24) and Taiwan (from 2026-04-08) limit passengers to 2 units, carry-on only, with no charging in flight, and each should show its capacity in Wh. Japan also runs on 100V with Type A sockets, so check your plugs before you pack.
Japan packing checklist

| Category | Item | Priority | Notes |
|---|---|---|---|
| Money | Japanese yen in cash | Must | Small eateries and some shrine amulet stalls are still cash-only |
| Money | Credit card with no or low foreign fees | Must | Convenience stores, stations and chain restaurants take cards and contactless |
| Transport | IC card (Suica or ICOCA) | Recommended | Works for trains, buses and convenience-store payments; physical cards are sold in limited numbers at some stations |
| Connectivity | eSIM or pocket WiFi | Must | You need maps and translation apps the moment you land; install an eSIM before departure |
| Power bank | Capacity printed in Wh | Must | Unlabelled power banks may be confiscated at security |
| Power bank | No more than 2 units | Must | ICAO-based rule: Taiwan from 2026-04-08, Japan from 2026-04-24; excess units may not be allowed on board |
| Electrical | Plug adapter | Depends | Japan uses Type A sockets at 100V; US plugs fit, Korean, EU, UK and Australian plugs need an adapter |
| Documents | Passport with sufficient validity | Must | Check your airline's and Japan's requirements before booking |
The rest of the list is the usual travel kit. Anything you forget, from toiletries to umbrellas, is sold at the nearest convenience store.
Money: cash versus card
Japan's reputation as a cash-only country is out of date in the big cities, but not gone.
- Convenience stores, train stations, chain restaurants and drugstores almost all accept cards or phone-based contactless payment. In major cities you rarely need a large amount of cash.
- Shrine amulet stalls, food stalls in traditional markets and some taxis still run on cash. Keep a modest amount of yen in small notes and coins for these.
- You can exchange money at the airport or at banks in the city. City rates are usually slightly better than airport rates, so exchange a small amount before departure or on arrival and top up later rather than carrying a lot at once.
| Where | Card or contactless | Cash |
|---|---|---|
| Convenience stores, stations, chains, drugstores | Yes | Yes |
| Shrine stalls, market food, some taxis | Often no | Yes |
Transit IC cards: Suica and ICOCA
An IC card saves the most time of anything on this list if you change trains often.
- Suica is sold at JR East stations in the Tokyo area and ICOCA at stations in the Kansai region. Both work nationwide on most subways, buses and convenience stores, so one card covers a Tokyo-Osaka trip.
- iPhone users can add a mobile Suica to Apple Wallet and skip the queue for a physical card. Set it up before you leave home.
- Physical cards are sold in limited numbers at some stations, which is another reason to go mobile if your phone supports it.
- You can still travel on paper tickets without an IC card, but with frequent transfers the card is clearly faster.
The rule for the rest of the trip is simple: tap in, tap out, and top up at any station machine or convenience store.
eSIM, power banks and plugs
- To be online the moment you land, install an eSIM before departure. If several people want to share one connection, a rented pocket WiFi router is the alternative.

New power bank rules (2026). After ICAO approved an emergency amendment on 27 March 2026, Taiwan's Civil Aeronautics Administration applied it to flights departing Taiwan from 2026-04-08, and Japan's Civil Aviation Bureau applied it from 2026-04-24 — so it covers your flight home from Japan too:
- Each passenger may carry no more than 2 power banks (up to 160Wh each).
- Power banks go in carry-on only, never checked baggage.
- No charging a power bank during the flight, and no using it to power other devices.
- A power bank with no Wh (watt-hour) capacity marking may be discarded at security.
On flights under Japanese rules, keep power banks with you (seat pocket or bag at your feet), not in the overhead bin. Recount your power banks and check the labels before you leave, and confirm your own airline's policy.
Plugs and voltage. Japan uses Type A sockets (two flat parallel pins) at 100V, 50/60Hz.
| Your devices are from | Plug fits? | Voltage |
|---|---|---|
| US | Yes, no adapter | Fine |
| Korea, EU | Adapter needed | Multi-voltage chargers fine; single-voltage 220V appliances underperform |
| UK, Australia | Adapter needed | Same as above |
Phone, laptop and camera chargers are almost all rated INPUT 100-240V and work with just an adapter. A voltage converter is only worth packing for a single-voltage 220V hair dryer or styler, and a dual-voltage travel model is lighter.
As a next step, a Japan 5G/4G eSIM via KKday — check the live product page for current plans, prices and coupons.
General information only. Confirm details with official agencies and local notices.
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FAQ
How much cash should I bring to Japan?
Not much. Cards and contactless payment are widely accepted in the major cities. Keep a small amount of yen for cash-only situations such as shrine stalls, traditional market food and some taxis.
Where do I buy a Suica card?
At JR East station counters and ticket machines in the Tokyo area; in Kansai the equivalent is ICOCA. iPhone users can add a mobile Suica to Apple Wallet before the trip and skip the queue.
eSIM or pocket WiFi for Japan?
For solo travellers and couples an eSIM installed before departure is the simplest option. For a larger group sharing one connection, a rented pocket WiFi router can work out cheaper. If you need data on landing, the eSIM is ready before you board.
Can I take a power bank on the plane?
Yes, in carry-on only. Under the ICAO-based rules in force in Taiwan (from 2026-04-08) and Japan (from 2026-04-24), passengers are limited to 2 units, may not charge them in flight, and units without a Wh capacity label may be confiscated at security. Check your own airline's policy before flying.
Do I need a voltage converter in Japan?
Almost never for electronics. Japan runs on 100V with Type A sockets, and chargers rated 100-240V work with just a plug adapter. Only a single-voltage 220V appliance such as a hair dryer would need a converter.
Sources
- Japan National Tourism Organization (JNTO)
- Taiwan Civil Aeronautics Administration - passengers limited to 2 power banks from 8 April
- Japan National Tourism Organization (JNTO) - Electricity & plugs
- Japan MLIT Civil Aviation Bureau — New power bank carry-on rules from 24 April 2026 (press release, Japanese)
Alvin LimRuns Alvin Travel
Tour guide for 5 years: a Chinese- and English-language guide in Korea, now a certified Korean-language guide in Taiwan. Based in Taipei and studying for a master's degree at National Taiwan University (NTU).
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