Automobile taxes in Japan
Ownership, acquisition, weight, inspection, environmental classification, and notices.
Owning a car brings an annual automobile tax (billed each spring to the owner as of April 1), plus environmental-performance and weight taxes at purchase and inspection — with amounts varying by engine size, weight, and environmental classification.
Effective: 2026-01-01 to 2026-12-31
Professional review pending — treat as draft and confirm with the authorities.
Key points
- Annual automobile tax, billed to the April-1 owner.
- Environmental-performance tax at acquisition.
- Weight tax at purchase and at inspection (車検).
- Amounts vary by engine size, weight, and environmental class.
Annual and purchase taxes
The annual automobile tax (種別割) is billed each spring to whoever owns the vehicle on April 1, with the amount set by engine size (and a lighter kei-car regime). At purchase you pay an environmental-performance tax based on fuel efficiency and emissions, and automobile weight tax is charged at purchase and again at each shaken (inspection).
Classification and local rules
Environmental classification (eco-friendly vehicles) can reduce some of these taxes, and kei cars are administered locally with lower amounts. Rates and green-car reductions change, and administration is split between national and local bodies. Check current amounts for your vehicle class and municipality.
Who this is for
- Car owners and buyers
- People budgeting vehicle costs
What this is not
- Business fleet accounting
- Green-car reductions and rates change yearly; confirm current amounts.
Frequently asked questions
Do I need to file a tax return in Japan?
Many employees do not, because tax is settled by year-end adjustment (年末調整). You generally must file (確定申告) if you have side income over ¥200,000, two or more employers, self-employment income, sizeable investment or crypto gains, or you want to claim deductions like large medical costs or a first-year mortgage credit. Filing season is Feb 16 – Mar 15 via e-Tax. When unsure, check the NTA guidance or ask a 税理士.