Juminzei and Kokumin Nenkin in Japan: Student Pension Exemption and Avoiding a Surprise Bill

It's 6:30 p.m. You're standing behind a konbini register, the shift almost over. Your manager hands you a white envelope: "This came to the shop by mistake, I think it's yours." The sender line reads 日本年金機構, the Japan Pension Service. Your stomach drops. What's inside? Let's walk through the day this envelope lands.

Morning: the city office counter you already visited

Within 14 days of arriving, you registered your address at the ward office. That single step also put you into two systems: national health insurance and the national pension, kokumin nenkin. Everyone aged 20 to 59 living in Japan is covered, international students included. Yes, that means you.

Many Bangladeshi students never hear this before flying. Nobody at the airport mentions it.

Midday: the ¥20,000 question, between classes

The monthly premium is roughly ¥17,000 (it changes every fiscal year, so confirm the current figure). That's over ¥200,000 a year. If you earn ¥90,000–100,000 a month from part-time work, that's heavy.

This is where the Gakusei Nofu Tokurei (学生納付特例), the student payment exemption, comes in. Be careful with the word "exemption": it's really a deferral. If you're enrolled at an eligible school and your previous year's income is under a threshold (around ¥1.3 million, but check with your office), you don't pay during that period. You can pay it back later within 10 years. If you don't, those months don't count toward your future pension amount.

One honest caution: not every language school qualifies in every city, and you must reapply every year. Ask the pension counter before assuming. Our language school vs university guide explains why school type matters here.

Afternoon: juminzei, the bill that arrives in year two

Juminzei (住民税), the resident tax, is calculated on last year's income. So in year one you see nothing. Then around June of year two, a notice drops in. If your part-time income the previous year went beyond roughly ¥1.05 million (it varies by municipality), a bill is possible. It might be a few thousand yen, or ¥50,000 and up.

The trouble starts when students switch schools, move or go home without updating their address. The notice goes to the old flat, late fees stack up, and I've seen unpaid tax cause headaches at visa renewal time.

Evening: your payslip and the student tax return

Look at your payslip for 源泉徴収, tax withheld at source. On a student visa you can work up to 28 hours a week. If your income is low, you may be able to get a good part of that withholding back. If your employer doesn't do year-end adjustment, you can file a kakutei shinkoku yourself, usually by mid-March. The tax office staff are generally helpful. Keep every payslip and your annual withholding slip.

Night: opening the envelope

Inside will probably be a payment slip or an exemption application form. Don't panic. After class tomorrow, go to the pension counter at city hall with your residence card, passport and student ID or certificate of enrolment. Remember: the application is renewed yearly. People forget.

And when you leave Japan? If you've paid for at least six months, you can claim a pension lump-sum withdrawal (脱退一時金), within two years of leaving. You can file from Bangladesh. The amount depends on months paid, and exempted months don't count. Rules change, so check before applying.

So is Japan still the smart, affordable choice?

Yes, if you plan for it. Tuition is far lower than in the UK or Australia, and for those looking at study abroad without IELTS, Japanese language school gives a real entry path. If you're weighing higher study abroad after HSC, read studying in Japan after HSC. Funding options are listed on our scholarships page. For anyone comparing study abroad from Bangladesh options, tax and pension are small, real costs; known early, they're manageable. If you're thinking about working after graduation, see student vs SSW vs work visa.

Three things to do tonight

• Check the date on that envelope.
• File your payslips and withholding slip somewhere safe.
• Tell city hall whenever you move or leave.

I counsel students at the Inochi Global Education Institute Barishal office on Nobogram Road, Muslim Para. If you want help planning your move, take a look at our study in Japan support service.