First Time Buying a Car in Japan? Read This First

If you've just landed and everyone keeps using words like shaken, JCI, and shako shomei, you are exactly where almost every one of our customers started. Buying your first car in Japan is not difficult. It's just built on a system nobody explained to you, in a language you're still learning, during the busiest few weeks of your move.

This page is the orientation. It won't make you an expert — it'll tell you what actually matters, in what order, and where to go for the detail once you're ready for it.

The three-minute version

If you read nothing else, read this.

1. You cannot drive on your stateside license. SOFA-status personnel drive on the USFJ Form 4EJ — the SOFA license — issued by your base. Start this first; everything else waits on it.

2. Cars here come with an inspection clock. Japan requires a safety inspection called shaken, and how much time is left on it is the single biggest hidden variable in what a used car costs you.

3. You need to prove where you'll park it. Live on base or close to it and this is usually a non-issue. Live further out and there's a police certificate involved.

4. There are two registrations, not one. The Japanese authorities register the car, and separately your base registers it. Both have to happen.

5. Insurance comes in two layers. The compulsory one (JCI) is not enough on its own, and your base requires more.

6. Almost none of this has to be done by you. A dealer who works with military customers handles the Japanese-language legwork. Your part is the license, the insurance policy, and choosing the car.

A heads-up from our lot: the customers who find this stressful are almost always the ones who started late. The ones who walk in during their first week — even just to look — tend to describe the whole thing afterwards as easier than expected. Nothing here is hard. It's just sequential.

First, an honest question: do you actually need a car?

We sell cars, so take this with the appropriate pinch of salt — but we'd rather you buy the right thing than the wrong one.

You probably don't need one immediately if you live on base at Yokosuka, work on base, and are comfortable with trains. Japan's rail network is genuinely excellent, and central Yokosuka is walkable. Plenty of single sailors go months without a car.

You probably do want one if you have kids, live off base, are stationed at Iwakuni, or want to actually see Japan on your weekends. Outside the big cities, a car is the difference between a tour where you visited three prefectures and one where you visited fifteen.

There's no wrong answer, and it's worth deciding deliberately rather than by default.

Your first month, roughly

Every arrival is different and base schedules vary, but this is the shape of it for most people.

The two things most likely to stretch this timeline are a delayed license exam and a parking certificate that started late. Both are avoidable.

The words nobody explains

You'll hear all of these in your first week. Here's what they actually mean.

That is most of the vocabulary. It stops being intimidating within about a week.

The four decisions you'll actually make

Everything else is process. These four are genuinely yours.

1. Kei car or regular car?

A kei car (660cc or less, yellow plate) is the cheapest way to own a car in Japan — flat low road tax of around ¥10,800 a year, cheaper inspection, easier parking, better fuel economy. If you're one or two people, especially in Yokosuka where parking is tight, it's often the smart answer.

A regular car (white plate) costs more across every line — road tax runs from roughly ¥25,000 to ¥57,000+ a year depending on engine size — but gives you space, highway comfort, and more safety equipment. Families usually land here.

2. With shaken, or without?

A car sold with fresh inspection costs more up front and spares you a bill soon. A car sold without it looks cheaper until you add roughly ¥100,000–¥200,000 for a standard passenger car. On a three-year tour, the maths usually favours buying with time left on the clock. Always ask for the expiry date.

3. On base or off base?

This decides whether you need a parking certificate. On base, or within roughly 2 km of the installation, and you typically don't. Further out and you'll need one from the local police — which takes a few days, because they physically inspect the space.

4. Who you buy from

You can buy privately, from a Japanese dealer, or from a dealer who specializes in military customers. The difference isn't the car — it's whether someone handles the Japanese-language paperwork, understands your base's process, and is still there when you need a repair or want to sell before you PCS out.

What it costs, realistically

Beyond the purchase price, budget for:

• Road tax, annually around April — roughly ¥10,800 for a kei car, ¥25,000–¥57,000+ for a regular car

• Shaken every two years — around ¥100,000–¥200,000 for a standard passenger car, less for a kei

• Weight tax, paid at inspection, based on the vehicle's weight

• Liability insurance premiums, which vary by driver and coverage

• Parking, if you live off base

• Fuel, maintenance, tolls — an ETC card makes expressways far easier

These are ranges, not quotes. Your real numbers depend on the specific car, and any decent dealer will give you the full breakdown before you commit. Worth knowing: cars over about 13 years old (gasoline) can attract a higher road-tax rate, which is often why an unusually cheap car is unusually cheap.

What first-timers worry about — and what actually matters

"I have to drive on the left." True, and it takes about a week. The steering wheel and mirrors flip with the road, so it's more intuitive than it sounds. Roundabouts and right turns across traffic are the parts that need conscious thought at first.

"I don't speak Japanese." For the paperwork, this genuinely doesn't matter if your dealer handles it. For daily driving, road signs follow international conventions and your base driving course covers the Japanese specifics.

"What if it breaks down?" Ask about after-sale support before you buy, not after. We keep loaner cars for exactly this. JAF is the national roadside assistance service, and some insurance policies include cover.

What actually matters more than any of the above: Japan's drink-driving laws are far stricter than what you're used to. The limit is 0.03% BAC, penalties are severe, and passengers who knowingly ride with an impaired driver can also be prosecuted. This is the one thing on this page worth reading twice.

Where to go next

This page is the map. Here are the detailed guides:

• Can U.S. Military Personnel Drive in Japan? The SOFA License, Explained — start here, because everything waits on it

• How to Buy a Used Car in Japan: A Step-by-Step Guide for U.S. Military — the full process, in order, from license to base decal

• What Is Shaken (JCI)? Japan's Vehicle Inspection Made Simple — what it costs and why the expiry date matters (coming soon)

• Car Insurance in Japan: What U.S. Military Need — JCI vs. liability, and what your base requires (coming soon)

• Parking Certificate (Shako Shomei): Do You Need One? — the 2 km rule explained (coming soon)

• Kei Car vs. Regular Car: Which Is Right for You in Japan? — the cost comparison in full (coming soon)

• The Real Cost of Owning a Car in Japan — taxes, inspection, insurance, running costs (coming soon)

And when your tour ends: How to Sell Your Car Before You PCS Out of Japan (coming soon) — worth reading early, because remaining shaken affects what your car is worth.

Yokosuka or Iwakuni?

The national rules are the same everywhere in Japan. What differs is your base's process.

At Yokosuka, your SOFA license comes from the CFAY Safety Driver's License Office and base registration runs through CFAY Security's Vehicle Registration Office. Parking certificates go through Kanagawa Prefectural Police. Space is tight here, which is why kei cars are so popular.

At MCAS Iwakuni, MCCS Driver Education handles courses and testing while PMO Pass & Registration issues the license and registers vehicles. Parking certificates go through Yamaguchi Prefectural Police, and Iwakuni requires both JCI and secondary liability insurance before you can operate a SOFA-plated vehicle. A car is closer to a necessity here than at Yokosuka.

Base requirements change. Confirm current details with your installation before you finalize anything.

Frequently asked questions

You don't have to figure this out alone

Every person reading this is somewhere in their first few weeks in a new country, working through a list that didn't exist a month ago. It gets much simpler once someone walks you through it in your own language.

At Yoko Drive, that is the entire job. Inspected cars, direct auction sourcing if you want something specific, and the registration, parking certificate, JCI, and base paperwork handled end to end in English. Free delivery to base, loaner cars, in-house repairs, and buy-back when your tour ends.

Come and look around with no pressure — browse our current inventory, see what we handle for you, read the rest of our PCS and newcomer guides, learn more about us, or get in touch and we'll talk you through it.

Sources & official references

Base processes vary and requirements change — always confirm current details with your installation's VRO, PMO, or driver's license office. This guide draws on the following official Japanese government and U.S. military sources:

• CFA Yokosuka Driver's License Office — SOFA license (USFJ Form 4EJ) issuance and prerequisites

• CFA Yokosuka Vehicle Registration Office — base registration, 2 km parking rule, decal and DD Form 430

• MCAS Iwakuni PMO — Pass & Registration — Iwakuni licensing and registration

• MCCS Iwakuni Driver Education — driver's-ed courses and testing at Iwakuni

• MLIT — Compulsory Automobile Liability Insurance FAQs — JCI/CALI scope and coverage caps

• Kanagawa Prefectural Police — Application for Parking Place Certificate — shako shomei process

• MLIT — Motor Vehicle Inspection — inspection certificate validity periods

• NALTEC — Category of Vehicle Inspection — initial and renewal inspection intervals

• Aichi Prefecture — Automobile Tax overview (PDF) — automobile tax by engine size

• Hokkaido Prefectural Police — Traffic Regulations in Japan — speed limits, drink-driving penalties, child seats

• Japan Automobile Federation (JAF) — traffic rules, foreign licenses, roadside assistance

• U.S. Embassy & Consulates in Japan — Driving in Japan — driving rules for U.S. citizens

This guide is for general information only and is not legal or financial advice. Costs are approximate ranges and depend on the specific vehicle.