Imagine your business is like a car driving on the road of growth.
The faster you want to go (meaning a higher growth rate), the more fuel you need.
In business terms, that extra fuel is money — and usually, it comes from external financing.
That’s what we call EFN (External Financing Needed) — the amount of extra funding your company needs to support its growth.
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When your growth is slow, your company can grow using its own money (retained earnings, spontaneous liabilities, etc.).
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But when your growth is fast, internal funds usually aren’t enough — so you’ll need to bring in external funds.
How Growth Increases EFN
Let’s break it down step by step:
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Sales increase → You need to produce or buy more goods.
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To produce more → You need more assets (machines, materials, employees, inventory).
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More assets → You need more money.
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But internal funds are limited → So you turn to external financing.
That’s why a higher growth rate often means a higher EFN — because fast growth needs more resources than the company can generate internally.
Let’s say your company’s sales in 2025 are 100 billion $ and you plan to grow next year.
| Sales Growth Rate | Approximate EFN | Explanation |
|---|---|---|
| 5% | 1 billion | Low growth → internal funds are enough |
| 20% | 5 billion | Moderate growth → some external financing needed |
| 40% | 12 billion | High growth → strong need for external financing |
As sales growth increases, EFN also rises.
But Here’s the Caveat
This relationship isn’t perfectly linear. A smart company can manage its finances to reduce EFN even while growing quickly.
Here’s how:
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Improve profitability → generate more internal funds.
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Use assets more efficiently → produce more with less investment.
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Negotiate longer payment terms with suppliers → more spontaneous liabilities.
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Reduce dividend payout → keep more earnings inside the business.
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Control growth → avoid expanding faster than your finances can handle.
Summary
| Growth Rate | EFN Level | What It Means |
|---|---|---|
| Low | Low EFN | Growth is supported by internal funds |
| Moderate | Medium EFN | Mix of internal and external financing |
| High | High EFN | Heavy reliance on external capital |
In result:
Fast growth feels exciting — but without enough financial “fuel,” it can be risky.
A truly successful business doesn’t just grow quickly; it grows wisely, balancing expansion with smart EFN management.
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