Dismissal by Your Employer in Germany: The Three Week Deadline Explained

If your employer in Germany has just handed you a Kündigung, the calendar matters more than almost anything else in the letter. German law gives you a short, strict window to challenge a dismissal, and that window starts running the day the letter reaches you, not the day you read it or the day you find a lawyer.

This page explains what a Kündigung by an employer can and cannot do, which employees the Kündigungsschutzgesetz (KSchG) actually protects, and what to check in the first few days. It also sets realistic expectations: most disputes end in a negotiated settlement, not a courtroom victory.

Information last verified on 19 July 2026. This page provides general legal information and does not constitute legal advice in an individual case.

The three week deadline is the single most important date on the letter

§ 4 KSchG requires an employee to bring a claim before the Arbeitsgericht (labour court) within three weeks of receiving a written dismissal, seeking a ruling that the termination is invalid. The statute is direct about the timing: the clock starts on Zugang, meaning the day the letter actually reaches you, not the date printed on it and not the day you open it.

Miss the three weeks and the dismissal is, with very limited exceptions, treated by law as socially justified and effective regardless of what actually happened. This applies even to a dismissal that would otherwise clearly have failed, such as one issued to a long serving employee with no valid reason. The three week rule is why the first conversation with an advisor after receiving a Kündigung should happen within days, not weeks.

Step one: confirm the letter is actually valid in form

Before anything else, check that the dismissal meets the basic formal requirement in § 623 BGB: termination of an employment relationship must be in writing and signed by hand to take effect. A dismissal sent by email, text message, messaging app or delivered verbally in a meeting is legally void no matter how clearly it states the employer's intent.

A void dismissal for lack of written form still needs to be challenged inside the same three week window if there is any doubt about how a court would treat it, since relying on the form defect alone carries risk. Note the exact date of delivery as well. Both the date and the form of the letter can end up mattering more than the stated reason for dismissal.

Does the KSchG protect you at all? Two separate thresholds decide the answer

General dismissal protection under the KSchG does not apply to every employee automatically. Two conditions have to be met, and both are frequently misunderstood.

The six month Wartezeit

Under § 1 KSchG, the general protection against socially unjustified dismissal only applies once the employment relationship with the same Betrieb or Unternehmen has lasted, without interruption, for more than six months. An employee dismissed in their first six months on the job generally cannot rely on the KSchG's substantive protections, though the three week deadline and written form rule still apply to any dismissal.

The company size threshold is a dual test, not a single number

This is the part of German dismissal law most often oversimplified to "the KSchG only applies once a company has more than ten employees." That is not what § 23 KSchG says. It sets two different thresholds depending on when each employee was hired.

In both counts, part time employees are weighted rather than counted as whole heads: an employee working up to 20 hours a week counts as 0.5, and one working up to 30 hours a week counts as 0.75. Full time staff count as 1.0. The result is that a long established small business can still sit under the older, lower five employee bar for its longest serving staff, even while newer colleagues are measured against the higher ten employee line.

Worked example. A workshop founded in 1998 has employed the same five full time staff continuously since before 2004, and later hired two part time employees in 2022, each working 15 hours a week. The five long serving staff fall under the old five employee threshold in § 23 Satz 2 KSchG, since all five were hired before 1 January 2004, so the KSchG's general protections do not reach their dismissals. The two 2022 hires are measured separately against the newer ten employee threshold: at 0.5 each, they add up to 1.0, nowhere near ten, so they also sit outside general KSchG protection for now. If the workshop later grows to regularly employ ten or more people, counting part timers fractionally, employees hired after 31 December 2003 gain full KSchG protection once each individually passes their own six month Wartezeit.

Where the KSchG's general protection does not apply because of headcount, the employee is not without any rights. The three week filing deadline, the written form requirement, and special protections for groups such as pregnant employees or works council members still apply regardless of company size.

The three grounds for a socially justified dismissal

Once the KSchG applies, § 1 KSchG allows an ordinary dismissal only if it is sozial gerechtfertigt, meaning it rests on one of three recognized grounds.

Personenbedingt (personal reasons). Grounds rooted in the employee's own circumstances rather than any fault of theirs, most commonly long term or repeated illness that genuinely prevents the employee from continuing to do the job and where the outlook for recovery is poor.

Verhaltensbedingt (conduct reasons). Grounds tied to the employee's own behaviour, such as repeated unexcused absence or a serious breach of duty. Except in the most serious cases, courts expect the employer to have issued at least one prior written warning, an Abmahnung, giving the employee a chance to correct the behaviour before dismissing them for it.

Betriebsbedingt (operational reasons). Grounds arising from the business itself, such as a genuine reduction in the need for a role. The employer additionally has to carry out a Sozialauswahl, a social selection comparing the affected employee against others doing comparable work, weighing length of service, age, maintenance obligations and severe disability status, and generally choosing to dismiss the employee who would be least hard hit rather than simply picking whoever the employer would prefer to lose.

An employer that cannot show one of these three grounds, or that skips a required Abmahnung or Sozialauswahl where one was owed, is at real risk of losing a Kündigungsschutzklage. That said, whether a specific dismissal actually clears the bar is a fact heavy question that depends on the paperwork and the sequence of events, not a rule that can be answered in the abstract.

Extraordinary dismissal without notice

Separately from the ordinary dismissal rules above, § 626 BGB allows either party to end the employment relationship immediately, without observing any notice period, where a wichtiger Grund (compelling cause) makes it unreasonable to expect the relationship to continue even until the next ordinary termination date. This is the legal basis for what is commonly called a fristlose Kündigung.

The bar for a compelling cause is high, and courts weigh the specific facts and the employee's prior record closely. Critically, § 626 Abs. 2 BGB requires the party relying on this ground to declare the dismissal within two weeks of learning the facts that justify it. An employer that already knew about the underlying conduct for longer than two weeks before dismissing the employee has generally lost the right to rely on this route, even if the underlying conduct was serious. An extraordinary dismissal is still subject to the same three week filing deadline at the Arbeitsgericht if you intend to challenge it.

Special protection: works councils, pregnancy, parental leave and disability

Several categories of employee, and one procedural step, sit on top of everything above and can make an otherwise valid looking dismissal void.

Works council consultation. Where a Betriebsrat exists, § 102 BetrVG requires the employer to hear it before issuing any dismissal, ordinary or extraordinary. A dismissal issued without that consultation having taken place is void by operation of law, regardless of how strong the underlying reason for dismissal might otherwise have been.

Pregnancy and recent childbirth. § 17 MuSchG prohibits dismissing an employee during pregnancy and for a protected period after childbirth, generally at least four months, and after a miscarriage occurring after the twelfth week of pregnancy. The protection applies where the employer knew of the pregnancy or loss at the time of dismissal, or is told within two weeks after receiving the dismissal.

Parental leave. § 18 BEEG bars the employer from dismissing an employee during Elternzeit, with only a narrow exception that requires the state labour protection authority to declare a dismissal permissible in advance.

Severe disability. Where an employee holds severely disabled status, § 168 SGB IX requires the employer to obtain the prior consent of the Integrationsamt before the dismissal can take effect.

Works council members. § 15 KSchG makes it generally impermissible to dismiss a current works council member with ordinary notice, and even an extraordinary dismissal for cause additionally needs the works council's consent under § 103 BetrVG, or a court decision replacing that consent. This protection continues for one year after leaving office.

If any of these categories applies to you, say so as early as possible, ideally in the same conversation where you flag the three week deadline, since the employer may have skipped a required step entirely.

What to do in the first days

1. Check the form and the date. Confirm the dismissal is a signed paper letter under § 623 BGB, and note precisely when it reached you, since that date starts the three week clock under § 4 KSchG.
2. Calendar the three week deadline immediately. If you intend to dispute the dismissal at all, a Kündigungsschutzklage generally needs to be filed inside that window; waiting to see how you feel about it is the single most common way employees lose a case they otherwise had.
3. Check your notice period separately. The length of notice you are owed follows § 622 BGB and is unrelated to whether the dismissal itself was valid; see notice periods for the graduated scale by tenure.
4. Request a written Arbeitszeugnis. § 109 GewO gives every employee the right to ask for a written reference when the employment relationship ends, and asking early tends to go more smoothly than asking after a dispute has escalated.
5. Register with the Agentur für Arbeit promptly. § 38 SGB III sets the deadline to register as arbeitsuchend at three months before the employment ends. Where less than three months separate learning the end date from the end date itself, which is the usual position after a dismissal, the registration must instead happen within three days of learning it. Registering late can reduce the unemployment benefit paid. The statute also states expressly that this duty applies whether or not the dismissal is being contested in court, so challenging the dismissal does not postpone it.
6. Think about severance and settlement early, not just reinstatement. See severance pay for how a payment is typically calculated where one is agreed, and termination agreements if your employer proposes an Aufhebungsvertrag instead of a straightforward dismissal.

What a Kündigungsschutzklage realistically achieves

The formal legal claim behind a Kündigungsschutzklage asks the Arbeitsgericht to find that the dismissal did not end the employment relationship. In practice, most cases never reach a final judgment on that question. The large majority settle at or before the first hearing, typically with the employer paying the employee a negotiated sum in exchange for the employee accepting that the employment has ended.

That outcome is not a lesser result by design, it is simply the normal shape of these disputes, and it reflects the reality that neither side usually wants to force a continued working relationship after it has broken down. Reinstatement remains the formal relief the claim is built to seek, and it does happen, but a realistic starting expectation is a negotiated payment rather than a return to the same desk. See challenging a dismissal for how the three week filing process itself works step by step.

None of the above changes case by case outcomes, which depend on the specific facts, the employer's paperwork, and how the Sozialauswahl or Abmahnung history looks on the day of the hearing. For general background on how German law approaches employment and other everyday legal questions, see German law explained.

Frequently Asked Questions

What is the deadline to challenge a dismissal in Germany?

Three weeks from the day you receive the written dismissal letter, under § 4 KSchG. Miss that window and the dismissal generally stands even where it would otherwise have failed.

Does the KSchG protect me if my employer has fewer than ten staff?

It depends on when you were hired. § 23 KSchG exempts firms with five or fewer employees for staff hired on or before 31 December 2003, and extends that exemption to firms with ten or fewer employees for staff hired after that date.

Can my employer dismiss me by email or over the phone?

No. § 623 BGB requires a dismissal to be in writing with an original signature. A dismissal sent by email, text message or spoken aloud has no legal effect regardless of what it says.

What counts as a valid reason for dismissal under the KSchG?

§ 1 KSchG recognizes three grounds: personal reasons such as long term incapacity, conduct reasons that normally require a prior written warning, and operational reasons that require the employer to run a fair social selection among comparable employees.

How quickly must I register with the Agentur für Arbeit after being dismissed?

§ 38 SGB III sets the deadline at three months before the employment ends. After a dismissal there is usually less than three months between learning the end date and the end date itself, and in that case the registration must happen within three days of learning it. Registering late can reduce the benefit paid, and the duty applies even while the dismissal is being contested in court, so it is a separate deadline from the three week court deadline.

Will I get my job back if I win a Kündigungsschutzklage?

Rarely in practice. Most cases end with a negotiated settlement and a payment to the employee rather than a court order reinstating them, though reinstatement remains the formal legal outcome the claim is built around.

What is a fristlose Kündigung and how is it different?

An extraordinary dismissal without any notice period under § 626 BGB, available only for a compelling reason that makes continuing the employment unreasonable, and the employer must declare it within two weeks of learning the grounds.

Can I ask for a reference when my employment ends?

Yes. § 109 GewO gives every employee the right to request a written Arbeitszeugnis when the employment relationship ends, and asking for one early is worth doing regardless of how the dismissal itself is being handled.