Your Divestiture Has a Day 1. The People Separation Has to Be Ready by Then.

The two run in reverse. Integration absorbs another company, merging its people, processes and tools with yours. A carve-out removes one business from a wider group, either to operate independently or to pass to a new owner. The hard work is unpicking everything that used to be shared: people employed by group companies, payroll run centrally, benefits bought at group level and HR data held in group systems. Some obligations stay with the seller for a while too: in Germany, the former employer remains jointly liable for obligations that arose before the transfer and fall due within a year of it.

It is the moment the separated business has to function as an employer on its own or within the buyer. Every in-scope employee should sit with the right employer, payroll and social security should be registered and tested for that employer, benefits and insurance should continue without a gap, and HR data and system access should be split. Anything that cannot stand alone by then needs a TSA with an agreed end date.

The deal structure decides it. In a business transfer or hive-down, EU transfer rules move employment to the new employer automatically, on existing terms. In a share sale, the employer does not change, so there is no transfer at all. Countries differ in the detail: in France the transfer applies automatically and binds both the new employer and the employee, who cannot refuse it, while in Germany employees may object in writing within one month of receiving a complete information letter. And where staff are employed by a group service company but permanently assigned to the business being sold, the EU Court of Justice has held that they can still be caught by the transfer.

Under EU rules, both seller and buyer must inform their employee representatives of the date, reasons, implications and planned measures in good time, and consult them on any measures envisaged. Where there are no representatives, employees must be told directly. National rules add timing: in France the works council must be consulted before the seller signs a binding commitment, which is why French sales are often structured around a put option; in Germany each affected employee must receive an individual information letter in text form before the transfer; and in the Netherlands the works council must be asked for advice on a transfer of control, share sales included, while its advice can still influence the decision.

Salaries and contractual benefits move with the employees. Supplementary company pension rights are different: EU transfer rules exclude them from the automatic transfer unless a country decides otherwise, although every country must protect the rights employees have already built up. Where insurance policies and benefits are held by the parent group, they may need to be replaced for the new employer, so the plan has to make sure cover continues from Day 1.

A transitional services agreement is a contract under which the seller keeps providing certain services, often payroll, HR systems or benefits administration, for a limited time after close. If the seller processes the separated business’s employee data under a TSA, data protection law generally requires written processing terms. The important part is the exit: each service needs an end date and a plan for the new employer to take it over.

By treating the new employer’s payroll as a registration project with a hard deadline. The new entity needs its payroll and social security registrations in place, a provider set up and data migrated, and a parallel or test run before the first real payment. Where that cannot be ready in time, a TSA can keep the seller’s payroll running for a defined period.

Only the data needed for the transferring employees should move, and it needs a lawful basis to do so. Records for people who stay with the seller must stay behind, access to shared systems has to be split, and if the seller keeps running systems for the buyer after close, that arrangement needs data processing terms. We build the data map jointly with your privacy and HRIS leads before a single record moves.

Yes. One team plans every country against the same Day 1 date, with independent specialists handling each country’s transfer rules, representative steps and registrations. Where a country requires consultation before signing, as France does, that step has to be built into the timetable first.