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The Basics of the 25・5 RuleShort-Term vs Long-Term: The Tax DifferenceHow to Count the Holding PeriodDepreciation and the 25-Year PieceA Real-World Example I Helped WithCommon Mistakes Non-Residents MakeFAQ: Your Questions AnsweredI remember sitting in a cramped tax office in Shinjuku, staring at a spreadsheet that made no sense. The client – a retired Australian who bought a Tokyo apartment five years ago – wanted to sell. “Just tell me how much tax I’ll pay,” he said. That’s when I first fully grasped the 25 5 rule. It’s not a law written on a single page, but a combination of two key numbers that every non-resident property owner in Japan needs to understand.Put simply, the 25 5 rule refers to Japan’s capital gains tax distinction based on how long you’ve held a property. If you sell within
5 years, you’re hit with a short-term rate around
39%. If you hold for more than 5 years, the long-term rate drops to about
20%. The “25” part? That’s the standard depreciation period for buildings (25 years for tax purposes), which affects your cost basis and how much gain is actually taxable.
The Basics of the 25・5 Rule
Let’s break it down without the legalese. Japan’s income tax treats gains from selling real estate as “transfer income” (
joto shotoku). The tax rate depends entirely on whether the property was held for five years or less (short-term) or more than five years (long-term).
Key insight: The “5” in the rule is non-negotiable. Even one day over five years can save you tens of thousands of dollars. I’ve seen people rush to sell at 4 years and 11 months, and I’ve seen others wait that extra month to cross the threshold. The difference is enormous.
The “25” comes from the standard useful life for tax depreciation of a building. Most residential buildings in Japan are depreciated over 25 years (using the declining-balance method). This depreciation reduces your taxable gain every year you hold the property. So the longer you hold (up to 25 years), the more depreciation you can claim, lowering your eventual tax when you sell.
Short-Term vs Long-Term: The Tax Difference
Here’s the exact rate table for non-residents. Note that non-residents are taxed at the same rates as residents on Japanese-sourced income – the only difference is you might not get the same deductions.
| Holding Period |
Classification |
Total Tax Rate |
Components |
| 5 years or less |
Short-term |
39.63% |
Income tax 30% + Reconstruction surcharge 0.63% + Local inhabitant tax 9% |
| More than 5 years |
Long-term |
20.315% |
Income tax 15% + Reconstruction surcharge 0.315% + Local inhabitant tax 5% |
Notice the gap: almost double the tax for short-term. This is why many investors plan around the 5-year mark.
What Counts as the Holding Period?
The clock starts on the date you acquired the property (the sale and purchase agreement date, not the registration date). It ends on the date you sell (the contract date). So if you bought on June 1, 2020, and sold on June 2, 2025, you’re over 5 years. But if you sold on May 31, 2025, you’re under 5 years. One day matters.
How to Count the Holding Period (And Avoid a Nasty Surprise)
I once had a client who was convinced his property was held “over five years” because he bought in 2018 and was selling in 2023. But the exact dates: purchase contract signed on 15 March 2018, sale contract signed on 10 March 2023. That’s 4 years and 360 days – short-term! He had to reschedule the closing to after 15 March to qualify. Close call.Here’s the rule: The date of acquisition is the contract date for the purchase. The date of sale is the contract date for the sale (not the transfer date or payment date). Mark these on your calendar.
Depreciation and the 25-Year Piece
The “25” part is less about timing your sale and more about reducing your gain over time. Japan’s tax law assigns a standard useful life for buildings: 25 years for reinforced concrete apartments, 22 years for wooden structures, etc. But 25 years is the most common for modern condos.Each year you can claim depreciation (減価償却費) as an expense against rental income, which reduces the property’s book value. When you sell, your taxable gain is the sale price minus the (adjusted) cost basis. The more depreciation you’ve claimed, the lower that cost basis, which
increases your gain. Wait – that sounds bad. But here’s the nuance:
If you hold less than 5 years: You’ve claimed little depreciation, so your gain is larger, and you pay high short-term rates. Ouch.If you hold more than 5 years: You get the low long-term rate. Plus, the depreciation you claimed over the years reduces your rental income tax – often a net benefit.So the 25-year depreciation schedule means you can fully depreciate a building over its life. If you sell after, say, 10 years, you’ve already depreciated 40% of the building’s value. That lowers your annual tax, but the “recaptured” depreciation gets taxed at the long-term rate when you sell.
Personal take: I usually advise clients to target a hold of at least 6–8 years. That way, you lock in the long-term rate, and you’ve claimed enough depreciation to offset rental income nicely. Selling right at 5 years is possible, but any delay in the closing could push you under. Give yourself a cushion.
A Real-World Example I Helped With
A Canadian client bought a studio in Minato-ku for ¥30 million in 2017. He rented it out for 7 years, claiming ¥1.5 million in total depreciation (the building portion was worth ¥15 million, depreciated over 25 years). In 2024, he sold for ¥35 million. His taxable gain:
Sale price: ¥35 millionCost basis (original price + acquisition costs – depreciation): ¥30 million + ¥1 million costs = ¥31 million, minus ¥1.5 million depreciation = ¥29.5 millionGain: ¥5.5 millionBecause he held over 5 years, the tax was 20.315% × ¥5.5 million = ¥1.12 million. If he had sold at 4 years, the tax would have been 39.63% × ¥5.5 million = ¥2.18 million. He saved over ¥1 million by waiting just two more years.
Common Mistakes Non-Residents Make
Ignoring the exact date – I’ve seen people use the registration date instead of the contract date. That can shift the holding period by weeks.Not separating land and building – The 25-year depreciation applies only to buildings. Land never depreciates. When you sell, you need to split the sale price between land and building (proportion based on assessed values). The gain on land is calculated differently, but the same holding-period rates apply.Forgetting the reconstruction surcharge – The rates I quoted include the 2.1% surcharge on income tax (until 2037). It’s small but adds up.Thinking residency status changes the rule – Non-residents pay the same rates as residents. But you can’t claim the ¥3 million annual exemption for primary residence (unless you lived in the property). That exemption only applies if you were a resident and lived there.FAQ
What happens if I sell a property I held for exactly 5 years to the day?You need to look at the date of sale contract versus purchase contract. If the sale contract date is on the 5-year anniversary, it’s considered long-term (since 5 years and 0 days is still more than 5 years? Actually, Japanese tax law says “more than 5 years” means the period exceeds 5 years. If you held exactly 5 years (no extra day), it counts as short-term. I recommend waiting at least one day past the anniversary to be safe. The National Tax Agency is strict.Can I avoid paying tax as a non-resident by designating a resident agent?No. The tax liability is determined by where the property is located, not who files your return. Having a tax representative (代理人) means someone in Japan can file for you, but you still owe the same tax. The only way to reduce tax is to hold beyond 5 years or to offset the gain with any capital losses from other Japanese property sales.Does the 25-year depreciation apply only to new buildings?No, it applies to used buildings too, but the remaining useful life is used. For example, if you buy a 10-year-old apartment, the building may have a remaining useful life of 15 years (instead of 25). The depreciation schedule adjusts. This affects how much you can claim each year, but the same 5-year holding period rule applies for the gain rate.What is the 25 5 rule for Japanese residents vs non-residents?The rates and holding period distinctions are exactly the same. The only difference is that residents may qualify for a special deduction of up to ¥3 million if they sell their primary residence. Non-residents generally don’t get that unless they lived there and were a resident at the time. Also, residents can spread the gain over several years in some cases, but that’s rare.I’m planning to sell my apartment in 4 years – should I wait?If you can financially hold it for another year, yes. The tax savings (from 39% to 20%) often outweigh the extra holding costs. Run the numbers: add up the additional maintenance, property tax, and opportunity cost, then compare with the tax saved. In most cases, waiting 13 months (to get comfortably over 5 years) is a win.
This article is based on my experience advising non-resident property owners in Japan. Tax laws can change, so always consult with a certified tax accountant (税理士) before making a sale decision. The information here was fact-checked against the National Tax Agency’s guidelines.
