Days Sales Outstanding (DSO)
A measure of the average number of days it takes to collect payment after a sale.
Definition
Days Sales Outstanding (DSO) is a financial metric that measures how long it takes, on average, to collect payment from customers after a sale is made. It's calculated by dividing accounts receivable by total credit sales, then multiplying by the number of days in the period.
DSO is one of the most important cash flow indicators for any business that extends credit to customers. A lower DSO means you're collecting payments faster, which improves cash flow and reduces the risk of bad debts. A rising DSO might indicate collection problems, changing customer payment behaviors, or overly generous credit terms.
Why It Matters
DSO directly impacts your business's cash flow and working capital needs. If your DSO is 60 days, you're essentially financing two months of sales for your customers. For a business with $100,000 in monthly sales, that's $200,000 tied up in receivables that could otherwise be used for operations, growth, or reducing debt.
Tracking DSO over time helps you spot trends before they become problems. If DSO is creeping upward, you may need to tighten credit policies, improve collection processes, or offer incentives for faster payment. Industry benchmarks help you understand whether your DSO is competitive.
Examples
- 1
A consulting firm with $300,000 in receivables and $100,000 monthly sales has a DSO of 90 days—concerning if their terms are Net 30.
- 2
A SaaS company tracks DSO monthly and notices it rising from 25 to 35 days, triggering a review of their dunning process.
- 3
A distributor uses DSO by customer segment to identify which client types pay slowest and adjust credit terms accordingly.
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