Post-Acquisition Integration
Post-acquisition integration is bringing a business you have just bought under your own finance, controls and reporting, usually in the first 100 days after closing.
Below roughly ₹20 crore of revenue, the founder is the information system. (read where we wrote it)

100Days after closing, planned before the deal signs
What has to change after a deal closes, and when?
A deal closes on a date, but the business keeps running on the old owner's habits. The first month sets the new ones, so most of the work is planned before closing.
The bigger the circle, the more value is kept or lost there.
Before closing
What changes on day one, what waits, and who owns each item, agreed while the seller is still in the room.
Day one
Bank mandates and signatories changed, the opening balance sheet agreed, and payroll, GST and filings carried on without a gap.
The first close
The first month-end on the new owner's standard, with approval limits and payment controls. The old owner's related dealings end or get priced.
Reporting
One monthly pack on one set of definitions: the plan against actuals, loan covenants and any earn-out.
Systems and people
Finance roles, the accounting and ERP moves and the old owner's handover settled, so the function runs once we step back.
What does integration cover for the new owner?
Day one, the first close and the controls, reporting to the new owner, and the systems and people that keep it running.
Where next in Post-Acquisition Integration?
Post-Acquisition Integration pages
- How we workThe first 100 days, planned before closing
We plan the first 100 days before closing. Then we change the bank mandates, close the first month on the new owner's terms, set up the reporting and hand over to a team that can run it.
- InsightsInsights on the business after a deal
Our team writes about the monthly close, the controls on cash, and reporting that gives every reader one set of numbers.





