Should You Buy or Rent in Japan? The Real Math

The Japan difference 日本の不動産市場の特徴

If you come from the US, UK, Australia, or most Western countries, you have probably been told that buying a home is "always a good investment." In Japan, that conventional wisdom does not apply. The Japanese property market operates on fundamentally different principles, and understanding these differences is essential before you make a decision worth tens of millions of yen.

Properties depreciate, not appreciate. This is the single most important difference. In Japan, a building (上物 / uwamono) is treated as a depreciating asset — similar to a car. A new wooden house (木造 / mokuzō) has a legal useful life of 22 years for tax purposes, meaning it is considered worthless as a structure after that period. Reinforced concrete condos (RC造 / RC-zō) last longer — 47 years — but still lose value steadily. What retains or gains value is the land (土地 / tochi) beneath the building, not the building itself.

This means that when you buy a ¥40M condo in Tokyo, the building portion of your purchase is declining in value every single year. In most neighborhoods outside prime central Tokyo, you should expect your property's total market value to be lower in 10 years than what you paid — even if you maintain it perfectly.

Renovation resets value — sometimes. Unlike in the West where a well-maintained older home can command a premium, Japanese buyers overwhelmingly prefer new or near-new properties. "Scrap and build" (スクラップアンドビルド) remains the dominant approach: buy old property cheaply for the land, demolish the existing structure, and build new. This cultural preference further accelerates depreciation for existing buildings.

Exceptions exist. Central Tokyo (港区, 渋谷区, 千代田区), parts of central Osaka, and select desirable areas have seen significant price appreciation in recent years — driven by foreign investment, low interest rates, and limited supply. If you buy in a genuinely prime location, appreciation is possible. But for the vast majority of Japan, depreciation is the default.

Interest rates are incredibly low. Japan's mortgage rates are among the lowest in the world — variable rates around 0.3-0.5% and fixed rates around 1.0-1.8% (as of early 2026). This makes the monthly cost of buying surprisingly affordable compared to many other countries. However, low monthly payments do not offset depreciation losses if you sell too soon.

True cost of buying 購入の本当のコスト

The sticker price of a property in Japan is just the beginning. When you add up all the fees, taxes, and ongoing costs, the true cost of buying is typically 7-10% higher than the listed price at purchase, plus significant ongoing annual costs. Here is a complete breakdown.

Upfront costs (one-time)

Ongoing annual costs

The hidden cost: depreciation. Beyond the cash costs listed above, you must also factor in the decline in your property's market value. If you buy a ¥40M condo and it is worth ¥32M ten years later, that ¥8M loss is a very real cost of ownership — even though it never appears as a bill. This depreciation cost is the factor most commonly overlooked when comparing buying to renting.

The tax benefit: 住宅ローン控除. On the positive side, Japan offers a mortgage tax credit (住宅ローン控除 / jūtaku rōn kōjo) that directly reduces your income tax. For new homes, you can deduct 0.7% of the remaining loan balance each year for up to 13 years. On a ¥35M loan, that is up to ¥245,000/year in tax savings — a meaningful offset to the costs above. You must file 確定申告 in the first year to claim this. (租税特別措置法第41条)

True cost of renting 賃貸の本当のコスト

Renting in Japan comes with its own set of costs that differ significantly from other countries. Japan's rental system includes several fees that may seem unusual to newcomers, but are standard practice across the market.

Upfront costs (when signing a new lease)

Ongoing costs

The renter's advantage: flexibility. All of the rent you pay is "lost" — you build no equity. But in exchange, you gain something that has real financial value: flexibility. You can move for a better job, a bigger apartment, or a different neighborhood with relatively low switching costs. In a country where property depreciates, the ability to avoid being locked into a declining asset has measurable financial worth.

The renter's advantage: no maintenance risk. As a renter, the landlord bears the cost of major repairs — plumbing, structural issues, appliance replacement. As an owner, these costs are entirely your responsibility (or shared via 修繕積立金 for condos). A single major repair can cost hundreds of thousands of yen.

Break-even analysis 損益分岐点の計算

Let's do the real math. We will compare buying a ¥40,000,000 condo in Tokyo versus renting a comparable apartment at ¥150,000/month. These are realistic figures for a 60-70m2 apartment in a decent Tokyo neighborhood (not central, not suburbs — think areas like 中野, 杉並, 練馬, 大田区).

Assumptions

• ● Purchase price: ¥40,000,000 (condo/マンション)
• ● Down payment: ¥4,000,000 (10%)
• ● Mortgage: ¥36,000,000 at 0.5% variable, 35-year term
• ● Upfront buying costs: ¥3,500,000 (approximately 8.75% of price)
• ● Annual ownership costs: ¥700,000 (property tax + management fee + repair reserve)
• ● Depreciation: 1.5% per year on building value (conservative for RC condo)
• ● 住宅ローン控除: 0.7% of loan balance/yr for 13 years (tax credit)
• ● Monthly rent: ¥150,000 + ¥10,000 管理費
• ● 更新料: 1 month every 2 years
• ● Rent increase: 1% per year (modest assumption)
• ● Opportunity cost: Down payment + upfront costs invested at 4% annual return (e.g., NISA)

10-year cost comparison

The break-even depends on depreciation. If you are lucky enough to buy in an area where property values hold steady or appreciate, the break-even comes much sooner — potentially year 5-7. Conversely, in rural or declining areas where depreciation is steeper, buying may never break even compared to renting. The location of the property is the single largest variable in this equation.

Do not ignore opportunity cost. The ¥7.5M you lock up in a down payment and closing costs could be invested in a NISA account earning 4-6% annually. Over 10 years at 4%, that grows to roughly ¥11.1M — a gain of ¥3.6M. This "invisible" cost of buying is real money you forgo. Renters who invest their savings wisely can build substantial wealth without owning property.

Foreigner-specific considerations 外国人特有の注意点

Beyond the pure financial math, foreigners in Japan face additional considerations that Japanese nationals do not. These factors can significantly shift the buy-vs-rent calculation.

Getting a mortgage as a foreigner

Foreigners can absolutely get a mortgage (住宅ローン) in Japan — but the requirements and options vary depending on your residency status.

The "leaving Japan" risk

This is perhaps the single biggest foreigner-specific risk. If you buy a property in Japan and then need (or decide) to leave the country, you face a difficult situation:

• ● Forced sale at a loss: If you need to sell quickly, you will likely sell below market value. Add 仲介手数料 (3%+¥66K) and other selling costs, and you could face a significant loss — especially if you bought recently and the building has depreciated.
• ● Renting it out: You can convert your property to a rental, but managing it from overseas is complex — you will need a property management company (管理会社), and you must file Japanese tax returns on the rental income even after leaving Japan. Most mortgage contracts also prohibit renting without bank approval.
• ● Mortgage acceleration: Some mortgage contracts include clauses that require you to repay the loan in full if you leave Japan permanently. Check your loan contract carefully.
• ● Capital gains tax: If you sell at a profit (rare in the short term, but possible in prime areas), you will owe 譲渡所得税 — 39.63% for properties held under 5 years, or 20.315% for properties held over 5 years. The holding period is counted from January 1 of the year following acquisition. (租税特別措置法第31条, 第32条)

Language and process barriers

The entire property purchase process in Japan is conducted in Japanese. Key documents — the 重要事項説明書 (important matters explanation), 売買契約書 (purchase contract), and mortgage agreements — are lengthy legal documents written entirely in Japanese. By law, a licensed 宅地建物取引士 (real estate transaction specialist) must explain the 重要事項説明書 to you in person before you sign.

If your Japanese is not at a business/legal level, you will need either: (1) a bilingual real estate agent, (2) a professional interpreter, or (3) a bilingual lawyer to review documents. Budget ¥100,000-300,000 for professional translation and legal review — this is not the place to cut corners.

When to buy 購入が有利な場合

Despite everything above, buying can be the right decision under the right circumstances. Here are the conditions where buying makes financial and practical sense.

• ✓
  You plan to stay in Japan 10+ years — long enough to weather depreciation and recoup the upfront costs. The longer you stay, the more buying makes sense as you eliminate rent payments while building equity.
• ✓
  You have permanent residency (永住権) — giving you access to the best mortgage rates and terms. Without PR, your options are limited and more expensive.
• ✓
  You have a stable income and employment history — banks want to see 2-3+ years at the same company or a consistent freelance income. Job security matters more than income level.
• ✓
  You want a specific type of housing that is hard to rent — large family homes, properties with gardens, specific custom layouts. The rental market in Japan is dominated by standard apartment configurations. If you want something non-standard, buying (or building) may be your only option.
• ✓
  You value psychological stability — no landlord can ask you to leave. No 更新料 every 2 years. You can renovate, hang pictures, own pets — all things that are restricted or prohibited in most Japanese rentals. For families with children in local schools, the stability of homeownership is a meaningful non-financial benefit.
• ✓
  You are buying in a location with strong fundamentals — close to a major station, in an area with growing population, near good schools. Properties within 5 minutes of a station on a major line hold value far better than suburban or rural properties.
• ✓
  You want to take advantage of historically low interest rates — with variable rates at 0.3-0.5%, Japan offers some of the cheapest mortgage financing in the world. Combined with 住宅ローン控除 (0.7% tax credit on the loan balance), you are effectively being paid to borrow in the early years.

When to rent 賃貸が有利な場合

Renting is often the smarter financial choice in Japan, especially for foreigners whose future plans are uncertain. Here are the situations where renting clearly wins.

• ✓
  You are not sure you will stay in Japan long-term — if there is any realistic chance you will leave within 7 years, renting is almost certainly cheaper. The transaction costs of buying and selling, combined with depreciation, make short-term ownership very expensive.
• ✓
  You do not have permanent residency yet — without PR, you face limited and more expensive mortgage options. It may be worth waiting until you have PR before considering a purchase.
• ✓
  Your job or industry involves frequent relocation — if your company might transfer you to another city (or another country), being tied to a property is a liability, not an asset.
• ✓
  You would rather invest the money — the ¥7-10M you would spend on a down payment and closing costs could go into a NISA account, iDeCo, or other investments. The returns from a diversified investment portfolio have historically outperformed Japanese real estate for most properties outside prime Tokyo locations.
• ✓
  You value flexibility over stability — you want the freedom to upgrade, downsize, or move neighborhoods as your life changes. In Japan's renter-friendly market, this flexibility comes at a reasonable cost.
• ✓
  You have limited Japanese language ability — the complexity of property transactions, ongoing dealings with management associations (管理組合), and tax filing requirements (確定申告 for 住宅ローン控除 in the first year, 固定資産税 management) all add friction if you cannot read and communicate in Japanese.
• ✓
  You are still new to Japan — if you have lived in Japan for less than 2-3 years, you may not fully understand which neighborhoods you like, where you want to settle, or what type of housing suits your lifestyle. Renting allows you to explore without committing. Many long-term foreigners who bought early say they wished they had waited and chosen a different area.

Frequently asked questions よくある質問