Definition
In Korea, the annual leave allowance (yeoncha sudang) is the cash payment an employee gets for paid leave left unused over the year. It pays for working instead of using a legally guaranteed right to rest, and the company converts the remaining days into daily pay and hands it over.
You get paid back for working instead of resting
A discount coupon from a store simply disappears when it expires. Paid leave at work is a different thing entirely. Paid leave is "a legal right to take a day off and still get a full day's pay." If you take leave, you rest and get paid. If you skip it and come to work, you've worked on a day you were entitled to rest.
So leave you couldn't use up within its one-year validity doesn't vanish into thin air. It turns into cash. You gave up your right to rest and came in to work, so you get paid in cash for those days. Korean law formally calls this the "allowance for unused annual paid leave."
Generally, at a workplace with 5 or more regular employees, you earn at least 15 days of annual leave if you attend at least 80% of the year. You use leave on the days you need it during the year, and the money you get for the days left over is what we call the annual leave allowance.
How is my annual leave allowance calculated?
To calculate the allowance, Korean companies use "ordinary wages," which reflect the value of one day of your work. Ordinary wages are pay that is promised for your set work and paid regularly and uniformly. Base pay and various regular allowances fall under it, and it's converted into an hourly or daily rate. The allowance comes down to one idea: your daily pay times the number of leave days left.
For example, say an employee works 8 hours a day and earns 10,000 won per hour in ordinary wages. Daily pay is 80,000 won (10,000 won x 8 hours). If 5 days of leave are left after a year of hard work, you multiply 80,000 won by 5 days and receive 400,000 won as the allowance.
To be more precise, depending on company rules, some employers use average wages instead of ordinary wages, which are based on the actual pay you received over the last 3 months. Still, most workplaces set daily pay using ordinary wages, because the calculation is clear and easy to predict.
Leftover leave doesn't always turn into money
Having leave left over doesn't mean every company has to pay you cash. Korea's Labor Standards Act has a leave use promotion system, which encourages workers to actually rest instead of getting paid.
Things change if a company, at the times set by law, asks you in writing to submit a plan for when you'll use your remaining leave, and you still don't take it. Suppose the company also designates specific dates, and you come to work on those days anyway. If the company made it clear that it would not accept your work on those days, it no longer has to pay the allowance, and your leftover leave simply expires.
Also, small workplaces with fewer than 5 regular employees have no legal duty to provide paid annual leave. So unless your employment contract or company rules promise it separately, no annual leave allowance legally arises at a workplace with fewer than 5 employees. This is worth remembering.
Common misconceptions
If a company just tells you verbally to use your leave, it doesn't have to pay the annual leave allowance.
A simple verbal nudge isn't enough. The company is released from its duty to pay only if it formally promoted leave use, at the times set by law and through a strict written procedure (paper documents, electronic approval, and so on).
Where you meet it
You earned 15 days of leave during the year but used only 10 before quitting, so you receive pay for the remaining 5 days along with your severance settlement.
A busy project kept you from using your leave, so on the first payday of the next year, 3 days of ordinary wages are added to your salary account.
In one sentence
It's a system that settles leave you couldn't use up during the year by paying it out in cash at your daily rate.