From Gross Salary to Take-Home Pay in South Korea (2026): Social Insurance, Withholding Tables and the 3.3% Freelancer Rule

This is an explainer of the South Korean system. If you have just signed a Korean employment contract, or you are comparing an offer in Seoul with one elsewhere, the gap between the annual salary (yeonbong) and what arrives in your account each month is made of two very different things. Social insurance contributions are a fixed percentage of pay and are final once deducted. Income tax withheld each month is only a provisional figure that gets recalculated after the year ends. Most of the confusion around Korean payslips comes from mixing the two up.

Korean employees pay into four schemes, usually called the “four major insurances” (4dae boheom). The employer pays an equal share of each on top of salary.

Scheme	Total rate	Employee share	Change from 2025
National Pension	9.5%	4.75%	9% to 9.5%
National Health Insurance	7.19%	3.595%	7.09% to 7.19%
Long-term care insurance	0.9448% of pay	0.4724% (about 13.14% of the health premium)	0.9182% to 0.9448%
Employment insurance (unemployment benefits)	1.8%	0.9%	unchanged

The pension rate is the headline change. It sat at 9% from 1998 through 2025. A reform passed in 2025 raises it by 0.5 percentage points a year from 2026 until it reaches 13% in 2033, and the National Pension Service says the income replacement rate was set at 43% under the same reform. Because employer and employee split the rate, the employee’s share grows by 0.25 points each year for eight years. On KRW 4 million of monthly taxable pay, the pension line on the payslip rises by about 10,000 won every January.

Long-term care insurance is not charged on pay directly. It is the health premium multiplied by 0.9448 / 7.19, roughly 13.14%, which is why it always appears on a payslip as a little over one-eighth of the health insurance line.

For 2027 the Ministry of Employment and Labor has proposed raising the unemployment-benefit rate from 1.8% to 2.0% (employee share 0.9% to 1.0%). As of September 2026 that was a government proposal, not a decision.

The pension ceiling moves in July, not January

Pension contributions are charged on “standard monthly income” held between a ceiling and a floor that change every July. According to the National Pension Service, the band was KRW 400,000 to 6,370,000 from July 2025 to June 2026 and is KRW 410,000 to 6,590,000 from July 2026 to June 2027. Above the ceiling the employee contribution stops at 6,590,000 x 4.75%, about KRW 313,000 a month, whether you earn 8 million or 20 million.

A high earner’s pension deduction therefore changes twice in 2026: in January, when the rate rises to 9.5% while the old 6.37 million ceiling still applies, and in July, when the ceiling rises. Health insurance also has upper and lower limits, but they sit far outside ordinary salaries; the 2026 figures could not be confirmed on an official page, so they are not quoted here.

Contributions follow reported pay, then get reconciled

Contributions are based on the pay figure the employer has reported to the insurers and are reconciled later against actual earnings. Health insurance does this every April using the previous year’s total pay. If you got a large raise last year, expect a one-off extra health insurance deduction on this year’s April payslip. It is the most common reason an April payslip looks wrong.

Income tax: a provisional number from a table

Every month the employer looks up the government’s simplified withholding table, Annex 2 of the Enforcement Decree of the Income Tax Act. The table is indexed by monthly taxable pay and by the number of qualifying family members including yourself. Each cell is roughly the tax you would owe over a year at that pay with only basic deductions, divided by 12. It knows nothing about your medical costs, card spending, pension savings or other deductions.

Those are handled in the year-end tax settlement (yeonmal jeongsan). Early the following year the employer calculates the actual tax for the year and compares it with what was withheld. The difference is refunded or collected, typically through the February or March payroll. A refund is not a bonus; it is your own overpayment coming back.

A few practical consequences follow:

Declaring more dependents increases monthly take-home but does not reduce the year’s tax. Dual-income couples who both claim the same child end up repaying at settlement.
You can choose the withholding level. Employees may have 80%, 100% or 120% of the table amount withheld (Enforcement Decree Article 194). People who dislike a February bill pick 120%; people who need cash flow pick 80%. The annual tax is the same.
Children aged 8 to 20 reduce the monthly amount further, which pre-applies the child tax credit claimed at settlement.
Local income tax adds 10% of the income tax.

Bonuses paid in a lump, common around Lunar New Year and Chuseok, fall into a much higher row of the table for that month. That extra withholding is also reconciled at year end.

For readers comparing systems, the structure resembles a pay-as-you-earn system with an annual reconciliation carried out by the employer rather than the employee. Most Korean salaried workers never file a personal return unless they have other income.

The tax-free meal allowance

Up to KRW 200,000 a month paid as a meal allowance is exempt from income tax for employees who are not otherwise given meals (Income Tax Act Article 12). The limit was raised from 100,000 won in January 2023. Tax-exempt pay is also excluded from the social insurance base, so a contract that separates out a meal allowance leaves more in your pocket for the same headline salary. The exemption does not apply if the employer already provides meals through a canteen or vouchers, and the allowance needs to be set out in the pay rules or contract. The trade-off is slightly lower pension contributions and, eventually, a slightly smaller pension.

Freelancers: 3.3% withholding and the May return

When a Korean business pays an individual for services outside an employment contract, it withholds 3% income tax plus 0.3% local income tax (Income Tax Act Article 129). That is the “3.3%” Korean freelancers talk about.

Like the employee table, 3.3% is a prepayment. In May of the following year the freelancer files a comprehensive income tax return, subtracts business expenses and deductions, and compares the real tax with what was withheld. Low earners with no other income often receive a refund; higher earners, or people who also have salary income, may owe more. Skipping the May return means leaving any refund unclaimed.

The bigger difference is social insurance. A 3.3% contractor is not an employee subscriber, so no employer pays half. Pension and health insurance are paid in full by the individual as a regional subscriber, and employment insurance either does not apply or follows separate schemes for artists and certain service workers. KRW 3 million “after 3.3%” and KRW 3 million as an employee are not comparable numbers.

Whether someone is really an employee depends on how the work is done, such as fixed hours and direction by the business, not on what the contract is called. A person misclassified as a freelancer can claim employee rights such as weekly holiday pay and severance.

The 2026 minimum wage and the 209-hour month

The 2026 minimum wage is KRW 10,320 an hour, 2.9% above 2025’s 10,030. It was the first time in 17 years that the Minimum Wage Commission reached the figure by agreement between labour and business representatives. The Ministry of Employment and Labor gives the monthly equivalent as KRW 2,156,880, based on 209 hours.

The 209 hours are 40 working hours plus 8 hours of paid weekly holiday, times 4.345 weeks a month (365 / 7 / 12), rounded. Without the holiday hours a 40-hour month is about KRW 1.79 million, so roughly one-sixth of the monthly minimum is weekly holiday pay.

That holiday pay comes from Article 55 of the Labor Standards Act: a worker who attends all scheduled days in a week is owed at least one paid day off. Article 18(3) removes this right for workers whose scheduled hours average under 15 a week over four weeks, which is why part-time contracts at exactly 14 hours are common. For short-hours workers the paid holiday is usually prorated as weekly hours / 40 x 8.

Checking compliance is not only a matter of base pay. Under the Minimum Wage Act some regular monthly allowances count toward the minimum while items such as overtime and night premiums do not, so a payslip with a small base wage and many allowances needs a closer look.

How the take-home ratio falls as pay rises

With 2026 rates, a KRW 200,000 tax-free meal allowance, no dependents and equal monthly payments:

Annual salary	Monthly gross	Monthly take-home	Ratio
KRW 30 million	2,500,000	2,244,424	about 89.8%
KRW 40 million	3,333,333	2,935,774	about 88.1%
KRW 60 million	5,000,000	4,195,404	about 83.9%
KRW 100 million	8,333,333	6,530,903	about 78.4%

Below the pension ceiling, social insurance is close to a flat 9.7% of taxable pay, so it barely moves the ratio. Progressive income tax does the work: monthly withholding is KRW 29,160 at 30 million and 986,720 at 100 million, more than 30 times higher for 3.3 times the pay. At the top, the pension ceiling actually makes social insurance a smaller share.

What your employer pays that you never see

The employer matches the pension, health, long-term care and unemployment contributions, and on its own pays employment-stability and training contributions, industrial accident insurance, and accrues severance for anyone who stays a year or more. An employee on KRW 40 million costs the business considerably more than 40 million, which partly explains why some businesses prefer 3.3% contracts.

When your payslip does not match

Is it January to June or July to December? The pension ceiling differs.
Is it April? A health insurance reconciliation may be included.
Was a bonus paid that month?
What dependents, children and withholding level (80/100/120%) did you declare?
Are there tax-exempt items other than meals, such as a car allowance or childcare allowance?

Once those are accounted for, gross-to-net in Korea is a set of fixed percentages plus one table lookup. To run your own numbers, use the Korean salary calculator, which also has an hourly mode with weekly holiday pay and a freelance mode that works backwards from a target net amount.