---
title: "Contract and Payment Disputes in Korea — K LAW OFFICE"
description: "Key issues and procedures under Korean law for contract performance, unpaid amounts, loan repayment, damages, and contract termination."
language: "en"
canonical_url: "https://klawoffice.kr/guide-contract-disputes"
alternate_language_url: "https://klawoffice.kr/ko/guide-contract-disputes"
publisher: "K LAW OFFICE"
date_modified: "2026-08-10"
---

Legal Guide · Civil

# Contract and Payment Disputes in Korea

What to review when contractual obligations are not performed, payment remains outstanding, or a claim for damages arises

Presented by K LAW OFFICE

## What Should You Check First?

The starting point is not simply whether an amount remains unpaid. The contract, the parties' actual performance, their communications, and the available evidence should be reviewed together.

-   **The parties and their authority:** Confirm the correct legal names of the parties and whether the person who signed or communicated on behalf of a company had the relevant authority.
-   **The agreed obligations:** Identify what each party was required to deliver, perform, approve, or pay, and when those obligations became due.
-   **Changes to the agreement:** Review amendments, purchase orders, specifications, messages, and the parties' course of dealing. An agreement may not be contained in a single signed document.
-   **Performance and alleged breach:** Separate what was performed, delayed, rejected, or left incomplete, and check whether notice, inspection, acceptance, or a cure period was required.
-   **Dispute-resolution terms:** Check governing-law, jurisdiction, arbitration, notice, and termination clauses before selecting a procedure.

## Claims and Responses That May Be Considered

Depending on the contract and the facts, a party may consider a claim for performance, payment of a purchase price or service fee, repayment of a loan, damages, or delay interest. The other party may dispute whether an obligation became due, assert defective or incomplete performance, rely on the defense of simultaneous performance (동시이행의 항변, withholding its own performance until reciprocal performance is offered), set off a counterclaim, or seek rescission or termination.

Damages generally require a contractual or legal basis, breach, loss, and a sufficient causal connection. Ordinary losses and losses arising from special circumstances are treated differently under Korean law; loss arising from special circumstances generally requires that the breaching party knew or could have known those circumstances.

A clause fixing an amount in advance may be characterized as liquidated damages (손해배상액의 예정, an agreed estimate of damages) or as a contractual penalty (위약벌, a sanction for breach). Under the Civil Act, an agreement for a stipulated sum upon breach (위약금) is presumed to be liquidated damages, but the label alone is not conclusive. The characterization can affect whether and how the amount may be reduced or enforced.

## Before Rescinding or Terminating a Contract

Korean law distinguishes rescission (해제, generally unwinding a contract with retroactive effect) from termination (해지, generally ending a continuing contractual relationship prospectively). The applicable remedy depends on the type of contract, the nature and seriousness of the breach, and the relevant contractual and statutory requirements.

In many cases, the non-performing party must first be given notice and a reasonable additional period to perform. Different rules may apply where performance has become impossible, performance by a fixed time was essential, or the contract or statute provides another ground. Before sending a notice, review who may give it, the required method, the cure period, and the intended legal effect. A defective or premature notice can create a further dispute.

## What Evidence Should Be Preserved?

-   Signed contracts, amendments, general terms, purchase orders, quotations, and specifications
-   Invoices, tax invoices, account statements, bank-transfer records, and receipts
-   Delivery records, inspection or acceptance records, work reports, and photographs
-   Emails, messages, meeting notes, notices, and recordings obtained lawfully
-   A chronological record of performance, requests for correction, and promised payment dates
-   Materials showing the loss claimed and the connection between the alleged breach and that loss

Preserve original files and metadata where possible. A concise chronology matching each assertion to a document often makes the issues easier to evaluate.

## What Does Content-Certified Mail Prove?

Content-certified mail (내용증명, a postal service certifying the content and dispatch date of a written notice) can help establish what notice was sent and when. It does not by itself prove that every statement in the notice is true, that the recipient accepted the claim, or that a contractual right was validly exercised.

If receipt is important, preserve the delivery record as well. The wording should also match the intended purpose, such as demanding performance, giving a cure period, reserving rights, or notifying rescission or termination.

## Which Procedure May Be Appropriate?

-   **Negotiation and settlement:** The parties may resolve payment timing, partial performance, return of goods, security, confidentiality, and allocation of costs by agreement. Settlement terms should identify the obligations, deadlines, default consequences, and method of enforcement as clearly as possible.
-   **Judicial conciliation (민사조정, court-annexed settlement proceedings):** The court assists the parties in seeking an agreed resolution. Terms entered in the conciliation record have the same effect as a judicial settlement. The court may also issue a court-issued decision in lieu of conciliation (조정을 갈음하는 결정); a party may object within two weeks after service, and the legal effect depends on whether a timely objection is made.
-   **Payment order (지급명령, a summary court procedure for a monetary claim):** The court may issue an order without an oral hearing based on the application. The debtor may object within two weeks after service. A timely objection may lead to ordinary litigation, while a payment order that becomes final can serve as an enforceable title.
-   **Civil action:** Litigation may be appropriate where liability, the amount, evidence, counterclaims, or expert issues are contested. Jurisdiction, service, court fees, the expected duration, and enforceability should be considered before filing.
-   **Provisional attachment and other interim measures:** If later enforcement may be at risk, a creditor may consider provisional attachment (가압류, a court order preserving assets for a monetary claim) or another interim measure. The applicant must make the required prima facie showing and may be ordered to provide security. An interim order does not itself establish the claim or guarantee recovery.

## Limitation Periods and Other Deadlines

A limitation period should be checked at the beginning of the matter. Under the Civil Act, an ordinary claim is generally subject to a ten-year period, while a claim arising from a commercial transaction is generally subject to a five-year period under the Commercial Act. Some claims have shorter periods, and the starting point can vary with the type of claim and when it became exercisable.

A demand alone does not preserve its limitation effect indefinitely. Even where a demand made by content-certified mail qualifies as a demand for limitation purposes, a qualifying judicial claim, payment order, attachment, provisional attachment, or another step specified by law generally must follow within six months. Contractual notice periods, objection periods, appeal periods, and court-ordered deadlines should be checked separately.

## If the Contract Has a Foreign Element

For a contract involving a foreign individual or entity, an overseas place of performance, or assets abroad, the governing law, court jurisdiction, arbitration agreement, service of documents, language and translation of evidence, and recognition or enforcement of a judgment or arbitral award may all matter. A Korean court's jurisdiction and the law applied to the merits are separate questions. These issues should be reviewed before proceedings are started or a settlement is structured.

## How an Attorney Can Help

An attorney can organize the contract, performance history, evidence, and amount in dispute; assess available claims and defenses; prepare notices and settlement terms; and represent a party in negotiation, judicial conciliation, payment-order proceedings, civil litigation, provisional attachment, and enforcement. For a matter with a foreign element, the review may also cover governing law, jurisdiction, service, and cross-border enforcement.

## Related Issues

-   [Practice Areas: Civil Litigation and Dispute Resolution](/practice-areas/)
-   [Rent Disputes in Korea](/guide-rent)

## Official sources

This guide references the following official sources. The applicable rule and procedure may change with the contract, the parties, the nature of the claim, and the stage of the dispute.

-   [Civil Act — official current text](https://www.law.go.kr/법령/민법)
-   [Commercial Act — official current text](https://www.law.go.kr/법령/상법)
-   [Civil Procedure Act — official current text](https://www.law.go.kr/법령/민사소송법)
-   [Civil Execution Act — official current text](https://www.law.go.kr/법령/민사집행법)
-   [Judicial Conciliation of Civil Disputes Act — official current text](https://www.law.go.kr/법령/민사조정법)
-   [Act on Private International Law — official current text](https://www.law.go.kr/법령/국제사법)
-   [Arbitration Act — official current text](https://www.law.go.kr/법령/중재법)
-   [Supreme Court of Korea — electronic litigation information](https://jifi.scourt.go.kr/judiciary/information/etrial/index.html)

### Need Assistance?

If performance has stopped, payment remains outstanding, or a deadline is approaching, an early review of the contract and evidence can help identify the available options.

[Email K Law Office](mailto:kim@klawoffice.kr?subject=Inquiry%20-%20Contract%20and%20Payment%20Dispute)

All inquiries are handled with discretion.

### Related Guides

[Rent Disputes in Korea](/guide-rent) [Practice Areas](/practice-areas/) [All Guides](/legal-guides/)

© 2026 K LAW OFFICE

This guide is for general informational purposes only and does not constitute legal advice.

---

Source and current version: [K LAW OFFICE](https://klawoffice.kr/guide-contract-disputes)
Alternate language: [한국어](https://klawoffice.kr/ko/guide-contract-disputes)
This page provides general information only and is not legal advice. Visit the canonical page above for the current version and case-specific review.