Will Korea’s new property taxes actually lower home prices?

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What is Korea actually changing about property taxes?

Korea’s new property-tax plan will make very expensive homes and investment property more costly to own, while many ordinary owner-occupiers are being deliberately protected.

The government’s 2026 tax reform changes the comprehensive real estate holding tax, known as jongbu-se, in several important ways. The biggest shift is away from treating the number of homes as the main dividing line. From 2028, the government plans to use a unified rate structure based much more heavily on the total taxable value of the property.

That changes who gets hit hardest. Under the current system, owners of one or two homes generally face rates between 0.5% and 2.7%, while owners of three or more can face rates as high as 5%. Under the proposed system, the same 0.5% to 5% range would eventually apply regardless of the number of homes, with expensive property carrying the heavier burden.

Owner-occupiers get some protection. The basic jongbu-se deduction for someone who owns and lives in one home rises from KRW 1.2 billion to KRW 1.4 billion in assessed value, roughly equivalent to a KRW 2 billion market-value home.

There was an important last-minute change here. The original tax proposal would have cut the deduction for a single-home owner who does not live in the property to KRW 900 million. In the final government bill, that deduction stays at KRW 1.2 billion. The government also kept the annual tax-burden ceiling at 150% rather than tightening it.

Capital-gains taxation is moving in the other direction. The heavy surcharge on multi-home owners in regulated areas has returned after a long suspension, although the government’s new tax package proposes temporarily lower surcharges before they climb back toward their full level.

So the current policy is quite targeted. Living in one moderately priced home gets relatively favorable treatment. Holding expensive housing without living in it, or owning several valuable properties, becomes less attractive.

Part of the tax system	What is changing	Who feels it most	Likely effect
Jongbu-se rates	Greater weight on property value	Owners of very expensive homes	Higher annual holding cost
Resident single-home deduction	KRW 1.2bn to KRW 1.4bn assessed value	Owner-occupiers	Reduces pressure
Non-resident single-home deduction	Final bill keeps KRW 1.2bn	Owners not living in the property	Tougher than resident treatment, but softer than first proposed
Multi-home CGT	Heavy surcharge has returned	Multi-home sellers in regulated areas	Can discourage selling
First-home acquisition relief	Support remains and is being broadened in places	First-time buyers	Supports demand

Is Korea really trying to make home prices fall?

Korea is currently trying to cool expensive and speculative housing much more aggressively than ordinary owner-occupied homes, so a nationwide price fall is not really what the policy is designed to produce.

We can see that directly in the tax package. A resident single-home owner gets a higher jongbu-se deduction. First-time buyers still receive acquisition-tax support. Some older homeowners who sell a long-held home in the Seoul area and move outside the capital region are also being offered tax incentives.

At the same time, owners of very expensive property face higher effective rates, the tax system increasingly rewards actual residence, and multi-home owners face much heavier costs when they hold or sell investment property.

The target is quite specific: reduce the advantage of using expensive housing as a financial asset, especially when the owner has several properties or does not live in the home.

That can cool parts of Seoul without making the average Korean home cheaper.

If Gangnam loses part of its investment premium while a KRW 800 million apartment in northern Seoul keeps rising, the policy may still be doing what the government intended. It just would not have solved affordability for the average buyer.

Why can higher property taxes sometimes keep Korean home prices high?

Korea’s housing taxes can push owners to sell and discourage them from selling at the same time, which is why a tax crackdown does not automatically produce cheaper homes.

The annual holding tax gives an investor a reason to reconsider an expensive apartment. Every extra year of ownership now carries a larger recurring cost.

The capital-gains tax creates the opposite incentive. Since the heavier surcharge returned, owners of two homes in regulated areas can face an additional 20 percentage points on top of the normal capital-gains rate, while owners of three or more can face another 30 points. At the extreme, the effective burden can reach 82.5% once local taxation is included.

That is large enough to change behavior dramatically.

We saw exactly that around the end of the previous tax exemption. Owners rushed to list and sell before the deadline. Once the heavier tax came back, Seoul apartment listings fell sharply. One market count recorded 1,581 listings disappearing in a single day, and listings were roughly 11% below their level around the tax deadline a few weeks later.

KDI research into previous Korean capital-gains-tax changes found the same pattern over a longer period. Sales and gifts were pulled forward before tighter taxation, then transactions weakened after the rules changed.

The government is now trying to reduce this problem by giving multi-home owners another staged period of lower surcharges before the full rates return. Basically, it is trying to get owners to sell while the door is still open.

Tax pressure	What the owner may do	Effect on listings	Likely price pressure
Higher annual holding tax	Sell an investment home	More listings	Downward
Very high capital-gains tax	Delay the sale	Fewer listings	Upward or neutral
Temporary CGT relief	Sell before relief expires	More listings temporarily	Downward
Higher tax on expensive non-resident property	Move capital elsewhere	More potential supply	Downward
Expectation of future tax reversal	Keep the property and wait	Less supply	Supports prices

Are Korea’s new property taxes already lowering Seoul home prices?

They are currently lowering prices in the part of Seoul most exposed to the tax reform, but Seoul as a whole is still getting more expensive.

The latest Korea Real Estate Board weekly data give us an unusually clean split. Seoul apartment prices rose 0.22% in one week overall, even as the increase slowed from 0.29% the week before.

Gangnam and Seocho moved in the opposite direction.

Both districts have now been falling for four consecutive weeks since the tax reform was announced. In the latest reading, Gangnam fell 0.41% and Seocho 0.23%, according to the Korea Real Estate Board data reported by several Korean outlets. Songpa, another expensive southern district, was barely positive.

Northern and southwestern Seoul were still rising fast. Seongbuk gained 0.54% in the same week, Jungnang 0.52%, Nowon 0.50%, Gangbuk 0.45% and Gangseo 0.45%.

That gap is much more informative than the Seoul average.

The tax-sensitive luxury market has weakened quickly, while buyers are still bidding up less expensive apartments elsewhere in the city. For now, the reform looks more capable of changing where prices rise than of stopping Seoul prices from rising altogether.

Seoul district	Latest weekly move	What we are seeing now
Gangnam	-0.41%	Sharp weakness in high-value housing
Seocho	-0.23%	Fourth consecutive weekly decline
Songpa	Roughly flat	Previous momentum almost gone
Seongbuk	+0.54%	Strong demand in cheaper Seoul
Jungnang	+0.52%	Strong appreciation
Nowon	+0.50%	Buyers still active further north
Seoul overall	+0.22%	Citywide market still rising

Is Gangnam falling because of the new property taxes?

The new property taxes are clearly contributing to Gangnam’s current weakness, although taxes are working alongside lending rules and other housing restrictions.

The timing is hard to dismiss. Gangnam and Seocho have now fallen for four straight weeks following the tax reform announcement, while districts with cheaper apartments and lower tax exposure have kept climbing.

There are individual transactions showing the same pressure. Earlier in the year, after the government made clear that tougher treatment of multi-home owners was coming, an 84-square-meter unit at Maple Xi in Seocho reportedly sold for about KRW 5.05 billion, roughly KRW 600 million below an earlier peak.

Academic evidence backs up the broader mechanism.

A 2026 Journal of Housing Economics study examined Korean transactions between 2017 and 2024 and compared expensive homes exposed to the comprehensive holding tax with cheaper homes that were much less affected. When Korea made the tax more progressive in 2019 and 2021, the price gap between those groups narrowed. When the tax was relaxed in 2023, the gap widened again.

The same study also found stronger switching from expensive homes into cheaper homes in areas with greater exposure to the tax.

That makes the latest Seoul pattern harder to write off as random noise. What we are seeing today closely resembles the behavior found in the historical transaction data.

We still need more than four weeks before calling the Gangnam decline durable, but the early effect is real enough to take seriously.

Are Seoul buyers simply moving into cheaper apartments?

Yes. One of the clearest effects of Korea’s housing crackdown lately is that demand has moved down the price ladder rather than leaving Seoul.

The latest district data make this hard to miss. Gangnam and Seocho are falling while Seongbuk, Jungnang, Nowon, Gangbuk, Gangseo, Gwanak and Guro are still posting strong weekly gains.

Buyer behavior had already started shifting earlier. In one recent monthly transaction breakdown, apartments below KRW 1.5 billion made up more than 80% of Seoul apartment transactions. In several outer districts, more than 95% of deals were below that level.

There is a straightforward reason. An investor or upper-middle-income buyer priced out of a KRW 3 billion or KRW 4 billion apartment does not necessarily stop wanting property in Seoul. That buyer can look at Mapo, Seongbuk, Dongdaemun, Nowon or another district where the same money buys much more.

The 2026 Journal of Housing Economics research found the same substitution after previous jongbu-se increases. Areas more exposed to the tax saw demand move from expensive units toward cheaper ones.

This weakens the citywide price effect considerably.

Tax policy can reduce what buyers will pay for the most heavily taxed homes while sending some of that demand straight into the next price band. That already describes Seoul better than a simple “housing market slowdown.”

Did multi-home owners actually rush to sell before Korea raised their taxes?

Yes. Multi-home owners changed their behavior sharply before the heavier capital-gains tax returned, and the selling wave faded once the tax advantage disappeared.

Government decisions early in the year gave sellers a clear deadline. Multi-home owners who signed or began qualifying transactions before the cutoff could still avoid the restored surcharge, subject to completion rules that varied by area.

Listings jumped in the expensive districts most exposed to the policy. At one stage, listings were up 48.1% in Songpa, 28.9% in Yongsan, 28.4% in Seocho and 21.7% in Gangnam compared with levels before the government hardened its position.

Transactions followed.

Nationwide home sales had been running close to 80,000 a month around the peak of the tax-driven selling period. After the exemption ended, monthly transactions fell by roughly 30% into the 55,000 range.

Then listings started disappearing too.

As pointed out above, Seoul listings were about 11% lower only a few weeks after the deadline than they had been around the cutoff itself. The spring supply surge was heavily influenced by tax timing rather than a permanent decision by multi-home owners to abandon Seoul housing.

That matters for the outlook now. Korea pulled extra supply into the market for a while, but a tax deadline can borrow future transactions rather than create a lasting increase in available homes.

Does a collapse in Seoul transactions mean home prices are finally falling?

No. Seoul can have far fewer transactions while home prices keep rising, which is why transaction volume is a poor shortcut for measuring whether Korea’s tax policy is working.

Consider what happened after the multi-home capital-gains exemption ended. Transactions fell sharply. Listings also dropped. Meanwhile, Seoul’s overall apartment-price index continued rising.

The market became thinner.

When fewer owners want to sell, buyers have fewer choices. That can cancel out part of the drop in demand caused by taxes and tighter lending.

This effect is especially strong in Seoul because buyers do not view every Korean home as interchangeable. Someone trying to live near a particular school district, subway line, redevelopment project or employment center cannot easily substitute an apartment in another province.

Popular Seoul complexes can therefore keep setting higher transaction prices even while the total number of deals falls.

We should only become confident that tax policy is bringing prices down when sellers are accepting lower prices in meaningful numbers. A quiet market with very few deals tells us much less.

Do previous Korean property-tax hikes actually prove that these taxes work?

Previous Korean tax changes give us good evidence that property taxes can reduce the relative price of expensive homes, but very weak evidence that they can make the whole housing market fall by themselves.

Several studies now point in the same direction on high-value housing.

The recent Journal of Housing Economics paper found that the price gap between heavily taxed expensive homes and cheaper homes narrowed after the 2019 and 2021 tax increases, then widened after the 2023 relaxation.

An earlier Korean study examining both the comprehensive holding tax and ordinary property tax also found statistically significant short-term negative effects on housing prices.

But the effects have never been perfectly consistent across reforms. Another analysis of previous Korean tax changes found a clearer price response after the 2018 tightening than after later changes.

That inconsistency makes sense. Buyers care about more than the statutory rate. They care about whether the tax will remain in place, whether exemptions will return, whether interest rates are rising, how easy mortgages are to obtain and whether enough apartments are being built.

Korean housing policy also changes frequently. Owners have watched governments tighten, suspend and redesign the same taxes within a few years.

A tax expected to last ten years should affect today’s price much more than a tax owners think could disappear after the next political cycle.

The evidence is strongest on a narrower claim: sustained progressive holding taxes can make heavily taxed expensive homes underperform. Claiming that jongbu-se can crash Seoul housing goes much further than the evidence does.

Could higher Korean property taxes just push rents up?

Some of Korea’s higher property taxes can reach tenants, especially in expensive rental housing, so taxing landlords does not guarantee that landlords absorb the entire cost.

The best recent evidence comes again from the 2026 Journal of Housing Economics study. Researchers found that monthly rents on high-value homes affected by the comprehensive holding tax rose more relative to cheaper homes after the tax was increased. When the tax was relaxed, rents on expensive homes moved back down relative to the comparison group.

Older KDI work found weaker evidence of widespread pass-through, which suggests landlords cannot simply add the entire tax bill to the rent.

The difference is useful. A landlord in a competitive neighborhood with plenty of similar apartments may have to absorb much of the tax. An owner of scarce high-end housing has more room to increase rent.

Seoul’s currently tight rental market makes that possibility more relevant.

The Korea Real Estate Board’s latest weekly figures still show Seoul jeonse prices rising. A policy that cools expensive sale prices while making certain rentals more costly creates a real trade-off for households trying to live in those neighborhoods.

Possible outcome	Sale price	Rent	Who bears more of the tax
Landlord absorbs tax	Down	Little change	Owner
Buyer discounts future tax	Down	Little change	Existing owner
Landlord passes part through	Down or flat	Up	Owner and tenant
Tight rental supply	Limited sale effect	More upward pressure	Tenant
Weak rental demand	More price pressure	Little pass-through	Owner

Can property taxes overpower Seoul’s shortage of desirable homes?

No. Korea can tax housing demand quite aggressively, but property taxes cannot quickly create more apartments in the Seoul neighborhoods people actually want.

This is the biggest reason to be skeptical of a broad, lasting Seoul price decline caused by taxes alone.

Demand in Seoul is unusually concentrated. Buyers pay large premiums for access to certain schools, subway lines, job centers, redevelopment areas and newer apartment complexes. The city also has limited land and a redevelopment process that can take years.

Even when the government announces more housing, completed apartments arrive much later.

That leaves taxes doing most of their work on buyers rather than physical supply. Removing one speculative buyer helps, but prices can remain high when several owner-occupiers are still competing for the same apartment.

The government’s own behavior shows that it understands this. Housing policy currently combines taxes with mortgage restrictions, land-transaction controls and a much larger housing-supply program.

If property taxes were enough, Korea would not need all of those other measures.

Which Korean homes are actually most likely to get cheaper now?

Very expensive Seoul homes that carry high taxes and are owned for investment are the clearest candidates for price declines, while ordinary owner-occupied homes face much less direct pressure.

A resident who owns one home around or below the new KRW 1.4 billion assessed-value deduction sits relatively far from the center of the crackdown.

Move higher up the market and the calculation changes quickly.

Under government examples released with the reform, a KRW 5 billion home owned for ten years could eventually produce a large tax gap depending on whether the owner actually lives there. The reform increasingly favors residence and reduces some of the value of simply holding an expensive property for years.

Ultra-high-value homes also face steeper rates as the new structure is phased in.

Multi-home owners face another layer of pressure because both their holding decisions and eventual sale are affected by the tax system.

The latest market already broadly follows this ranking. High-end Gangnam and Seocho are falling, while cheaper districts remain much stronger.

Anyone asking whether “Korean home prices” are going down is grouping together properties that currently face completely different conditions.

What would prove that Korea’s property taxes are genuinely lowering home prices?

We would take the tax crackdown much more seriously as a citywide price policy if the weakness spreads beyond luxury Seoul and sellers continue accepting lower prices even after the tax deadlines have passed.

Gangnam and Seocho have already given us the first piece of evidence. Four consecutive weekly declines following the tax reform are significant enough to watch.

The harder test comes next.

If prices in expensive districts keep falling while listings remain available, the tax is probably changing owners’ reservation prices rather than producing a temporary freeze.

If price weakness then reaches mid-priced Seoul without those buyers simply moving into cheaper districts, the demand effect is becoming broader.

Transactions would also need to recover at lower prices. A market where listings vanish and almost nobody sells would tell us that capital-gains taxation has locked owners in.

Finally, the rules need to last. Korea’s property taxes have been changed so often that households have learned to wait for the next reform. The more permanent the current system looks, the more strongly future tax bills should affect what buyers are willing to pay today.

Right now, only the first part of that test has clearly happened.

So, will Korea’s new property taxes actually lower home prices?

Partly. Korea’s new property taxes are already putting real pressure on expensive Seoul housing, but they are unlikely to make Seoul or South Korean homes broadly cheaper without a much bigger change in supply and demand.

The strongest current evidence comes from the split inside Seoul. Gangnam and Seocho have fallen for four straight weeks while the citywide apartment index is still rising and cheaper districts such as Seongbuk, Jungnang and Nowon are climbing quickly.

That pattern fits remarkably well with what researchers found after previous comprehensive holding-tax increases. Higher taxation reduced the relative value of expensive homes and pushed some buyers toward cheaper properties.

The policy therefore has a credible path to lowering luxury prices.

The harder part is turning that into a broad housing decline. Multi-home capital-gains taxes can lock owners into their properties. Buyers pushed out of Gangnam can move into cheaper Seoul districts. Owner-occupiers still receive tax support. And the supply of desirable apartments remains tight.

As seen above, Korea has already demonstrated both sides of the mechanism this year: tax pressure brought a rush of listings before the selling deadline, followed by sharply fewer transactions and fewer listings once the heavier capital-gains tax returned.

For now, we would expect a reshuffling of Seoul prices more than a collapse in them. Expensive investment property should underperform, some luxury homes can fall outright, and demand can keep moving into cheaper districts.

So the answer is yes for the homes Korea is deliberately targeting.

For Korea’s wider housing affordability problem, property taxes alone are nowhere near enough.

Who is the author of this content?

BAMBOOROUTES

A team specialized in real estate investing in APAC countries (Japan, Thailand, Indonesia, Australia, etc.).

We are a team of financial experts, legal professionals, developers, and local real estate specialists dedicated to helping people like you avoid mistakes when investing in real estate in a foreign place, particularly in South Korea. If you’d like to learn more about us, you can check our presentation page.