Post-Deal Finance Integration: Why Acquisitions Underperform in the First 100 Days

Deals are won on strategy, but value is routinely lost in the first 100 days when reporting, cash visibility, ERP systems and finance team capability do not match the deal model. Across Australian corporate acquisitions and private equity buy-and-build platforms, due diligence examines historical earnings thoroughly while spending far less time testing whether the acquired finance team can operate at the buyer's pace and reporting standard. This episode examines what happens after completion, why bolt-on rollups stretch holding periods when finance and systems remain fragmented, when to back the existing Financial Controller versus introducing integration capability, and a practical first-100-day finance integration framework for boards, CEOs and CFOs. TOPICS COVERED Why financial due diligence is not the same as finance capability diligence What PitchBook, PwC, Deloitte and McKinsey data show about post-deal value erosion Why buy-and-build and bolt-on acquisitions strain mid-market finance teams First-100-day pressure points: cash visibility, month-end close, ERP systems and payroll Auditable synergy tracking versus deal-model forecasts When to support the incumbent finance leader, add interim resources or upgrade the role A practical pre-close and first-100-day checklist for boards, CFOs and finance leaders LINKS Full article: https://www.byronthomas.com.au/blog/p... Executive search: https://www.byronthomas.com.au/execut... Accounting and finance recruitment: https://www.byronthomas.com.au/accoun... Our methodology: https://www.byronthomas.com.au/our-me... Contact Byron Thomas Recruitment: https://www.byronthomas.com.au/contact/ ABOUT Produced by Byron Thomas Recruitment, executive search and accounting and finance recruitment specialists serving Australia and New Zealand. This episode is an AI-narrated discussion based on published market insight.