🚗 Want to drive in Japan? It just got a lot harder. Until recently, foreigners could convert their home country's driver's license to a Japanese one by passing a simple 10-question true-or-false test, with a pass rate of nearly 90%. As of October 2025, the test has jumped to 50 questions, tourists can no longer apply, and the pass rate has plummeted to the 30–40% range. Here's what happened, why, and what it means for you.

What Is "Gaimen Kirikae"?

In Japan, foreigners who want to drive have three main options: use an International Driving Permit (IDP), attend a Japanese driving school from scratch, or convert their existing foreign license through a process called gaimen kirikae (外免切替, literally "foreign license conversion").

The conversion route has long been the most practical path for foreign residents. Instead of spending upwards of $2,000 and weeks at a driving school, applicants could take a written knowledge test and a practical driving test at a license center to receive a full Japanese license. For many expats, international workers, and long-term residents, this was the go-to method.

There is a structural reason so much demand funnels into it. The only international driving permits valid in Japan are those issued under the Geneva Convention, and China and Vietnam are not parties to it. Licenses from those countries cannot be used in Japan as they are, so conversion is the only route.

What Changed in October 2025

Japan's National Police Agency (NPA) implemented sweeping reforms to the conversion system on October 1, 2025. The changes were dramatic.

The written test expanded from 10 to 50 questions. Previously, applicants answered just 10 true-or-false questions, needing only 7 correct to pass. Now, they face the same 50-question exam that Japanese first-time applicants take, requiring 45 or more correct answers, a 90% threshold. The questions cover traffic signs, right-of-way rules, emergency vehicle protocols, DUI penalties, highway driving regulations, and other aspects of Japan's Road Traffic Act.

Proof of residency is now mandatory. Applicants must submit a juminhyo (certificate of residence), which means they need to be formally registered at a Japanese address. This effectively eliminates anyone without an established residential base in Japan.

Tourists are completely barred from applying. Visitors on short-term tourist visas can no longer apply for license conversion at all. Previously, social media posts in multiple languages circulated tips about flying to Japan on a tourist visa and converting a license during the visit, that loophole is now sealed.

Driving history verification is stricter. Officials now more thoroughly verify applicants' driving records in their home countries and their length of stay in Japan.

The practical test was revised too. Checks were added for situations such as passing a pedestrian crossing, and the assessment criteria were brought into line with those applied to Japanese first-time applicants. The old skills check centered on basics: pulling away, turning, stopping.

What the Numbers Show

The impact was immediate and stark. Chiba Prefectural Police data, for example, showed the pass rate falling from 93.3% before the change to 34.4% after it, and Oita police likewise put the earlier rate at about 90%.

National figures are now available. In an implementation report published on March 2, 2026, the National Police Agency said the knowledge test pass rate for October to December 2025 had fallen from the previous 90% to 40%. Less noticed, the drop on the practical test was steeper still: from 30% to 10%. The agency attributes both to the tougher testing. For context, Japanese citizens take the same 50-question test when getting their first license, but only after completing dozens of hours of classroom instruction at driving school. Foreign applicants must study on their own.

Why Japan Tightened the Rules

Several factors converged to push policymakers toward reform.

Accidents and violations by converted drivers. On May 14, 2025, a car driven by a Chinese national struck a line of elementary school children in Saitama. On May 18, a car driven by a Peruvian national went the wrong way on the Shin-Meishin Expressway in Kameyama, Mie, and hit two other vehicles. Both drivers had obtained their licenses through conversion, and the two cases were the direct triggers for the review.

At his regular press conference on May 22, National Police Agency Commissioner General Yoshinobu Kusunoki said accidents were occurring among foreign nationals who had obtained licenses through the system, and that the agency would assemble a reform package. He also signaled that a certificate of residence would become the rule regardless of nationality, and that conversion would not be granted to people staying in Japan as tourists. The day before, the agency had told an LDP meeting it would tighten address verification and screening.

A sharp rise in usage. Conversions had surged: 68,623 people used the system in 2024, about 2.4 times the 2015 figure (28,886), with Vietnam the largest source, followed by China and South Korea, driven by growth in technical trainees and foreign visitors.

Weak address checks. The Diet had raised the fact that applicants could use proof of a temporary stay at a hotel as their address, meaning people with no real base in Japan could obtain a license.

Social media exploitation of the old system. Online communities shared detailed guides, in multiple languages, on how to pass the 10-question test through pure memorization, how to apply on a tourist visa, and even alleged leaked test questions. Some reports suggested proxy test-taking. The ease of gaming the system undermined its credibility.

A perceived fairness gap. Japanese citizens voiced frustration that they had to invest roughly $2,000 and weeks of instruction to earn a license, while foreigners could achieve the same result with a 10-question quiz. The phrase "not fair" (fukouhei, 不公平) became a recurring theme in online discussions.

How Does Japan Compare to Other Countries?

Japan's old system was, by international standards, exceptionally lenient. The new system brings it closer to the global norm.

United States. Rules vary by state. Most require both a written and a practical test, and many offer the written test in several languages. Some states waive testing and allow direct conversion for licenses from particular countries.

Germany. EU and EEA licenses convert with minimal paperwork. Licenses from elsewhere require both a theory exam and a practical test, and the costs add up accordingly.

Australia. Bilateral arrangements mean licenses from some countries are recognized automatically; holders of other licenses must sit both a written and a practical test. Rules differ by state and territory.

South Korea. Korea has also tightened conversion for foreign license holders in recent years, prompted by the same concern: licenses being issued to people without adequate knowledge. That is a separate matter from the mutual recognition arrangement that exists between Japan and Korea.

The pattern is clear: most developed nations require meaningful testing for foreign license conversion, and several have tightened their rules in recent years for similar reasons.

What This Means for Foreign Residents and Future Expats

If you're living in Japan or planning to move there, here's what you need to know.

Plan for serious study time. The 50-question test covers the full scope of Japanese traffic law. Some test centers offer it in several languages, but the wording renders Japanese legal concepts, and conversational fluency is not enough to parse it. Cramming the night before is no longer a viable strategy.

Establish residency first. You'll need a valid juminhyo, which requires registering at your local city or ward office. This is a standard step for anyone living in Japan long-term but may require advance planning for those who just arrived.

Check your country's bilateral agreement status. Approximately 30 countries and territories, including Switzerland, Belgium, Taiwan, and South Korea, have reciprocal license recognition agreements with Japan. If your country is on this list, the conversion process remains relatively straightforward with less rigorous testing requirements.

Budget extra time for the practical test. This is where the reform bites hardest: the pass rate fell further than on the written test, and applicants are now judged against the same standard as Japanese first-time candidates. Many report needing multiple attempts, particularly those unfamiliar with Japan's emphasis on exaggerated mirror-checking, precise lane positioning, and specific behaviors at railroad crossings.

The consensus in Japan is that these reforms were overdue, and that the old system's leniency was the anomaly. But there is a real cost to foreign residents: clearing 50 questions on Japanese traffic law in a second language is not a small ask, and expanded multilingual support and study resources remain unfinished business.

Is converting a foreign driver's license easy or difficult where you live? Have you been through the process yourself, in Japan or elsewhere? We'd like to hear it.

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