Getting Prepared: The Essential Checklist

Rather than one long list, it helps to think about Japan prep as a timeline. Some tasks need weeks of lead time, others take five minutes the night before you fly. Here's a step-by-step guide broken down by how far out you are from departure, so you always know what's genuinely urgent and what can safely wait.

Three months before

• Confirm your passport is valid for your full stay and renew it now if it's borderline — passport offices are far less stressful three months out than three weeks out.
• Check your visa requirement for your specific nationality and length of stay.
• Book flights and, if your dates fall in cherry blossom season, autumn foliage, or Golden Week, start looking at accommodation early since demand is highest in these windows.
• Start roughing out your route — how many cities, how much time in each — so later decisions (like a rail pass) have something to be based on.

One month before

Related: BeforeYouGoToJapan - Essential Steps for a Smooth Trip.

• Buy travel insurance.
• Decide on your rail pass (national or regional) based on your now-firmer route, and buy it if it needs to be purchased before arrival.
• Book any restaurants, ryokan stays, or experiences that require advance reservations.
• Register on Visit Japan Web once your itinerary is locked in.
• Check whether any regular medications need import paperwork before you travel with them.

Two weeks before

• Notify your bank and card provider of your travel dates.
• Order your eSIM or reserve a pocket wifi device.
• Download a transit app and a translation app, and grab offline language packs.
• Set up an IC card in your phone's wallet if your device supports it.
• Exchange some cash or confirm your card works for fee-free ATM withdrawals.

The final week

See also: BeforeYouGoToJapan - Essential Steps for a Seamless Travel Experience.

• Learn a handful of basic phrases and etiquette points — quiet on trains, no tipping, shoes off where indicated, rubbish carried rather than binned.
• Check the weather forecast for your destination and pack layers accordingly rather than relying on a generic seasonal guess.
• Save all your bookings (flights, hotels, train reservations) somewhere accessible offline.
• Pack comfortable, easy-to-remove shoes and a portable phone charger — both get more daily use than most first-timers expect.

The day before and day of travel

• Screenshot your Visit Japan Web QR codes in case you lose signal at the airport.
• Confirm your transport plan from the arrival airport to your first night's accommodation, especially if you're landing in the evening.
• Charge everything, and put your passport, insurance details, and first night's booking confirmation somewhere you can reach without digging through your whole bag.

Building in a buffer, not just a deadline

Wherever possible, aim to finish each stage a few days ahead of its listed window rather than exactly on it. Passport renewals occasionally take longer than the standard processing time; insurance quotes sometimes need a follow-up question answered before the policy is finalised; eSIM activation can throw up a rare compatibility issue that's easier to troubleshoot with a week of slack than with two days left before departure. None of these are common problems, but a small buffer at each stage means an uncommon problem doesn't turn into a genuine crisis right before you fly. Building this margin in costs nothing beyond starting the relevant task a few days earlier than the timeline above technically requires.

Doing things in this order isn't arbitrary — tasks like visas, insurance, and reservations have processing times or availability windows outside your control, so they need to happen early. Tasks like downloading apps or packing are entirely within your control and can safely wait until the final week. Trying to do everything at once in the last few days is the single biggest reason people arrive feeling under-prepared.

This staged approach is exactly the kind of structure Before You Go To Japan is designed around — breaking an overwhelming-sounding task into a series of small, well-timed steps rather than one giant list to get through in a weekend.

Not everyone gets three months of lead time — sometimes a trip comes together in a few weeks. If that's your situation, don't try to force the full timeline; instead, triage. Check your visa and passport status immediately, since these have the least flexibility. Book accommodation next, especially for peak-season dates, since availability (not price) is the real constraint. Everything else on this list — insurance, connectivity, apps, packing — can genuinely be compressed into a single focused weekend if it has to be, since none of it depends on anyone else's processing time.

A few common timeline mistakes are worth watching for regardless of how much lead time you have:

• Leaving the rail pass decision until the final week, after accommodation and popular reservations are already locked in around a route that no longer makes sense for the pass.
• Buying travel insurance so close to departure that it doesn't cover pre-trip cancellation, which some policies only include if bought within a certain window of your original booking.
• Assuming Visit Japan Web registration is a five-minute afterthought and leaving it until the airport, when it's much easier to complete calmly at home with your documents in front of you.

If you're short on time and can only follow a compressed version of this timeline, prioritise the two tasks with real lead times and real consequences if missed: your visa/passport status and your accommodation bookings for peak season. Everything else can be compressed into the final week if it has to be, and the sequence above still works — it just happens faster.