South Korea Late Rent Fee Regulations: Statutory Interest, Contractual Rates, and Termination Thresholds

When a tenant falls behind on rent in South Korea, the landlord is entitled to claim late fees (delayed damages) and may ultimately terminate the lease if arrears reach a certain threshold. Understanding the applicable interest rates and termination rules is critical for effective property management.

Disclaimer: This guide provides general legal information for educational purposes only and does not constitute legal advice. Always consult a licensed attorney in South Korea for guidance specific to your situation. Information last verified: March 2026.

Late Fee Interest Rates

Statutory Rate (When No Contractual Rate Exists)

Contractual Rate (When Specified in the Lease)

If the lease agreement specifies a late payment interest rate, that contractual rate takes priority. Rates of 5%–20% per annum are common in practice.

Legal Maximum

Warning: Any late fee rate exceeding 20% per annum is void as to the excess. Additionally, courts may exercise discretion to reduce rates they consider socially unreasonable, even when below 20%.

Calculating Late Fees

Formula

Late fee = Overdue rent × Annual rate × (Days overdue / 365)

Example (Statutory Rate)

At the statutory rate of 5%, late fees are relatively modest. This is why many landlords specify a higher contractual rate in the lease.

Rent Arrears and Lease Termination

2-Month Arrears Threshold (Civil Act Art. 640)

When cumulative rent arrears reach 2 months' worth of rent, the landlord may terminate the lease.

Post-Termination Considerations

• Termination notice is effective upon delivery to the tenant
• The landlord's deposit return obligation persists even after termination
• Overdue rent may be deducted from the deposit

Dispute Resolution

Housing Lease Dispute Mediation Committee

For late fee disputes, parties may seek mediation before filing a lawsuit:

• Jurisdiction: District courts or Korea Land and Housing Corporation (LH)
• Cost: Free
• Timeline: Within approximately 60 days

Small Claims Court

For arrears under ₩30 million, the streamlined small claims procedure is available.

Deposit and Arrears Relationship

• Rent arrears are not automatically deducted from the deposit during the lease
• Landlords may deduct overdue rent upon lease termination and deposit settlement
• During the lease, using deposit funds to cover rent is generally not permitted unless both parties agree

Best Practices for Landlords

1. Specify a late fee rate in the lease — the statutory 5% may be insufficient; set a reasonable contractual rate
2. Do not exceed 20% per annum — excess is void, and unreasonable rates may be judicially reduced
3. Record arrears immediately — document dates, amounts, and collection attempts
4. Use documented communication — text messages, email, or certified mail for collection notices
5. Act promptly at the 2-month threshold — send a termination notice via certified mail when cumulative arrears reach 2 months
6. Remember that arrears can be deducted from the deposit — but only at lease termination, not during the term

How Landager Helps

Landager helps you track rent payments in real time, receive automated arrears alerts, and maintain detailed payment histories for every lease — ensuring you stay informed and compliant.

Back to South Korea Landlord-Tenant Laws Overview.