"You will work the holiday and take next Wednesday off instead." What lets an employer say that is one sentence - the proviso to art. 55(2) of Korea's Labor Standards Act: "where agreed in writing with the workers' representative, it may be substituted with a specific working day." That proviso hangs on paragraph 2 only. Art. 55(1), the weekly rest day, carries no such sentence. The annual-leave substitution checker pointed at this - "that moves the holiday, it does not use leave" - and left it there. Today the text closes it.
1. The only holiday the Act says may be moved is a public holiday. The proviso to art. 55(2) - the representative's written agreement plus a specific working day. The weekly rest day and company holidays have no such sentence.
2. Where the substitution stands, the day becomes a working day and the premium disappears. Where it does not, art. 56(2) adds 50% within 8 hours and 100% beyond - 72,000 won on ten hours at 12,000 an hour.
3. The two failures carry different penalties. Not giving the holiday is art. 110, two years; not paying the premium moves to art. 107 on 8 October 2026 - five.
It reads arts. 55, 56, 57, 18(3), 24(3), 110 and 107 of Korea's Labor Standards Act, arts. 30 and Table 1 of its Enforcement Decree, and arts. 2 and 3 of the Regulation on Public Holidays of Government Offices, as written. Exactly one sentence in the statute moves a holiday to another day: the proviso to art. 55(2) - "where agreed in writing with the workers' representative, it may be substituted with a specific working day." The holidays it speaks of are the public and substitute holidays named in Decree art. 30(2); art. 55(1), the weekly rest day, carries no such proviso. Where the substitution stands, that day becomes a working day and no holiday premium is due; where it does not, the day stays a holiday and art. 56(2) adds 50% within eight hours and 100% beyond. Art. 57 lets the employer give leave instead of that premium, again by written agreement with the representative. At four or fewer workers, Decree Table 1 omits both art. 55(2) and art. 56, so there is neither a paid public holiday nor any premium; and for a worker whose weekly contractual hours average under 15, art. 18(3) says art. 55 does not apply. Failing to give the holiday carries up to two years or 20 million won under art. 110; failing to pay the premium moves to art. 107 on 8 October 2026 - up to five years or 50 million won. The checker reads the statutory requirements only - not the wording of the agreement, the representative's standing, or whether the hours also count as overtime. An estimate - confirm with your regional labour office or the Ministry call centre (1350).
Only one paragraph carries the proviso
Art. 55 has two paragraphs. Paragraph 1: "the employer shall guarantee the workers at least one paid day off a week" - the weekly rest day. Paragraph 2: "the employer shall guarantee the workers the holidays prescribed by Presidential Decree as paid holidays" - and the proviso is attached here alone. Decree art. 30(2) names those holidays: the public holidays under each item of art. 2 of the Regulation on Public Holidays of Government Offices (excluding item 1) and substitute holidays under art. 3 - Seollal, Chuseok, Children's Day, the national days, substitute holidays. Everything but Sundays.
So by the shape of the text, the only holiday that can be moved is a public holiday. Employers do shift the weekly rest day, and there is administrative practice about it, but the Act contains no such sentence. This checker reads the text, so for the weekly rest day it answers "outside the provision" - which does not mean forbidden, it means the Act does not answer. A company holiday is the same: it exists because the rules of employment or a collective agreement say so, and whether it can be moved is a question for that document.
Paragraph 2 came into force in stages: 1 January 2020 for 300 or more workers, 1 January 2021 for 30 to 299, 1 January 2022 for 5 to 29. Before those dates a public holiday was not a statutory paid holiday, so there was nothing to substitute. The Regulation was amended on 30 April 2026 to add Labour Day (1 May) to art. 2, in force 11 May 2026.
One of 72 paths works
The checker multiplies five axes: three kinds of holiday × three kinds of agreement × two answers on naming the day × two workplace sizes × two bands of weekly hours = 72 combinations. Exactly 1 is a valid substitution - a public holiday, the representative's written agreement, a specific working day named, five or more workers, 15 contractual hours a week or more.
The rest come out as "outside the provision" (36), "not applied" (30) and "not a substitution" (5). Those five are the ones that sting: the day is a public holiday and the workplace qualifies, but the agreement or the named day is wrong. The representative is defined in art. 24(3) as "the trade union organised by a majority of the workers, or where there is none, a person representing the majority". A stack of individual consent forms is not that, and neither is a notice on the board.
The word "specific" is not decoration either. An agreement that says "a day off will be given in due course" names no day, so the holiday has moved nowhere and stays where it was. What the text asks for is the date of the working day being swapped in.
Eight hours is the boundary
Where the substitution fails the day is still a holiday, and working it brings art. 56(2): "8 hours or less of holiday work: 50 per cent of the ordinary wage"; "holiday work beyond 8 hours: 100 per cent". Counted in hours, the premium is 2 on a four-hour day, 4 on eight and 6 on ten. The money side in detail - night work on top, the paid-holiday portion already inside a monthly salary - is what the holiday work pay calculator does. This article asks the question that comes before it: is the day still a holiday?
Past the eighth hour the slope doubles - that is the shape of the provision. The premium need not be money: art. 57 says the employer may, "by written agreement with the workers' representative, give leave in place of paying wages for overtime, night and holiday work under art. 56." For a 10-hour holiday that is 10 hours worked plus 6 hours of premium = 16 hours of leave. This too needs the representative's written agreement - written agreement appears twice in this article, and they are two different agreements under two different provisions.
One sheet of paper decides 72,000 won
Take someone on an ordinary hourly wage of 12,000 won who works 10 hours on a public holiday. Either way the pay for the hours worked is 120,000 won. If the substitution stood, the day is a working day and that is the end of it. If it did not, a premium of 72,000 won is added, making 192,000 won.
The gap is 72,000 won - one sheet of paper. At four or fewer workers, though, the premium is zero either way: the chapter-4 row of Decree Table 1 lists only arts. 54, 55(1) and 63, so neither art. 55(2) nor art. 56 is there. No paid public holiday, and no overtime, night or holiday premium at all. And for a worker whose weekly contractual hours average under 15, art. 18(3) says "arts. 55 and 60 shall not apply" - there is no statutory holiday to move.
What the calculator returns is the bill for that one day. Whether those hours also push the week past 40 and count as overtime depends on the rest of the week, and the checker cannot see it.
Two years for the holiday, five for the premium
The two failures carry different penalties. Not giving the holiday breaks art. 55, and art. 110 provides up to two years' imprisonment or a fine of up to 20 million won. Not paying the premium breaks art. 56 - and that one moves on 8 October 2026. Today it is art. 109, up to three years or 30 million won; under the amendment of 7 April 2026 it moves to art. 107, up to five years' imprisonment or a fine of up to 50 million won.
Art. 107 was the provision for violence (art. 8), forced labour (art. 7) and exploitation by intermediaries (art. 9). The wage breaches - settlement of accounts (art. 36), payment of wages (art. 43), shutdown allowance (art. 46) and now the premium (art. 56) - join them there. The same amendment deletes art. 109(2), the bar on prosecuting against the victim's expressed wishes, and re-enacts it as art. 107(2). This is not a renumbering.
Put together: working an employee on a day whose substitution failed, and not paying the premium, lands on a heavier provision than skipping the holiday altogether. Getting the written agreement right is the cheapest path for both sides.
Questions that remain
The company wants me to sign a "public holiday substitution consent form".
Individual consent is not the representative of art. 24(3). Signing does not make it a substitution under the proviso, and the day stays a paid holiday. It does not stop you resting that day - the question is whether the premium attaches if you work it.
But some companies move the weekly rest day.
The Act has no provision for it. It is an area argued over where the rules of employment provide a basis and notice is given in advance, and this checker answers only "outside the provision". That is for the labour office to read.
What if I end up working the substituted day too?
Where the substitution stands, the original public holiday became a working day and the swapped-in day became the holiday. Working that day is holiday work. The holiday did not disappear - it changed places.
They offer leave instead of the premium.
That is art. 57, and it also needs written agreement with the representative. The hours are the wage equivalent - 16 hours for a 10-hour holiday. An individual "take a day off instead" is not the route the statute lays out.
Sources
Korean Law Information Center, Labor Standards Act - statute text - art. 55(1), (2) and the proviso, the staggered commencement of para. 2 (addenda to the 20 March 2018 amendment), art. 56(1)-(3) (premiums), art. 57 (compensatory leave), art. 18(3) (very short hours), art. 24(3) (workers' representative), art. 11(2) (four or fewer), arts. 110, 109 and 107 (penalties; arts. 107 and 109 amended 7 April 2026, in force 8 October 2026).
Enforcement Decree of the Labor Standards Act - decree text - art. 30(1) (the weekly rest day goes to those with full attendance), art. 30(2) (the holidays the Decree names), art. 7 and Table 1 (provisions applying to four or fewer workers - chapter 4: arts. 54, 55(1), 63).
Regulation on Public Holidays of Government Offices - regulation text (in force 11 May 2026) - art. 2 (the list; Labour Day added by the 30 April 2026 amendment) and art. 3 (substitute holidays).
Checker verification. Three kinds of holiday × three agreements × two answers on the named day × two sizes × two bands of weekly hours × three lengths of work × four hourly wages = 864 cases were checked against the statutory logic in both languages - the verdict, the reasoning line, the pay for hours worked, the premium, the day's total and the compensatory hours all matched, confirming that 1 of 72 combinations is a valid substitution.
Left for another day
How the representative is chosen. Not in the text.
Moving the weekly rest day. Outside the provision, so this article does not answer it.
Where the hours are also overtime. That depends on the rest of the week, and sits outside this checker.
Based on the 2026 provisions. The proviso's requirements, the premium rates, the commencement dates and the penalties are the statute's; "1 of 72" and the 12,000-won example are our arrangement. The checker is an estimate and reads neither the wording of the agreement nor the representative's standing - confirm with your regional labour office or the Ministry of Employment and Labor call centre (1350).
