
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.
Doug is a Chartered Alternative Investment Analyst who spent more than 20 years as a derivatives market maker and asset manager before “reincarnating” as a financial media professional a decade ago.
Before joining Britannica, Doug spent nearly six years managing content marketing projects for a dozen clients, including The Ticker Tape, TD Ameritrade’s market news and financial education site for retail investors. He has been a CAIA charter holder since 2006, and also held a Series 3 license during his years as a derivatives specialist.
Doug previously served as Regional Director for the Chicago region of PRMIA, the Professional Risk Managers’ International Association, and he also served as editor of Intelligent Risk, PRMIA’s quarterly member newsletter. He holds a BS from the University of Illinois at Urbana-Champaign and an MBA from Illinois Institute of Technology, Stuart School of Business.
Daniel Costa is a writer for Encyclopedia Britannica. He has studied applied linguistics, philosophy, and history.
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.

A subsidiary is a company owned or controlled by another business firm, known as a parent company or holding company. Typically, the parent owns more than 50% of the subsidiary’s voting stock, giving it control over the subsidiary’s board of directors and major business decisions. In some cases, a company can exercise control with a smaller ownership stake.
A parent company is generally understood to be one that conducts its own business operations apart from those of its subsidiary or subsidiaries, while a holding company’s primary function is ownership and control of other businesses. In large corporate structures, subsidiaries may be organized into several levels. A “second-tier subsidiary,” for example, is a subsidiary of a “first-tier subsidiary,” which is in turn owned by the ultimate parent or holding company.
Depending on how much of a company is owned by another business, different rules may apply to its operations, accounting, and taxation.
In challenging situations, such as bankruptcy, a parent company may lose control of a subsidiary even while retaining an ownership stake. In such cases, the subsidiary would no longer be included in the parent’s consolidated financial statements, and the remaining stake is often accounted for as an equity investment.
When one company acquires another, the two typically keep separate financial records. But investors also need to know how the combined business is performing. That’s where consolidated financial statements (e.g., the balance sheet, income statement, and statement of cash flows) come in.
Analysts can also examine the value of goodwill recorded in an acquisition and whether the subsidiary is adding to—or subtracting from—the parent company’s earnings. After all, the idea behind an acquisition is that the combined business will eventually be worth more than the two separate companies. Learn more about parent companies, subsidiaries, and consolidated financial statements.
A subsidiary differs from a division, which is not a separate legal entity as far as liability, regulation, and taxation are concerned. Nor should a subsidiary be confused with an affiliate, which is typically less than 50% owned by the parent company.
Sometimes, when one company purchases another, the acquired business is merged into the parent company rather than maintained as a subsidiary. In such cases, the acquired company ceases to exist as a separate legal entity, although its brands, products, patents, and other assets may continue under the parent company’s ownership.
Subsidiaries can help a parent company grow, cut costs, and expand into new markets. Some advantages include:
Subsidiaries can also bring additional costs and complications, particularly when the parent or holding company doesn’t own the subsidiary in full.
As far as accounting is concerned, subsidiaries maintain their own financial statements, tracking their assets, liabilities, income, and expenses separately from those of the parent company. They may also have their own federal tax identification numbers and file separate tax returns, depending on their legal structure. Transactions between subsidiaries and their parent companies must also be recorded, although these transactions are eliminated when preparing consolidated financial statements.
Daniel CostaThis article was most recently revised and updated by Doug Ashburn