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Jeonse Safety Checker

Essential diagnostic before signing a lease. Analyze debt ratios to identify "Underwater Jeonse" risks.

Real Estate Expert Audited
Last Updated: Feb 2026

What is a Jeonse Safety Diagnostic?

A Jeonse Safety Diagnostic is the process of evaluating the debt risk of a property to protect your deposit from "Underwater Jeonse" (깡통전세). It analyzes the Debt-to-Value Ratio by combining the property's market price with its existing mortgages and your proposed deposit. In 2026, understanding updated HUG Deposit Insurance standards (like the 126% rule) is critical for expats and locals alike to avoid rental fraud in South Korea.

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* Check 'Section Eul' of the Certified Copy of Registry

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FAQ

Quick answers to common questions.

What is 'Underwater Jeonse' (깡통전세)?

Underwater Jeonse occurs when the total debt on a property (mortgages + deposits) exceeds its market value. If the landlord defaults, tenants may lose their deposit.

What is a safe Jeonse debt ratio?

A debt ratio below 70% is generally considered safe. 70-80% requires caution and HUG insurance. Above 80% is high risk.

What is HUG deposit insurance?

HUG (Korea Housing and Urban Guarantee Corporation) provides Jeonse deposit return insurance that protects tenants if landlords fail to return deposits.

How do I check a property's mortgage?

Request a 'Certified Copy of Registry' (등기부등본) and check 'Section Eul' (을구) for any liens or mortgages registered against the property.