Agree the reporting perimeter first

Before requesting a trial balance, write down which legal entities, books and reporting dates belong in the group submission. Confirm the transaction’s relevant dates and accounting conclusions with the people responsible for the deal and financial reporting. A signed agreement, legal completion, control assessment and accounting entry should not be treated as interchangeable concepts.

Define the first reporting period and how pre-acquisition and post-acquisition activity will be presented. Also specify whether any full-period comparison is a management illustration and how it differs from the reported financial statements. Do not force a target’s existing monthly report into a new group package without reconciling that basis.

Protect the opening-balance trail

Retain the acquired business’s original closing records. Keep a separate, traceable bridge for transaction-related adjustments and group reporting changes. Assign accountable owners to the opening balance sheet, valuation inputs and unresolved accounting judgments.

The first operating close should make it possible to distinguish acquired balances from subsequent trading, settlements and consolidation entries. Avoid a single unexplained “acquisition adjustment” that conceals multiple decisions.

A practical bridge to request

Acquired ledger balances → identified reporting-basis adjustments → transaction-accounting adjustments → group opening balances. Maintain the supporting calculations, review status and version history outside this planner.

Accounting treatment depends on the facts and applicable framework. This guide does not determine whether a transaction is a business combination, prescribe purchase accounting or resolve measurement-period questions. Deloitte’s business-combinations guidance explains the importance of assessing the acquired set and the applicable accounting requirements.[3]

Map the chart of accounts before consolidating

Make the relationship between each target account and the group reporting structure explicit. Identify accounts that need splitting, differences in expense classification, missing dimensions and data that cannot yet be produced reliably. Reconcile totals before and after the mapping.

Decide who can change the mapping and how those changes are reviewed. Separately document policy differences requiring an accounting assessment; renaming an account does not align accounting policy. For intercompany balances, identify counterparties consistently so group eliminations can be traced.

Build the first calendar around readiness

Use the recurring close template as a base and add acquisition-specific tasks. An illustrative sequence is below; timing must reflect your transaction and information availability.

Before the closeAt submissionBefore release
Confirm entity perimeter, period and reporting basis.Obtain the trial balance, account detail and reconciliations.Reconcile acquired-entity results to the consolidated package.
Secure authorized access to banking, payroll and accounting records.Validate mappings and identify missing or inconsistent dimensions.Review transaction entries separately from operating results.
Assign owners to opening balances and accounting questions.Match intercompany balances and capture exceptions.Approve significant judgments and disclose remaining limitations to recipients.
Agree templates, cutoff and an escalation route.Document estimates, missing information and their reporting impact.Record remediation owners and dates for the next cycle.

Make exceptions visible to the CFO

The first close may contain information gaps. A useful exception record describes the issue, affected balance or metric, best available evidence, decision-maker and next action. Avoid declaring the integration complete because the first package was delivered.

Deloitte includes financial close, the opening balance sheet, cash management and data retention among finance readiness areas.[1] PwC describes finance integration as alignment of reporting, controls, budgeting and approvals.[2] Together, these are a useful reminder to connect the first calendar to the broader operating model.

Carry diligence findings into accountable actions using QoE Kit. Coordinate the broader acquisition plan at Rollup CFO, and connect reporting priorities through PEBackedCFO.

Adapt the close calendar →

For the recurring process, see the month-end close checklist.

Sources and further reading

  1. Deloitte: M&A integration plan for Day One readiness. Finance readiness areas.
  2. PwC: Integrations. Finance integration, governance and coordinated workstreams.
  3. Deloitte: A Roadmap to Accounting for Business Combinations. Further technical reading; consult the applicable standards and advisers for transaction-specific conclusions.

The example workflow and checklist are PEClose’s operating suggestions. Referenced firms have not endorsed this site.