Why capital gains tax matters more than most investors realise
Japan's capital gains tax on real estate is not unusually high compared to other developed markets. But it has several features that, if not modelled correctly at acquisition, materially overstate total return. The most important of these are: the five-year holding period rule that governs the applicable rate, the interaction between depreciation claimed during ownership and the taxable gain on exit, and the 10.21% withholding obligation imposed on the buyer at closing.
Investors who model their exit simply as "sale price minus purchase price" will significantly underestimate the tax cost. The correct calculation involves adjusted cost basis, accumulated depreciation, and the rate applicable to the actual holding period. This guide covers each element in sequence.
The two-rate structure: five years is the critical threshold
Japan applies two different tax rates to capital gains on real property, depending on the holding period measured as of the date of sale (not the date of purchase agreement):
- Short-term gains — held 5 years or less: The combined rate is approximately 39.63%, comprising 30% national income tax, 9% local inhabitant tax, and the 0.63% recovery surtax. For non-residents who are not subject to Japanese inhabitant tax, the effective rate on the national component is approximately 30.63%.
- Long-term gains — held more than 5 years: The combined rate drops to approximately 20.315%, comprising 15% national income tax, 5% local inhabitant tax, and the 0.315% surtax. For non-residents, the applicable national rate is approximately 15.315%.
The practical implication is stark: selling in year five instead of year six roughly doubles the tax rate on the gain. This is the primary reason that serious Tokyo residential investors rarely plan for exits inside a five-year window. The short-term rate is simply punitive, and the combined transaction cost round-trip (6–8%) plus a 30%+ tax on gains makes short holding periods very difficult to justify on return terms.
Withholding at source: what happens at closing
When a non-resident sells Japanese real property, the buyer is legally required to withhold 10.21% of the gross sale price and remit it to the tax authority within one month of closing. This is not the final tax — it is a prepayment on account.
The withholding applies to the full sale price, not the gain. On a ¥30,000,000 sale, the buyer withholds ¥3,063,000 regardless of what the seller paid for the property originally or what gain has been realised.
After the withholding, the seller files a Japanese income tax return (kakutei shinkoku) for the year of sale. The actual tax liability is calculated based on the taxable gain, not the sale price. If the final tax owed is less than the withheld amount — which is common, since 10.21% of the sale price often exceeds the applicable rate on the gain — the seller receives a refund from the Japanese tax authority. If the tax owed exceeds the withholding, the balance is paid with the return.
There is an exemption from the buyer's withholding obligation in two cases: (1) when the sale price is ¥100,000,000 or less and the buyer intends to use the property as their own residence, or (2) when the seller is a resident of Japan. For most investment property sales between two non-resident parties at prices above ¥100M, the withholding obligation is active. Buyers of Japanese property from non-residents are often unaware of this obligation; both parties need a lawyer or scrivener who understands non-resident transaction mechanics.
How the taxable gain is calculated
The taxable gain is not simply: sale price minus original purchase price. The Japanese calculation adjusts for several factors:
Taxable gain = Sale price − Adjusted acquisition cost − Allowable disposal costs
Each component deserves attention:
Adjusted acquisition cost
The acquisition cost is the original purchase price plus all costs directly related to the purchase (brokerage commission, registration tax, judicial scrivener fees, and the real estate acquisition tax). However, for a property that has been rented out, the building component of the acquisition cost must be reduced by the cumulative depreciation claimed during the holding period.
This is the depreciation recapture mechanism. If you purchased a property with a building value of ¥10,000,000 and claimed depreciation at 2.13% per year (the standard rate for a 47-year useful life reinforced concrete building) for 8 years, you have claimed ¥1,704,000 in depreciation. Your adjusted building cost for gain calculation purposes is ¥10,000,000 minus ¥1,704,000 = ¥8,296,000. The depreciation you claimed as a deduction against rental income is effectively recaptured in the gain on exit.
For investors who purchased older buildings and claimed accelerated depreciation (where the building age exceeded the statutory useful life, resulting in depreciation rates of up to 11.1% per year over a 9-year period), this recapture effect is much larger and must be explicitly modelled in the exit calculation.
Allowable disposal costs
Costs directly associated with the disposal reduce the taxable gain. These include the brokerage commission paid by the seller (up to 3% of sale price plus ¥60,000, plus consumption tax), notarial fees, and any documented costs of preparing the property for sale (repairs or renovations that were necessary to complete the transaction, not normal maintenance). Capital improvements made during the holding period can also be added to the acquisition cost, provided they are documented.
A worked example
To make this concrete, consider the following scenario:
- Original purchase price: ¥18,000,000
- Acquisition costs at purchase: ¥900,000 (brokerage, taxes, scrivener)
- Building component of original purchase (60% of price): ¥10,800,000
- Holding period: 7 years (long-term rate applies)
- Depreciation claimed: 2.13% × ¥10,800,000 × 7 years = ¥1,609,560
- Adjusted acquisition cost: ¥18,000,000 + ¥900,000 − ¥1,609,560 = ¥17,290,440
- Sale price: ¥22,000,000
- Disposal costs: ¥726,000 (brokerage at 3% + fees)
- Taxable gain: ¥22,000,000 − ¥17,290,440 − ¥726,000 = ¥3,983,560
- Tax (long-term rate, non-resident, national component 15.315%): approximately ¥610,000
- Withholding already paid at closing (10.21% × ¥22,000,000): ¥2,246,200
- Refund due from tax authority: ¥2,246,200 − ¥610,000 = ¥1,636,200
The net proceeds to the seller are: ¥22,000,000 − ¥726,000 (disposal costs) − ¥610,000 (final tax) = ¥20,664,000. Against an all-in cost basis of ¥18,900,000 (purchase price plus acquisition costs), the total pre-income-tax capital gain is ¥1,764,000. Add rental income received net of tax over the 7-year period for total return.
Note that the refund of ¥1,636,200 is received after filing the tax return — typically 3–6 months after the end of the tax year in which the sale occurred. Cash flow planning must account for this timing gap.
Treaty implications for different nationalities
Japan's income tax treaties generally grant Japan the primary right to tax gains on Japanese real property. This means the treaty does not typically reduce the Japanese capital gains rate itself. The benefit of the treaty is that the home country provides a credit or exemption for the Japanese tax paid, avoiding double taxation.
- US investors: The US taxes worldwide income for citizens and residents. The Japan-US treaty allows a foreign tax credit for Japanese capital gains tax paid, offsetting US tax liability dollar-for-dollar up to the US tax amount on the same gain. US capital gains rates (currently 20% for long-term gains at the highest federal bracket) are lower than Japan's long-term rate, so the Japan tax may exceed the US credit limit.
- French investors: Under the Japan-France treaty, France applies the exemption with progression method for gains on Japanese real property. The gain is not taxed in France but is taken into account in calculating the applicable French marginal rate on other income. For high-income investors, this is broadly neutral.
- UK investors: The Japan-UK treaty provides for credit relief. UK capital gains tax (currently 24% for residential property at higher rates) is applied against a credit for Japanese tax paid.
- Singapore investors: Singapore does not tax capital gains domestically. The gain is subject only to Japanese tax. No double taxation issue arises.
- German investors: Germany applies the exemption with progression method, similar to France. Japanese property gains are excluded from German taxable income.
Key rules for exit modelling
- Hold for more than five years to access the long-term rate. The break between year 5 and year 6 is the single most important tax planning variable at exit.
- Track depreciation claimed from year one. The adjusted acquisition cost depends on cumulative depreciation, and an error here can produce a significantly wrong gain calculation.
- Budget for the withholding cash flow gap. At closing, 10.21% of the sale price is withheld. The refund arrives months later after your tax return is processed. Plan accordingly.
- Document all capital improvements. Any renovations or improvements during the holding period that are capital in nature (not repairs) can be added to the acquisition cost, reducing the taxable gain. Keep all invoices.
- Use a bilingual zeirishi. The non-resident capital gains filing is not a standard form — it requires depreciation schedules, original purchase documents, and a reconciliation of the withholding to the actual liability. This is not a self-service exercise.
How this fits into the full tax picture
Capital gains tax is one layer of a broader Japanese tax framework for non-resident investors. The full picture also includes acquisition taxes at purchase (approximately 4–6% of assessed value), annual holding taxes (approximately 1.7% of assessed value per year), rental income tax during the holding period (20.42% withholding on gross rent, or lower on net income with a tax representative), and inheritance tax risk for larger portfolios or longer holding periods.
For a complete breakdown of all tax obligations across the investment lifecycle, see our complete guide to Japan real estate tax for non-residents.
Tokyo Insights includes tax modelling in its deal advisory service. If you are evaluating a specific Tokyo acquisition and want to understand the after-tax return under your specific nationality, holding period and leverage structure, we can build this into your underwriting review.
Frequently asked questions
How much capital gains tax do foreigners pay on Japanese real estate?
It depends on how long you hold the property. For properties held more than five years (long-term), the combined rate is approximately 20.315% (15% national income tax + 5% inhabitant tax + 0.315% surtax). Non-residents not subject to Japanese inhabitant tax pay approximately 15.315% on the national component. For properties held five years or less (short-term), the combined rate rises to approximately39.63%. The five-year threshold is measured as of the date of sale, not the date the purchase agreement is signed.
What is Japan's 5-year rule for property capital gains?
Japan applies a two-tier capital gains tax regime based on holding period. If you sell real property after holding it for more than five full years, the long-term rate (approximately 20.315%) applies. If you sell at or before the five-year mark, the short-term rate (approximately 39.63%) applies. The holding period is calculated to the date of transfer (closing), not the date you signed the purchase agreement. This means an investor who purchases in March 2021 and sells in March 2026 — exactly five years later — is still subject to the short-term rate. The sale must occur after 5 years and 1 day to qualify as long-term.
How does the 10.21% withholding work when selling Japanese property as a non-resident?
When a non-resident sells Japanese real property, the buyer is legally obligated to withhold 10.21% of the gross sale price and remit it to the Japanese tax authority within one month of closing. This withholding is calculated on the total sale price — not the gain. It is a prepayment on account, not the final tax. After closing, the seller files a Japanese income tax return for the year of sale. If the actual tax owed (calculated on the net taxable gain) is less than the amount withheld — which is common — the seller receives a refund. If it is more, the seller pays the balance. The refund typically takes 3–6 months to arrive after the return is filed.
Can non-residents deduct depreciation and expenses from capital gains in Japan?
Yes, with an important distinction. Allowable disposal costs (agent commission, notarial fees, documented sale preparation costs) reduce the taxable gain directly. Capital improvements made during the holding period can be added to the acquisition cost. However, depreciation claimed during the rental period reduces the acquisition cost — it does not add to it. This is the depreciation recapture mechanism: the cumulative depreciation deducted against rental income is effectively added back into the gain calculation on exit. Investors who claimed significant depreciation on older buildings should model this carefully before assuming a low tax on exit.
Is there double taxation on Japanese property gains for foreign investors?
Japan has tax treaties with most major investor home countries that address this. Japan retains the primary right to tax gains on Japanese real property under virtually all its treaties. The home country then either provides a credit for Japanese tax paid (US, UK) or exempts the Japan-sourced gain from domestic taxation (France, Germany). Singapore investors benefit from the cleanest outcome: Singapore does not tax capital gains domestically, so only Japanese tax applies. US investors should note that the Japan long-term rate (15.315% national) can exceed the US federal long-term capital gains rate, potentially limiting the foreign tax credit.
What happens if I sell Japanese property before 5 years?
The short-term rate of approximately 39.63% applies to the taxable gain. Combined with transaction costs (seller's agent commission of approximately 3%, plus registration and other fees) and the buyer's agent costs already paid at purchase, the total round-trip friction on a short hold is typically 45–50% of the gain — making short holding periods very difficult to justify on return grounds. There is no exemption or reduced rate for short-term gains based on investor nationality, treaty status, or the nature of the property. The only way to access the long-term rate is to hold for more than five years.
Official sources
- National Tax Agency (NTA) — Land and building transfer income tax
- NTA — Income tax rates for non-residents on real property gains
- NTA — Withholding tax on real property purchases from non-residents (10.21%)
Related guides
- Acquisition costs for foreign investors in Japan — the upfront cost stack before you hold
- Ongoing taxes and running costs — annual property tax, management fees, and net yield impact
- Financing costs and their impact on returns — how leverage changes your after-tax model
- Japan real estate tax for non-residents — the complete multi-layer tax guide
- Japan real estate exit strategy — timing the 5-year threshold, depreciation recapture and exit planning