How to Hire a Divestiture Consultant: Carve Out, TSA, Costs, Day 1, and RFP Guide
NMS Consulting resources
A divestiture consultant helps a company prepare and execute the sale, carve out, or separation of a business while protecting deal value, business continuity, and the remaining organization. The right advisor should help leadership define the separation perimeter, build standalone costs, plan transition service agreements, prepare Day 1, manage stranded costs, and keep the separation on a clear decision path.
What does a divestiture consultant do?
A divestiture consultant helps a seller plan and manage the separation of a business, asset group, subsidiary, product line, or operating unit from the parent company. The work can start before a buyer is selected and continue through signing, close, transition service exit, stranded cost removal, and stabilization of the remaining company.
Typical responsibilities include defining the separation perimeter, identifying shared services and dependencies, preparing standalone cost estimates, coordinating functional separation plans, supporting transition service agreements, building Day 1 readiness, tracking separation costs, and helping leadership redesign the remaining organization.
Deloitte’s 2026 Global Divestiture Survey describes divestitures as increasingly strategic portfolio moves and identifies preparation quality, separation readiness, data quality, regulatory planning, TSA complexity, and stranded costs as important drivers of value and execution. Read Deloitte’s 2026 Global Divestiture Survey.
This article is a management resource, not legal, tax, accounting, securities, employment, or regulatory advice. Transaction counsel, tax advisors, accountants, and other qualified specialists should determine the requirements that apply to a specific transaction.
When should a company hire a divestiture consultant?
Outside support is most useful when the separation creates more complexity, workload, or execution risk than the internal team can manage without distracting from normal operations.
| Situation | Why it is difficult | Consulting support |
|---|---|---|
| First major divestiture | The company lacks a repeatable separation process and experienced internal leaders. | Separation strategy, governance, templates, functional planning, and capability transfer. |
| Complex carve out | The divested business shares systems, people, facilities, contracts, suppliers, data, or services with the parent. | Dependency mapping, separation perimeter, TSA planning, Day 1 readiness, and exit roadmap. |
| Aggressive close timeline | Signing and closing create a compressed window for legal, operational, technology, finance, and people separation. | Critical path, decision calendar, separation management office, workstream coordination, and escalation. |
| Buyer requires standalone clarity | The buyer needs confidence in the business’s future cost base, systems, capabilities, and operating model. | Standalone cost model, operating model, separation assumptions, and diligence support. |
| Large TSA requirement | The business cannot operate independently at close without temporary support from the seller. | TSA service catalog, pricing logic, service levels, exit milestones, governance, and dependency management. |
| High stranded cost risk | Seller costs do not automatically disappear when revenue and people move to the buyer. | Stranded cost baseline, removal initiatives, owners, timing, and RemainCo redesign. |
| Management capacity constraints | Executives must run the company while preparing a transaction and separation. | Dedicated separation leadership, project management, executive reporting, and issue resolution. |
| Post close separation problems | TSA exits are slipping, stranded costs remain, or buyer and seller responsibilities are unclear. | Rapid diagnostic, recovery plan, governance reset, TSA exit plan, and cost actions. |
For an overview of NMS support in this area, see divestiture and carve out consulting and mergers and acquisitions consulting.
Divestiture consulting services and deliverables
A divestiture consultant can support the entire separation or a defined part of it. Buyers should be clear about which decisions and outputs the advisor owns before agreeing the scope.
| Service | Typical deliverables | Decision supported |
|---|---|---|
| Separation strategy | Separation principles, perimeter, transaction assumptions, priorities, and critical decisions. | What is being separated and what must remain connected temporarily? |
| Separation management office | Governance, workstreams, cadence, dashboard, issue log, decision log, and executive reporting. | How will the separation be managed as one program? |
| Dependency mapping | Inventory of shared people, systems, data, contracts, suppliers, facilities, processes, and services. | Which dependencies must be separated, replaced, or covered by a TSA? |
| Standalone cost analysis | Future organization, service requirements, technology costs, external spend, and standalone cost model. | What will it cost the separated business to operate independently? |
| Stranded cost planning | RemainCo cost baseline, stranded cost register, removal initiatives, owners, and timing. | Which seller costs remain after the divestiture and how will they be removed? |
| TSA planning | Service catalog, service levels, pricing basis, duration, exit criteria, governance, and transition milestones. | Which temporary services are required after close and how will they end? |
| Day 1 readiness | Critical readiness checklist, cutover plan, communications, access, controls, financial processes, and escalation. | Can both businesses operate safely and legally on the first day after close? |
| Functional separation | Detailed plans for finance, HR, IT, operations, procurement, sales, marketing, legal, tax, and other functions. | What must each function complete before close and after close? |
| RemainCo redesign | Operating model, organization, service model, cost actions, and governance for the remaining company. | How should the seller operate after the business leaves? |
| TSA exit and closeout | Exit plan, milestones, dependency closure, cost tracking, residual issues, and ownership handoff. | When can temporary services and separation governance end? |
McKinsey argues that carve outs can create value for both the separated business and the remaining company when leaders examine support costs, talent, and the operating model in detail rather than assuming the separated business must simply recreate the parent’s structure. Read McKinsey’s carve out analysis.
Divestiture readiness before the business goes to market
Preparation should begin before the sale process creates a deadline. A seller that understands the separation before buyers start diligence can answer questions faster, reduce uncertainty, and make the business easier to evaluate.
| Readiness area | Question | Evidence of readiness |
|---|---|---|
| Separation perimeter | Which legal entities, employees, assets, contracts, data, customers, suppliers, and systems are in scope? | Documented perimeter with open decisions and exceptions. |
| Standalone financials | Can the business’s revenue, cost, working capital, and future standalone cost base be explained? | Traceable financial model with assumptions and reconciliations. |
| Shared services | Which services are currently provided by the parent or shared across businesses? | Service inventory with owner, cost, recipient, replacement plan, and TSA need. |
| Technology | Which applications, infrastructure, data, licenses, interfaces, and security controls are shared? | Technology separation map and Day 1 access plan. |
| People | Which employees move, remain, support both sides, or require replacement? | People perimeter, critical roles, transition plan, and retention risks. |
| Contracts | Which customer, supplier, property, license, and service agreements require assignment, consent, duplication, or replacement? | Contract inventory with action and owner. |
| TSA need | Which capabilities cannot be separated by close? | Draft TSA service catalog with duration and exit path. |
| RemainCo impact | Which seller costs, processes, teams, and systems become oversized after the transaction? | Stranded cost and operating model action plan. |
Deloitte’s 2026 survey says preparation quality remains one of the largest drivers of divestiture value and influences proceeds, time to close, buyer engagement, and cost to achieve. The same survey highlights data quality, separation readiness, regulatory planning, and leadership alignment as recurring execution gaps. See Deloitte’s global survey.
Standalone costs and stranded costs are different problems
Standalone cost is the cost required for the divested business to operate independently. Stranded cost is the cost that remains with the seller after the divested business leaves. A good separation plan models both.
| Cost type | Meaning | Example |
|---|---|---|
| Standalone cost | Future cost required for the separated business to operate on its own or under the buyer. | A business that relied on the parent’s finance team may need its own controller, systems, audit support, treasury process, and external services. |
| Stranded cost | Seller cost that remains after the associated business, revenue, activity, or headcount transfers out. | A corporate software contract, office lease, management layer, or shared function may not shrink automatically when the divested business leaves. |
| Cost to separate | One time cost required to execute the carve out and establish the future state. | Systems migration, data separation, advisory fees, contract changes, employee transition, duplicate environments, and temporary resources. |
| TSA cost | Temporary cost for services provided between seller and buyer after close. | The seller continues payroll, IT infrastructure, finance processing, or other services until the buyer can replace them. |
EY’s September 2026 analysis says buyers expect a credible standalone cost view and recommends using verifiable financial data, operating model assumptions, and benchmarks to support the cost case. Read EY on standalone cost analysis.
Do not treat stranded cost as a finance only exercise. Removing it may require changes to organization layers, systems, facilities, vendor contracts, management spans, shared services, and the RemainCo operating model.
Transition service agreements should have an exit plan before they begin
A transition service agreement, or TSA, allows the seller or buyer to provide temporary services after close while the separated business builds or migrates the capability it needs. TSAs can accelerate closing, but poorly designed TSAs can create cost, dependency, disputes, and delayed separation.
| TSA element | Question to resolve |
|---|---|
| Service definition | Exactly what service is being provided, to whom, and through which people, systems, data, or vendors? |
| Service level | What level of performance, timing, volume, availability, or support is required? |
| Pricing | How is the service priced and which pass through costs, taxes, or third party charges apply? |
| Duration | What is the target end date and what conditions could justify an extension? |
| Exit dependency | What capability, system, contract, data migration, or team must be ready before the service can end? |
| Governance | Who reviews performance, resolves disputes, approves changes, and escalates unresolved issues? |
| Security and access | What access, data handling, privacy, cybersecurity, and control requirements apply during the transition? |
| Exit test | What evidence proves the recipient can operate without the TSA? |
Deloitte’s 2026 survey notes that TSAs can help accelerate closing but can introduce complexity later, especially if exit planning and stranded cost removal are not managed early. See Deloitte’s findings.
A good consultant should therefore manage TSAs backward from exit. The question is not only “What services do we need at Day 1?” It is also “What must be built, migrated, contracted, or staffed so this service can end?”
Day 1 separation readiness
Day 1 should protect continuity while establishing the new operating reality. It is not the date when every dependency must disappear. It is the date when both sides must know what has changed, what remains temporary, who owns each issue, and how the business will operate safely after close.
| Area | Day 1 question |
|---|---|
| Leadership | Are leaders, decision rights, reporting lines, and escalation routes clear? |
| Employees | Do employees know their employer, manager, location, pay process, benefits process, access, and immediate priorities? |
| Customers | Can orders, service, billing, support, commitments, and communications continue without disruption? |
| Suppliers | Are purchasing, contracts, ordering, payment, inventory, and critical supplier relationships ready? |
| Finance | Can the business transact, invoice, pay, report, control cash, and meet required close processes? |
| Technology | Do users have approved access, connectivity, devices, applications, data, security controls, and support? |
| TSA services | Are all required temporary services active, owned, measured, and governed? |
| Issues | Is there one process for recording, prioritizing, escalating, and resolving Day 1 problems? |
EY notes that tax accounting and separation decisions can directly affect valuation, deal economics, and the Day 1 tax profile, which is one reason tax specialists should be involved early rather than added after the separation design is fixed. Read EY on early tax input in carve outs.
Separation governance and the separation management office
A separation management office, sometimes called an SMO, creates one management system across the transaction and functional workstreams. The goal is not more reporting. The goal is faster decisions, clearer ownership, and fewer missed dependencies.
| Responsibility | What it should produce |
|---|---|
| Master plan | One integrated plan covering close, Day 1, TSAs, functional milestones, dependencies, and post close separation. |
| Decision management | Decision log with owner, due date, options, implications, and escalation route. |
| Dependency management | Cross functional dependency register showing which workstream is waiting on another. |
| Issue and risk management | Prioritized issues and risks with mitigation, owner, due date, and executive escalation. |
| TSA management | Service readiness, performance, exit milestones, dependencies, changes, and disputes. |
| Cost management | Separation cost, standalone cost, stranded cost, and TSA cost views with owners and forecast updates. |
| Executive reporting | Concise view of readiness, value, unresolved decisions, cost, timing, and critical risks. |
| Closeout | Residual actions, long term owners, TSA exits, cost actions, lessons learned, and closure recommendation. |
The separation office should not become a substitute for business ownership. Functional leaders still need to make the decisions and own the future state. The SMO makes those decisions visible, coordinated, and timely.
How divestiture consultants charge
Divestiture consulting can be priced several ways. The commercial model should match the uncertainty of the separation and the amount of responsibility the advisor is expected to carry.
| Fee model | Useful when | What to define |
|---|---|---|
| Fixed fee | The workstreams, outputs, timeline, and assumptions are reasonably clear. | Deliverables, staffing, assumptions, review rounds, expenses, dependencies, and change process. |
| Time and materials | The transaction timetable, buyer requirements, or separation scope may change. | Rates by role, staffing plan, budget cap, forecast cadence, and approval for additional spend. |
| Monthly retainer | The seller needs an ongoing separation lead or advisory team through signing, close, and transition. | Included capacity, roles, meeting cadence, deliverables, exclusions, and overage treatment. |
| Phase based fee | The engagement has clear stages such as readiness, transaction support, Day 1, and TSA exit. | Outputs and acceptance criteria for each phase, plus approval before the next phase. |
| Hybrid model | A defined core program requires flexible specialist support around tax, technology, finance, operations, or people. | Which work is fixed, which work is variable, and how specialist resources are approved. |
Compare proposals on more than the headline fee. Look at the seniority of the proposed team, the number of workstreams included, who will run the separation office, how often senior advisors will be available, how buyer requests are handled, and what happens if the close date changes.
For broader commercial structures, see NMS Consulting’s consulting fees and pricing guide.
Divestiture consultant selection scorecard
A scorecard helps the seller compare firms before presentations, references, and fee negotiations create bias toward the most polished proposal.
| Criterion | Example weight | What good evidence looks like |
|---|---|---|
| Relevant divestiture experience | 20% | Comparable carve outs, business size, geography, industry, transaction structure, and separation complexity. |
| Proposed team | 20% | Named senior leaders, realistic availability, clear roles, and evidence that the people presented will perform the work. |
| Separation approach | 15% | Clear method for perimeter, dependencies, Day 1, TSAs, functional plans, and RemainCo impact. |
| Standalone and stranded cost capability | 15% | Ability to build traceable cost baselines, future state assumptions, cost actions, and owner based tracking. |
| TSA and Day 1 capability | 10% | Experience designing services, governance, exit plans, readiness checks, and cutover management. |
| Program management | 10% | Strong separation office, dependency management, issue escalation, decision support, and executive reporting. |
| Commercial fit | 5% | Transparent fees, assumptions, staffing, expenses, and scope change rules. |
| Capability transfer | 5% | Clear handoff of tools, documentation, open actions, and ownership to the seller and separated business. |
For a broader procurement template, see the NMS consulting RFP scorecard.
RFP and interview questions for divestiture consultants
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Which divestitures have you led that are most similar to ours in size, industry, geography, transaction structure, and separation complexity?
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Who will lead our separation day to day, and how much of that person’s time is committed?
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How will you define the separation perimeter and identify shared dependencies?
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How do you build a credible standalone cost model?
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How do you identify stranded costs and turn them into owner based removal actions?
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How do you decide which services need a TSA and which should be separated before close?
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How do you make sure every TSA has a realistic exit path?
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How would you structure the separation management office and executive governance?
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How do you manage new buyer requests after signing without losing control of scope and cost?
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What should be complete by Day 1 and what should intentionally remain transitional?
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How will you measure if the separation is succeeding beyond closing the transaction?
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How will you transfer the process, tools, and remaining actions to our internal teams?
Ask for examples that show the decision, complication, tradeoff, and result. A generic separation methodology is less useful than evidence that the advisor has managed the kinds of dependencies your transaction actually contains.
Example 90 day divestiture consulting roadmap
The timing of a real separation depends on deal stage, regulatory approvals, buyer requirements, and transaction complexity. The example below fits an early separation readiness engagement before a target close date is fixed.
| Period | Focus | Expected outputs |
|---|---|---|
| Days 1 to 15 | Confirm transaction assumptions and separation perimeter. | Perimeter, deal assumptions, governance, workstreams, information needs, and priority decisions. |
| Days 16 to 30 | Map dependencies. | Shared service inventory, system map, contract dependencies, people dependencies, facility dependencies, and TSA candidates. |
| Days 31 to 45 | Build the cost view. | Standalone cost assumptions, separation cost estimate, stranded cost baseline, RemainCo impacts, and financial risks. |
| Days 46 to 60 | Design Day 1 and TSAs. | Day 1 requirements, TSA catalog, service owners, exit dependencies, technology cutover needs, and critical risks. |
| Days 61 to 75 | Build functional separation plans. | Function plans, milestones, dependencies, buyer asks, decisions, and executive escalations. |
| Days 76 to 90 | Prepare execution governance. | Integrated separation plan, readiness dashboard, cost tracker, decision log, risk register, TSA exit roadmap, and management handoff. |
The goal of the first 90 days is not to finish the separation. It is to replace uncertainty with an executable plan, clear ownership, and a reliable view of the costs and dependencies that can affect value.
KPIs for divestiture and carve out execution
Closing the transaction is one milestone. A seller also needs measures that show if separation risk, TSA dependency, cost, and business continuity are under control.
| KPI | Definition | Question it answers |
|---|---|---|
| Day 1 critical readiness | Critical Day 1 requirements completed and approved divided by all critical requirements due. | Can both businesses operate safely at close? |
| Separation milestone delivery | Priority milestones completed on or before their agreed dates divided by priority milestones due. | Is the separation executing to plan? |
| Decision age | Days that material separation decisions remain open after their required decision date. | Where is indecision creating risk or delay? |
| TSA readiness | TSA services with approved scope, owner, service level, price, start condition, and exit plan divided by all TSA services required for close. | Are temporary services ready and governable? |
| TSA exit progress | TSA services exited on or before the agreed date divided by TSA services scheduled to exit in the period. | Is the business reducing post close dependency? |
| Standalone cost variance | Current expected standalone cost compared with the approved baseline. | Is the separated business’s future cost base changing? |
| Stranded cost removal | Verified stranded cost removed compared with the approved removal plan. | Is RemainCo capturing the expected cost reset? |
| Separation cost variance | Actual and forecast one time separation cost compared with the approved budget. | Is the transaction being separated within the expected investment? |
| Critical business continuity incidents | Number and severity of customer, employee, supplier, finance, technology, or operational incidents attributable to the separation. | Is the separation disrupting the business? |
Deloitte’s 2026 survey notes that many sellers continue to face post close pressure from stranded costs, TSA complexity, financial reporting, and operational redesign. That makes these measures important beyond legal close. Read Deloitte’s findings.
Red flags when hiring a divestiture consultant
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The proposal starts with a generic project plan before defining the separation perimeter. A plan cannot be reliable if the team does not know what is actually moving and what remains shared.
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The advisor treats standalone cost and stranded cost as the same number. They affect different parties and require different actions.
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TSAs are designed without exit milestones. A temporary service without a replacement path can become an expensive long term dependency.
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The senior team appears only during the sales process. Confirm who will lead the work after the engagement starts.
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The consultant ignores RemainCo. A divestiture can leave the seller with excess cost, duplicated processes, oversized systems, and an operating model that no longer fits.
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The Day 1 plan is only a checklist. Critical items should have owners, dependencies, completion evidence, escalation routes, and contingency plans.
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The fee proposal is difficult to connect to people and outputs. Ask how staffing, buyer requests, close date changes, and scope changes affect fees.
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There is no capability transfer plan. Internal teams must own the remaining actions, TSA exits, and cost changes after the advisor leaves.
Common questions about divestiture consultants
What is a divestiture consultant?
A divestiture consultant is an advisor who helps a company prepare and execute the sale or separation of a business. Work may include carve out planning, standalone costs, stranded costs, TSAs, Day 1 readiness, functional separation, governance, RemainCo redesign, and post close separation.
When should a divestiture consultant be hired?
Ideally, support begins early enough to define the separation before the transaction timetable becomes critical. Early work can improve standalone clarity, identify dependencies, estimate costs, prepare buyer information, and reduce surprises during diligence and signing.
What is the difference between a divestiture and a carve out?
Divestiture is a broad term for disposing of or separating a business or asset. A carve out usually refers to separating a business from a larger parent where operations, systems, people, contracts, or services may be shared. The exact transaction structure can vary.
What does a divestiture consultant do with TSAs?
A consultant can help identify which temporary services are required, define the service catalog, coordinate service levels and operating assumptions, build governance, map exit dependencies, and track the plan for replacing or ending each service.
How are stranded costs different from standalone costs?
Standalone costs belong to the future separated business and represent what it needs to operate independently. Stranded costs remain with the seller after the divested business leaves and may require separate cost removal or operating model actions.
How much does divestiture consulting cost?
Fees vary with deal size, transaction stage, number of functions, separation complexity, timeline, seniority, technology needs, and how much execution the advisor owns. Common fee models include fixed fee, time and materials, retainers, phase based fees, and hybrids.
What should be included in a divestiture consulting RFP?
Include the transaction objective, business perimeter, deal stage, expected timing, known shared services, internal team, required workstreams, expected consultant role, deliverables, staffing expectations, data access, fee format, and selection criteria.
Sources
The external sources below support the divestiture strategy, preparation, standalone cost, TSA, carve out, and value protection principles used in this article. The scorecards, KPI definitions, RFP questions, and 90 day roadmap are NMS Consulting’s suggested management tools and should be adapted to the transaction.
- Deloitte: 2026 Global Divestiture Survey. Divestiture strategy, preparation quality, separation readiness, TSAs, stranded costs, and post close value.
- Deloitte: Five moves to reshape long term value in divestiture strategy. 2026 global findings on portfolio strategy, preparation, execution, Day 1, and value realization.
- EY: Enhance seller value through standalone cost analysis. Standalone cost, operating model assumptions, verifiable financial data, and buyer confidence.
- EY: How early tax input improves outcomes in carve outs. Separation complexity, tax accounting, valuation, deal economics, and Day 1 considerations.
- McKinsey: How carve outs can unleash value. Support costs, talent, business continuity, and value creation for the separated and remaining businesses.
