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Japanese Practice for Expats Living in Japan

Living in Japan as a foreigner involves navigating systems that are often only available in Japanese, from the ward office (kuyakusho) registration to the health insurance selection and the Japanese bank account setup. Lucy OS1 gives you daily AI speaking practice in Japanese for these exact real-life situations that define expat life in Japan.

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Registration in Japan: Zairyu Card, My Number, and Ward Office

All foreign residents in Japan staying longer than 90 days receive a zairyu card (zairy u kado, residence card) at the airport upon entry. The zairyu card must be registered at your ward or city office (kuyakusho or shiyakusho) within 14 days of establishing an address. The ward office registration (jumin toroku) gives you access to resident services in your district. My Number (mainanba) is Japan's social security and tax identification system: you receive a notification letter with your My Number at your registered address and then collect the physical My Number card (mainanba kado) at the ward office. The My Number card requires a photograph and is used for tax filings, health insurance, and social services access. Understanding the ward office process in Japanese is one of the first real-life Japanese communication challenges for new residents.

Housing in Japan: Finding an Apartment, Guarantors, and Contracts

Finding an apartment in Japan traditionally requires a Japanese guarantor (hoshounin), key money (reikin, a non-refundable gift payment of one to two months rent), deposit (shikikin, two months refundable), and agency fee (chukai tesuryo, one month). This makes initial housing costs five to six months of rent upfront. Key money (reikin) is becoming less common in Tokyo but persists in older parts of Osaka and Kyoto. Services like SUUMO, Homes.co.jp, and GaijinPot Housing assist foreign residents. Leopalace21, Sakura House, and Oak House are apartment services specializing in foreign residents. The monthly rent (ya chin) is listed separately from management fees (kanri hi). Apartment viewings (nai ken) involve specific vocabulary for asking about facilities (setsubi), internet (netto kankyo), pets (petto kanou), and smoking policy (kin en).

Healthcare in Japan: Kokumin Kenko Hoken, Shakai Hoken, and Clinics

Japan has two main health insurance systems for foreign residents. Employees enrolled through their company join Shakai Hoken (social health insurance, shakai hoken), which provides comprehensive coverage with premiums split between employer and employee. Residents not covered by employer insurance must join Kokumin Kenko Hoken (National Health Insurance, NHK) through their ward office. NHK premiums vary by municipality and income and cover 70% of medical costs with 30% co-payment (jiko futan). Clinics (kurinikku) handle routine care. Hospitals (byoin) are for more serious conditions. The Japan Post Bank (Yucho Ginko) and Sony Bank are known to open accounts for foreign residents with more flexible requirements than major banks. NHK (Japan Broadcasting) is different from NHK health insurance and requires a separate subscription payment.

Frequently Asked Questions

What is the zairyu card and do I always need it with me?
The zairyu card (residence card) is the primary identification document for all non-Japanese residents in Japan. By law, you must carry it at all times. Police may request to see it. It is used for ward office registration, opening bank accounts, signing apartment contracts, and any interaction with Japanese immigration (nyukoku kanri kyoku). Losing it requires immediate reporting to your local immigration bureau.
How do I get Japanese health insurance as an expat?
Employees are enrolled in shakai hoken through their employer automatically. Non-employed residents must join kokumin kenko hoken at their ward office. Bring your zairyu card, My Number, and passport. Premiums are calculated based on your previous year's income. Students enrolled at Japanese universities are typically covered by gakusei hoken (student insurance) through their institution.
How difficult is it to open a Japanese bank account as a foreigner?
Japanese banks are known for restricting foreign account openings, particularly within the first few months of arrival. Japan Post Bank (Yucho Ginko) is typically the most accessible for new arrivals as it requires zairyu card only, not a minimum residency period. Sony Bank and Shinsei Bank are alternatives known for foreign-resident friendly policies. SBI Sumishin Net Bank also accepts foreign residents. A Japanese bank account is essential for salary payment, utility setup, and most financial services.
What is key money (reikin) and is it still required?
Reikin (key money) is a non-refundable gratitude payment traditionally made to landlords in Japan, typically one to two months' rent. It has no legal basis in tenant protection law and its prevalence is declining, particularly in Tokyo. In Osaka and some older neighborhoods, it remains common. When searching for apartments, looking specifically for 'reikin nashi' (no key money) listings can significantly reduce move-in costs.
What Japanese vocabulary is most important for daily life as an expat?
The highest-impact Japanese vocabulary for expat daily life includes: yasashiku itte kudasai (please say it gently/slowly), mou ichi do itte kudasai (please say it one more time), wakarimasen (I don't understand), nihongo ga amari jyozu de wa arimasen (my Japanese is not very good), eigo wa hanasemasu ka (can you speak English?), and the specific vocabulary for your most frequent interactions: pharmacies, supermarkets, convenience stores, and public transport.

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