Minority Interest (Non-Controlling Interest)
If a parent owns 80% of a subsidiary, it consolidates 100% of the subsidiary's financials but 20% belongs to outside investors — that 20% slice is minority interest.
Definition
Minority interest (also called non-controlling interest, or NCI) is the share of a subsidiary's equity and earnings that belongs to outside shareholders when a parent company owns more than 50% but less than 100% of the subsidiary. Under consolidation accounting, the parent reports 100% of the subsidiary's revenue and expenses, then subtracts the minority owners' share of net income to arrive at net income attributable to the parent.
Formula
Enterprise Value = Equity Value + Net Debt + Minority Interest + Preferred Stock
Enterprise Value Bridge
How to get from market cap to enterprise value
Balance Sheet T-Account
Assets on the left must equal Liabilities + Equity on the right
How Minority Interest Appears on the Financial Statements
On the balance sheet, minority interest sits in the equity section (or between liabilities and equity under older standards) and represents the outside owners' claim on the subsidiary's net assets. On the income statement, the parent consolidates 100% of the subsidiary's revenue and expenses, then deducts 'net income attributable to non-controlling interest' near the bottom to show earnings belonging to the parent's shareholders. This is why you will see two net income lines: consolidated net income and net income attributable to the parent.
Minority Interest and Enterprise Value
Enterprise Value = Equity Value + Net Debt + Minority Interest + Preferred Stock. Minority interest is added because the parent consolidates 100% of the subsidiary's EBITDA in its financials. If you use that full EBITDA in an EV/EBITDA multiple, you must also include the minority owners' claim on that EBITDA in the enterprise value. Failing to add minority interest would understate EV relative to the EBITDA being used, distorting valuation multiples.
Partial Ownership vs. Full Consolidation
When ownership exceeds 50%, the parent has control and must fully consolidate. Between 20% and 50%, the equity method is used — only the parent's share of net income appears as a single line item. Below 20%, the investment is carried at fair value. The distinction matters enormously: consolidation inflates revenue and EBITDA by including 100% of the subsidiary, while the equity method keeps the subsidiary off the parent's top line entirely.
Worked Example — With Real Numbers
Company A owns 75% of Subsidiary B. Subsidiary B has $100M in revenue and $20M in net income. Company A consolidates 100% — reporting $100M of Subsidiary B's revenue. On the income statement, Company A shows $5M as 'net income attributable to non-controlling interest' (25% x $20M). On the balance sheet, the 25% NCI equity claim appears in the equity section. When computing EV, the minority interest balance is added because the full $100M of Subsidiary B's EBITDA is already in the consolidated numbers.
Key Takeaways
Minority interest arises when a parent owns >50% but <100% of a subsidiary and must fully consolidate
It is added to Enterprise Value because the parent consolidates 100% of subsidiary EBITDA
On the income statement, NCI's share of net income is subtracted to isolate the parent's earnings
The equity method (20-50% ownership) does not create a minority interest — only full consolidation does
Common Mistakes in Interviews
Forgetting to add minority interest to Enterprise Value — this is one of the most common bridge errors
Confusing minority interest with the equity method — they apply at different ownership thresholds
Not understanding that consolidation includes 100% of revenue/EBITDA even when ownership is less than 100%
How Interviewers Test This
When asked to walk through the Enterprise Value bridge, always include minority interest and explain why: 'We add it because we are consolidating 100% of the subsidiary's EBITDA, so we must also include the claim that minority owners have on that EBITDA.' This shows you understand the logic, not just the formula.
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