Termination Payroll in Korea: What Must Be Calculated, Filed and Funded

A dismissal decision in Korea produces two separate workstreams. The first is legal: whether the employer has a justifiable reason and has followed the required procedure. The second is operational: what payroll must calculate, file, fund and document once the final date is fixed.

Overseas headquarters usually focuses on the first and assumes the second is a single closing payslip. It is not. A Korean exit generates several calculations with different bases, several filings with different deadlines, and a set of documents that must tell the same story.

The exit is not one calculation

By the final working date, the employer normally has to resolve the following, and they do not all use the same wage base.

Earned compensation through the last day, including overtime, commissions and any contractual bonus that has vested.

Unused annual leave, where payable.

Statutory retirement benefits. An employee with at least one year of continuous service who meets the applicable working-hour requirement is generally entitled to a minimum broadly equivalent to 30 days of average wages for each year of service. Average wages are not the same as ordinary wages, and the components that enter the calculation depend on how each payment was structured.

Departure-year wage tax settlement. The employer performs a year-end-style settlement when paying the wage for the month of departure, and issues the withholding receipt. Full-year deduction information is usually not yet available, so the settlement uses what can be applied at that time. The employee may later aggregate the income with a new employer or file separately.

National Health Insurance reconciliation, and social insurance loss reporting.

Employment Insurance loss report and separation reason. The insured-status loss date is generally the day after the final working date. The report is normally filed by the 15th day of the month following the month of loss, and without delay if the employee asks earlier.

Job separation confirmation, where the former employee or the Employment Center requests it. This must generally be issued within 10 days. Work24 guidance indicates an administrative fine of up to KRW 300,000 for failure to provide it in time, and up to KRW 3 million for false information.

The gap that causes most corrections

The characterisation of the exit has to reach payroll accurately, and often it does not.

A typical sequence looks like this. Headquarters calls it a termination. The Korean manager asks for a resignation letter so the system has a document. Counsel drafts a mutual separation agreement. Finance describes the payment as severance. Payroll receives a final date and a note saying the employee is leaving, and selects a code.

Each team believes it is describing the same event. The resulting records describe four different ones.

That inconsistency does not usually surface at the time. It surfaces when the former employee applies for unemployment benefits and disputes the reported reason, or when a dismissal is challenged and the company’s own documents are produced as evidence.

The employer does not decide benefit eligibility — the competent Employment Center does — but the employer’s report of the insured period, wage data and separation reason forms part of that review. Reporting a reason as a favour to either party is not a neutral administrative choice.

What a disputed exit actually costs

Where a dismissal is challenged, the administrative unfair-dismissal remedy generally applies to workplaces ordinarily employing five or more workers, and an application must generally be made within three months of the dismissal. A case can move from the Regional Labor Relations Commission to the National Labor Relations Commission and then to administrative litigation.

Even where the parties settle first, the employer has usually already incurred external legal fees, management time, back-pay exposure, payroll reversals, social insurance adjustments, withholding corrections and the tax treatment of a settlement payment.

Notice pay does not remove this. Paying 30 days of ordinary wages in lieu of notice addresses when a dismissal may take effect. It does not establish that the reason was sufficient.

What to confirm before the final date is communicated

• Which party initiated the separation, and on what stated grounds
• Whether the exit is a resignation, mutual separation, dismissal, redundancy or contract expiry
• That the resignation letter, separation agreement and termination notice describe the same event
• The final working date and the resulting Employment Insurance loss date
• Whether written notice is required, and whether the stated reason is specific enough
• Which payments are severance-bearing and which are not
• Who prepares the loss report and the job separation confirmation
• How the final payment will be funded, and by when
• What the employee will be told about the tax treatment of each amount

Where we fit

Korea Payroll Partners handles the payroll side of an employee exit: final compensation, unused leave, statutory severance and retirement pension processing, departure-year wage tax settlement and withholding receipt, National Health Insurance reconciliation, social insurance loss reporting, Employment Insurance separation filings and the job separation confirmation, and execution of the final payment.

We do not decide whether a dismissal is legally justified. Where the reason is contested or the characterisation of the exit is in question, we coordinate with specialised Korean labour counsel and make sure the payroll and government filings match the position that counsel confirms.

We have handled exits ranging from short-service departures to senior executives, including corrections after an original filing.

Before you communicate the decision

If a Korean exit is being planned, send us the intended final date, the proposed characterisation and the compensation elements involved. We will set out the calculations, filings and deadlines that follow, and identify anything that should be resolved before the employee is told.

Email our payroll team before the final date is communicated. Correcting an exit after filing is materially more expensive than preparing it.

Further reading

For the dismissal-law analysis — justifiable cause, evidence, procedure and written notice — see the detailed explanation published by our sister site: Terminating an Employee in Korea: Employer Guide.

Official References

• Korean Labor Standards Act – National Law Information Center
• Employee Retirement Benefit Security Act – National Law Information Center
• National Labor Relations Commission – Remedy for Unfair Dismissal
• Work24 – Job Separation Confirmation

This article provides general information as of December 23, 2025. It is not legal advice. Entitlements, filing deadlines and available remedies depend on workplace size, employment type, contract terms and the specific facts. Confirm current requirements and obtain Korean labour-law advice for a live case.

Termination · Severance · Employment Insurance · Payroll Compliance