Why the car's age decides the whole process
UK rules don't care how clean the car is, how low the mileage reads, or how well it was maintained in Japan. What matters is a single date: the car's first registration abroad, measured against today. Nothing else counts. Cross the ten year line and the entire approval route changes, even for two examples of the same model from the same production year.
| Car's age | What UK registration requires | Typical cost and time |
|---|---|---|
| Under 10 years old | Full IVA test (lights, speedo, headlight pattern) | Around £200 to £300, plus any fixes, several weeks |
| Over 10 years old | Standard MOT test instead of IVA | Usual MOT fee, booked like any used car |
| Either age | NOVA notification to HMRC first | Free, but a strict 14 day deadline |
The IVA test, step by step
- Confirm the car's exact build date on the Japanese export certificate, not the model year quoted by the seller.
- Book the IVA test slot early, since test centres that handle individual approvals aren't on every corner and slots fill up weeks ahead.
- Fit a speedometer that reads in mph, or a dual dial unit, since a kph only dash is one of the most common IVA fails on JDM imports.
- Check headlight beam pattern and indicator colour against UK requirements, amber rear indicators are a frequent sticking point on older Japanese models.
- Keep every receipt for parts changed to pass, since a retest after a fail still costs a reduced fee rather than the full amount again.
The 14 day deadline nobody mentions upfront
Before DVLA will touch a registration application, HMRC needs a NOVA (Notification of Vehicle Arrivals) submission confirming VAT and duty have been sorted. The window is 14 days from the car physically entering the UK, not 14 days from deciding to register it. Miss that window. A penalty follows on top of whatever VAT and duty were already due.
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What to gather before booking anything
A grey import arrives with Japanese paperwork, not a V5C, so the DVLA application leans on a different stack of documents than a standard used car purchase.
- Export certificate from Japan, showing the original registration date and chassis number.
- Proof of purchase and shipping, since DVLA cross checks the import timeline against the NOVA submission.
- NOVA confirmation number from HMRC before the registration form goes in.
- IVA pass certificate, or the MOT pass certificate for a car over 10 years old.
- Mutual Recognition paperwork if the car already holds an approval from another EU or EEA state, which can bypass a fresh IVA test entirely.
What the car is actually worth once it's on the road
Once it's registered and insured, pricing a Japanese import against the UK market gets harder than it sounds. Mainstream valuation tools are built around standard UK trim lists, and a JDM spec with different equipment codes often doesn't match anything on file. A quick, free valuation still gives a useful starting number, one to sanity check an insurer's figure or to work from before a future private sale, without needing to track down an exact trim match first.
Our used car checklist before buying covers the walkaround worth doing on any import once it's roadworthy, and the points an MOT tester flags most often are listed in our guide to MOT advisory items.
What to lock down before you commit to an import
Check the build date against the ten year line first, since that single fact decides the entire cost and timeline ahead. Submit the NOVA notification within 14 days of arrival, without exception. Book the IVA test early if the car needs one, and budget for a speedometer swap on most JDM models. Skip any of these steps and the car sits off the road, uninsurable and unregistered, for a lot longer than the saving was worth.
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