A currency exchange method used to convert the currency of the foreign subsidiary into the currency of the parent company
The temporal method is a currency exchange method used to convert the currency that a foreign subsidiary ordinarily does business in into the currency used by its parent company. The parent company’s commonly used currency is referred to as the subsidiary’s “functional currency.” It may also be referred to as the “reporting currency” because it is the currency used in the parent company’s published financial statements.

The reason for the currency conversion is the fact that the parent company is required to produce consolidated financial statements, such as its income statement and balance sheet, that include the financials of its subsidiary companies.
Assume Company ABC is headquartered in the United States, but it operates a subsidiary company in Australia. The Australian subsidiary will, of course, ordinarily conduct business in Australia using the Australian dollar. However, when the time comes for the parent company in the US to issue financial statements, the assets, liabilities, expenses, revenues, etc., of its Australian subsidiary must be converted from Australian dollars into US dollars.
Converting all of the foreign subsidiary’s financial activity into another currency can get rather complicated. This is because the basis for the currency conversion rate varies according to exactly what it is being applied to. In other words, not just one, but several, currency exchange rates must be considered. Here’s a brief breakdown of how this works:
When converting the foreign subsidiary’s retained earnings figure to the company’s functional currency, it is important that the equation Retained Earnings (Ending) = Retained Earnings (Beginning) + Net Income – Dividends must balance so that the income and retained earnings reported on the balance sheet match.
The rise of multinational companies made currency conversion operations necessary for accurate financial reporting by parent companies. As more companies domiciled in one country oversee subsidiary firms in foreign countries, the importance of the temporal method continues to grow.
CFI is the official provider of the Financial Modeling and Valuation Analyst (FMVA)™ certification program, designed to transform anyone into a world-class financial analyst.
To keep learning and developing your knowledge of financial analysis, we highly recommend the additional CFI resources below: