Transfer of undertaking: where these cases are won or lost

A German parent company is buying the production line of a Czech supplier. The purchase agreement covers machinery, contracts and inventory, but says nothing about the fifteen people who run the line. Closing is three weeks away, and nobody has decided who signs their next payslip.

Under Czech labour law, the transfer of undertaking employment rule moves existing contracts to the acquirer automatically, by operation of law, without asking either the employees or the new employer for consent. Both employers must inform and consult employee representatives at least thirty days before the transfer date; a notice served late does not reopen contracts that have already passed.

This page sets out when the rule applies, the sequence of steps and deadlines around the transfer date, and what a file needs to contain before a foreign buyer or seller can rely on it — and where the limit of what documents alone can show begins.

What counts as a transfer of undertaking?

A transfer of undertaking is not defined by how the deal is labelled on the signing page. It turns on whether an economic unit — a business, a branch, a production line, an outsourced function — keeps its identity and continues to operate after the change of owner or operator.

Czech law looks past the transaction structure to the substance of what changed hands. A share deal, where the legal entity stays the same and only its shareholders change, does not trigger the rule — the employer never changes. An asset deal, an outsourcing of a canteen or a security service, or the insourcing of a previously outsourced task, usually does, because the employer changes even though the work continues unchanged.

The test used in practice weighs several factors together. It looks at whether tangible and intangible assets moved with the activity, whether the majority of the workforce transferred, and whether customers and suppliers stayed the same. It also asks whether the activity, before and after the change, is recognisably the same undertaking rather than something rebuilt from scratch. No single factor decides the case on its own.

A transfer that looks purely commercial on the closing memo can still be a transfer of undertaking in labour-law terms — the two classifications do not have to match.

A French investor avoided reopening severance calculations for eleven transferring employees after the seller's headcount and service-length records were reconciled two months before signing (summer 2025).

Non-compete obligations do not disappear in the process either. Where the transferring contracts include them, the acquirer inherits both the restriction and its cost, a question covered in our note on non-compete clauses.

Transfer of undertaking employment: when does the rule apply?

The rule applies once an economic unit changes hands and continues in a materially similar form — it does not require a written agreement between old and new employer, and it does not require the employees' consent. Silence in the sale contract does not switch the rule off. This is distinct from a posting of workers, where an employee is sent temporarily to work in the Czech Republic while the employer itself does not change. That situation is a secondment, not a transfer of undertaking, and it does not trigger the rules below.

Three conditions tend to decide real cases. First, continuity: the activity carried on after the change must be recognisably the same, not a new operation built with different assets. Second, identity of the unit: what transfers must be an organised whole capable of pursuing its economic activity on its own, not a loose bundle of assets. Third, timing: the transfer date is a fact, not a date chosen on paper — it is the day operational control actually passes, which can precede or follow the date written into the purchase agreement.

Where a foreign buyer treats the transfer as a pure asset sale, it may skip the notice to employee representatives. The thirty-day information and consultation period is not a formality. Once the transfer date passes without it, the omission cannot be undone retroactively, and the contracts have already moved regardless.

A buyer who treats the workforce as a line item discovers, after closing, that contracts, seniority and pending claims all crossed over regardless of what the purchase agreement said. LISTINA prepares a factual report on the transferring workforce — headcount, contract terms, pending claims and the consultation record — typically within five to eight working days, at info@listinafirm.com. Where representation before a Czech court or authority becomes necessary, it is handled by a collaborating advocate.

What is the sequence of steps and deadlines?

The sequence runs on two parallel tracks — the corporate closing and the labour-law notice — and the second does not wait for the first to be convenient.

• Before signing: identify which employees belong to the transferring unit and confirm their contract terms, seniority and any pending claims.
• At least 30 days before the transfer date: outgoing and incoming employer inform and consult the works council or trade union, or the employees directly where none exists.
• On the transfer date: employment contracts pass to the acquirer by operation of law; terms and seniority continue unchanged.
• In the following months: either employer may still terminate on ordinary grounds, but the transfer itself is not a ground for dismissal.
• Where headcount reductions follow the transfer: collective redundancy notice obligations run separately, on their own clock — see our glossary entry on collective redundancy.

A transfer date that is treated as flexible because the purchase agreement says so is still the date the labour-law clock uses. Missing the notice period before that date is not a defect a lawyer can repair afterwards — the window is spent, and no later filing restores it.

What must the file contain to decide the case?

Whether a given transaction counts as a transfer of undertaking, and what exactly transferred, is decided on documents, not on how the deal was pitched to either side. The file that answers both questions has a fixed core.

• The current organisational chart of the transferring unit and a list of employees assigned to it.
• Employment contracts, amendments and any collective agreement provisions that apply to them.
• Records of pay, seniority and outstanding claims, including untaken leave and unpaid overtime.
• The consultation record with the works council or trade union, with the date it was given.
• Evidence of what actually transferred — assets, contracts, customer relationships — beyond what the sale agreement recites.

An Austrian acquirer found that three employees listed as transferring had already been served notice by the seller before signing, once the personnel file was checked against the seller's own termination records (spring 2026).

• Asset deal with continuing operation → confirm transfer status before signing → buyer and seller jointly → before closing.
• Transfer confirmed, works council exists → run consultation → outgoing and incoming employer → at least 30 days before the transfer date.
• Transfer date passed without notice → document the omission, do not attempt to backdate it → incoming employer → immediately.
• Headcount reduction planned after transfer → open a separate collective redundancy procedure → incoming employer → per that procedure's own notice period.

Where the acquiring entity itself sits in a group headed abroad, the file also needs to show which entity within that group actually assumes the employer's obligations — an issue our overview of management structures in Germany addresses from the parent's side.

The consultation record is often the single document that decides whether a dismissal made shortly after the transfer stands or falls.

A dismissal made in the months after a transfer is challenged more often than the transfer itself — and the consultation record, not the purchase agreement, is what a court asks for first. LISTINA assembles that record and the underlying personnel file into a factual report, delivered within five to eight working days, at info@listinafirm.com. Representation in any resulting proceeding is handled by a collaborating advocate.

Act, wait, or stop — the decision point

Once the transfer status of the deal is clear and the file above is assembled, three responses cover almost every case.

Act where the transfer is confirmed and the transfer date is close: run the consultation now, on the thirty-day clock, and reconcile the personnel file before closing rather than after.

Wait where the classification is genuinely open — a mixed deal with some assets sold and some retained — and the economic-unit test has not yet been applied to the specific mix of what is transferring.

Stop where the file shows terminations, undisclosed liabilities or a consultation record that does not exist: closing on schedule converts an open question into a dispute the acquirer now owns.

An acquirer who closes without the consultation record in hand does not get a second chance at the thirty-day window. The deadline runs from the transfer date, not from when the buyer noticed it was missing. A missed window carries personal exposure for whoever signed off on closing.

What we cannot establish from documents and registers alone is whether an economic unit will in fact continue operating unchanged after the transfer. That depends on decisions the acquirer makes after closing, not on anything recorded before it. We also cannot certify, from a register search, that every employee entitled to notice actually received it; that rests on the consultation record the parties hold, not on public sources.

Frequently asked questions

When does transfer of undertaking apply?

It applies whenever an economic unit — a business, a branch, an outsourced function — changes employer and continues operating in a materially similar form, regardless of how the transaction is structured or labelled. A pure share deal, where the employer itself does not change, falls outside it.

What documents are needed?

A current list of employees assigned to the transferring unit, their contracts and pay and seniority records, the consultation record with employee representatives, and evidence of what actually transferred beyond the wording of the sale agreement.

How long does it take?

The information and consultation step has a fixed lead time of at least thirty days before the transfer date. Assembling the underlying personnel file typically takes five to eight working days once the records are made available.

What is the usual mistake?

Treating the sale contract's silence on employees as meaning nothing transfers. The rule operates regardless of what the contract says, and a missed consultation window before the transfer date cannot be repaired after it has passed.

LISTINA produces factual reports from documents and public registers. It does not provide legal advice and does not represent parties. Where a matter requires representation before a Czech court or authority, it is handled by a collaborating advocate.

Markéta Sedláčková works on regulation and personnel matters.

A foreign buyer or seller facing a transfer date within weeks does not need a legal opinion first — it needs to know exactly who transfers, on what terms, and what the consultation record already shows. LISTINA delivers that as a factual report on the transferring workforce, typically within five to eight working days, at info@listinafirm.com. Where the matter needs representation before a Czech court or authority, a collaborating advocate handles it.