Glossary · Reading the business
Customer concentration
In short
When a large percentage of a business's revenue relies on a small number of customers. For buyers, high customer concentration is a significant risk, as losing even one major customer can severely disrupt cash flow.
What it means in a deal
Lenders pay close attention to customer concentration because it directly impacts the business's stability and your ability to make loan payments. During due diligence, demand a customer list with a detailed revenue breakdown. If concentration is high, thoroughly investigate the strength of those customer relationships, existing contract terms, and any plans for diversification.
Related terms
Common questions about Customer concentration
- Can a high customer concentration (e.g., one customer is 50% of revenue) jeopardize my SBA 7(a) loan approval?
- How does high customer concentration in a target business affect SBA 7(a) acquisition loan approval?
- What specific factors should a lender assess when underwriting a business with a high customer concentration?
- Can an SBA 7(a) loan be used to purchase a business with a high customer concentration?
- What specific due diligence is required from a lender if the business being acquired has significant customer concentration?
- What if the business I'm acquiring has a high customer concentration, with one client representing 50% of revenue?
Defined by CapBench SBA Intelligence — plain-English definitions for business buyers, lenders, advisors, and AI agents, grounded in public SBA rules and records. Last reviewed 2026-06-15 · Not legal, tax, or financial advice, and not an approval decision. Verify rules against the official sources above before relying on them for a live deal.
Pressure-test the numbers before you make an offer
Send us the asking price and the seller's cash flow — we'll show whether the deal services SBA debt and where the add-backs are likely to hold up.
Free · No documents · Usually same-day
Backed by data on 1,000+ SBA lenders and 300,000+ funded deals. Your details go only to lending partners you ask to be matched with — never sold to advertisers.