Carve-out cost reduction: a UK operator's guide

Why carve-outs are different

Procurement-driven synergies typically account for 25-40% of total merger and separation cost-saving potential (McKinsey & Company) ^[1], which is why a carve-out that treats procurement as an afterthought leaves real money on the table. That prize is worth chasing now: global M&A ran at around US$4 trillion in 2025, with Europe contributing roughly US$0.9 trillion (Statista) ^[2], and deal values were up 15% even as volumes fell 9%, with continued megadeal activity keeping carve-outs and portfolio reshaping firmly on the agenda (PwC) ^[3].

In a normal acquisition the target already has its own supplier base, its own contracts and its own procurement function. In a carve-out none of that is fully true. The newco inherits shared contracts it does not own, transitional services it pays a premium for, and often no procurement function at all. Cost work has to run in parallel with basic function build.

Where carve-out cost usually hides

• TSA overspend - transitional service agreements are almost always priced above market, sometimes 2-3x
• Duplicated software - inherited SaaS often overlaps with what the newco has to buy standalone
• Contract split terms - group-level contracts split at carve-out rarely retain the group discount
• Insurance and benefits - standalone buys at newco scale come in materially higher than group rates
• Indirect tail - inherited tail suppliers usually multiply because nobody rationalises them at separation

Standing up procurement after a carve-out

The first job is a light operating model, not a full transformation. In the first 100 days the newco needs enough procurement capability to exit TSAs safely, manage the top suppliers, and protect the day-one savings case - not a full category management machine.

Day 1-30: the minimum viable function

• Interim procurement lead in place - full-time or fractional
• Full inheritance list of contracts, TSAs and suppliers
• Top 20 suppliers mapped, contacted and reassured
• Emergency purchase process stood up for anything mid-transition

Day 30-100: exit TSAs and lock in day-one savings

• TSA exit plan by service, with target dates and standalone replacement
• Re-tender on the top 5-10 categories where standalone pricing is clearly worse
• Insurance, benefits and IT renewals aligned to newco scale
• Savings tracker with finance sign-off, feeding the sponsor pack

Month 4-12: build the permanent operating model

• Target operating model design for procurement in the newco
• Category ownership assigned to permanent hires
• Systems (P2P, analytics, CLM) selected and rolled out
• Governance cadence embedded with CFO and sponsor

What a realistic carve-out cost prize looks like

For a UK carve-out with £30-100m of addressable third-party spend, exiting TSAs cleanly and re-tendering the top standalone categories typically delivers 8-15% of that spend as run-rate savings inside 12 months, with a further step-up when the target operating model beds in. The single biggest lever is almost always TSA exit rather than sourcing.

Where this connects

Carve-out work draws on our interim procurement and procurement transformation services, and pairs with the target operating model guide, the post-merger integration guide and the 100 day cost plan.