Photograph by Yan Krukau on Pexels.
Monthly payroll, the four major insurances, withholding and year-end settlement — calculated in Korea, reported in English, and reconciled into your accounts rather than sitting in a separate system.
The single most common budgeting error we see from a new foreign entrant is treating gross salary as the cost of employment. In Korea it is not close.
On top of gross pay, an employer carries its share of the four major insurances, an accruing statutory severance entitlement, and — depending on the contract and the working pattern — statutory allowances that are easy to overlook until someone claims them. A headcount plan built on gross salary alone will be materially under-budgeted, and the gap tends to surface in the second year, when the first severance payments start landing.
That last point is the one that separates a payroll bureau from an accounting firm running payroll. If payroll lives in its own system and someone re-keys a summary journal each month, the two will disagree eventually. Ours posts straight into the ledger we maintain.
| When | What | Why it catches people out |
|---|---|---|
| Monthly | Withholding filing and insurance reporting | Deadlines are firm; late filing attracts penalties |
| February | Year-end settlement for the prior calendar year | Requires deduction evidence from every employee; volume is the problem, not complexity |
| March | Employment and industrial accident insurance annual reconciliation | Settles estimated against actual payroll for the year |
| On joining | Insurance enrolment, contract, alien registration if foreign | Enrolment is time-limited, not “when convenient” |
| On leaving | Severance settlement, insurance loss reporting, final tax | Severance is a legal entitlement, not a negotiation |
Two documents cause a disproportionate share of Korean employment disputes.
The employment contract. Korea requires certain terms to be stated in writing and given to the employee. Contracts translated directly from a foreign template routinely conflict with the Labor Standards Act — most often on working hours, on the treatment of allowances within the minimum wage calculation, and on termination, where foreign-drafted at-will language is simply unenforceable.
The rules of employment (취업규칙). An employer above the statutory employee threshold must prepare and file rules of employment, and must follow a defined process to change them — including consent from employees where a change is disadvantageous. Companies that grow past the threshold without noticing tend to find out during an inspection.
If you employ non-Koreans, the payroll question and the immigration question are the same question, because the right to work is tied to visa status and to the employer named on it.
We handle work visa applications and renewals alongside payroll for that reason — an employee whose status lapses is not a payroll input, and an employee whose sponsoring employer changes needs both the immigration filing and the insurance records updated in step. Nationality also determines whether a social security agreement applies to their pension position, which is a payroll calculation.
The first month involves reconciling what you have been doing against what should have been happening. That review is where the value is — it is normally the first time anyone has checked whether the previous arrangement was correct, rather than merely consistent.
Payroll posts into the books we keep under accounting and bookkeeping, and the withholding filings sit inside the wider tax and VAT calendar.
The government portals behind this topic. Opens in a new tab.
National Pension, National Health Insurance, Employment Insurance and Industrial Accident Compensation Insurance — 사대보험 in Korean. Every employer with employees must enrol them, report changes, and remit contributions monthly. Pension, health and employment insurance are split between employer and employee at rates set annually; industrial accident insurance is paid entirely by the employer, at a rate that varies by industry. Because the rates are revised each year, the correct figure is always the one published by the relevant authority for the year in question — we apply the current year’s rates and show them on the payroll report so you can see what changed.
An employee with at least one year of continuous service is entitled to a statutory retirement benefit on leaving, calculated from average wage and length of service under the Employee Retirement Benefit Security Act. Two things surprise foreign employers. First, it is a legal entitlement rather than a discretionary payment, so it applies on resignation as well as dismissal. Second, it accrues from day one of the qualifying period, which means an entity that has never booked the liability has been understating its cost base for as long as it has had staff. We accrue it monthly so the number in your accounts is the number you will actually pay.
Korean income tax is withheld monthly on an estimated basis and then reconciled once a year for every employee, in February, against the prior calendar year. Employees submit deduction evidence — medical costs, education, housing, pension contributions, dependants — and the difference between tax withheld and tax actually due is refunded or collected through payroll. For an employer it is an annual administrative event with a hard deadline and a lot of individual paperwork. For a foreign employee it is often the first time they discover Korea has a meaningful deduction system.
No, and we would rather say so plainly. Running payroll requires a registered Korean employer. If you have no entity yet, your options are to establish one — see our note on choosing between a subsidiary, branch and liaison office — or to use an employer-of-record arrangement, which is a different service with different legal consequences for control, IP and permanent establishment risk. We are happy to talk through the trade-off even where the answer is that you do not need us yet.
Usually yes, but nationality matters. Korea has social security agreements with a number of countries, and depending on the agreement a seconded employee may be exempt from Korean pension contributions while remaining covered at home, or may be able to claim a lump-sum refund on departure. Which applies depends on the specific agreement and the employee’s status, so it is worth checking per person rather than assuming a general rule. Getting it wrong is expensive in both directions — unnecessary contributions, or arrears with penalties.
More confidential than an in-house one, which is often the reason a small office outsources in the first place. In a Korean office of fifteen people, the person who runs payroll knows what everyone earns, including their own manager. Moving the calculation outside removes that. Payslips are distributed individually; salary data is not shared with local staff who do not need it.
A December year-end Korean subsidiary files something in ten months out of twelve. Here is the whole calendar in one place, including the one annual filing that no longer exists and the one that becomes monthly in 2027.
Four of Korea's 2026 public holidays land on a Saturday. Two of them buy a Monday back and two vanish, and the difference is written into a presidential decree that most foreign-owned payrolls have never read.
Three changes to Korean parental leave take effect on 18 September 2026, and a fourth already did on 20 August. Each one moves a date your payroll calendar depends on, and one of them creates a leave entitlement that did not exist before.
