Core Components of TSA Planning
A TSA plan should provide enough detail for operational teams to understand their responsibilities before the transaction closes. The planning process typically begins with a comprehensive inventory of shared services and dependencies.
- Service scope: Identify finance, technology, HR, procurement, tax, legal, facilities, data, and other services required during transition.
- Service ownership: Assign providers, receiving teams, accountable owners, escalation contacts, and decision rights.
- Service levels: Establish performance expectations, reporting requirements, response times, and key service measures.
- Commercial structure: Define pricing, allocation methods, billing arrangements, assumptions, and financial reconciliation procedures.
- Transition milestones: Establish preparation, activation, stabilization, independence, and TSA exit dates.
A strong Planning System can support this structure by organizing assumptions, activities, dependencies, owners, timelines, and performance information in a consistent planning environment. This gives stakeholders a common reference point throughout the transition.
How TSA Planning Works
TSA Planning generally starts with current-state assessment. Teams identify which processes, systems, people, data, vendors, and controls are shared between the seller and the business being separated. These dependencies are then mapped against the future operating model to determine which services require temporary support.
The next step is to define each TSA service in operational terms. A service description should specify its scope, provider, recipient, frequency, service level, inputs, outputs, technology dependencies, pricing basis, and expected end state. This information becomes the foundation for the TSA agreement and subsequent execution.
Planning should also account for sequencing. Some services can transition independently, while others depend on system migration, data availability, new personnel, vendor onboarding, or process testing. Mapping these relationships helps establish realistic milestones and prevents one transition activity from being planned without considering its downstream requirements.
Finance and Procurement Considerations
Finance-related TSA Planning often covers accounts payable, accounts receivable, general ledger activities, financial reporting, treasury support, tax processes, budgeting, and management reporting. The plan should distinguish between services that remain with the seller and capabilities that the buyer must establish before independence.
Procurement planning requires similar precision. Requisitions, approvals, supplier onboarding, spend controls, and a purchase order may depend on shared procurement systems or policies during the transition. The TSA plan should identify who owns each activity and how procurement transactions will be authorized, recorded, and monitored.
sourcing arrangements should also be considered where supplier relationships, contracts, procurement controls, or purchasing decisions are shared. Clear planning helps establish which supplier activities remain within the TSA and which must move to the receiving organization.
For accounts payable, AP Automation Software can support invoice processing and payment planning as part of a finance operating model, helping teams structure faster, accurate, and controlled AP workflows when preparing the future-state capability.
Technology and ERP Dependencies
Technology planning is often central to a TSA because the transitioning business may initially rely on the seller's ERP, finance applications, reporting tools, identity systems, or shared databases. The plan should document system ownership, interfaces, data dependencies, access requirements, migration activities, testing, and cutover arrangements.
Organizations operating in digital commerce may also need to evaluate the interaction between ERP capabilities and online operations. eCommerce ERP Software: Complete 2025 Guide to ERP Webshop provides context on ERP software, ERP integration, webshop architecture, and extending enterprise systems to support e-commerce workflows. These considerations can inform TSA planning where technology separation affects order management, financial reporting, or transaction processing.
Finance planning should also establish how accounting activities will continue during the transition, including general-ledger ownership, reporting responsibilities, reconciliation processes, controls, audit evidence, and applicable accounting standards.
Bottom-Up Planning and Delivery Readiness
TSA Planning benefits from combining executive-level separation objectives with detailed input from the teams that will actually deliver each service. Bottom Up Planning provides a useful framework for incorporating operational assumptions, resource requirements, transaction volumes, process dependencies, and team-level requirements into the broader transition plan.
Resource planning should identify the people, systems, documentation, access rights, and knowledge required to deliver each service. Delivery Planning is particularly relevant because it focuses on organizing the activities and resources needed to deliver defined business outcomes. Within a TSA, this can help connect contractual service commitments with operational execution.
Governance and Best Practices
- Start planning early: Identify shared services and dependencies before transaction close so responsibilities and requirements are understood in advance.
- Define services precisely: Document scope, service levels, pricing, owners, inputs, outputs, and assumptions for every material service.
- Map dependencies: Link people, processes, systems, vendors, data, and controls to the services they support.
- Align finance and operations: Connect TSA costs, budgets, forecasts, reporting requirements, and operational milestones.
- Build measurable readiness criteria: Establish clear conditions for service activation, stabilization, transition, and eventual exit.
- Maintain change governance: Document changes to scope, assumptions, service levels, pricing, timelines, and responsibilities throughout the transition.
Summary
TSA Planning establishes the operational and financial blueprint for temporary services during a business separation or transaction. By defining service scope, ownership, technology dependencies, financial arrangements, governance, resource requirements, and transition milestones, it provides a structured foundation for TSA execution and eventual exit. Effective planning supports continuity while helping the receiving organization build the capabilities required for independent operation and sustainable business performance.