How to Buy a Used Car in Japan: A Step-by-Step Guide for U.S. Military

Buying a used car in Japan as U.S. military isn't hard — it's just unfamiliar. The car itself is the easy part. What throws most people is everything wrapped around it: a SOFA license, compulsory insurance, a safety inspection called shaken, a police parking certificate, registration with the Japanese authorities and with your base. Each one has its own office, fee, and timing, and several exist only in Japanese.

The good news: the sequence is predictable, and a dealer who works with military customers every day handles most of it for you. Here's the whole process, in order.

Before you start: the two things that are genuinely yours to do

Almost everything in this process can be handled for you. Two things can't:

• Your SOFA license (USFJ Form 4EJ). You have to sit the exam and pick it up yourself.

• Your liability (voluntary) insurance. Your base requires it, and the policy has to be in your name.

Everything else — parking certificate, JCI, inspection, Japanese registration, ownership transfer, VRO/PMO submissions — is legwork a dealer like us does on your behalf.

A heads-up from our lot: the single biggest delay we see isn't paperwork, it's people starting late. Arrival briefings, the license exam, and a parking certificate all have their own lead times. Start the license step in your first week and the rest falls into place.

Step 1: Get road-legal with your SOFA license

You can buy a car before you're licensed, but you can't drive it. As SOFA-status personnel, the only operator's permit you're authorized to use is the USFJ Form 4EJ — the SOFA license — issued by your installation, not by a Japanese DMV.

In short: finish your arrival briefings, bring a valid U.S. license or International Driving Permit, pass the written exam at 80% or higher, and collect your 4EJ. It's issued for up to four years. Note that an IDP alone will not let you drive a SOFA-plated vehicle.

We've written the full breakdown here: Can U.S. Military Personnel Drive in Japan? The SOFA License, Explained.

Step 2: Choose the right car for your tour

Most tours run about three years, which changes the math compared with buying at home. You're not buying a car for a decade — you're buying the right car for a specific posting, with a resale or buy-back at the end.

Three questions decide it for most buyers:

How many people, and how much space? Singles and couples usually do best in something small and economical. Families need seats, and often a second row that fits car seats comfortably.

Where will you park it? This is a bigger factor in Japan than in the U.S. On-base spaces and off-base lots can be tight, and older neighborhood streets are narrow. A smaller car genuinely makes daily life easier, especially around Yokosuka.

How long is your tour, and what's the car's shaken status? More on that in Step 3 — but a car with plenty of inspection time left is worth more to you than the sticker price suggests.

Kei car or regular car?

Kei cars are the cheapest way to own a car in Japan across every line — tax, fuel, inspection, parking. Regular cars cost more to run but make more sense for families and long expressway trips. (Source: Aichi Prefecture automobile tax overview.)

One pleasant surprise

Japanese used cars are often lightly driven and carefully maintained. It's normal to find cars here with mileage that would look implausible on a U.S. lot for the same model year — a real advantage when you're buying used on a short timeline. Always ask to see the maintenance history.

Step 3: Check the shaken and JCI status before anything else

Shaken (車検) is Japan's mandatory vehicle inspection — brakes, lights, emissions, alignment, modifications. It's the single biggest variable in what a used car really costs you.

• A new car gets its first inspection after 3 years, then every 2 years after that.

• In our experience, shaken for a standard passenger car handled through a dealer or shop typically runs around ¥100,000–¥200,000 (roughly $700–$1,400), covering the inspection, compulsory insurance for the period, weight tax, and any repairs needed to pass. Your actual cost depends on the car's size, weight, age, and condition.

• You cannot legally drive a car whose shaken has expired. It has to be re-inspected first — often transported to the shop rather than driven.

Sources: MLIT — Motor Vehicle Inspection; NALTEC — Category of Vehicle Inspection.

What this means when you're comparing two cars: a car sold with fresh shaken costs more up front but spares you a large bill soon. A car sold without it looks cheaper until you add the inspection. Ask for the shaken expiry date on every car you're considering, and factor the remaining months into the price — that time has real, transferable value when you sell before you PCS out.

Step 4: Sort out your parking

Japan requires you to prove you have somewhere legal to keep your car. The document is the shako shomei sho — a parking certificate issued by the local police, confirming a designated space within a 2 km straight-line radius of your registered address.

For military buyers there's an important shortcut:

• Living on base, or within roughly 2 km of the installation? The base VRO typically does not require a separate police parking certificate.

• Living off base and farther than 2 km? You'll need the police parking certificate, plus a copy of your parking-space rental agreement.

The application takes an application form, a map to the space, and proof you're allowed to use it. The police physically inspect the spot, and the certificate usually comes back in 3–7 days, with a fee of around ¥2,100 depending on the prefecture. Kei cars usually file a storage-location notification after registration instead, though some dense areas require proof up front.

We obtain the parking certificate from the police for our customers, which removes both the language barrier and the guesswork about which station has jurisdiction. (Sources: Kanagawa Prefectural Police — Parking Place Certificate; CFAY Security VRO — When You Buy a POV.)

Step 5: Arrange your insurance — both layers

Japan has two layers of car insurance, and SOFA drivers need both.

JCI / CALI (compulsory). Every vehicle must carry it. It covers bodily injury or death to other people only — nothing for your own car, nothing for property damage, nothing for you. Caps are set nationally: up to ¥30 million for death, ¥40 million for permanent disability, ¥1.2 million for injury per victim. It's sold in terms tied to the shaken period and renewed alongside it. (Source: MLIT — Compulsory Automobile Liability Insurance FAQs.)

Voluntary liability insurance (required by USFJ). This is the layer that actually protects you. JCI pays nothing toward the other driver's car, a guardrail, or a wall — and one serious accident can far exceed its caps. USFJ requires SOFA vehicles to carry liability coverage on top of JCI, and your base won't complete registration without proof of it. MCAS Iwakuni's published requirement is ¥30,000,000 bodily injury and ¥3,000,000 property damage; minimums are set by policy and can differ, so confirm the current figures with your own installation before you buy a policy. AIG and Chubb both write policies for U.S. Forces personnel in Japan, and there's a contracted provider on base.

This one's on you — we'll tell you exactly what proof the VRO needs, but the policy has to be in your name. (Source: MCAS Iwakuni Drive Safe Pamphlet (PDF).)

Step 6: Japanese registration and plates

Now the car gets registered on the Japanese side. Which office depends on the plate:

• Regular (white-plate) cars — the Land Transport Office (LTO / Un'yu Kyoku). Parking certificate required first.

• Kei (yellow-plate) cars — the Light Motor Vehicle Inspection Organization (LMV / kei office).

This step covers ownership transfer, JCI registration, taxes, and your plates. It's entirely in Japanese, and it's the part we handle end to end — you don't need to visit the LTO yourself.

Step 7: Register the car with your base

Japanese registration is only half of it. SOFA vehicles also need base registration: your installation's Vehicle Registration Office (Yokosuka) or PMO Pass & Registration section (Iwakuni) runs a base safety inspection and issues your registration decal (USFJ Form 15A/15B) and DD Form 430.

Bring your SOFA license, status documents, Japanese registration, JCI certificate, and proof of liability insurance. If you're a dependent, the car generally registers in your sponsor's name unless the sponsor grants a power of attorney.

We prepare and submit the VRO/PMO paperwork so this becomes a short appointment rather than a project. (Sources: CFA Yokosuka Vehicle Registration Office; MCAS Iwakuni PMO — Pass & Registration.)

Documents you'll need

Requirements vary by base, by white plate vs. kei, and by whether you live on or off base — treat this as the typical set and confirm with your VRO or PMO.

What it costs to own the car

The purchase price is only part of the picture. Budget for:

• Road tax, billed annually around April — a flat ¥10,800 or so for a kei car, or roughly ¥25,000–¥57,000+ for a regular car depending on engine size.

• Weight tax, paid at shaken, based on the vehicle's weight band.

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

• Voluntary insurance premiums, which vary by driver and coverage.

• Parking, if you live off base.

• Fuel, maintenance, tolls (an ETC card makes expressways much easier), and optionally JAF roadside assistance.

Note that older cars — typically 13+ years for gasoline vehicles — can attract a higher road-tax rate, so factor that in when a bargain looks unusually cheap. All of these are ranges: your real numbers depend on the specific car, and we'll give you a full breakdown before you commit.

Yokosuka and Iwakuni: what's different

The national rules — JCI, shaken, taxes, road law — are identical everywhere in Japan. The base process differs base to base.

Buying at Yokosuka (CFA Yokosuka)

Your SOFA license comes from the CFAY Safety Driver's License Office (Bldg. J196), and base registration runs through the CFAY Security Vehicle Registration Office. Off-base residents more than 2 km out need a parking certificate from Kanagawa Prefectural Police.

Yokosuka is dense and coastal, and parking is at a premium — one reason kei cars are so popular here. Many sailors live on base, at Ikego, or just outside the gate. Our main branch is in Yokosuka, which means we know the CFAY sequence and can deliver to base.

Buying at MCAS Iwakuni

Iwakuni splits the process: MCCS Driver Education handles courses and testing, while PMO Pass & Registration issues the SOFA license and registers vehicles. Parking certificates go through Yamaguchi Prefectural Police. Iwakuni also requires JCI and secondary liability insurance before you can operate a SOFA-plated vehicle, and an IDP is explicitly not accepted.

Iwakuni is a smaller city than Yokosuka, and a car is closer to a necessity than a convenience — for groceries, weekend trips, and getting around Yamaguchi. Our Iwakuni branch exists so you're not shipping a car in from a dealer several hours away.

Base requirements, course hours, and fees change. Always confirm current details with your installation's VRO or PMO before you finalize anything.

Common mistakes to avoid

• Waiting until you're licensed to start looking. Choosing the car early lets the paperwork run in parallel.

• Ignoring the shaken expiry date. A cheap car with two months of inspection left isn't cheap.

• Assuming your IDP is enough. It isn't, for a SOFA-plated car.

• Buying only JCI. It won't cover the other driver's car — and your base requires liability coverage anyway.

• Underestimating the parking certificate. Police inspect the space, which adds days to your timeline.

• Forgetting the second registration. Japanese plates don't get you through the gate; you still need the base decal and DD Form 430.

Frequently asked questions

Ready to start looking?

The process reads like a lot on paper. In practice, once your SOFA license is sorted and you've picked a car, most of what's left happens behind the scenes — and we do it every week.

At Yoko Drive, every car is inspected before it goes on the lot, we source directly from Japanese auctions if you want something specific, and we handle the registration, parking certificate, JCI, and base paperwork in English from start to finish. Free delivery to base, loaner cars while yours is serviced, in-house repairs, and buy-back when your tour ends.

Browse our current inventory, see what we handle for you, read our PCS and newcomer guides, learn more about us, or get in touch and we'll help you find the right car for your tour.

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 Vehicle Registration Office — Commander, Navy Region Japan (base registration, 2 km parking rule, decal and DD Form 430)

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

• MCAS Iwakuni PMO — Pass & Registration — Iwakuni vehicle registration

• MCAS Iwakuni PMO — Drive Safe Pamphlet (PDF) — SOFA insurance requirements at Iwakuni

• U.S. Army Garrison Japan — Driving & Vehicle Registration — license and registration overview

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

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

• 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

• Japan Automobile Federation (JAF) — driving rules and roadside assistance

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