Why Customer Diversification Matters in Credit Appraisal

Vinu:  Manu, a borrower has reported strong sales and profits. But nearly 70% of the sales come from one customer. Should the bank be concerned?

Manu: Yes. Strong financial performance is important, but excessive dependence on one customer creates concentration risk.

Vinu: What exactly is customer concentration risk?

Manu: It is the risk that a borrower depends heavily on one customer or a small group of customers for sales, cash flow and profitability. If one major customer stops purchasing or delays payment, the borrower’s business may be seriously affected.

VinuHow do we measure this dependence?

ManuWe can calculate the customer concentration ratio:

Sales to a Major Customer ÷ Total Sales × 100

Suppose the borrower’s annual sales are ₹10 crore and sales to the largest customer are ₹6 crore. The concentration is 60%.

VinuIs 60% considered risky?

ManuGenerally, yes. But the percentage should not be viewed in isolation. The banker should also examine:

The financial strength of the major customer
The duration of the business relationship
Whether there is a long-term contract
The customer’s payment track record
The borrower’s ability to find alternative buyers
Industry practices and market conditions

Vinu: What could happen if the major customer is lost?

ManuSales may fall suddenly. Inventory may remain unsold, receivables may get delayed, production capacity may remain idle and cash flow may weaken. The borrower may then struggle to pay suppliers, employees and bank instalments.

VinuCan a profitable borrower still face repayment problems because of this?

ManuCertainly. Profit shown in the financial statements does not guarantee timely cash flow. If a major customer delays a payment of ₹1.50 crore, the borrower may face an immediate working capital shortage even though the business is profitable on paper.

Vinu: Should we also examine receivables customer-wise?

ManuAbsolutely. The debtor ageing statement should reveal:

Amount due from each major customer
Normal credit period
Overdue receivables
Disputed invoices
Customer-wise payment behaviour
Receivables outstanding beyond 90 or 180 days

A large customer concentration combined with delayed receivables is a serious warning sign.

Vinu: What if the borrower says that the major customer is a reputed company?

ManuA reputed customer reduces default risk, but it does not eliminate concentration risk. That customer may change suppliers, renegotiate prices, reduce orders, shift production or alter its procurement policy.

Vinu: Does dependence on a large customer also affect bargaining power?

ManuYes. A dominant customer may demand longer credit, lower prices or stricter quality terms. The borrower may accept these conditions because losing the customer could significantly affect the business. This can gradually reduce profit margins and cash flow.

VinuHow can we verify whether sales are genuinely diversified?

Manu: We should examine:

Customer-wise sales for the past three years
GST returns and sales ledgers
Bank account credits
Receivables ageing
Major invoices and purchase orders
Existing contracts
Current order book
Sales made to related parties

VinuWhy should related-party sales be checked separately?

ManuBecause apparent diversification may not be genuine. The borrower may report sales to several entities, but those entities could belong to the same group or promoter. Economically, the business may still depend on one controlling group.

Vinu: What other questions should the banker ask?

Manu: The banker should ask:

Who are the top five customers?

What percentage of sales comes from each customer?
Has any major customer reduced orders recently?
How easily can the borrower replace a lost customer?
Are the products customised for a particular buyer?
Are there confirmed orders for the coming months?
Is the borrower entering new markets or customer segments?

VinuIs customer concentration equally risky in every industry?

ManuNo. In some industries, supplying to a few large buyers is common. For example, an auto-component manufacturer may depend on a limited number of automobile companies. In such cases, the banker should compare the borrower’s concentration with industry practices and assess the strength of its supply arrangements.

VinuWhat if the borrower has maintained the same major customer for ten years?

ManuThat is a positive factor, particularly when the payment record is good and the relationship is supported by contracts or repeat orders. However, the bank should still examine whether the borrower has a contingency plan.

VinuWhat safeguards can the bank consider when concentration is high?

ManuThe bank may:

Seek long-term contracts or confirmed purchase orders
Closely monitor customer-wise receivables
Route major sales proceeds through the loan account
Fix suitable drawing-power conditions
Obtain periodic order-book statements
Review insurance or receivables protection
Encourage the borrower to expand the customer base
Conduct more frequent account reviews

Vinu: So customer diversification is not merely about increasing the number of buyers?

ManuCorrect. Genuine diversification means that sales, receivables and cash flows are reasonably spread across independent and financially sound customers.

Vinu: What is the key credit appraisal takeaway?

ManuA borrower with diversified customers is generally better placed to withstand the loss or delayed payment of any single buyer. Therefore, bankers should not assess only how much the borrower sells—they must also examine to whom the borrower sells, how much each customer contributes and how reliably the money is collected.

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