For SBA lenders
Short answer
While not automatically ineligible, a business heavily reliant on a single key customer presents a significant credit risk. Lenders must conduct enhanced due diligence to mitigate this risk, such as analyzing the customer relationship's stability and contracts.
The SBA emphasizes prudent lending, which includes assessing repayment risk. A business with substantial revenue concentration from a single customer is inherently risky. Lenders must evaluate the duration and terms of the customer contract, the likelihood of renewal, the customer's financial stability, and the ability of the acquired business to diversify its customer base post-acquisition. The lender must determine if this risk can be mitigated to meet prudent lending standards.
A borrower wants a 7(a) loan to buy a manufacturing business that generates 70% of its revenue from one large corporate client. The lender obtains the contract, verifies its remaining term (5 years), and analyzes the corporate client's financial health. They also require the borrower to submit a diversification plan to reduce reliance on this single customer.
Insider move
Lenders must quantify the risk associated with customer concentration. They need strong mitigating factors, such as long-term contracts, diversification strategies, or exceptional profitability, to justify approval. Failure to adequately address this risk could lead to a guaranty repair if the loan defaults due to loss of the key customer.
13 CFR Part 120 — Business Loans
Office of the Federal Register · Federal regulation
SOP 50 10 - Lender and Development Company Loan Programs
Last checked 2026-06-13. Official sources control — verify before relying on any rule for a live deal.
Last reviewed 2026-06-13 · SBA sources checked through 2026-06-13. DealRoom analysis of public SBA 7(a) lending records (FY2020–present). Grounded in the current SBA rulebook; verify against the official sources above before relying on it for a live deal. Not legal, tax, or financial advice, and not an approval decision.
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