When does it make sense
to borrow to grow?
The leverage rule.

What is financial leverage?

Financial leverage is the use of borrowed capital to amplify the potential return of an investment or business.¹ It works in both directions: it amplifies gains when things go well and amplifies losses when they don't.

Imagine you have $200,000 of your own capital and want to buy an asset that costs $1,000,000 and generates $150,000 per year in net income. Without debt, your return is 15% on the $1,000,000 invested. With an $800,000 loan at 10% annually, you pay $80,000 in interest and receive $70,000 net on your $200,000 — a 35% return on your capital. That's positive leverage in action.

The golden rule: ROI vs. cost of debt

Before taking on any business debt, you need to answer two questions with concrete numbers: How much will the use of that money return? How much does that money cost?²

If the expected return on the project or investment exceeds the effective cost of the debt, the debt makes mathematical sense. If it doesn't, it doesn't — regardless of how attractive the project seems or how urgent the need feels.

The real cost of debt isn't just the nominal interest rate — it includes origination fees, associated insurance, formalization costs and any other charges. Always ask for the Annual Percentage Rate (APR) or Total Financial Cost (TFC) to compare options fairly.

When borrowing makes sense

To acquire assets that generate more than they cost

A piece of equipment that costs $500,000, generates $200,000 per year in additional production and has a 5-year useful life has a 40% annual ROI. If you finance it at 18% APR, the leverage is positive and powerful. Any productive asset — machinery, software, vehicle fleet — that yields more than its financing cost is a candidate for debt.³

For working capital during predictable high-demand periods

If you have a signed $2 million contract deliverable in 90 days but need $800,000 in materials today, a short-term loan to cover that gap makes perfect sense — as long as the contract margin exceeds the financial cost of the loan.

To grow when there's a market opportunity window

In fast-growing markets, execution speed can be more valuable than capital efficiency. If you have evidence your business can capture market share now and the cost of waiting is greater than the cost of debt, leverage to grow may be the right decision.

When debt is a trap

• To cover recurring operating losses. If your business doesn't generate enough cash to operate and you rely on credit to pay payroll or suppliers month after month, debt doesn't solve the problem — it postpones and amplifies it. The problem is structural and requires a structural solution: cut costs, raise prices or change the business model.⁴
• When cash flow can't cover the payments. Before taking on any debt, project your cash flow including loan repayments. If there are months where the projected balance goes negative, the debt will put you in crisis, not rescue you from one.
• At rates that exceed expected returns. Very few projects have sufficient ROI to justify very high loan costs. If you can't access financing at reasonable rates, it may be better to grow more slowly with your own capital.
• To sustain the owner's lifestyle, not business growth. Business debt is for the business. Using it to finance personal expenses — cars, travel, properties — mixes personal and business finances in a way that almost always ends badly.

Types of financing and what each is for

Type	Typical term	Best use	Warning
Line of credit / overdraft	Short term	Cover predictable, temporary cash gaps	Not for structural expenses
Working capital loan	3–18 months	Inventory, materials for a specific contract	Project must have clear ROI
Leasing / financial lease	2–5 years	Machinery, equipment, productive vehicles	Verify actual tax benefit
Investment / long-term credit	5–10 years	Infrastructure, expansion, fixed asset acquisition	Requires solid cash flow projection
Factoring	Per invoice	Advance collection of client invoices	Calculate real APR — can be high

The complete decision framework

Before signing any business loan, run through these five questions in order:

1. What exactly is this money for? If the answer is vague, you're not ready to take on the debt.
2. What's the expected ROI on using that money? Put it in numbers. If you can't quantify it, it's speculation.
3. What's the real APR of this debt, including all costs? Request it in writing from the bank or lender.
4. Does the ROI exceed the APR? If yes, the debt makes mathematical sense. If not, find another funding source or drop the project.
5. Does your projected cash flow cover the payments every month? Including low-season months. If there are months in the red, you need more cushion or less debt.

Business debt in practice: what the bank doesn't tell you

The right instrument for each need

One of the most costly mistakes in SMEs is requesting the wrong type of credit for the wrong need. A revolving line to finance a fixed asset generates unnecessarily high payments. A long-term loan to cover a short-term working capital problem blocks borrowing capacity for when it's truly needed.⁵

Need	Right instrument	Typical term	Warning sign
Gap between invoicing and collection	Factoring / revolving line	30–90 days	If recurring, it's a structural problem
Machinery or productive equipment	Financial leasing	3–5 years	Verify the real tax benefit
Inventory for a large order	Working capital loan	6–12 months	Order margin must exceed credit cost
Facility expansion	Commercial mortgage	10–15 years	Requires long-term cash flow projection

How to negotiate your interest rate: the argument that works

SME credit rates are negotiable — especially with a positive credit history, prior relationship with the bank and organized financial documentation. The most effective argument isn't asking for a lower rate because "you need it" — it's presenting cash flow projections that demonstrate comfortable repayment capacity and explicitly comparing with another bank's offer. Competition between financial institutions works in your favor if you use it consciously. One percentage point difference on a $500,000 loan over 5 years represents approximately $12,500 in total savings.

The debt-to-EBITDA ratio: the key metric banks and investors use

The Debt/EBITDA ratio is the most widely used indicator to determine whether a company is in a healthy borrowing zone. A ratio above 3x-4x starts to be a risk zone in most sectors, though the threshold varies by industry stability and cash flow predictability. Businesses with predictable, recurring cash flows (subscriptions, long-term contracts, commercial rents) can sustainably support higher leverage than businesses with seasonal or cyclical revenue.⁶

This article is for educational purposes only and does not constitute personalized financial, accounting or legal advice. Rates mentioned are indicative and vary by country, lender and business profile. Consult a certified financial advisor before making financing decisions.