Accounting consolidation consists in establishing the financial statements of a group of companies, for publication but also for its internal needs. To do this, it groups the accounts of each of the companies that make up this group and makes restatements in order to act as if it were only a single entity. The word "consolidation" here is derived from to consolidate, which means "to group".
The consolidated financial statements (or "consolidated accounts"), including the consolidated balance sheet, the consolidated income statement and the consolidated cash flow statement, are prepared as if they were one and the same company. Under certain conditions, the establishment of consolidated accounts is mandatory.