Probezeit in Berlin: The Two-Week Notice, the Ten-Employee Line, and Where the Fight Actually Happens

The Official Rule

Almost every German employment contract includes a Probezeit, and what it actually changes matters more than the label suggests. Under Section 622(3) BGB, an agreed probation period can run up to six months, not longer, and during it either side can end the contract with two weeks’ notice, no justification required. That two-week window runs strictly day to day, so a termination letter can land on essentially any calendar day, unlike the fixed mid-month or end-of-month dates that apply once probation ends.

What matters far more than the Probezeit label itself is a separate legal switch: the Kündigungsschutzgesetz (KSchG), Germany’s actual dismissal protection law. Two conditions both have to hold before it covers you at all. First, six months of continuous employment at the same employer. Second, Section 23 KSchG requires that employer to regularly employ more than 10 people, counting part-time staff at a reduced 0.5 or 0.75 weight and excluding apprentices from the headcount entirely. Miss either condition and the detailed, socially-reasoned protections most people associate with German labor law simply don’t apply, not during probation, and at a genuinely small employer, not afterward either.

One protection cuts straight through every row of that table. Section 17 MuSchG bars dismissal outright from the start of a pregnancy through four months after giving birth, overriding the simplified two-week Probezeit dismissal and the Kleinbetrieb exemption alike. A dismissal in that window is only even theoretically possible with a state labor authority’s explicit prior approval, a bar that’s rarely cleared.

Berlin’s Own Employer Landscape: Why the Ten-Employee Line Actually Bites Here

None of the mechanics above are Berlin-specific, they’re federal law and apply the same way in Flensburg or Freiburg. What genuinely differs in Berlin is how often that 10-employee line actually comes up, because an unusually large share of the city’s employers sit right around it.

Berlin’s own Startup Ecosystem Report, published by the Senate, counts more than 1,600 venture-backed startups in the city, a new one founded roughly every 14 hours, with the ecosystem valued at 169 billion euros, about 43 percent of Germany’s entire startup ecosystem value. That density concentrates most visibly in Mitte, Prenzlauer Berg and Kreuzberg. A meaningful share of these companies, especially anything under about 20 people, are exactly the kind of employer where the Kleinbetriebsklausel isn’t a theoretical edge case, it’s the actual rule governing a new hire’s dismissal protection from day one through however long they stay.

This is exactly the population for whom “wait until KSchG kicks in” is misleading advice. At a Kleinbetrieb, KSchG protection never kicks in regardless of tenure, and Berlin has a genuinely outsized share of employers in that category compared to a city built around large, established corporate employers.

Photo by Jan van der Wolf on Pexels

Even Without KSchG, the Three-Week Clock Still Runs

This is the detail that catches even people who’ve correctly understood everything above. Section 4 KSchG requires anyone who wants to argue a dismissal is invalid to file suit at the Arbeitsgericht within three weeks of receiving the written notice, and its wording covers two separate grounds at once: that the dismissal is “sozial ungerechtfertigt” (socially unjustified, the standard KSchG test) “oder aus anderen Gründen rechtsunwirksam ist” (or invalid for other reasons). That second clause matters enormously in exactly the Probezeit and Kleinbetrieb situations this page covers, where the first clause simply doesn’t apply.

“Other reasons” reaches genuinely common scenarios: a dismissal motivated by discrimination under the Allgemeines Gleichbehandlungsgesetz (nationality, religion, disability, age, and more), a dismissal that violates general good faith (Treu und Glauben), or retaliation for raising a legitimate complaint (Maßregelungsverbot under Section 612a BGB). None of these require six months of tenure or a large employer to invoke. What they do require is filing within the same three-week window that applies to a standard KSchG claim. Miss it, and Section 7 KSchG deems the dismissal effective from the start, regardless of how strong the underlying claim actually was. This is precisely the trap that catches people who’ve correctly concluded “KSchG doesn’t protect me here” and wrongly conclude from that, “so there’s no point suing at all.”

If You Actually Need to Sue: Arbeitsgericht Berlin

Berlin’s own venue for this fight is sized to match its caseload. According to Wikipedia’s sourced overview, the Arbeitsgericht Berlin runs 49 Kammern (chambers) staffed by 41 professional judges, making it Germany’s largest labor court, based at Magdeburger Platz 1, 10785 Berlin. Dismissal disputes (Kündigungsschutzklagen) make up a large share of what the court actually handles: a Berlin labor law practice puts the volume at roughly 8,000 filings a year, with about 90 percent resolved through a settlement (Vergleich) at the first hearing (Gütetermin) and roughly 6,000 of those cases closed within three months.

You don’t need a lawyer to start a case there. The court’s Rechtsantragstelle, its legal filing office, sits in rooms 129 to 141 on the first floor, with sign-in in front of room 136, open Monday to Friday 08:30 to 13:00 and with an additional evening slot on Thursdays from 15:45 to 17:15 for people who work daytime hours. Staff there will record your claim in writing based on what you tell them, but they’re explicitly barred from giving legal advice on whether you have a case, which is exactly the gap Berlin’s free advice centers exist to fill first.

What Real People Say

The Berlin Life, a Berlin-based expat blog, is blunt about the financial side of a Probezeit dismissal: newcomers generally don’t qualify for German unemployment benefits right away, so the practical advice is to budget six to twelve months of savings before relocating rather than assuming a new job is guaranteed to last past the two-week notice window. The same source describes sudden terminations with no prior feedback as common enough to be its own warning sign, and recommends asking directly for a read on your performance rather than waiting to find out from a termination letter, plus consulting a lawyer within three weeks if you think the dismissal was wrongful, which lines up exactly with the Section 4 KSchG deadline covered above.

That advice lands differently at a five-person Berlin startup than at a large, HR-staffed employer. A small founding team juggling payroll themselves is less likely to have a formal documented performance-review process running quietly in the background the way a bigger company’s legal team typically insists on, which means the surprise factor newcomers describe, a short letter with no real explanation, shows up more often at exactly the kind of employer Berlin has in unusually large numbers.

Step by Step

1. Check your contract for the actual Probezeit length and start date. Anything past six months isn’t enforceable as a probation period, and the two-week notice rule only runs for as long as the agreed period actually lasts.
2. Find out roughly how many people your employer regularly employs, not your job title or how permanent the role was pitched as. That headcount, weighed against the 10-employee Kleinbetrieb line, decides whether KSchG protection will ever apply to you there, during probation or after.
3. If you’re dismissed and think it wasn’t about performance at all, discrimination, retaliation for a complaint, bad faith, note the date you received the written notice immediately. The three-week deadline under Section 4 KSchG to sue runs regardless of whether ordinary KSchG protection applies to you.
4. Get free advice before that deadline closes, not after. BEMA, Faire Mobilität, or DGB Rechtsschutz (if you belong to a union) can tell you quickly whether a claim is worth filing.
5. If you do need to file, the Arbeitsgericht Berlin’s Rechtsantragstelle at Magdeburger Platz 1 will record your claim without a lawyer, Monday to Friday mornings, with a Thursday evening slot, though it won’t advise you on the merits.
6. If you become pregnant during Probezeit, tell your employer and lean on Section 17 MuSchG specifically. It overrides the simplified dismissal rule and the Kleinbetrieb exemption alike, regardless of your tenure.
7. Mark the six-month date on your own calendar. Neither the standard four-week notice period nor KSchG protection, where it applies at all, announces itself, it simply becomes true from that date forward.

Compliance Note

This page explains the general framework around German probation periods and dismissal protection under the BGB, KSchG and MuSchG, and how Berlin’s own employer landscape and court system fit into it, but this is not legal advice, and specific circumstances, your contract’s wording, your employer’s actual headcount, can change the outcome. For your specific situation, confirm current details with a free counseling center such as BEMA, a labor law advisor (Fachanwalt für Arbeitsrecht), or the Arbeitsgericht Berlin directly.