How do you calculate days sales outstanding (DSO)?

Discover the formula and methodology for calculating Days Sales Outstanding (DSO) to assess how efficiently a company collects payments from its customers.


Days Sales Outstanding (DSO), also known as Days Receivable, is a financial metric that measures the average number of days it takes for a company to collect payment from its customers after a sale. DSO is a key indicator of a company's accounts receivable management and its ability to convert credit sales into cash promptly. A lower DSO typically indicates more efficient receivables management.

To calculate the Days Sales Outstanding (DSO), you can use the following formula:

DSO = (Accounts Receivable / Total Credit Sales) x Number of Days in the Period

Here's a breakdown of the components used in the formula:

  1. Accounts Receivable: This represents the total amount of money owed to the company by its customers for goods or services that have been delivered but not yet paid for. Accounts receivable is a balance sheet item.

  2. Total Credit Sales: This is the total value of sales made on credit during a specific period, such as a month or a quarter. It represents the revenue generated from credit transactions.

  3. Number of Days in the Period: This is the time frame for which you want to calculate DSO, typically expressed in days (e.g., 30, 60, or 90 days).

To calculate DSO, first, find the average accounts receivable during the selected period by adding the accounts receivable at the beginning and end of the period and dividing by 2:

Average Accounts Receivable = (Beginning Accounts Receivable + Ending Accounts Receivable) / 2

Then, divide the average accounts receivable by the total credit sales during the same period and multiply the result by the number of days in the period:

DSO = (Average Accounts Receivable / Total Credit Sales) x Number of Days in the Period

Interpreting the Days Sales Outstanding (DSO):

  • A lower DSO indicates that a company is collecting payments from customers more quickly, which is generally a positive sign of efficient accounts receivable management.

  • A higher DSO suggests that the company takes a longer time to collect payments from customers, potentially indicating issues with credit policies, collection efforts, or customer payment behavior.

  • DSO should be evaluated in comparison to industry benchmarks and historical performance to assess whether the company's accounts receivable management is improving or deteriorating.

  • Reducing DSO can improve cash flow and working capital, but it should be balanced with maintaining good customer relationships and sales growth.

  • A high DSO may also indicate an increased risk of bad debts if customers delay payments for an extended period.

In summary, Days Sales Outstanding (DSO) is a valuable metric for assessing a company's ability to collect payments from customers promptly. By monitoring and managing DSO effectively, a company can improve its cash flow and working capital position, which is essential for financial stability and growth.

Calculating Days Sales Outstanding (DSO) for Effective Receivables Management.

Days sales outstanding (DSO) is a financial metric that measures the average number of days it takes a company to collect payment from its customers for goods or services sold on credit. It is calculated by dividing accounts receivable by the average daily sales for a given period of time.

DSO = Accounts receivable / Average daily sales

Accounts receivable is the amount of money that customers owe the company for goods or services that have been delivered but not yet paid for. Average daily sales is calculated by dividing total sales for a given period of time by the number of days in the period.

The DSO metric is important because it can help businesses to assess the effectiveness of their receivables management practices. A lower DSO indicates that the business is collecting payments from its customers more quickly, which can improve cash flow and reduce the risk of bad debts.

How to use DSO to improve receivables management

Businesses can use DSO to identify areas where they can improve their receivables management practices. For example, if a business has a high DSO, it may be due to factors such as:

  • Slow payment terms
  • Inefficient billing procedures
  • Difficult-to-collect accounts

Once the business has identified the areas where it can improve, it can take steps to address them. For example, the business may:

  • Offer shorter payment terms
  • Implement more efficient billing procedures
  • Pursue difficult-to-collect accounts more aggressively

By taking steps to improve its DSO, a business can improve its cash flow and reduce the risk of bad debts.

Here are some additional tips for effective receivables management:

  • Send invoices promptly and accurately. This will help to ensure that customers receive their invoices on time and that they are correct.
  • Offer early payment discounts. This can encourage customers to pay their invoices more quickly.
  • Follow up on late payments promptly. This shows customers that the business takes its receivables seriously and that it is willing to take action to collect late payments.
  • Use a credit management system. This can help businesses to track their receivables and to identify potential problems early.

By following these tips, businesses can improve their DSO and their overall financial health.