Shaken is Japan’s compulsory vehicle inspection. Every car on Japanese roads must pass it, and driving without valid Shaken is a serious offence, not a paperwork slip.
For anyone buying a used car in Japan, Shaken matters for one practical reason: how much of it is left is often worth more than the difference in sticker price between two cars.
When Shaken is due
A brand-new passenger car gets its first Shaken at three years. After that it is every two years, for the rest of the car’s life. Kei cars follow the same schedule.
The expiry date is printed on the inspection certificate kept in the car, and on the sticker on the windscreen. You can renew from one month before expiry without losing any of the remaining period.
What the inspection actually checks
Shaken is a roadworthiness and emissions test. The main areas are brakes, steering and suspension, lights and indicators, tyres, the exhaust and emissions, the windscreen and wipers, the horn, the speedometer, and the underbody for corrosion or leaks. Ride height, exhaust noise and window tint are also checked against the legal limits, which is why heavily modified cars often fail.
It is an inspection of condition on the day. It is not a warranty, and it is not a prediction that nothing will break next month.
What makes up the cost
The bill has two separate halves, and understanding the split is what stops you being overcharged.
Statutory costs. These are fixed by law and identical wherever you go: the weight tax, compulsory third-party insurance, and the inspection stamp fee. Weight tax rises with the weight of the car and with its age, so an older, heavier vehicle costs more here than a light, newer one.
Everything else. The garage’s inspection fee, the agency fee for handling paperwork, and any repairs or replacement parts needed to pass. This half varies enormously between a main dealer, an independent garage, and a user-Shaken done yourself.
Rates for weight tax and compulsory insurance are revised periodically, so confirm the current figures before budgeting. Any garage will break a quote into these two halves if you ask, and you should ask.
Why remaining Shaken changes what a used car is really worth
Two cars can look identically priced and be nowhere near it.
A car advertised cheaply with two months of Shaken left is about to need a full inspection, plus whatever repairs it takes to pass. A car sold with a fresh two-year Shaken has that cost already dealt with, and you have two clear years before it comes round again.
When comparing used cars, always ask for the Shaken expiry date. Then compare the total of the price and the cost of the next inspection, not the price alone. It changes which car is actually cheaper more often than people expect.
How we handle it
Every car we sell is delivered with a fresh two-year Shaken, not a partial remainder. The cost of that inspection is already inside the advertised price, along with taxes, registration, new plates, the recycling deposit, and free delivery anywhere in Japan, plus a 6-month / 2,000 km limited warranty (terms).
That is the whole reason we quote one number. You do not need to work out what the next inspection will cost, because you will not be paying it for two years.
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