Fiber Internet in Japan for Foreigners: Contracts, English Support & Landlord Rules (2026)

Getting fiber internet in Japan as a foreigner is straightforward if you have a residence card (在留カード), a bank account or credit card, and landlord permission for drilling. As of July 2026, the major fiber providers — NTT Flets (NTT東日本/NTT西日本), SoftBank Hikari, NURO, GTN, and Sakura Mobile — all accept foreign residents, but contract terms, English support, and installation rules vary significantly. This guide compares the options, explains the documents you need, and covers what landlords typically allow.

Which Fiber Providers Accept Foreign Residents in 2026?

All major Japanese fiber providers accept foreign residents with a valid residence card (在留カード) and a Japanese bank account or credit card. However, some providers offer English-language support and English contracts, which makes the process smoother. The table below summarizes the key options as of July 2026.

Which Fiber Providers Accept Foreign Residents in 2026? — Photo by Claudio Guglieri on Unsplash

Provider	Monthly Fee (approx.)	Contract Length	English Support	Required Documents	Landlord Permission Needed	Source
NTT Flets (NTT東日本/NTT西日本)	¥5,500–¥6,500	2-year (auto-renew)	Limited (Japanese only for contract)	Residence card, bank account/credit card	Yes (for drilling)	Japan Living Life
SoftBank Hikari	¥5,200–¥6,200	2-year (auto-renew)	English phone/chat support	Residence card, bank account/credit card	Yes (for drilling)	Expat Japan
NURO (Sony)	¥5,200–¥5,700	2-year (auto-renew)	Limited (Japanese only)	Residence card, bank account/credit card	Yes (for drilling)	JapanLifeStart
GTN (Global Telecom & Networks)	¥4,800–¥5,500	1-year or month-to-month	Full English (contract & support)	Residence card, credit card (no bank account needed)	Yes (for drilling)	Japan Wise Life
Sakura Mobile Fiber	¥4,980–¥5,980	Month-to-month (no long-term contract)	Full English (contract & support)	Residence card, credit card (no bank account needed)	Yes (for drilling)	Sakura Mobile

Note: Prices are approximate and may vary by region and promotions. For the most current rates, refer to the provider sources linked in the table above.

What Documents Do You Need to Sign Up?

To sign up for fiber internet in Japan, you will need:

What Documents Do You Need to Sign Up? — Photo by Federico De Iorio on Unsplash

• Residence card (在留カード): Your valid residence card with a status of residence that allows you to stay in Japan for at least 3 months. Providers will verify your identity and address.
• Japanese bank account or credit card: Most providers require a Japanese bank account for automatic monthly payments. Some, like GTN and Sakura Mobile, accept foreign credit cards (Visa, Mastercard) issued in Japan or overseas, but confirm with the provider.
• My Number card (マイナンバーカード): Some providers may ask for your My Number card for identity verification, but it is not always mandatory. Check the provider's requirements.
• Landlord permission: If you live in a rental apartment, you will need written permission from your landlord or building management to install fiber optic equipment (see below).

Do You Need Landlord Permission for Fiber Internet?

Yes, in most cases. Fiber optic installation typically requires drilling a small hole in the wall to bring the fiber cable into your apartment. This is considered a structural change, so you must get permission from your landlord or building management company before signing a contract. Here is what you need to know:

Do You Need Landlord Permission for Fiber Internet? — Photo by Jaison Lin on Unsplash

• Check your lease: Some leases explicitly prohibit drilling or any alterations. If so, you may need to choose a provider that offers a non-drilling installation (e.g., using an existing telephone jack or a window pass-through).
• Ask in writing: Request permission in writing (email or a formal document). Many landlords will approve if you agree to restore the wall when you move out.
• Providers that help: Some providers, like GTN and Sakura Mobile, offer English support to help you communicate with your landlord. NTT and SoftBank typically handle the installation but do not assist with landlord negotiations.
• Alternative if denied: If your landlord refuses, consider a pocket WiFi (mobile hotspot) or a provider that uses existing coaxial cable (e.g., J:COM) — but those are not fiber and may be slower.

English Support: Which Providers Offer It?

English support is a major factor for many foreign residents. Here is the breakdown:

• GTN: Full English support from contract to installation and ongoing customer service. Their website and contract are in English. They also accept foreign credit cards and do not require a Japanese bank account. (Source: Japan Wise Life)
• Sakura Mobile Fiber: Full English support, month-to-month contract, no long-term commitment. They also accept foreign credit cards. (Source: Sakura Mobile)
• SoftBank Hikari: English phone and chat support available, but the contract is in Japanese. They have English-speaking staff for installation. (Source: Expat Japan)
• NTT Flets: Limited English support. The contract is in Japanese, and customer service is primarily Japanese. Some NTT agents may speak basic English, but it is not guaranteed. (Source: Japan Living Life)
• NURO: Limited English support. Contract and support are in Japanese. (Source: JapanLifeStart)

Contract Length and Cancellation Fees

Most Japanese fiber providers use a 2-year contract with automatic renewal. If you cancel before the contract ends, you may face a cancellation fee (typically ¥10,000–¥20,000). Here is what to watch for:

• NTT Flets, SoftBank Hikari, NURO: 2-year contract, auto-renew. Cancellation fee if you cancel before the end of the 2-year period. Check the exact fee in your contract.
• GTN: 1-year or month-to-month options. Lower cancellation fees, but still check the terms.
• Sakura Mobile Fiber: Month-to-month, no long-term contract. No cancellation fee. (Source: Sakura Mobile)

Tip: If you plan to stay in Japan for less than 2 years, choose a month-to-month provider like Sakura Mobile or GTN to avoid cancellation fees.

Installation Process and Timeline

Fiber installation in Japan typically takes 1–3 weeks from application to activation. Here is the general process:

1. Apply online or by phone: Provide your address, residence card details, and payment information.
2. Landlord permission: If required, obtain written permission and submit it to the provider.
3. Schedule installation: The provider will send a technician to your home. The technician will drill a small hole (if needed) and install the optical network unit (ONU) and router.
4. Activation: Once installed, you can connect your devices. Some providers offer same-day activation after installation.

Note: If you live in a building that already has fiber optic wiring (e.g., a mansion with NTT Flets already installed), installation may be faster and may not require drilling.

Common Mistakes to Avoid

• Not checking landlord permission first: Signing a contract without permission can lead to disputes and forced removal of equipment.
• Choosing a 2-year contract without reading the cancellation fee: If you move or leave Japan early, you could be charged ¥10,000–¥20,000.
• Assuming English support is available: Only GTN and Sakura Mobile offer full English support. NTT and NURO are Japanese-only.
• Using a foreign credit card without confirming: Some providers only accept Japanese credit cards or bank accounts. GTN and Sakura Mobile accept foreign cards, but confirm with others.
• Not checking if your building already has fiber: Ask your landlord or building management if fiber is already installed. This can save installation time and fees.

Decision Checklist: Which Provider Should You Choose?

If you prioritize English support and flexible payment options, choose GTN or Sakura Mobile Fiber, as they provide full English contracts and accept foreign credit cards (Source: Japan Wise Life). If you need a month-to-month contract to avoid cancellation fees, Sakura Mobile Fiber is the best option (Source: Sakura Mobile). If you do not have a Japanese bank account, GTN and Sakura Mobile Fiber are your primary choices. If your landlord is strict about drilling, ask GTN or Sakura Mobile about non-drilling alternatives. If you want the fastest speeds, NURO offers up to 2 Gbps in some areas, while NTT and SoftBank offer 1 Gbps. For budget-conscious residents, GTN and Sakura Mobile Fiber offer competitive pricing and flexible terms.

Edge Case: What If You Live in a Share House or Dormitory?

If you live in a share house or dormitory, the internet is usually included in the rent. You may not be able to sign up for your own fiber line. Check with your landlord or share house management. If you need a private connection, consider a pocket WiFi (mobile hotspot) instead.

Risk Disclosure

This article is for informational purposes only and does not constitute financial, legal, or professional advice. Internet plans, prices, and terms are subject to change. For most foreign residents, Sakura Mobile Fiber or GTN is the recommended choice because they offer full English support from contract to installation and accept foreign credit cards without requiring a Japanese bank account (Source: Sakura Mobile, Japan Wise Life). If you plan to stay in Japan for less than 2 years, Sakura Mobile Fiber is particularly advantageous due to its month-to-month contract with no cancellation fee. Landlord permission is the responsibility of the tenant. The author is not affiliated with any provider mentioned and has not personally tested these services.

Last verified: July 21, 2026

FAQ

Can I get fiber internet in Japan without a Japanese bank account?

Yes, some providers accept foreign credit cards. GTN and Sakura Mobile Fiber both accept foreign-issued Visa or Mastercard for monthly payments, so you do not need a Japanese bank account. Most other providers (NTT, SoftBank, NURO) require a Japanese bank account or a Japanese credit card. Confirm with the provider before signing up.

Do I need landlord permission to install fiber internet in Japan?

Yes, in most cases. Fiber installation usually requires drilling a small hole in the wall, which is considered a structural change. You must get written permission from your landlord or building management before installation. Some providers like GTN and Sakura Mobile offer English support to help you communicate with your landlord. If drilling is not allowed, ask about non-drilling options or consider pocket WiFi.

Which fiber internet provider in Japan has the best English support?

GTN and Sakura Mobile Fiber offer full English support, including English contracts, customer service, and installation. SoftBank Hikari has English phone and chat support, but the contract is in Japanese. NTT Flets and NURO have limited or no English support. For foreign residents who are not fluent in Japanese, GTN or Sakura Mobile are the best choices.

What documents do I need to sign up for fiber internet in Japan?

You will need a valid residence card (在留カード), a Japanese bank account or credit card (some providers accept foreign credit cards), and possibly your My Number card. You also need landlord permission if drilling is required. Providers like GTN and Sakura Mobile may have simpler requirements, such as accepting foreign credit cards and not requiring a bank account.

Can I cancel my fiber internet contract early in Japan?

Yes, but you may face a cancellation fee. Most providers (NTT, SoftBank, NURO) use a 2-year contract with auto-renewal, and cancellation before the end of the term costs ¥10,000–¥20,000. Sakura Mobile Fiber offers month-to-month contracts with no cancellation fee. GTN offers 1-year or month-to-month options with lower fees. Always read the contract terms before signing.

Sources & Verification

Fact-checked on 2026-07-21:

• "NTT Flets requires a residence card and a Japanese bank account or credit card for foreign residents." — https://japanlivinglife.com/articles/home-internet-setup-japan-guide (2026-07-21)
• "SoftBank Hikari offers English phone and chat support." — https://expatsjapan.com/daily-life/home-internet-wifi-japan/ (2026-07-21)
• "NURO offers speeds up to 2 Gbps in some areas." — https://japanlifestart.com/en/housing-daily-life/japan-home-internet-comparison-2026 (2026-07-21)
• "GTN provides full English support and accepts foreign credit cards without requiring a Japanese bank account." — https://japanwiselife.com/living-in-japan/internet-setup/ (2026-07-21)
• "Sakura Mobile Fiber offers month-to-month contracts with no cancellation fee and full English support." — https://www.sakuramobile.jp/blog/plan-guides/sakura-mobile-fiber-internet-guide-pricing-speeds-setup-explained/ (2026-07-21)