Understanding Key Money Customs in Japanese Leasing

When I signed the lease for my very first rental property 16 years ago, I remember staring at the move-in cost sheet and wondering why I owed the equivalent of two months rent before I had even picked up a set of keys. That extra charge was key money, or reikin in Japanese, and unlike a deposit it never comes back. Now that I own and self-manage 9 rental units, tenants ask me about this fee more than almost anything else, so let me walk through what it really is and how it plays out from both sides of the lease.

Reikin trips up a lot of renters, especially anyone new to the Japanese market, because it looks like a deposit on paper but behaves nothing like one. Get this wrong and you can lose 100,000 yen or more on a single move without realizing you never had to pay it.

What Key Money Actually Is

Reikin literally translates to gratitude money, and that is exactly what it was designed to be. Back in the postwar housing shortage, landlords held all the leverage, and tenants paid reikin essentially as a thank-you for being allowed to rent a unit at all. Once you hand it over, it belongs to the landlord permanently. Compare that to shikikin, the security deposit, which is refundable minus any repair costs when you move out. On a typical unit renting for 85,000 yen a month, one month of reikin means writing an 85,000 yen check that you will never see again, on top of the deposit, agent commission, and often fire insurance.

How Much I Actually Charge (and Why)

Across my 9 properties, I charge reikin on 5 units and skip it entirely on the other 4. The difference comes down to demand, not sentiment. My units near the train station rent themselves, so I can ask for one month of reikin without scaring anyone off. The two older units farther out are a harder sell, and I learned that lesson the expensive way: one of them sat vacant for 3 months while I insisted on a full month of key money. The moment I dropped it to zero, I had a signed tenant within 2 weeks. That gap in vacancy cost me roughly 3 times what the reikin would have earned, so now I treat it as a lever I pull based on how fast a unit is moving, not a fee I charge on principle.

Regional Differences and Market Trends

Reikin customs vary a surprising amount depending on where in Japan you are renting. In the Kanto region, including Tokyo, one to two months of key money has historically been standard practice. In the Kansai region, landlords have traditionally leaned more on a larger deposit and skipped reikin altogether, so the total move-in cost ends up similar but the money is structured differently. The broader trend over the last decade has been a slow decline in reikin nationwide. When I started managing properties, maybe 1 in 10 listings in my area advertised zero reikin as a selling point. Today it is closer to 3 in 10, and I expect that number to keep climbing as more landlords compete for a shrinking pool of long-term renters.

Renewal Fees Are a Separate Cost

Do not confuse reikin with koushinryo, the lease renewal fee, because they are billed at completely different times. Reikin is a one-time charge at move-in. Koushinryo shows up again every time a tenant renews their contract, which in most of my leases happens every 2 years. On one of my units renting at 90,000 yen a month, the renewal fee runs a full month, so the tenant pays that same 90,000 yen again at the two-year mark just to keep living there. Japan’s Supreme Court upheld the legality of renewal fees back in 2011, as long as the amount and timing are spelled out clearly in the original contract, so this is not a fee you can talk your way out of after the fact. If you are comparing two units with similar rent, always ask about the renewal fee schedule before signing, because a unit with zero reikin but a steep annual koushinryo can end up costing more over 4 or 5 years.

Negotiating Key Money as a Tenant

If you are the one signing the lease rather than collecting the rent, key money is often more negotiable than agents let on, especially outside the peak moving season of February through April. A few things I have seen work when a prospective tenant pushed back on one of my own listings:

• Ask directly whether the reikin is negotiable, particularly if the unit has been listed for more than a month or two.
• Offer a longer lease commitment, such as 2 years instead of 1, in exchange for dropping or halving the fee.
• Time your search for the slow rental season, roughly September through December, when landlords are more willing to waive fees to avoid a long vacancy.
• Watch for reikin zero campaigns that many agencies run heading into spring.
• Always compare total move-in cost across listings, not just the advertised monthly rent, since a zero reikin unit can still cost more once deposit and agent fees are added up.

I do not think reikin is going away entirely, but I have watched it shrink from an assumed 2 months to something closer to a negotiating chip over the 16 years I have been doing this. Treat it as one line item in a bigger move-in cost conversation rather than a fixed rule, and you will save yourself real money. That is the approach I use across all 9 of my properties, whether I am the one collecting the fee or explaining it to a nervous new tenant.

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