Private-listing platforms must verify and label who posted the ad — effective 17 June 2027 | Ministry monitoring
From 17 June 2027, a platform that carries private property listings must verify whether the advertiser is who they claim to be and their relationship to the owner, and label the ad with the result. It must also provide guidance on private-deal precautions, with a fine of up to ₩5M for breaches. The Ministry of Land may monitor ads and demand records and additional information.
Conditions used in the video
- Effective date
- 2027-06-17
- Promulgated
- 2026-06-16
- Basis
- Real Estate Transaction Reporting Act Articles 23-4 and 23-5 (new)
- Who
- platforms carrying private property listings
- To verify
- the advertiser's identity · relationship to the owner and others (Presidential Decree)
- Fine
- up to ₩5M
Results
- Platform duty ①
- verify the advertiser's identity and relationship to the owner → label the ad
- Platform duty ②
- provide guidance on private-deal precautions
- Fine
- up to ₩5M
- Ministry of Land
- monitor ads · demand records · demand additional information
- Earlier stage
- 2026-12-17 disclosure duty for private listings (Article 23-3)
Why it works this way
Today listings go up on private-deal apps and sites without any check on who posted them. Someone who is not the owner can list another person's home, the platform has no duty to screen it out, and a viewer cannot tell from the ad whether the poster owns the property.
Real Estate Transaction Reporting Act Article 23-4 (effective 2027-06-17).
- Advertiserposts a private listing
- Platformverifies identity and relationship to the owner
- Label on the adverification status + guidance on precautions
What must be checked and the guidance standards are set by Presidential Decree.
The Ministry of Land may monitor private listings and demand that platforms submit records and post additional information. Breaching the verification or guidance duty draws a fine of up to ₩5M.
The same amendment has two effective dates.
- 2026-12-17advertisers: state location, area, price · no unfair ads (Article 23-3)
- 2027-06-17platforms: verify and label · guidance (Article 23-4)
- OngoingMinistry monitoring (Article 23-5)
The advertiser's duty comes first; the platform's duty follows six months later.
This video and page describe a measure that has been promulgated but has not taken effect. Details may change through a decree or notice.
In short, from 17 June 2027 private-listing platforms must verify and label the advertiser and provide guidance. Ads without a verification label can be told apart.
The legal basis
Drawn from government announcements and the statutes themselves as primary sources, covering only the relevant part.
Real Estate Transaction Reporting Act Article 23-4 (Verification and guidance duties of private-listing platforms)
In force Effective 2027-06-17 (promulgated 2026-06-16; Addenda proviso)
A person who carries online private property listings must verify the advertiser's identity, relationship to the owner and other matters prescribed by Presidential Decree, indicate the verification status on the ad, and provide guidance on private-deal precautions.
What this means
The platform becomes the gatekeeper. The verification label becomes the ad's mark of trust.
Real Estate Transaction Reporting Act Article 23-5 · Article 28(2)6 to 8
In force Effective 2027-06-17
The Minister of Land may monitor private listings and demand records and additional information. Breaches of the verification, labelling and guidance duties are fined up to ₩5M.
What this means
A platform that fails its duties is fined, and the Ministry watches continuously.
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Frequently asked
What does the platform verify?
The advertiser's identity and relationship to the owner, among other things. The exact items are set by Presidential Decree.
Is an ad without a verification label illegal?
A platform that breaches its verification and labelling duty is fined up to ₩5M. Viewers can use the presence of the label to tell ads apart.
When does the advertiser's own duty start?
Stating location, area and price and the ban on unfair ads start on 17 December 2026. The platform duty follows six months later, on 17 June 2027.
What does the Ministry do?
It may monitor private listings and demand that platforms submit records and post additional information.
Results are estimates based on the inputs and on the rules as at the stated date. They may differ from a lender's actual assessment, and the rules change often. Take professional advice before any decision that matters.