Guarantor vs Guarantor Company in Japan (保証人・保証会社): What You’ll Actually Need

By Ibuki — Affarah Friendly Homes · 2025-06-15

Guarantor vs Guarantor Company in Japan: What You’ll Actually Need (and What to Ask)

If you’re renting in Japan, you’ll almost always hit one of these terms:
連帯保証人 (rentai hoshounin) or 保証会社 (hoshou gaisha).

They exist for one simple reason. The landlord wants rent to be paid even if life goes sideways.

What trips people up is timing. Agents often explain this late, after you’ve already chosen a property. Then you find out you need an extra person, extra screening, and extra fees—fast.

This guide makes it clean. You’ll know the difference, what it costs, what can go wrong, and what to ask before you apply.

First: don’t mix up these three roles

Before we compare guarantors, it helps to separate three things people confuse:

  1. Emergency contact (緊急連絡先)
    This is “who can we call if there’s a leak and you don’t answer.” It’s about reachability.

  2. Personal guarantor (連帯保証人)
    This is a person who may be legally responsible for unpaid rent and other obligations in the contract.

  3. Guarantor company (保証会社)
    This is a paid service that takes on that guarantee function.

You can have an emergency contact and a guarantor company. That’s common. You can also have a personal guarantor, but many properties still require a guarantor company anyway.

Info Byte: Japan’s official “Guide to Living in Japan” notes that private rentals typically require a joint surety (guarantor), and you may also use a guarantor company depending on the situation.

Option A: Personal guarantor (連帯保証人) — powerful, risky, often hard

A personal guarantor in Japan is typically a joint-and-several guarantor. That’s the serious version. In many cases, the landlord can demand payment from the guarantor if rent is unpaid.

That’s why people hesitate to do it. It’s not a “reference.” It’s real liability.

The second reality: many landlords have preferences about who counts. Often they want a guarantor who:

  • has stable income,
  • lives in Japan,
  • can communicate in Japanese,
  • and has a relationship strong enough that they will actually take responsibility.

For foreign renters, this can be tough. Many people simply don’t have a suitable guarantor in Japan. Even if you do, the landlord may still prefer a company guarantee because it’s standardized.

A quiet legal detail that matters (especially after 2020)

After the Civil Code reforms, contracts involving personal guarantors often include a clearly stated maximum liability amount (極度額). You may see a dedicated box/line for this in rental contract templates.

In plain English: the paperwork is more explicit now, and some guarantors get cold feet once they see a number in writing. This is one reason the market has leaned harder toward guarantor companies.

Option B: Guarantor company (保証会社) — common, paid, and usually faster

A guarantor company is a paid service that backs the landlord if rent is unpaid. If you miss payment, the company may pay the landlord first and then pursue you for reimbursement, depending on the contract terms.

The reason it’s everywhere is simple: it standardizes risk. The landlord gets predictable procedures. The agent gets a smoother process. And the tenant doesn’t need to find a local guarantor.

It’s also not some informal “agent preference.” The government recognizes the role of rent-debt guarantee providers and created a national registration system for them in 2017. There is even an official symbol mark intended to help people identify registered providers.

Info Byte: Japan’s MLIT (Ministry of Land, Infrastructure, Transport and Tourism) has stated that usage of institutional rent guarantees has grown, and it introduced a national registration system for rent-debt guarantor providers.

Screening: who is actually judging you?

With many properties, the guarantor company’s screening becomes the key gate. That’s why you’ll hear agents say: “If the guarantor company says no, this unit is a no.”

In practice, screening tends to focus on:

  • identity + residency status,
  • income stability vs rent,
  • ability to be contacted quickly,
  • and overall “low drama” signals (clean application, consistent details).

This is why a clean document pack matters. You’re not only convincing a landlord. You’re convincing a third party that does this all day.

Costs: what you might pay (and what to confirm)

Guarantor company pricing varies by provider and plan. But the fee structure often looks like one of these:

  1. Initial % fee + annual renewal
    Example disclosures commonly show initial fees around 50% of monthly rent plus an annual renewal fee (e.g., around ¥10,000–¥13,000/year).

  2. Initial % fee + monthly fee
    Some listings disclose an initial fee around 50% plus a monthly fee (often around 1% of the rent/total monthly charges).

  3. No personal guarantor → higher rate
    Some providers price “no personal guarantor” plans higher than “with a personal guarantor.”

Here’s a simple comparison view:

Item Personal guarantor Guarantor company
Upfront cost Usually none Often yes (initial guarantee fee)
Ongoing cost None Renewal fee and/or monthly fee
Speed Depends on the person Often faster once documents are ready
Common for foreign renters Sometimes difficult Very common
Main risk High risk for guarantor Strict collections if you fall behind

The “real rent” idea (how to budget properly)

When you compare apartments, don’t just compare base rent. Compare:

  • rent + management fee,
  • plus guarantee monthly fee (if any),
  • plus annual renewal averaged monthly.

That’s the number that decides whether the apartment actually fits your lifestyle.

What to ask your agent (copy/paste)

These questions save you from surprises later:

  1. Which guarantor company is required for this unit? (company name)
  2. What are the exact fees?
  • initial fee (¥ or %)
  • renewal fee (¥) and frequency
  • monthly fee (if any)
  1. Is a personal guarantor accepted instead of the company?
    If yes, what are the requirements for the guarantor?
  2. Who makes the final approval decision?
    landlord / management company / guarantor company
  3. What causes rejection most often for this guarantor company?
    (Agents often know patterns.)
  4. What happens if rent is late by a few days?
    process, contact method, extra charges

Info Byte: If the agent can’t explain fees clearly, treat that as a signal. You’re not being picky. You’re being responsible.

Red flags (slow down if you see these)

  • Fees are described as “standard” but no numbers are shown.
  • Renewal fees or monthly fees are unclear.
  • You’re asked to sign something without seeing the guarantee terms.
  • The guarantor agreement is separate, but they wave it away as “not important.”

If you feel rushed, ask for a written breakdown. A good agent can provide it.

The practical strategy for foreign renters

If you want to get approved faster with less stress, aim for simplicity.

Best moves:

  • Target listings that openly accept guarantor company screening.
  • Keep your rent conservative relative to income.
  • Prepare your document pack before you view apartments.
  • Use an emergency contact who reliably answers (Japanese-speaking helps).

If you don’t have a good emergency contact:

  • Ask if your workplace contact is acceptable (sometimes yes).
  • Ask if a paid support service exists in your ward/city (some municipalities have systems, depending on area and tenant profile).

If you’re rejected once:

  • Don’t spiral. Ask the agent what failed (income ratio, document mismatch, contact risk).
  • Apply to a different building with a different management company or guarantor provider.
  • Adjust the rent target slightly and try again.

Related reading (Affarah)

(If these aren’t published yet, keep as TODOs and link later.)

  • Upfront costs of renting in Japan
  • Deposit, key money & agency fee
  • Documents you need to rent in Japan
  • Questions to ask at every viewing

Sources (neutral / official where possible)

  • MOFA: Guide to Living in Japan (private rentals / guarantor note): https://www.mofa.go.jp/j_info/visit/visa/pdfs/guide_living_en.pdf
  • MLIT: Rent-debt guarantor registration system (overview / materials): https://www.mlit.go.jp/report/press/house07_hh_000176.html
  • MLIT: Symbol mark for registered rent-debt guarantor providers: https://www.mlit.go.jp/report/press/house07_hh_000203.html
  • MLIT: Rental housing standard contract templates (includes “rent-debt guarantor type”): https://www.mlit.go.jp/jutakukentiku/house/jutakukentiku_house_tk3_000023.html
  • Example fee disclosures in listings (to see how fees are stated in practice):
  • SUUMO listing example (initial % + monthly %): https://gakusei.suumo.jp/chintai/bc_100476389273/
  • LIFULL HOME'S listing example (annual renewal fee style): https://www.homes.co.jp/chintai/b-31040600109879/