Guide

Renting in Japan: Key Money, Guarantors and the Fees Nobody Warns You About

Why move-in costs surprise everyone

Japanese rentals front-load their costs. Beyond the first month's rent, a typical contract can include a deposit (shikikin — refundable minus cleaning/repairs), key money (reikin — a customary non-refundable payment to the landlord), an agency fee, and a guarantor-company fee. Not every listing has every fee — zero-key-money properties are common now — but you should read every line item before you fall in love with a room.

The guarantor system

Most landlords require a guarantor who is liable if you can't pay. Traditionally this was a Japanese relative; today the standard solution is a guarantor company that charges a fee to play that role, and many buildings simply require one. As a foreigner you should assume a guarantor company will be part of your contract and treat its fee as a normal cost of renting.

What landlords screen for

Stable income, visa status and length of stay, and communication ability (directly or through a bilingual agency). Rejections happen and are frustrating; the effective countermeasures are documented income, a guarantor company, and agencies that specialise in foreign residents.

Reading a listing like a local

Japanese layouts are written as 1K, 1DK, 1LDK and so on — the number is bedrooms, and the letters flag a kitchen (K), dining-kitchen (DK) or living-dining-kitchen (LDK). Floor area is in square metres, and the walk time to the nearest station is printed on every listing — it is the single most price-relevant line after rent itself.

The honest rule of thumb

Budget move-in cash of several months' rent, confirm which fees are refundable, and get the fee table in writing before contract day. The system runs on paperwork, and paperwork is your friend: what is written is what happens.

Want the mechanics behind the deposit and the guarantor company?

This page is the map. For how deposit deductions are actually decided (and legally limited), and how guarantor-company underwriting works, see our deep dive on move-in costs.

FAQ

What is key money (reikin)?
A customary non-refundable payment to the landlord at contract time, separate from the deposit. It is not universal — listings without key money are increasingly common.
Do I need a Japanese guarantor to rent?
Most contracts require a guarantor, and the standard modern solution is a paid guarantor company — many buildings require one regardless of nationality. Assume it as a normal cost.
What does 1LDK mean?
One bedroom plus a living-dining-kitchen space. The number counts bedrooms; K/DK/LDK describes the shared space (kitchen / dining-kitchen / living-dining-kitchen).
SUMIKA Editors
  • Japan-based, Japanese-language primary sources
  • No listings, no brokerage — neutrality is the product
  • Verified-claims editorial policy (as_of dating, official sources)

An independent editorial team based in Japan. We sell nothing and list nothing — we verify processes, costs and rules against official Japanese sources and say plainly what is uncertain. Nothing here is legal, tax or investment advice.

This article is general information, not legal, tax or investment advice. Rules, taxes and procedures change and every situation differs — confirm with the official sources linked here and consult a licensed professional (lawyer, tax accountant, judicial scrivener or licensed agent) for your own case. We sell nothing and list no properties (see /how-we-review).