Business
Debt vs Equity Funding
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Borrowing costs money you must repay whatever happens. Selling equity costs a share of everything the business ever earns.
The Two Fundamentally Different Bargains
Debt is a contract. You receive money now and owe a defined amount later, whatever happens to the business. The lender has no say in how you run it and no claim on the upside. If you fail, the lender still has a claim, usually secured.
Equity is a partnership. You receive money now and give away a permanent share of everything the business earns from here on. There is nothing to repay, and if the business fails the investor loses with you. If it succeeds beyond expectation, they share that too.
Debt is cheaper and more dangerous. Equity is more expensive and more forgiving. Almost every funding decision reduces to how confident you are in the cash flows.
Key Differences
| Factor | Debt | Equity |
|---|---|---|
| Repayment | Fixed schedule, regardless of performance | None |
| Cost | Interest, deductible against tax | A permanent share of all future profit |
| Control | Unaffected, subject to covenants | Diluted, often with board and veto rights |
| Security | Usually collateral, often a personal guarantee | None |
| Cash flow effect | Immediate and continuing | None |
| Risk if the business struggles | Default, enforcement, personal exposure | Shared with the investor |
| Tax treatment | Interest reduces taxable profit | Dividends are paid out of taxed profit |
| Best suited to | Predictable cash flows, tangible assets | Uncertain outcomes, long payback, intangible assets |
The Tax Shield Is Real but Often Overstated
Interest is deductible, so a rupee of interest costs less than a rupee. At a 25% tax rate, borrowing at 13% has an after-tax cost near 9.75%. Dividends carry no such relief, because they are paid out of profit that has already been taxed.
The shield is worth having, and the calculator above quantifies it. But two cautions apply. It is only worth something if you are actually paying tax; a loss-making business gets nothing from it. And it never outweighs the fact that the principal must be repaid out of cash the business may not generate.
What Dilution Actually Costs
Giving away twenty per cent for ₹1 crore looks cheap when profit is ₹40 lakh. It is not a one-off payment of ₹8 lakh. It is twenty per cent of every year, forever, including the years when profit is many times larger.
If the business grows tenfold, the investor’s twenty per cent grows tenfold with it. Founders routinely underestimate this because they price dilution against today’s profit rather than against the outcome they are working towards.
The counter-argument is equally real: twenty per cent of a business that succeeded because it had the capital is worth more than a hundred per cent of one that did not. Dilution is expensive; running out of money is worse.
Where Each Is Appropriate
Raise debt when
- Cash flows are predictable enough to service a fixed instalment
- The money funds something with a measurable, near-term return
- You have collateral, or the asset being financed is itself the security
- You are unwilling to give up control or share the upside
Raise equity when
- The payback is distant or genuinely uncertain
- The business is pre-profit, so it cannot service interest at all
- You need more than money: expertise, relationships, credibility
- Existing debt already stretches the balance sheet
A common mistake is funding working capital with equity and long-lived assets with short-term debt. Match the term of the funding to the life of what it buys.
The Options in Between
The choice is not binary. A convertible note or compulsorily convertible preference shares defer the valuation question until a later round. Revenue-based financing repays as a share of collections, so the burden flexes with performance. Venture debt sits alongside an equity round at a lower cost than pure equity.
For most small Indian businesses the practical middle ground is simpler: a working capital facility for the fluctuating requirement, a term loan for equipment, and equity only when the business genuinely cannot be funded otherwise.
How to Decide
Ask first whether the business can service the instalment in a bad year, not an expected one. Model revenue thirty per cent below plan and check the debt still works. If it does not, debt is not cheaper; it is a risk you have not priced.
Then ask what the equity is worth if the plan succeeds. Compare the investor’s share of that outcome with the total interest on the equivalent loan. The gap is usually far wider than founders expect.
The calculator above compares year-one owner earnings under both routes, and flags the principal repayment that never appears in a profit statement.
Frequently Asked Questions
Sources and Method
The calculator compares owner earnings in year one under each route, applying interest and tax on the debt side and the dilution percentage on the equity side, and separately shows the annual principal repayment that the profit statement does not capture. It models a single year and does not project the compounding effect of dilution over the life of the business.
- Deductibility of interest on borrowed capital — Income Tax Act, Section 36(1)(iii).
- Share issue, preference shares and convertible instruments — Companies Act, 2013.
Last reviewed 22 August 2026. General information, not financing, legal or tax advice.