How Japan’s Vacant Home Tax Changes Affect Landlords

Three years ago, one of my nine rental houses sat empty for 14 months between tenants, and I got a letter from city hall asking me to explain why. That letter is exactly the kind of attention landlords in Japan need to avoid right now, because the vacant home tax rules changed in 2023, and a badly timed vacancy can now cost you up to six times more in fixed asset tax than before.

I have been self-managing rental property in Japan for over 15 years, and I have never seen a tax rule shift the math on holding an empty unit as fast as this one did. Here is what actually changed, what it means for your bottom line, and the checklist I now run on every property that sits vacant for more than a couple of months.

What actually changed in the vacant home tax rules

The old system worked on a straightforward incentive: if a residential building stood on your land, you got a discount of up to 1/6 on the land portion of your fixed asset tax (koteishisanzei), and up to 1/3 for larger lots. That discount existed for decades and made it financially painless to leave a house standing even if nobody lived in it. The 2023 revision to the Vacant House Special Measures Act closed that loophole for two categories of property: tokutei akiya (specified vacant houses, meaning ones that are structurally dangerous or a public nuisance) and the newer kanri fujuubun akiya (management-insufficient vacant houses), which covers properties that are simply neglected, with peeling paint, overgrown yards, or broken fences, even if the structure itself is not collapsing.

Before 2023, only the worst tokutei akiya cases lost the tax discount. Now the bar is much lower. A property can get flagged as kanri fujuubun akiya after roughly one inspection cycle showing neglect, and once that designation lands, the local government can strip the residential land discount the very next tax year.

The real numbers behind the 6x jump

Here is a scenario close to what I dealt with. Say a rental house sits on 120 square meters of land assessed at 18,000,000 yen. Under the old 1/6 discount, the taxable base for the land portion drops to 3,000,000 yen, and at the standard 1.4 percent municipal rate, that is 42,000 yen a year in land tax. Lose the discount, and the taxable base jumps back to the full 18,000,000 yen, pushing the land tax to 252,000 yen a year. That is a 210,000 yen swing on land tax alone, on top of whatever tax you already owe on the building itself.

Multiply that across a portfolio and it stops being a rounding error. I ran the numbers across all nine of my properties in 2024 and found that even one unit losing the discount would have wiped out about 40 percent of that property’s annual net cash flow.

How cities decide who gets the notice

My city, like most, runs an annual or twice-yearly visual survey of properties flagged by neighbors or picked up in aerial photo comparisons. The things that trigger a first warning letter are almost always cosmetic: grass over 50 centimeters tall, a mailbox stuffed with unclaimed mail, broken window glass, or a fence leaning more than a few degrees off vertical. You typically get one advisory notice first, then a formal guidance letter, and only after ignoring both does a property get the specified or management-insufficient designation that kills the tax discount. In my experience that whole process, from first letter to designation, can move in as little as 8 to 10 months if you do not respond.

What I do to keep every property off the list

Since the rule change, I treat vacancy management as seriously as I treat rent collection. Here is my checklist for any unit that goes empty for more than 60 days:

• Visit or have someone visit the property at least once every 3 weeks to cut grass, clear mail, and check for obvious damage.
• Keep at least one light on a timer and the utilities connected, since a fully dead-looking house draws more neighbor complaints.
• Photograph the exterior every visit and date-stamp the files, so I have proof of upkeep if a notice ever arrives.
• Fix small exterior issues immediately, since a 15,000 yen fence repair now is cheaper than a tax reclassification later.
• List the property with at least two agents simultaneously once vacancy passes 90 days, to shorten the empty period.

That routine costs me roughly 8,000 to 12,000 yen a month per vacant property in gas and small maintenance supplies, which is nothing compared to the 210,000 yen swing I mentioned earlier.

If you already received a notice

Do not ignore the first letter, and do not wait for the second one either. Call the city housing division directly, ask exactly which items triggered the notice, and fix them within 30 days if you can. Most municipalities will re-inspect on request once you have made visible repairs, and a documented fix within that window has been enough to reverse a preliminary designation for two of my properties over the past two years. Once a property is formally designated as tokutei akiya or kanri fujuubun akiya, though, reversing it usually takes a full property renovation and a follow-up inspection, not just a quick cleanup.

Why this matters even if you rent successfully

The trap here is not for landlords with tenants in place, it is for landlords between tenants, doing a slow renovation, or holding an inherited property while deciding what to do with it. A gap of even 4 to 6 months without active upkeep is enough to draw attention in some municipalities now, where five years ago it would have gone unnoticed. If you own more than one property in Japan, I would build a vacancy-inspection habit into your routine the same way you budget for repairs, because this tax change rewards visible activity and punishes anything that looks abandoned.

That is the approach I now use across all 9 of my properties, and it has kept every one of them off the vacant house list since the rule changed.

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