CHRO carve-out playbook: build a standalone HR function

A practical guide with eight chapters, three phase-end checklists, a country compliance matrix, and a 100-day CHRO plan. Written from 25 years of HR and payroll delivery across European separations.

HR due diligence checklist: what to audit before the deal closes
TSA negotiation guide: the six red flags to watch for
Works council and TUPE requirements by country
The operating model decision: honest tradeoffs of each option
The CHRO 100-day plan from day one to stable operations

Eight chapters covering every phase of a corporate separation

The carve-out HR problem

Why HR is always the last priority and the first casualty – and the three structural failures that appear in almost every separation.

Before the deal closes

HR due diligence, TSA negotiation, and the day-one operating model decisions that determine whether the separation succeeds.

Day-one readiness

The five non-negotiables, TUPE and the EU Acquired Rights Directive, works council obligations, and the 90-day stabilisation plan.

Building standalone capability

The operating model decision: build in-house, traditional outsourcing, or HR as a Service. The honest tradeoffs of each.

Multi-country compliance

Country-by-country requirements across Germany, UK, France, Netherlands, Sweden and more – and why multi-country separations cannot be managed centrally.

HR as a Service in a carve-out

How HRaaS addresses the structural problems that build-in-house and traditional outsourcing cannot – and what the three phases of a managed carve-out engagement look like.

The CHRO personal agenda

What the CHRO must personally own, what can be delegated, the three most common personal failure modes, and the 100-day plan.

Working with Zalaris

How a carve-out HRaaS engagement begins – from rapid scoping to day-one delivery and long-term managed operations.

In every carve-out, the deal team focuses on the business case, the legal structure, and the financial model. HR infrastructure is assumed to follow. It rarely does on time, at the right cost, or without compliance risk.

-- Shiju Soman , Vice President, HR Services & Transformation, Zalaris

Five questions that come up consistently when HR leaders begin planning a carve-out, spin-off or divestiture.

On the date of legal separation, the parent's HR systems and payroll engine no longer cover the carved-out entity. Three options exist: extend the TSA, build standalone capability before close, or engage a managed HR and payroll provider who can operate from day one. TSA extensions are expensive and erode leverage. Building standalone payroll typically takes six to 18 months. Engaging an HRaaS provider early is the fastest path to day-one readiness, but the engagement needs to be scoped before close.

HR needs to negotiate five things: the service scope (specifying exactly which cycles, countries and employee populations are covered); SLAs with defined accuracy thresholds; exit criteria tied to operational milestones rather than calendar dates; a knowledge transfer obligation; and extension provisions at a pre-agreed price. The absence of exit criteria is the single most common TSA failure -- without them the end date becomes subject to dispute and the parent holds the leverage.

TUPE and its EU Acquired Rights Directive equivalents apply automatically in European carve-outs. Employees transfer with existing terms unchanged. Works council requirements vary by country: in Germany, the Betriebsrat can seek an injunction to block the transfer if consultation is inadequate; in France, the CSE must be consulted before the decision is made, not just before implementation. That sequencing is a legal requirement. Getting it wrong exposes the separation to challenge.

Building in-house offers control but not speed. Recruiting an HR operations team takes three to six months; implementing an HRIS takes six to 18 months. HRaaS can be operational from the date of legal separation, covers HR administration, payroll and compliance as one integrated service, and scales as the organisation grows. Innomotics used Zalaris HRaaS to operate HR and payroll for more than 15,000 employees across 40 countries following its separation from Siemens, with no missed payroll cycles from day one.

The employees most likely to leave are disproportionately the high performers -- people with external options who built their identity around the parent brand. Retention conversations need to start before the announcement. Once the separation is public, the organisation is already competing with the external market. Retention bonuses matter, but giving senior HR leaders genuine ownership of something consequential in the new entity often retains strong people more effectively than a financial arrangement alone.