South Korea puts an end-2027 sell-by date on registered landlords' multi-home tax exemption

The fixed date falls on one group of owners. An apartment still under a mandatory lease on Jan. 1, 2027 keeps the old treatment for up to a year after it is deregistered ^[5], so that owner's deadline moves with the lease. An owner whose lease has already run out gets Dec. 31, 2027 and no later ^[3]. Until now, that owner could hold indefinitely without losing the exemption ^[4]. The decrees take effect Oct. 1 ^[2]. That leaves this owner 15 months to complete a sale ^[1].

Missing the date means paying the heavier capital gains tax charged to multi-home owners on any later sale, or, for a corporate landlord, the additional corporate tax levy ^[3]. The Seoul Economic Daily report does not give the surcharge rates or the number of apartments affected. The apartment's market price in January 2028 will be whatever buyers pay. What falls after the date is the share of that price the owner keeps after tax.

If owners in the fixed-date group sell on schedule, 2027 brings a cluster of listings in the areas the government has designated for tighter property rules ^[1]. If they judge that price gains will outweigh the heavier tax, they hold, and the rule raises the tax on an eventual sale without adding supply. Owners in rebuilding zones have a third route. If a redevelopment management and disposal plan, or a reconstruction association, is approved before the end of 2027, the benefit runs to a year after the approval notice, and when both exceptions apply the later date counts ^[6].

I'd expect the first outcome to dominate among owners who bought these apartments as rental stock, because the exemption was part of the return they paid for. The counter-case is a fast-rising market, where holding and paying the heavier rate beats selling early and the deadline changes tax receipts more than supply. The view is wrong if regulated-area apartment sales in the last quarter of 2027 look like any other quarter's.

The package leaves the landlord's own home alone. Rental operators keep the single-home exemption and the long-term holding deduction on the home they live in for five years after the rental unit is deregistered ^[7]. A ministry official said the measure reflects the fact that "the home a person lives in has little direct connection to a registered rental home." ^[8]

Two other clocks in the same decrees get shorter. People who temporarily own two homes in regulated areas now have two years to sell the old one instead of three ^[11], which is 12 months less ^[2]. The new rule covers new homes acquired from Aug. 4 where the old home is sold from Oct. 1. Anyone who acquired a home, or signed a contract and paid a down payment, by Aug. 3 keeps three years ^[12]. The win-win rental break let landlords who held rent increases within 5% over a two-year lease skip the two-year residency requirement ^[9], and it ends this year. Under the replacement rule, the home must be sold within a year of the win-win lease ending, with Dec. 31, 2029 as the last date ^[10]. That is two years after the rental deadline ^[3].

The package's one outright extension points outside greater Seoul. Tax support for completed but unsold homes there runs one more year, through Dec. 31, 2027 ^[13]. For regulated-area landlords without an exception, that is also the last day to sell and keep the exemption ^[3].