What happens after you buy a business?

The first 100 days after closing a business acquisition are critical. Priorities include: seller transition and knowledge transfer (30–90 days), meeting all employees and key customers, understanding financials at a granular level, identifying quick-win improvements, and establishing your operating cadence. The golden rule: change nothing for the first 90 days unless it's urgent.

The post-close transition determines whether your acquisition succeeds. Here's the playbook:

Week 1: Day One Communication - Meet every employee individually — explain the transition and your vision - Contact top 10 customers personally — reassure them nothing changes - Meet key vendors and suppliers - Review all upcoming deadlines, payments, and commitments - Shadow the seller and learn the daily rhythm

Days 1–30: Learn the Business - Shadow the seller on every aspect of operations - Document all processes, passwords, and tribal knowledge - Understand the financials at the line-item level - Map all customer relationships and risk - Review all contracts, leases, and agreements - Identify the 3–5 things only the seller knows how to do - Set up your own banking, accounting, and management systems

Days 30–60: Stabilize - Begin handling customer relationships independently - Take over financial management and reporting - Identify any "surprises" not caught in due diligence - Build relationships with employees — understand their concerns - Establish your weekly management cadence (team meetings, KPI reviews) - Address any urgent operational issues

Days 60–100: Optimize - Implement quick wins (pricing adjustments, cost reductions, marketing) - Start building systems and SOPs where none exist - Evaluate team — identify A-players, train B-players, plan for C-players - Set 90-day and annual goals - Begin marketing and growth initiatives

The golden rules of post-acquisition: 1. Don't change anything for 90 days unless urgent. Understand before you improve. 2. Over-communicate with employees. They're scared. Reassure them. 3. Keep the seller accessible. Even after formal transition, you'll have questions. 4. Focus on cash flow first. Growth can wait; cash management can't. 5. Document everything. The seller carries tribal knowledge that will walk out the door. 6. Don't fire anyone immediately unless they're clearly toxic. Stability matters.

Common post-acquisition mistakes: - Making sweeping changes in week one (kills morale) - Ignoring employee concerns and culture - Underestimating working capital needs - Over-investing in growth before stabilizing operations - Neglecting the seller relationship too early - Not tracking KPIs from day one

Key Takeaways

  • Change nothing for 90 days — understand before you improve
  • Week 1: meet every employee, contact top 10 customers, shadow the seller
  • Document all tribal knowledge and processes during the transition period
  • Focus on cash flow stability before pursuing growth

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