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Guarantor & Guarantee Companies in Japan Explained

2026.06.06

If you are renting an apartment in Japan, most landlords will require either a personal guarantor or a guarantee company. For foreign residents without family in Japan, using a guarantor company in Japan is usually the easiest and most realistic option. This guide explains what these companies do, what they cost, what documents you need, and how to choose one with confidence.

The quick answer: use a guarantee company

For most foreign residents, a guarantee company (保証会社, hoshō-gaisha) is the simplest path to signing a lease. You no longer need to ask a Japanese friend or colleague to take on the legal responsibility of being your personal guarantor. Instead, you pay the company a fee, and they promise the landlord that your rent will be covered if you ever fail to pay.

In practice, you rarely choose the guarantee company yourself — the real estate agent or landlord usually assigns one. Your job is to understand the costs, prepare the right documents, and know what to compare so there are no surprises. The good news: many guarantee companies are used to working with foreign tenants, and some specialise in it.

What is a guarantor and what does a guarantee company do?

Traditionally, Japanese rental contracts required a personal guarantor (連帯保証人, rentai hoshōnin) — usually a family member with stable income who would pay your rent if you could not. Many newcomers simply do not have anyone in Japan who can do this.

A guarantee company solves this. It steps in as a paid substitute for a personal guarantor. If you miss a rent payment, the company pays the landlord first and then collects the amount from you. Important points to understand:

  • The fee you pay is not a deposit — it does not protect you, it protects the landlord.
  • If the company covers your unpaid rent, you still owe that money to the company.
  • Using one is now standard, not a sign that you are a risky tenant.

How much does a guarantee company cost?

Costs vary by company and property, so treat the figures below as a general guide and confirm the exact amount in your contract before signing.

  • Initial fee: often around 50% to 100% of one month's rent (sometimes a fixed amount).
  • Annual renewal fee: commonly a smaller fixed amount, such as around 10,000 yen per year, or a percentage of rent.
  • Monthly model: some companies charge a small percentage of rent every month instead of a large upfront fee.

Always ask the agent to break down the initial costs in writing. The guarantee fee is just one line in a longer list that usually includes a deposit (shikikin), key money (reikin), agency fee, and insurance.

Documents you usually need

Guarantee companies run a basic screening (審査, shinsa). Prepare these in advance to speed things up:

  • Residence card (zairyū card) — front and back.
  • Passport.
  • Proof of income — pay slips, an employment contract, or a job offer letter.
  • Proof of employment or enrolment — company name, or student ID for students.
  • Bank account details in Japan for rent withdrawal (a Yucho or other bank account is often required).
  • Emergency contact — sometimes a contact in Japan or your home country is requested.

If your Japanese is limited, ask whether the company offers support in English or your language. Several guarantee companies that focus on foreign residents provide multilingual assistance.

What to compare when a guarantee company is involved

Even though the company is often assigned to you, you can still ask questions and compare. Focus on these points:

  • Total upfront cost vs. monthly cost — which model is used?
  • Renewal fees — how much and how often?
  • Language support — are contracts and customer service available in English?
  • Screening difficulty — some companies are more flexible for new arrivals, students, or those without a long work history.
  • Late-payment handling — how quickly do they contact you, and what fees apply?

Guide comparison: typical guarantee company models

ModelTypical initial feeOngoing costBest for
Upfront fee modelAbout 50–100% of one month's rentAnnual renewal fee (e.g. around ¥10,000)Tenants who prefer lower long-term cost
Monthly fee modelLower or noneSmall monthly % of rentTenants who want lower move-in cost
Foreigner-friendly providersVariesVariesNew arrivals needing language support and flexible screening

The figures above are a general guide only. Always confirm the latest fees and terms with the specific company and on the official documents you receive.

Practical tips for foreign residents

  • Ask which company will be used early in the process, and request the fee breakdown in writing.
  • Prepare documents before viewing apartments so you can apply quickly once you find a place.
  • If screening is difficult, mention your stable income or a guarantor-friendly property to the agent — some agencies and companies specialise in helping foreign tenants.
  • Keep your rent account funded. Many companies auto-withdraw on a set date; a missed payment can trigger fees even if it was an honest mistake.
  • Read the renewal terms. A low initial fee sometimes comes with higher recurring costs.

Summary and next steps

For most foreign residents, a guarantee company is the normal, accessible way to rent in Japan — you do not need a personal guarantor to find a home. Focus on three things: understand the total cost (initial plus renewal or monthly), prepare your documents in advance, and confirm whether language support is available. The company is often assigned by the agent, but you still have the right to ask clear questions and get everything in writing before you sign.

This article is general practical information, not legal, financial, or immigration advice, and fees and rules can change — always confirm the latest details on the official company or agency materials before signing. With a little preparation, the screening process is usually straightforward, and many landlords are genuinely happy to welcome reliable foreign tenants. You are closer to your new home than you think.

Frequently Asked Questions (FAQ)

Do I need a personal guarantor to rent an apartment in Japan as a foreigner?

No — most foreign residents use a guarantee company instead of a personal guarantor. A guarantee company acts as a paid substitute, covering your rent to the landlord if you miss a payment, and then collecting that amount from you.

How much does a guarantee company typically charge in Japan?

The initial fee is often around 50% to 100% of one month's rent, though some companies charge a lower upfront amount and instead take a small percentage of rent each month. There is usually also an annual renewal fee, sometimes around 10,000 yen, but fees vary by company and property — always confirm the exact figures in writing before signing.

What documents do I need to apply through a guarantee company in Japan?

You will generally need your residence card (front and back), your passport, proof of income such as pay slips or an employment contract, and a Japanese bank account for rent withdrawal. An emergency contact and proof of employment or student enrolment are also commonly requested.

Can I choose which guarantee company to use when renting in Japan?

In most cases the guarantee company is assigned by the real estate agent or landlord rather than chosen by you. However, you can still ask questions about the fee structure, renewal terms, and whether English-language support is available before you sign anything.

What to do next

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