Overtrading occurs when a business expands its operations at a pace that exceeds its available working capital and financial resources. This can happen when a company takes on more business than it can sustain without sufficient cash flow to support day-to-day operations.

Here are key points about overtrading:

1. Cash Flow Strain: Overtrading often leads to a cash flow shortage, as the business needs more funds to pay suppliers, cover increased inventory, and finance its operations. The gap between receiving payments from customers and paying suppliers can stretch too far.
2. Inventory Buildup: To meet increased demand, companies may overstock, tying up capital and cash flow to purchase goods that have not been sold.
3. Borrowing Pressure: To support rapid expansion, businesses may rely heavily on borrowing, leading to high-interest costs or increased debt, which further strains the company's finances.
4. Declining Service Quality: Overtrading can cause operational inefficiencies, leading to delays in fulfilling orders or a decline in the quality of products or services as the company struggles to manage increased demand.
5. Risk of Insolvency: If the business cannot manage the financial stress, it risks insolvency. For example, where it becomes unable to meet its short-term obligations, such as paying creditors or employees.

A common situation occurs in retail when a business takes on a large number of orders without sufficient stock or cash reserves to fulfil those orders, leading to delays, missed payments to suppliers, and financial instability.

Effective management of cash flow, maintaining adequate working capital, and carefully planning growth are crucial strategies to avoid overtrading.