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SUMMARY
Yes. Japanese home loans are getting expensive now by Japanese standards, although the change is much more advanced in fixed mortgages than in variable ones.
The shift is no longer theoretical. The Bank of Japan has moved its key overnight rate to around 1%, while a comparable MUFG variable mortgage structure has gone from 0.345% in early 2024 to roughly 1.245% today.
Variable borrowing still looks cheap internationally. A strong borrower can find offers around 1.1% to 1.3%, but that is already three or four times the mortgage rates many Japanese buyers became accustomed to during the ultra-low-rate era.
Fixed borrowing has repriced much more aggressively. Flat 35 is around 3.46%, while some ultra-long fixed bank mortgages are above 5%, making certainty unusually expensive compared with taking a variable rate.
That gap helps explain why 75% of recent borrowers still chose variable mortgages even though 73.7% expected rates to rise. Many households are not ignoring the risk. They are deciding that paying for protection upfront is simply too expensive.
The monthly impact becomes meaningful surprisingly quickly. A ¥50 million, 35-year mortgage rises from roughly ¥126,000 per month at 0.345% to about ¥147,000 at 1.245%, while a ¥100 million mortgage absorbs an increase of more than ¥40,000 per month.
The biggest vulnerability is not today's rate on its own but the combination of variable borrowing and large balances. Around half of surveyed borrowers also expressed some uncertainty about their understanding of interest-rate risk, which makes further repricing more important than the current payment figures suggest.
Existing homeowners can feel the squeeze later than new borrowers because variable rates and monthly payments do not always reset immediately. Repayment-smoothing rules can also leave the monthly debit unchanged while more of the payment quietly goes toward interest.
Japan's 0.7% mortgage tax deduction and intense bank competition still soften the adjustment, but neither makes borrowing almost free anymore. Longer 35-year and 40-year terms are doing something similar: they keep monthly payments manageable while allowing households to carry larger debts for longer.
Our conclusion is that Japan's cheap-mortgage era is ending in stages. Fixed mortgages are already expensive by modern Japanese standards, while variable mortgages remain attractive for financially resilient borrowers but are now well into the transition away from near-zero borrowing costs.
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Why are Japanese home loans getting more expensive now?
Japanese home loans are clearly getting more expensive now because the Bank of Japan's move away from ultra-low rates has finally reached ordinary mortgage borrowers.
The change has happened in stages. The Bank of Japan ended negative interest rates in 2024, continued tightening afterward, and currently guides the overnight rate at around 1%. For a country that spent years with policy rates around zero or below, that is a major break.
Mortgage rates have followed. MUFG gives us one of the cleanest examples because it publishes what would have happened to the same variable-rate structure over time. A borrower receiving a constant 2.13 percentage-point discount from the bank's base rate would have paid 0.345% in early 2024. That effective rate rose to 0.495%, then 0.745%, then 0.995%, and currently sits around 1.245%.
Fixed borrowing has climbed much faster. The standard Flat 35 rate for a 21-to-35-year mortgage is currently 3.46%. SMBC's published rate for a new ultra-long fixed mortgage running more than 20 years can exceed 5%.
This is already much more than a small normalization. Japan has gone from an environment where mortgage interest almost disappeared from the buying decision to one where the financing choice can change the monthly bill by tens of thousands of yen.
| Mortgage signal | Earlier level | Current level | What changed |
|---|---|---|---|
| BOJ policy setting | Around or below 0% for years | Around 1% | Ultra-low-rate era has ended |
| Comparable MUFG variable loan | 0.345% | About 1.245% | +0.90 percentage point |
| Flat 35, 21–35 years | Around high-1% range in early 2024 | 3.46% | Roughly doubled |
| SMBC ultra-long fixed, new loan | Around 3.3% in early 2025 for 20–35 years | Above 5% currently | Sharp fixed-rate repricing |
Are Japanese variable mortgage rates expensive today?
Japanese variable mortgage rates are still cheap today in absolute terms, although they no longer feel cheap by Japanese standards.
The best new-borrower offers remain surprisingly low. au Jibun Bank currently shows around 1.08% for qualifying borrowers aged 50 or below with a loan-to-value ratio of 80% or less. MUFG's refinancing offer is around 1.245%. Other major-bank and online-bank products broadly sit around the low-1% area for strong applicants, depending on the loan, insurance and borrower profile.
A mortgage around 1.1% would look extremely cheap in many countries. In Japan, buyers remember seeing rates around 0.3%, 0.4% or 0.5%.
That is why the same 1.1% can look cheap internationally and expensive locally.
MUFG's published example shows a rise from 0.345% to 1.245% for the same discount structure. The rate has increased more than threefold in percentage terms.
The cash impact is much smaller than that percentage sounds, but borrowers can no longer treat mortgage interest as almost irrelevant. Variable loans currently occupy an awkward middle ground: still objectively cheap, yet substantially more expensive than the loans Japanese households became used to.
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How much more does a Japanese mortgage cost each month now?
A typical large Japanese mortgage can already cost ¥20,000 to ¥30,000 more per month after the recent variable-rate increases.
Take a ¥50 million mortgage over 35 years. At 0.345%, the theoretical fully amortizing payment is about ¥126,000 a month. At 1.245%, it is roughly ¥147,000.
That adds around ¥20,500 every month, or close to ¥250,000 a year.
On a ¥70 million mortgage, the monthly increase is roughly ¥29,000.
That is the weird part of the current market. A move from 0.345% to 1.245% looks enormous when expressed as a percentage increase in the interest rate, while the actual household hit arrives more gradually.
The effect becomes much larger on the expensive apartments now common in Tokyo. Borrowing ¥80 million, ¥90 million or ¥100 million makes each additional quarter-point increasingly painful.
| 35-year mortgage | Payment around 0.345% | Payment around 1.245% | Extra per month |
|---|---|---|---|
| ¥30 million | ¥75,800 | ¥88,100 | +¥12,300 |
| ¥50 million | ¥126,400 | ¥146,900 | +¥20,500 |
| ¥70 million | ¥177,000 | ¥205,700 | +¥28,700 |
| ¥100 million | ¥252,800 | ¥293,900 | +¥41,100 |
Have fixed-rate mortgages in Japan become genuinely expensive?
Japanese fixed-rate mortgages have become genuinely expensive by recent Japanese standards, and the latest increases are still moving in the wrong direction for buyers.
Flat 35 is a good benchmark because it strips away some of the promotional noise around bank mortgages. The most common rate on a 21-to-35-year Flat 35 loan is currently 3.46% for loans at 90% loan-to-value or below, before any qualifying temporary reductions.
One period earlier, the same headline rate was 3.29%. Early in 2024, it was around the high-1% range.
The move in commercial-bank fixed loans has been even stronger. SMBC's published ultra-long fixed rate for a new mortgage lasting more than 20 and up to 35 years is currently 5.41%. At the start of 2025, the comparable published rate was 3.29%.
That is a rise of more than two percentage points in well under two years.
For Japanese households, 4% or 5% fixed borrowing is a completely different product from the cheap fixed mortgages available during the ultra-low-rate era. Buyers who want certainty are now paying heavily for it.
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Why is a fixed mortgage so much more expensive than a variable mortgage in Japan?
The gap between Japanese fixed and variable mortgages is huge right now because borrowers are being charged a large premium to lock today's financing cost for years.
Consider the choices available to a strong borrower. A competitive variable mortgage can still start around 1.1% to 1.3%. Flat 35 sits at 3.46% before applicable reductions. Some long fixed bank loans are above 5%.
That difference translates directly into affordability.
On a ¥50 million, 35-year loan, roughly 1.2% produces a monthly payment near ¥146,000. At 3.46%, the payment is around ¥205,000.
A buyer can therefore save close to ¥60,000 a month initially by choosing variable borrowing instead of a standard full-term fixed benchmark.
It also explains borrower behavior. Even people who think Japanese rates will rise can reasonably hesitate before paying an extra ¥700,000 or so per year for protection from that risk.
| Mortgage type | Indicative current rate | Approx. payment on ¥50m / 35 years | What the borrower gets |
|---|---|---|---|
| Competitive variable | Around 1.1–1.3% | Roughly ¥144k–¥148k | Low initial payment |
| Flat 35 | 3.46% | About ¥205k | Full-term certainty |
| SMBC ultra-long fixed | Above 5% on some terms | Above ¥270k at 5% | Long-term certainty at a high price |
Why are Japanese buyers still choosing variable mortgages if rates are rising?
Japanese buyers still overwhelmingly choose variable mortgages because the immediate saving is too large for most households to ignore.
The latest broad borrower survey from the Japan Housing Finance Agency found that 75% of recent borrowers had selected a variable-rate mortgage. Fixed-period loans accounted for 14.9%, while fully fixed loans represented 10.1%.
The direction has started to change. In the previous survey, variable borrowing accounted for 79%. Fixed products gained the four percentage points that variable lost.
That shift deserves attention because borrowers clearly know the environment has changed. In the same Housing Finance Agency survey, 73.7% expected mortgage rates to rise during the following year, up eight percentage points from the previous survey.
So Japanese households are increasingly worried about higher rates while still choosing variable loans three times out of four.
The explanation is mostly price. Moving immediately from roughly 1% variable borrowing toward 3% to 5% fixed borrowing is expensive enough that many households prefer to keep the risk themselves.
| Recent mortgage borrowers | Latest broad survey | Previous survey |
|---|---|---|
| Variable rate | 75.0% | 79.0% |
| Fixed-period rate | 14.9% | 12.2% |
| Fully fixed rate | 10.1% | 8.8% |
| Expect mortgage rates to rise | 73.7% | 65.7% |
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Do Japanese variable-rate borrowers really understand the risk?
A surprisingly large share of Japanese mortgage borrowers still do not fully understand how much their repayments could rise.
The same Japan Housing Finance Agency survey asked borrowers about interest-rate risk. Some 52% said they were either slightly unsure about their understanding, did not understand it well, or did not understand it at all.
Put beside the 75% variable-rate share, that is uncomfortable.
Choosing a variable mortgage can make perfect sense for a household with a modest balance, substantial savings, strong income or a clear plan to repay early. The risk grows when a buyer chooses the loan mainly because today's advertised monthly payment fits the budget.
Japan had years when variable mortgage rates barely moved. That experience trained a generation of borrowers to view the word “variable” as almost theoretical.
These days, the rate is actually varying.
Have existing Japanese homeowners felt the full mortgage-rate increase yet?
Many existing Japanese homeowners still have not felt the full rate increase in their monthly payment, so part of the mortgage squeeze is arriving with a delay.
Banks review variable rates on different schedules. Existing borrowers can therefore see higher benchmark rates months before their actual repayment changes.
Some Japanese mortgages also use repayment-smoothing rules. The familiar five-year rule can keep the monthly payment unchanged for a period even after the interest rate rises. A larger part of that payment then goes toward interest and a smaller part toward principal.
So the adjustment can look calmer than it really is.
A borrower might check the bank account and see almost no change while the economics of the mortgage have already worsened. Later repayment resets, slower principal reduction or both eventually reveal the difference.
This lag is one reason we should be careful about judging the impact of Japan's rate increases from household stress today alone.
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What happens if Japanese variable mortgage rates reach 2% or 3%?
Japanese mortgages become much harder to call “cheap” once a typical variable rate reaches 2%, and a move toward 3% would materially change affordability for large borrowers.
A ¥50 million, 35-year mortgage costs roughly ¥147,000 per month at 1.245%.
At 2%, that rises to about ¥166,000.
At 3%, the payment approaches ¥192,000.
For someone who originally borrowed around 0.345%, the jump to 3% would add roughly ¥66,000 to the theoretical monthly repayment on the same ¥50 million balance.
A ¥70 million mortgage would be even more sensitive. The gap between 0.345% and 3% approaches ¥92,000 per month.
We do not need to predict that Japanese variable mortgages will reach 3% to see the risk. The calculation simply shows where today's comfortable-looking mortgage starts becoming a serious household-budget issue.
| ¥50m mortgage over 35 years | Approx. monthly payment | Increase vs 0.345% |
|---|---|---|
| 0.345% | ¥126,400 | — |
| 1.245% | ¥146,900 | +¥20,500 |
| 2.0% | ¥165,600 | +¥39,200 |
| 3.0% | ¥192,400 | +¥66,000 |
| 3.46% | ¥205,500 | +¥79,100 |
Does Japan's mortgage tax deduction still make home loans cheap?
Japan's mortgage tax deduction still softens the cost for eligible homebuyers, but today's higher rates have made that benefit much less powerful.
Qualifying owner-occupiers can generally deduct 0.7% of the eligible year-end mortgage balance, subject to the rules on income, property type, energy performance, borrowing limits and maximum deduction period.
That 0.7% was extraordinary when borrowers were obtaining mortgages around 0.3% or 0.4%. For some households, the nominal tax benefit on the eligible balance could rival the interest rate itself.
A variable mortgage around 1.2% already changes that arithmetic. The tax deduction still helps, yet the borrower is clearly paying a meaningful financing cost after the offset.
With a fixed mortgage around 3.5%, the deduction covers only a relatively small part of the rate.
The benefit therefore remains valuable for qualifying owner-occupiers, especially during the early years of the loan. Its ability to make borrowing feel almost free has largely disappeared.
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Are Japanese banks still keeping mortgage rates unusually low?
Japanese banks are still fighting hard for mortgage customers, and that competition is one big reason variable rates remain close to 1% despite the much higher policy-rate environment.
The gap between banks' reference rates and the rate a customer actually pays can be enormous.
MUFG currently shows a 3.375% reference rate on one variable structure but applies a 2.13 percentage-point discount, leaving an effective rate of 1.245%.
au Jibun Bank shows the same competitive pressure from another angle. One current offer for qualifying borrowers aged 50 or below and borrowing no more than 80% of the property's value is around 1.08%.
These offers come with conditions. Borrower profile, loan-to-value, insurance, fees and relationship discounts can all change the final cost. A headline rate should therefore be treated as the starting point for comparison rather than the complete price of the mortgage.
Still, bank competition is doing something real. Japan's policy rate is currently around 1%, while some of the best mortgage offers remain only slightly above it.
That margin cannot absorb endless rate increases. Banks have already been repricing their benchmark rates, and the latest published schedules show the process continuing.
Are longer Japanese mortgages hiding how expensive homes have become?
Longer mortgage terms are helping Japanese buyers keep monthly payments manageable, while also making it easier to carry very large housing debts.
Thirty-five-year loans remain common, and 40-year products have become easier to find. Some lenders now go even further for younger borrowers.
Stretching a loan over more years can undo part of the monthly pain from a higher interest rate. That is attractive when the buyer is already trying to finance an expensive Tokyo apartment.
The trade-off appears later. The household carries debt for longer, repays principal more slowly and pays interest over more years.
There is also a broader affordability effect. When banks allow larger balances to be spread across longer periods, buyers can continue bidding for expensive homes without seeing the whole increase immediately in the monthly payment.
That helps explain why higher mortgage rates have not produced an abrupt break in the Japanese housing market. Longer terms give households another lever to pull.
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Have higher mortgage rates already killed housing-loan demand in Japan?
Higher mortgage rates have not killed Japanese housing-loan demand so far, which tells us that financing has become more painful without becoming prohibitive.
Japan's housing-finance market still runs at roughly tens of trillions of yen in new lending over a full year, with domestic banks accounting for most originations.
We have yet to see the kind of lending collapse we would expect if ordinary borrowers suddenly found mortgages unaffordable across the board.
Buyer behavior can adjust in quieter ways. Households can choose variable instead of fixed, extend the mortgage term, put down more cash, buy a smaller property or move farther from the most expensive districts.
Those adjustments help preserve loan demand even as financing conditions worsen.
So loan demand has weakened at the edges, but it has not broken. Japanese mortgage rates are high enough to change decisions, not yet high enough to shut large numbers of buyers out of credit.
Are rising mortgage rates worse because Japanese home prices are already so high?
Higher mortgage rates hurt much more now because buyers in Tokyo and other expensive markets are applying those rates to much larger loan balances.
The interest rate alone tells only half the story.
Imagine one household financing ¥50 million at 0.345%. The monthly payment is roughly ¥126,000.
Another household financing ¥70 million at 1.245% pays around ¥206,000.
That is almost ¥80,000 more every month. Part comes from higher rates and part from the much larger principal required to buy the property.
This combination is especially relevant in Tokyo, where new condominium prices have risen dramatically over the past several years. A one-percentage-point rate change on a ¥30 million mortgage feels very different from the same change on ¥80 million or ¥100 million.
Japan therefore does not need 6% or 7% mortgages to create serious affordability pressure. Large property prices amplify even relatively small interest-rate increases.
For buyers today, the size of the mortgage is increasingly more important than whether Japan's rate still looks low beside another country's.
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Should Japanese homebuyers fix their mortgage rate now?
A fixed Japanese mortgage is currently expensive enough that financially strong borrowers can still make a good case for staying variable, while households with little room for higher payments should take the rate risk much more seriously.
The cost of fixing is the key problem.
A ¥50 million mortgage around 1.2% costs roughly ¥146,000 a month. The same loan around the current 3.46% Flat 35 rate costs around ¥205,000.
That is close to ¥60,000 a month for certainty.
For a borrower with substantial savings, stable income and the ability to repay early, accepting variable-rate risk can still be rational. Paying such a large fixed-rate premium today means spending a lot of money immediately to insure against increases that may occur gradually.
A household already close to its monthly budget limit has less room to gamble on the path of Japanese rates. For that buyer, the useful test is simple: would the mortgage still be comfortable around 2%, and could the household survive a period around 3% without cutting essential spending or being forced to sell?
The future direction also deserves some humility. Japanese rates can fall again during a recession or a sharp inflation slowdown. But borrowers can no longer assume that every increase will eventually disappear back toward zero. The Bank of Japan has already shown that rates can move well beyond the levels that defined the previous decade.
Choosing variable today is therefore a calculated bet. For some households it remains a good one. For others, the cheap starting payment hides more risk than they can comfortably carry.
So, are Japanese home loans getting expensive now?
Yes. Japanese home loans are getting expensive now by the standards that actually matter to Japanese buyers, although variable borrowing remains surprisingly cheap for the moment.
The strongest evidence comes from the breadth of the repricing.
The Bank of Japan currently guides its key overnight rate around 1%. A comparable MUFG variable mortgage has moved from 0.345% in early 2024 to roughly 1.245%. Flat 35 is now 3.46% for the most common 21-to-35-year structure. SMBC's published rate on some new ultra-long fixed mortgages has moved above 5%.
As seen above, borrowers have reacted without abandoning variable mortgages. The latest broad Housing Finance Agency survey still put variable borrowing at 75%, down from 79%. That makes sense when fixing can add tens of thousands of yen to the monthly payment from day one.
Our final judgment is that the cheap-mortgage era in Japan is ending in two speeds.
Fixed-rate borrowers are already living in a much more expensive market. Rates around 3.5% to 5% are difficult to describe as cheap by modern Japanese standards.
Variable borrowers have had a gentler transition because banks are still competing aggressively and passing higher funding costs through gradually. Around 1% to 1.3%, those loans remain attractive.
The risk is what happens next. Japanese buyers are increasingly financing expensive homes with large balances, and three quarters of recent borrowers still rely on variable rates. Another one or two percentage points would have a much larger effect than the increases households have absorbed so far.
So yes, Japanese home loans are getting expensive. Fixed mortgages are already there. Variable mortgages are currently halfway through the transition.
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OUR METHODOLOGY
This analysis tests whether Japanese home loans are getting expensive now by separating the question into the parts that actually determine what a borrower pays: monetary-policy changes, variable mortgage repricing, fixed mortgage rates, monthly repayments, borrower behavior, tax offsets, existing-loan adjustment mechanisms, lending activity, mortgage duration, and the size of the underlying property debt.
We did not treat “expensive” as a single universal rate threshold. A mortgage around 1.2% can still be cheap compared with borrowing costs abroad while being materially more expensive than the 0.3% to 0.5% rates Japanese households became accustomed to. We therefore compare today's rates both with recent Japanese history and with their actual effect on household payments.
For the policy-rate backdrop, we used the Bank of Japan's March 2024 monetary-policy decision, its 2026 monetary-policy decisions, and the BOJ's overnight call-rate data. These establish the change in the underlying interest-rate environment rather than relying on commentary about where Japanese rates appear to be heading.
For variable mortgages, MUFG's published history is particularly useful because it lets us compare the same discount structure through different rate periods. We used MUFG's explanation and historical rate progression, its current mortgage pricing, and its latest reference-rate revision. We checked the competitive end of the market against au Jibun Bank's current mortgage offers and detailed rate conditions.
For fixed borrowing, we used Flat 35's current published rates as a standardized long-term benchmark. We then compared that with SMBC's current new-mortgage rates and SMBC's historical rate series to see how commercial-bank long-term fixed pricing has changed over time.
Headline rates do not show affordability on their own, so we converted selected interest rates into standardized monthly repayments using fully amortizing 35-year principal-and-interest loans. We tested several balances because the same rate increase has a very different effect on a ¥30 million mortgage and a ¥100 million mortgage. The 2% and 3% examples are sensitivity tests, not forecasts of where Japanese mortgage rates will go.
Borrower behavior comes from the Japan Housing Finance Agency's mortgage-borrower survey and its underlying data on rate-type selection and understanding of interest-rate risk. We also checked the JHF's housing-loan origination and outstanding-balance data and financial-institution lending survey to see whether higher rates have already produced a broader collapse in mortgage demand.
Finally, we included the Ministry of Land, Infrastructure, Transport and Tourism's housing-loan tax deduction rules because the 0.7% deduction can materially change the early economics of an eligible owner-occupier's loan. We used Real Estate Economic Institute data on Greater Tokyo condominium prices as context for why even relatively small mortgage-rate increases can become painful when borrowers are financing much larger property values.
The final judgment comes from the combined evidence rather than a single headline mortgage rate. Variable loans remain comparatively cheap, fixed loans have repriced much further, monthly-payment differences are now material on large balances, borrowers are shifting only gradually toward fixed products, and higher property prices magnify each additional increase in financing costs.
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