Thailand’s EV Tax Overhaul, Explained
Thailand’s Finance Ministry is preparing to rewrite its electric vehicle excise tax rules so that the rate a car pays depends on how much of it was made in Thailand. The 35% rate on fully imported EVs is already approved and takes effect January 1, 2027, up from 10% for battery electrics and 15% for range-extended electrics.
Here’s what it means for the region: the tax does not just raise the price of an imported car. It redraws the map of who builds EVs in Southeast Asia and where, and it does so by making the showroom sticker on a fully imported car roughly a third more expensive in tax terms than one assembled locally.
How the Tiers Work
The proposed framework has three rungs. An EV maker with a factory in Thailand that meets the required local content threshold would pay 10%. A company with a domestic factory that does not use enough locally made parts could face 15–20%. Fully imported EVs pay 35%.
Think of it like a frequent-flyer program where the perk is a lower tax bill: the more of the car you build and source in Thailand, the cheaper it gets to sell there. Finance Permanent Secretary Lavaron Sangsnit said the changes are meant to push automakers to deepen their investment in Thailand and build up a domestic supply chain.
The Excise Department is still working out how to measure local content, and is discussing the framework with the Federation of Thai Industries. One option on the table is the Made in Thailand standard. The minimum share of locally sourced parts has not been decided, and the revised criteria are expected to take effect in about three years, around 2030.
Why Imports Became the Problem
Thailand’s earlier EV incentives, known as EV 3.0 and EV 3.5, did their job too well on one count. They expanded the market and drew manufacturers to set up eight factories in the country. But the low tax on imported vehicles let some companies keep shipping in finished cars instead of building them locally.
The numbers show the gap. Passenger BEV sales hit 161,532 units in the first nine months of 2026, 31% of the market, while domestic BEV output over the same period was just 70,472, according to the Federation of Thai Industries. Commerce Ministry data put the value of BEV imports from January to September at US$2.36 billion, with 96% of it coming from China.
Tariffs were never going to fix this. The ASEAN-China trade pact scrapped duties on finished vehicles back in 2010, so excise tax is the lever the government has left.
Who Gets Hit and Who Doesn’t
The sharpest impact falls on brands with no local plant, such as Tesla, Volvo, Porsche and Audi, and on Chinese models not yet assembled in Thailand. Chinese automakers that already build cars in the country, including BYD, Great Wall, MG and Changan, are largely insulated on the models they assemble locally, which keep a 2% rate.
The government has framed the move as a defence of long-established Japanese supply chains. Industry Minister Varawut Silpa-archa said the government prioritises investors who have helped develop Thailand’s auto industry and supported its economy for decades, particularly Japanese companies, according to a translation cited by Nikkei. Finance Minister Ekniti Nitithanprapas said the aim was to support Thailand as a production and export base while retaining firms that employ Thai workers.
Japanese assemblers gain more from the hybrid tax structure than from the EV levies. Locally built regular hybrids are taxed at 6–15%, against 25–35% for internal combustion engine cars, which helps preserve a supplier base built around Toyota and Honda. That base is under strain: Japanese brands’ share fell from 76.7% in 2024 to 69.3% in 2025 and has slipped below 60% in 2026 registration data, leaving one-tonne pickups, where they still hold more than 90%, as their main stronghold.
The Factories Already Moving
Industry voices expect the tax to speed up production rather than just announcements. “Instead of saying they plan to invest, they will move faster to produce vehicles in Thailand,” said Surapong Paisitpattanapong, spokesman for the FTI’s Automotive Industry Club.
Two carmakers asked to discuss possible factories after the policy won approval, Lavaron told reporters. AAS Auto Service Co. has reached out to the finance minister, and another manufacturer was slated for talks with the Excise Department.
Millennium Group Corporation (Asia) Pcl, the Thai distributor of XPeng, is exploring a possible plant with the Chinese brand. The company said by email that it is working with XPeng to assess the project’s commercial viability, potential production volumes, the readiness of local parts suppliers and its ability to meet local-content requirements. Omoda & Jaecoo (Thailand) Co. plans to lift output and increase use of locally made parts; Vice President Bill Zhang said by email that the company will continue to develop a more complete business ecosystem around its operations in the country.
One additional company has already expressed interest in investing, which could bring the number of EV factories to nine, with a tenth also considered possible. BOI-approved EV projects have almost doubled over the past five years to above 141 billion baht as of September.
What It Means for Output
The FTI estimates the restructuring will help Thailand’s automotive industry grow at least 7% in 2027, with total output of no fewer than 1.55 million units, according to FTI president Pimjai Leesrisakulnukul. The industry accounts for about 10% of Thailand’s GDP and supports more than 800,000 jobs across the supply chain, including more than 3,000 SMEs.
Bangkok’s target is that locally produced cars make up 70% of supply within two years, more than double their share from January through September 2026. Importers are racing to bring in vehicles before January 1, according to Surapong.
The Regional Picture
Thailand has been Southeast Asia’s largest automotive producer since at least 2019 and the world’s tenth largest, with annual output above two million vehicles. Most of those vehicles are developed and licensed by foreign producers, mainly Japanese, American and Chinese, and the country leans on the ASEAN Free Trade Area to sell them across the region.
That position is what the tax is protecting. As Chinese EV makers redraw a market long led by Japanese brands, a rule that rewards local assembly keeps Thailand’s factories, suppliers and workers at the centre of the supply chain rather than letting the country become a showroom for finished imports. For automakers weighing where to put their next ASEAN plant, the practical upshot is a clear price signal: build in Thailand and pay 10%, import and pay 35%.
The tax adjustment follows resolutions of Thailand’s National Electric Vehicle Policy Committee at its 1/2025 meeting on November 25, 2025, and its 1/2026 meeting on September 10, 2026, which assigned the Excise Department to work out implementation. Ekniti said the measure rests on three principles: investment-driven imports, positioning Thailand as a regional and global EV hub, and promoting high value-added local content, with the goal of creating jobs and upgrading Thai workers’ skills.
The ministry is also reviewing tax incentives for high-value EV components, particularly batteries. Many automakers keep battery technology and production within their overseas parent companies, which makes it hard for Thailand to attract investment in that part of the supply chain.
What Comes Next
Ekniti will lead a Thai government and business delegation to Japan from November 18–20, 2026, to strengthen investment cooperation in semiconductors, automotive manufacturing and other advanced industries. The delegation is scheduled to meet six Japanese automakers with production in Thailand: Toyota, Honda, Isuzu, Mitsubishi, Mazda and Nissan. Discussions will cover changes to the vehicle tax structure aimed at ensuring fair competition and encouraging domestic production, according to the Thailand Board of Investment, which announced the mission.
The 35% rate itself lands on January 1, 2027. The local content formula that decides whether a factory-built car pays 10% or 15–20% is still being written, with initial details expected soon and the final criteria due around 2030.
Sources
- Thailand plans tougher EV tax rules tied to local production and parts – Pattaya Mail
- Automotive industry in Thailand
- Thailand's EV import tax hike spares China's local plants | Automotive World
- Thailand 35% EV Import Tax Spurs Local Factories
- Thailand targets Japanese investment in semiconductors and automotive manufacturing
- Thailand's FTI Expects 35% Import EV Tax to Push Thai Auto Output Past 1.55 Million Units in 2027 — BigGo Finance
Photo: TTTNIS (CC0)
