
The Real Cost of Capital: How to Compare Equity Dilution vs. Debt Interest
Jun 20
2 min read
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One costs you cash. The other costs you control. Choose wisely.
A founder I worked with recently shared this after raising a ₹3 crore equity round:
“The money was great. But I’m down to 52% ownership before Series A. Was that the real cost?”
Another avoided equity, took on debt, and later said:
“We had to cut team expenses to service the loan. Growth slowed. Morale dipped.”
Here’s the mistake both made:
They didn’t measure the true cost of capital—only the immediate pain or comfort.

Let’s unpack the difference between equity dilution and debt interest, and how to evaluate what’s actually costing you more.
Step 1: Understand the Nature of Cost—Cash vs. Ownership
Debt is an upfront commitment.
You repay with cash + interest, typically monthly or quarterly.
Equity is a long-term compromise.
You repay in ownership and influence—forever.
Ask yourself:
“Do I want to give up money now, or decision-making later?”
Step 2: Model the Math—Beyond Just Interest Rates
Let’s compare two options for a ₹1 crore raise:
Option A: Debt
₹1 crore loan at 12% interest
3-year repayment = ~₹1.36 crore total
You still own 100% of your company
Option B: Equity
₹1 crore in exchange for 10% equity
If company exits at ₹100 crore = ₹10 crore goes to that investor
You just “paid” 10x over—if the exit happens
Debt hurts cash flow now.
Equity hurts exit value later.
Neither is wrong. But both need forecasting, not gut feeling.
Step 3: Factor in Risk Tolerance
Debt:
Predictable cost
High pressure on cash flow
Can lead to default if revenue stumbles
Equity:
No immediate repayment
Pressure from investors to grow aggressively
Can lead to misalignment on vision and timeline
If your revenue is stable, debt is cleaner.
If you’re pre-revenue or highly volatile, equity gives breathing room.
Capital isn't just math—it's psychology.
Step 4: Evaluate Based on Stage and Use-Case
Use debt when:
You have predictable income (SaaS, services, D2C with margins)
Funds are for working capital, inventory, or receivables
You want to retain full ownership
Use equity when:
You’re investing in product development, team, or market expansion
You don’t expect immediate returns
You value strategic support and long-term partnership
Match the capital to the intent, not just availability.
Step 5: Blend Capital Strategically
You’re not stuck choosing one.
The best-run startups often use:
Equity for risk capital
Debt for revenue-backed operations
Internal accruals for reinvestment
Capital is a toolkit, not a toggle.
Use each when it serves your growth—and protects your cap table.
TL;DR – Too Long; Didn’t Read
Debt costs cash now. Equity costs ownership forever.
Run real exit math before giving away equity—it adds up fast.
Use debt for working capital and predictable income. Use equity for long-term bets.
Capital isn’t just funding—it’s a decision about power, pace, and partnership.
Blended strategies protect both cash flow and control.
Capital isn’t cheap.
But uncalculated capital is the most expensive kind.
Before you raise, run the math, pressure test the psychology—and always ask:
“What will this cost me when things go right, not just when things go wrong?”