Legal information

Yes. Korean labor law looks at one thing: did you do work for an employer in return for pay. It does not ask whether you had permission to be in the country or to take that job. A person who worked without status is still a worker (근로자) under the Labor Standards Act, and the employer still owes every won that was earned. Courts have held this for decades, so the employer's line "you were illegal, so there is nothing to pay" has no legal weight.

What is different for you is not the right itself. It is how you prove the work, what the employer may try, and how to protect yourself while the money is collected.

Does working without permission cancel the debt?

No. Working outside your status is a matter between you and the immigration office. The wage is a matter between you and the employer. The two are separate, and one does not erase the other.

Keep in mind the other side of that coin. Hiring a person who has no work status is itself an offence for the employer, with a possible prison term of up to three years or a 30 million won fine. The employer who threatens "I'll report you" is describing a situation where they would be reported too. In practice, that threat is almost always a tactic to make you drop the claim.

And one sentence on the point most people worry about: since November 6, 2025, a labor inspector handling a wage complaint does not pass a worker without status on to immigration, and a separate article on this site explains the rule and its limits.

How do I prove I worked there if there was no contract and I was paid in cash?

This is where undocumented cases are won or lost. Most employers who hire without papers also pay without papers, so you should expect to build the proof yourself.

Useful material, roughly in order of weight:

• Any transfer at all. Even one bank payment from the employer, or from the employer's wife, son or manager, shows a relationship.
• Photos at the site. Pictures of you in uniform, at the machine, on the scaffolding, in the kitchen, with dates in the file data.
• Entry records. Fingerprint or card logs, dormitory records, a company bus or shuttle.
• Co-workers. A colleague who is willing to say "he worked next to me from March to August" is strong, and a co-worker who has a visa has nothing to fear by saying so.
• Chat history. Shift schedules, "come at 7 tomorrow", "no work on Sunday", complaints about pay.
• Your own daily note. Date, start, end, break, what you did. Begin today if you have not.

If you had an informal boss, such as a foreman (반장) or a subcontractor (하청) rather than the company that owns the site, write down both names. Who is legally your employer is a question a lawyer should look at, because on construction sites the answer decides who you can claim from.

What can the employer say that is actually true?

Some objections are real and should be prepared for.

Where do I go and what name do I use?

The complaint (진정) is filed at the labor office (지방고용노동청) covering the district where the workplace is. Without a residence card (외국인등록증), use your passport. If the passport is expired or held by someone else, say so at the counter; it does not cancel the complaint, but have a copy or a photo of the data page ready.

Give the workplace address, the employer's name as you know it, the months worked, and the amount you calculate. If you cannot calculate the amount exactly, write what you know and let the inspector work from there.

Is court an option instead?

Yes. A wage claim can also go directly to court as a civil suit, and for amounts of a few million won it is handled under a simplified procedure. Court is slower than the labor office but ends with a judgment that can be enforced against the employer's bank account or property. For a worker without status, the labor office is usually the first step, because the inspector's confirmation of the unpaid amount is useful later, including for the government substitute payment system if the employer cannot pay.

I may have to leave, or be ordered to leave, before it ends. Then what?

The claim survives your departure. Sign a power of attorney (위임장) for a lawyer, or someone you trust, before departure, while you can still sign in person, and leave a bank account that can receive money. If you are placed in immigration detention or receive a departure order, tell the inspector immediately and ask that your statement be taken before you leave. Whether a statement can be taken inside a detention facility depends on the office, so ask rather than assume.

Next step

Work out the amount first with the wage calculator, including overtime, night and holiday premiums, so you walk in with a number. If the employer disputes who hired you, or you expect to leave Korea soon, talk to a lawyer before filing. Consultations are paid; when you contact us, a staff member will call you back and explain the fee.

법무법인 대한중앙
1533-7377

Rules applied

Labor Standards Act (근로기준법) Article 2(1)1 (a worker is anyone who provides labor for wages, whatever the type of work), Article 6 (no discrimination in working conditions on grounds of nationality), Article 43 (wages paid in full, directly, in money), Article 49 (wage claims lapse after three years), Article 104 (a worker may report violations and may not be dismissed or disadvantaged for it), Article 109 (penalty for unpaid wages: up to three years in prison or a fine of up to 30 million won). Immigration Act (출입국관리법) Article 18(3) (prohibition on employing a person without a work status) and Article 94 no. 9 (penalty for the employer: up to three years or 30 million won). Courts have held that a worker without status is a worker under labor law: 대법원 97다18875. Reporting exemption for wage investigations: Immigration Act Enforcement Rules (출입국관리법 시행규칙) Article 70-2 no. 5.

This is general information, not legal advice. Every case is different.