Offering credit to customers is often necessary to secure sales in competitive African markets, but doing so without a clear system can quietly drain an enterprise’s working capital. When credit limits are based on gut feelings rather than data, a single major default can halt an entire supply chain.
For small and medium enterprises (SMEs) across Nigeria and the wider region, cash flow is the lifeblood of daily operations. Uncontrolled credit tied up in unpaid invoices behaves like an interest-free loan funded by your own business.
To avoid liquidity crises, founders and finance teams must learn how to set customer credit limits without guessing.
The risk of informal credit allocation
Many African SMEs allocate credit based on personal relationships or the sheer size of an order. While relationship building is a core component of commerce, it is a poor indicator of a customer’s actual capacity to pay.
A common mistake is assuming that a well-known brand or a large company is safe. Large buyers often demand extended payment terms, which can strain a small supplier’s cash reserves for 90 days or more.
Another critical error is failing to adjust credit limits during periods of high inflation or currency devaluation. A credit limit that was safe twelve months ago may now purchase far less inventory, distorting your cash conversion cycle.
When inflation rises, your replacement cost for inventory increases. If a buyer continues to hold the same credit limit for too long, you are effectively subsidising their inflation risk with your shrinking margins.
A practical framework for setting limits
To establish credit limits without guessing, SMEs can use a simple formulaic approach that combines historical payment data, customer financial strength, and your own risk tolerance.
Begin by requesting bank statements or simple trade references from new business clients. For established accounts, look at their average purchase volume and historical payment lag over the last six months.
A reliable baseline formula for a business-to-business customer is to set the credit limit at 10% to 20% of their average monthly purchase volume. This ensures the outstanding balance rarely exceeds what they can realistically settle within one or two billing cycles.
For higher limits, apply a basic credit-scoring model. Assign points based on three core factors: payment history (40%), length of business relationship (30%), and industry stability (30%).
Customers with high scores qualify for standard credit terms, such as 30 days. Those with lower scores should be placed on a “cash on delivery” basis or given a strict nominal limit that must be cleared before new orders ship.
Monitoring and adjusting credit lines
Setting a limit is not a one-off task. A healthy credit management system requires regular reviews to reflect changing market realities and customer performance.
Analyse your accounts receivable aging report every two weeks. If a customer consistently utilizes their full credit limit but pays late, their limit should be reduced, not increased.
Conversely, you can reward prompt payers by gradually increasing their credit cap. This supports their growth while protecting your gross margins and ensuring predictable cash inflows.
To start implementing this system today, review your top five credit accounts. Calculate their average payment times over the last quarter and adjust their credit limits to match their actual payment performance rather than their target order size.
