CONTENTS
- 1. Overview of the Lease Deposit Return Dispute

- - The Core Issue of the Case
- 2. The Supreme Court's Determination on the Relationship Between Deposit Deduction and the Attachment and Collection Order

- - The Security Function of the Lease Deposit
- - The Scope of Obligations Secured by the Lease Deposit
- - The Principle of Automatic Deduction from the Deposit
- - The Effect of an Attachment and Collection Order Against a Rent Claim
- - The Relationship Between the Attachment and Collection Order and Deduction from the Deposit
- 3. The Standard for Settling the Deposit Presented by the Supreme Court

- - Key Summary of the Judgment
- - Matters to Check When Settling a Lease Deposit
- 4. Responding to Lease Deposit Disputes: Why the Assistance of a Real Estate Attorney May Be Needed

- - Issues to Check in a Deposit Return Dispute
- - The Assistance of Daeryun Law Firm LLP
1. Overview of the Lease Deposit Return Dispute
This case arose where the scope of the lease deposit return became an issue in the course of the lessor's claim against the lessees for delivery of the building.
The lessees had been in arrears on rent for a long period, and the lessor terminated the lease on the ground of rent arrears of two or more installments. After the lease subsequently ended, the matter of settling the deposit came to the fore as the point at issue.
However, a third-party creditor had already obtained a court-issued attachment and collection order against the rent claim held by the lessor.
Accordingly, the lessees argued that rent accruing after service of the attachment and collection order could no longer be asserted by the lessor and therefore could not be deducted from the deposit.
The lessor's side, on the other hand, argued that, because the lease deposit is money received to secure overdue rent, the overdue rent should be deducted in the course of settling the deposit unless and until it has actually been collected.
The Core Issue of the Case
The core of this case is as follows.
"Even where an attachment and collection order has been issued against a rent claim, may the lessor deduct uncollected overdue rent from the lease deposit?"
The lessees argued that, because the attachment and collection order placed the rent claim under the control of the collecting creditor, the lessor could not reflect it in the process of settling the deposit.
The lessor, on the other hand, took the view that the attachment and collection order and the security function of the deposit are separate matters, and that overdue rent not actually collected still constitutes a debt secured by the deposit.
The Supreme Court decided this issue by focusing on the legal nature of the lease deposit and the principles of deposit deduction established in prior precedents.
2. The Supreme Court's Determination on the Relationship Between Deposit Deduction and the Attachment and Collection Order
In this case, the Supreme Court focused on the function performed by the lease deposit rather than on the attachment and collection order itself.
In particular, it first examined the principles governing the settlement of the deposit upon termination of the lease, and then considered whether the same principles could equally apply where an attachment and collection order exists.
The Security Function of the Lease Deposit
Supreme Court, Decision of December 23, 2004, 2004 Da 56554, and others
"In a lease of real estate, the deposit received secures all of the lessee's obligations arising from the lease, including obligations for rent and obligations to compensate for damage caused by loss of or damage to the leased object."
In this case, the Supreme Court began by examining the legal nature of the lease deposit.
The lease deposit does not carry only the meaning of money to be returned after the lease ends; it is money received in order to secure the various obligations borne by the lessee.
Accordingly, where overdue rent exists on the part of the lessee or an obligation to compensate for damage caused by harm to the leased object arises, such obligation is secured by the deposit.
The Supreme Court held that this security function of the deposit is maintained until the lease relationship ends.
The Scope of Obligations Secured by the Lease Deposit
The Supreme Court held that the lease deposit secures not merely a particular obligation but the various obligations arising from the lease relationship.
The representative obligations secured by the deposit are as follows.
▶ Obligation to compensate for damage caused by loss of or damage to the leased object
▶ Obligation arising from failure to perform the duty of restitution
▶ Other monetary obligations arising from the lease relationship
In this case, the Supreme Court held that, even where an attachment and collection order against the rent claim exists, overdue rent that has not been collected still remains an obligation of the lessee.
Accordingly, such overdue rent likewise falls within the scope secured by the lease deposit and may be deducted in the course of settling the deposit after the lease ends.
The Principle of Automatic Deduction from the Deposit
Supreme Court, Decision of December 23, 2004, 2004 Da 56554, and others
"An amount corresponding to the secured obligation is, absent special circumstances, automatically deducted from the deposit, without a separate manifestation of intent, when the leased object is returned after termination of the lease relationship."
The Supreme Court held that, once the lease ends and the leased object is returned, the lessee's obligations are automatically reflected in the process of settling the deposit.
In other words, even if the lessor does not separately manifest an intent to set off or give notice of an intent to deduct, where a secured obligation such as overdue rent exists, that amount is deducted from the deposit.
Accordingly, the deposit returned after the lease ends is fixed not as the full contractual deposit but as the amount remaining after deduction of secured obligations such as overdue rent.
In this case as well, the Supreme Court, on the premise of this principle of automatic deduction, held that uncollected overdue rent may be deducted in the course of settling the deposit.
The Effect of an Attachment and Collection Order Against a Rent Claim
An attachment and collection order is a compulsory execution procedure used by a creditor to secure a debtor's claim. Generally, the garnishee must make payment to the collecting creditor, and the debtor may no longer freely dispose of the claim.
In this case, the lessees argued that, once the attachment and collection order against the lessor's rent claim had been served, that rent fell within the scope of the collecting creditor's rights, and therefore the lessor could not reflect it in the process of settling the deposit.
The Supreme Court, however, held that the rent obligation itself does not extinguish merely by virtue of the existence of an attachment and collection order.
It held that, where collection has not actually been carried out, the rent obligation still subsists and may be included within the scope of the obligations secured by the deposit upon termination of the lease.
The Relationship Between the Attachment and Collection Order and Deduction from the Deposit
Supreme Court, Decision of December 23, 2004, 2004 Da 56554, and others
"When the lease agreement is terminated and the leased object is returned, an amount corresponding to the rent claim that remains uncollected up to that point is likewise automatically deducted from the lease deposit."
The Supreme Court held that, where the lease has ended before the collecting creditor has actually received payment, the remaining overdue rent should likewise be reflected in the process of settling the deposit.
This means that, even where an attachment and collection order exists, the security function of the deposit itself does not disappear.
Ultimately, the Supreme Court distinguished between the attachment and collection order against the rent claim and the security function of the lease deposit, and held that deduction from the deposit is possible with respect to uncollected overdue rent.
3. The Standard for Settling the Deposit Presented by the Supreme Court
This judgment is a case demonstrating to what extent the security function of the lease deposit is maintained even where an attachment and collection order against the rent claim exists.
In particular, the Supreme Court did not treat the existence of an attachment and collection order and the matter of settling the deposit as the same thing.
It held that the scope of the deposit return should be determined on the basis of whether the collecting creditor has actually received payment and of what obligations remain at the time the lease ends.
Accordingly, it was confirmed that, in the process of settling the deposit after the lease ends, it is necessary to examine not only the existence of an attachment and collection order but also whether the claim has actually been recovered and whether unsettled obligations exist.
Key Summary of the Judgment

This judgment made clear that the mere fact that an attachment and collection order has been issued does not exclude the lessor's right to deduct from the deposit.
It also confirmed that, even where a collection order exists, if collection has not actually been carried out, the overdue rent still remains an obligation secured by the lease deposit.
Ultimately, the Supreme Court determined the parties' rights and obligations by focusing on the legal nature and security function of the lease deposit, and presented the standard that, in the process of settling the deposit, the existence and the collection of the actual obligation are more important than whether the claim has been attached.
Matters to Check When Settling a Lease Deposit
Even where an attachment and collection order against the rent claim exists, the lessor needs to confirm whether collection has actually been carried out.
This is because, if uncollected overdue rent exists, that amount may be deducted in the course of settling the deposit.
The lessee, too, can hardly assume that the scope of the deposit return is determined merely by the fact that there was an attachment and collection order.
It is necessary to examine together whether there is any overdue rent or obligation to compensate for damage remaining at the time the lease ends.
The collecting creditor, too, must take into account that obtaining an attachment and collection order does not mean that the entire claim is immediately recovered.
Because the matter of settling the deposit may arise together where the lease ends while collection has not actually been carried out, it is necessary to check both the claim recovery procedure and the progress of the lease relationship.
4. Responding to Lease Deposit Disputes: Why the Assistance of a Real Estate Attorney May Be Needed
A lease deposit return dispute is not a matter resolved on the basis of the deposit amount alone.
The scope of the deposit return may vary depending on whether overdue rent exists, the time the lease ends, the progress of any attachment and collection order, and whether the claim has actually been recovered.
In particular, where compulsory execution proceedings against the rent claim are underway, the rights and obligations among the lessor, the lessee, and the collecting creditor can become intricately entangled, so it is necessary to review the related legal relationships comprehensively even before settling the deposit.
Issues to Check in a Deposit Return Dispute

Where a deposit return dispute arises, it is necessary to examine not only whether an attachment and collection order exists but also whether collection has actually occurred and the scope of the obligations remaining at the time the lease ends.
In addition, because the rights and obligations among the parties may vary depending on which obligations were deducted in the process of settling the deposit and on the grounds for such deduction, it is necessary to review the related materials comprehensively.
The Assistance of Daeryun Law Firm LLP
▶ Establishing the attribution of rights and a response strategy in cases where compulsory execution procedures, such as attachment and collection orders, assignment orders, and claim attachment against the rent claim, are underway
▶ Handling deposit settlement disputes among the lessor, the lessee, and the creditor, and lawsuits for the return of the deposit
▶ Analysis of claim and debt relationships and provision of legal advisory services relating to commercial building leases, building leases, and income-producing real estate leases
▶ Comprehensive legal support across the entire range of deposit settlement, set-off, compulsory execution, and claim recovery procedures following the termination of a lease
A real estate attorney analyzes the rights and obligations by comprehensively reviewing not only the lease agreement itself but also the law of claims, the law of compulsory execution, and the principles of damages at issue in the process of settling the deposit.
Daeryun, ranked ninth among law firms in the Republic of Korea (based on 2025 value-added tax filings with the National Tax Service), provides comprehensive legal services for lease deposit return disputes, commercial lease disputes, claim execution cases, and similar matters through the collaboration of attorneys experienced in the fields of real estate, construction, and civil litigation.
If you need a legal review regarding the deduction of overdue rent, the effect of an attachment and collection order, or the scope of the deposit return in the process of settling a lease deposit, you are welcome to review a specific course of response through a consultation with a 🔗real estate attorney.






