Zairyu NaviJAPAN LIFE GUIDE
▼

Health Insurance — Ota

Documents

2

Cost

Free

Steps

6

Deadline

Within 14 days of completing resident registration

Office

太田市役所 国民健康保険課

✓Information verified: April 2026 | By Japan Life Guide Editorial Team

Free Insurance Consultation

Free Insurance Consultation →

National Health Insurance in Ota City — Enrollment Guide

Many foreign residents in Ota work in manufacturing and may already be covered by employer insurance (shakai hoken). If not — for example, if you are self-employed, between jobs, or working part-time — you need to enroll in NHI.

ItemDetails
Time Required20–40 minutes
Monthly PremiumVaries by income
DocumentsResidence Card, Passport
OfficeOta City Hall Insurance Counter

Step 1: Confirm You Need NHI

If your employer provides social insurance (shakai hoken), you do not need NHI. Check with your employer first.

Step 2: Visit the Insurance Counter

Go to Ota City Hall's insurance section with your Residence Card.

Step 3: Enroll

Complete the form and submit. NHI card arrives by mail in about 2 weeks.

  • ☑ Residence Card
  • ☑ Passport
  • ☑ Proof of not having employer insurance (if applicable)

Office Information

Ota City Hall — Insurance Section
Address: 1-1-1 Hamamachi, Ota-shi, Gunma
Phone: 0276-47-1111
Hours: Mon–Fri 8:30–17:15
Source: Ota City

Q: Do factory workers need NHI?

Most factory workers at larger companies are covered by employer insurance (shakai hoken). NHI is for those without employer coverage.

Q: Can I get premium reduction help?

Yes, Ota offers premium reductions for low-income households. The multilingual staff can help you apply.

※ The information on this site is for reference only. Please confirm procedure details at your local municipal office.

Check Required Procedures

Check Required Procedures →

Related Procedures

What to do next →

After this procedure, you typically need these:

More about Health Insurance

You might also need

※ The information on this site is for reference only. Please confirm procedure details at your local municipal office.

Source: https://www.city.ota.gunma.jp/005/p009105.html