Transition Services Agreement (TSA)
A post-close contract where the seller (typically a parent company in a carve-out or corporate divestiture) continues providing specific services — IT, HR, finance, procurement — to the divested business for a defined period, at cost-plus or fixed pricing.
Full Definition
TSAs are the operational bridge in carve-out transactions. When a parent company divests a division, the division often depends on shared services (IT systems, HR, finance, procurement, legal, facilities) that can't be separated in time for closing. The TSA extends those services for a transition period while the buyer builds or acquires replacements.
How it actually works: Typical TSA provisions: (1) service scope — specific services to be provided, service levels; (2) duration — typically 12-24 months, sometimes with extensions; (3) pricing — cost-plus markup (typically 10-20% over direct cost) or fixed fees; (4) termination rights — buyer can terminate services as replacements are built; (5) governance — coordination mechanisms, escalation procedures; (6) liability — seller's liability for service failures (typically limited).
TSAs are operationally complex. The seller has to continue providing services it was winding down; the buyer has to project manage a portfolio of time-limited services while building replacements. Common issues: service quality degradation as seller's team diverges, cost overruns, timeline slippage, disputes over scope creep.
Seller vs. Buyer Perspective
As seller providing TSA services: (1) scope services carefully, with clear definitions; (2) price at cost-plus markup that reflects actual burden; (3) set firm end dates with limited extension options; (4) protect yourself against open-ended scope; (5) limit liability for service failures; (6) include termination rights if seller's underlying services change. Avoid TSA scope creep — buyers often try to add services post-signing.
As buyer receiving TSA services: (1) scope carefully to include everything you'll actually need; (2) negotiate pricing vs. build-in-house alternatives; (3) build termination rights for early exit as replacements are ready; (4) establish clear service levels and remedies for failures; (5) plan IT/ERP/systems separation timeline carefully — often longest-duration services; (6) budget significant internal resources for TSA management. Underscoping TSAs creates operational crises in first 6 months post-close.
Real-World Example
A $180M revenue company divests a $40M division with shared IT, ERP, HR, and procurement. TSA covers: (1) ERP system access and support for 24 months at $150K/month; (2) IT infrastructure for 18 months at $80K/month; (3) HR payroll processing for 12 months at $25K/month; (4) procurement for 12 months at $30K/month. Total TSA cost: ERP $3.6M + IT $1.44M + HR $300K + procurement $360K = $5.7M over the full period. Buyer invests $4.2M in systems and hires to replace TSA services. Divested business becomes fully independent month 18 (earlier than 24-month TSA end). Buyer saves 6 months of ERP costs = $900K. Total separation investment: TSA payments + replacement builds = ~$9M — meaningful but necessary for clean separation.
Why It Matters & Common Pitfalls
- !IT separation is usually the longest. Budget 18-24+ months for ERP/system separation.
- !Cost overruns are common. TSA pricing should include reasonable markup; actual costs to seller may exceed markup.
- !Service quality degradation. As seller's team loses attention/talent, quality often drops. Build quality standards.
- !Scope creep. Buyers need more services than initially scoped. Plan for amendments.
- !Termination rights. Early termination as replacements are built saves money.
- !Knowledge transfer. Part of TSA purpose is knowledge transfer to buyer's replacement systems.
- !Dependencies. Some services depend on others; cutting off one can break chain.
- !Exit planning. Both parties should plan exit ramps from Day 1 of TSA.
Frequently Asked Questions
What is a Transition Services Agreement?↓
How are TSA services priced?↓
How long does a typical TSA last?↓
Related Terms
Carve-out
A transaction in which a parent company sells a specific division, product line, or subsidiary rather than the entire business — structurally complex because the divested unit typically shares services, systems, and resources with the parent.
Divestiture
The sale by a company of a subsidiary, business unit, product line, or other asset to a third party. Divestitures are driven by: portfolio rationalization (selling non-core assets), capital raising, regulatory requirements (antitrust mandated divestitures), strategic refocus, or activist investor pressure. From the buyer's perspective, divestitures are often undervalued carve-outs where motivated sellers create attractive pricing. From the seller's perspective, divestitures require careful separation planning and Transition Services Agreements (TSAs).
Disentanglement
Disentanglement is a post-close integration concept describing an aspect of business transition after an acquisition closes.
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Disclaimer: The information provided on this page is for educational and informational purposes only. It should not be considered financial, legal, or investment advice. Business valuations depend on many factors specific to each situation. Always consult with qualified professionals — including business brokers, CPAs, and M&A attorneys — before making acquisition or sale decisions. LegacyVector is not a licensed broker, financial advisor, or attorney. Data shown may be based on limited samples and may not reflect current market conditions.
LegacyVector Research Team
Reviewed by M&A professionals · Updated April 2026