There are many opinions concerning methods for measuring the efficiency of collecting A/R. In this article, we will discuss the most common method for calculating and measuring the effectiveness of your organization's A/R collections.
Why Measure Collection Effectiveness?
Most organizations do not measure it in a controlled and constant way. They usually do not even compare it to previous results. In fact, most organizations do not really know if their collections have become better or worse.
Measuring collection efficiency has some distinct advantages:
DSO — Days Sales Outstanding
The most common way to measure the effectiveness of the organization's collection.
What is DSO? DSO is a calculation that measures the average days it takes for an organization to collect its revenues.
How to calculate DSO:
DSO = (Total A/R ÷ Total Credit Sales) × Duration in Days
Example: In 2015 you made sales at $10 million. At the end of the year, there are still unpaid invoices totaling $1.2 million.
DSO = ($1,200,000 ÷ $10,000,000) × 365 = 43.8 days
What is a "good" DSO? The rule of thumb for normal DSO is lower than 45 (when payment terms are net+30), but you should compare your DSO score to similar organizations (in terms of industry, size, and location), as well as compare your current DSO to previous results.
ADD — Average Days Delinquent
The DSO alone is not enough. To get a clearer picture, you need ADD — the average number of days the payment is made after the invoice due date.
First, calculate Best DSO:
Best DSO = (Current A/R ÷ Total Credit Sales) × Duration in Days
Example: Current (non-delinquent) A/R = $800,000
Best DSO = ($800,000 ÷ $10,000,000) × 365 = 29.2 days
Then calculate ADD:
ADD = DSO − Best DSO = 43.8 − 29.2 = 14.6 days
Analyzing DSO and ADD Together
Tracking your ADD alongside the DSO will provide a rich, full picture about your organization's collecting efficiency and about the ability to turn Accounts Receivable into cash.