Minority interest and associate companies

The ownership spectrum

How you account for an investment in another company depends entirely on how much of it you own:

Ownership stake	Accounting treatment	Balance Sheet	Income Statement
Under 20%	Investment / Fair value	Investment line item (asset)	Dividends or gains/losses
20–50%	Equity method (associate)	"Investments in Equity Interests" (asset)	Your share of their Net Income
Over 50%	Full consolidation (subsidiary)	100% of their assets & liabilities	100% of their revenue & expenses

The thresholds aren't perfectly rigid — what really matters is the level of influence or control. But 20% and 50% are the standard benchmarks used in interviews.

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Less than 20% — simple investment

You record the investment at its fair value on the Balance Sheet. You don't have significant influence over the company's operations, so you don't get to claim any of their revenue or expenses.

Impact on EV: None specific. The investment is a non-operating asset, similar to cash. In some valuation contexts, you might subtract it from EV to get a "core" EV that reflects only the company's own operations — but this is an edge case.

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20–50% — equity method (associates)

You have significant influence (e.g. a board seat) but not outright control.

Balance Sheet: You record an "Investments in Equity Interests" or "Equity Method Investment" line item on the asset side. Its value starts at your purchase price and increases/decreases each period by your share of the associate's Net Income minus dividends received.

Income Statement: You record your proportional share of the associate's Net Income, usually as a single line called "Income from Equity Method Investments" or "Equity in Net Income of Associates." You do not consolidate their revenue and expenses.

Impact on EV: The equity method investment is a non-operating asset. In a clean valuation, you would:

1. Calculate EV based on the parent's own operations
2. Value the equity method investment separately
3. Add it back to get total Equity Value

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More than 50% — full consolidation

You have control. You consolidate 100% of the subsidiary's assets, liabilities, revenue, and expenses onto your own financial statements — even if you only own 70%.

The portion you don't own shows up as Minority Interest (or Non-Controlling Interest).

Where Minority Interest appears

Balance Sheet: Under Equity or between Liabilities and Equity — it represents the outside shareholders' claim on the subsidiary's net assets.

Income Statement: At the very bottom, below Net Income, you'll see "Net Income attributable to Non-Controlling Interest" — this is the minority holders' share of the subsidiary's profit. The line above it, "Net Income attributable to [Parent Company]," is what flows into the parent's Retained Earnings.

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Why Minority Interest is ADDED to get Enterprise Value

This is one of the most frequently asked EV questions, and candidates get it wrong constantly.

The logic in 3 steps:

1. When a company consolidates a subsidiary, 100% of the subsidiary's revenue and EBITDA appears on the parent's Income Statement.

2. EV-based multiples like EV/EBITDA use the parent's total EBITDA — which includes 100% of the subsidiary's contribution.

3. If the EV only reflected the parent's ownership share, the multiple would be inconsistent — you'd have 100% of the EBITDA in the denominator but less than 100% of the value in the numerator.

Therefore: You add Minority Interest to EV so that the numerator (total enterprise value) matches the denominator (total EBITDA including 100% of the subsidiary).

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The classic interview questions

"A company owns 70% of a subsidiary. Does the subsidiary's revenue show up on the parent's Income Statement?"

Yes — 100% of it. When you own more than 50%, you fully consolidate. All of the subsidiary's revenue, COGS, and expenses roll up into the parent's financials. The 30% that belongs to minority shareholders is carved out at the bottom of the IS as "Net Income attributable to Non-Controlling Interest."

"How does an equity method investment affect Enterprise Value?"

It doesn't directly — it's a non-operating asset. Since the associate's revenue isn't on your Income Statement, the investment shouldn't be in your EV either. You'd value it separately and add it to Equity Value. If you accidentally left it in, your EV/Revenue multiple would be overstated because EV would include the associate's value but Revenue wouldn't include the associate's revenue.

"A company owns 40% of another company. The other company earns $100 in Net Income. What's the impact on the parent?"

The parent records $40 (40% × $100) as "Income from Equity Method Investments" on its Income Statement. On the Balance Sheet, the Equity Method Investment line item increases by $40 (minus any dividends received from the associate). The parent does NOT consolidate the associate's revenue, expenses, or individual assets.

"What if the ownership goes from 30% to 60%?"

The accounting treatment changes from equity method to full consolidation. You now consolidate 100% of the subsidiary's assets, liabilities, revenue, and expenses. You record Goodwill for the premium paid, and you create a Minority Interest line for the 40% you still don't own. This is a step acquisition and it's quite complex — you'd typically revalue the previously held 30% stake to fair value and recognise a gain or loss.