
Days Sales Outstanding (DSO) is a financial metric that measures how long it takes for a company to collect payment from its customers.
DSO is calculated by dividing the average accounts receivable by the average daily sales.
A lower DSO indicates that a company is collecting payments from its customers more efficiently.
In general, a DSO of 30 days or less is considered good, while a DSO of 60 days or more is considered bad.
This metric is important because it can help businesses identify areas where they can improve their cash flow and reduce the risk of bad debt.
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What Is It?
Days Sales Outstanding, or DSO, is a metric that quantifies the average time it takes for a company to convert credit sales into cash. This average time can be as short as 30 days or longer.
A DSO of 30 days means a company collects payments, on average, within a month after invoicing customers. This is a relatively prompt payment cycle.
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DSO is also known as days sales in accounts receivable or debtor days, highlighting its focus on accounts receivable management. This metric is a vital tool for assessing a business's cash flow efficiency.
A low DSO reflects prompt payments, while a high DSO may indicate issues with credit policies or customer payment habits. This can have significant implications for a company's liquidity and working capital.
In accounting and finance, DSO is used to monitor cash inflows, ensure liquidity, and align payment terms with industry standards. Regular calculation helps reduce bad debt risks and improve cash flow management.
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Calculating Days Sales Outstanding
Calculating Days Sales Outstanding is a straightforward process that requires just a few pieces of information. You'll need to know the total number of accounts receivable during a given period and the total dollar value of credit sales during the same period.
To calculate DSO, you'll divide the total accounts receivable by the total credit sales, then multiply the result by the number of days in the period. This is the basic formula for DSO, which can be expressed as: DSO = (Accounts Receivable/Net Credit Sales) x Number of days.
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For example, if a company has $1,050,000 in accounts receivable and $1,500,000 in credit sales over a 92-day period, their DSO would be calculated as follows: DSO = ($1,050,000 / $1,500,000) x 92 days.
You can also calculate DSO for a specific month or quarter by using the same formula. For instance, if a company has $20,000 in credit sales and $16,000 in accounts receivable for a month, their DSO would be: DSO = ($16,000 / $20,000) x 30 days.
It's worth noting that cash sales are not included in the calculation of DSO, as they are considered to have a DSO of 0 since they are collected upfront.
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Interpreting Days Sales Outstanding
Interpreting Days Sales Outstanding is crucial to understand the effectiveness of your accounts receivable processes. A high DSO indicates a company is selling products or services on credit but takes a long time to collect payments from customers, leading to cash flow challenges.

A low DSO, on the other hand, reflects the company's ability to collect its accounts receivable quickly, ensuring a steady cash flow to support business growth. However, what constitutes a "good" DSO varies depending on industry norms and practices.
While DSO is a valuable metric, it's most effective when used as part of a broader analysis. Monitoring DSO trends over time can reveal patterns in customer payment behavior and help identify potential cash flow issues before they become critical.
To interpret DSO correctly, consider billing terms, benchmarking against industry standards, and more. Companies often misinterpret DSO, leading to inaccurate performance measurement.
Here are some key factors to consider when interpreting DSO:
A high DSO can lead to cash flow problems, while a low DSO is more favorable to a company's collection process. Understanding what constitutes high or low DSO is just the beginning; now, you must interpret it by considering these factors and more.
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Importance and Benefits
Days sales outstanding (DSO) is a crucial metric for measuring the liquidity of a company's current assets. A lower DSO value reflects high liquidity and cash flow measurements.
A DSO value below 45 is considered good, and tracking the number over time can create an incentive for the payments department to stay on top of unpaid invoices. If the number is climbing, there may be something wrong in the collections department, or the company may be selling to customers with less than optimal credit.
DSO also offers insights into customer payment behavior and relationships, and the overall performance of the accounts receivable teams. By tracking DSO proactively, your AR team will have a reliable pulse on how the company is maintaining these priorities.
Here are some key benefits of tracking DSO:
- It tells you about the effectiveness of your collections teams
- It gives your AR teams insight into customer creditworthiness and satisfaction
- It helps identify and flag customers that are weighing the business down by not paying promptly
- It provides a reliable pulse on how the company is maintaining customer satisfaction, customers' creditworthiness, and the effectiveness of the collections team
A modern AR automation platform can be a business' lifeline when it comes to staying on top of DSO and maintaining control of the cash position.
Factors Affecting and Limitations
Understanding the factors that affect Days Sales Outstanding (DSO) is crucial for optimizing cash flow and improving financial performance. Five critical factors that directly impact DSO are key to making informed decisions.
Every transaction needs to be linked to an invoice for the calculation of DSO to be accurate, which can be automated with AR automation cash application. This means that overpayments or credit sales notes need to be linked to an invoice.
Here are some limitations of DSO:
- DSO only considers credit transactions and does not consider cash sales.
- DSO cannot be used to compare against companies with vastly different credit to cash ratios.
- Seasonality can make identifying trends in DSO difficult.
- DSO is best used when comparing performance against businesses within your industry.
- DSO is influenced by revenue, meaning decreases in value might not actually be indicative of improved collections efforts.
Factors Affecting
Understanding the key factors that influence Days Sales Outstanding (DSO) is crucial for optimizing cash flow and improving financial performance. Here are five critical factors that directly impact DSO.
Inaccurate or delayed invoices can contribute to a longer DSO. Small errors, such as incorrect amounts or missing information, can cause delays in payment processing.
A DSO below 45 is generally considered low, but what qualifies as high or low also depends on the type of business. Different industries have markedly different average DSOs.
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Cash sales are not included in the computation because they are considered a zero DSO – representing no time waiting from the sale date to receipt of cash.
The number of days in the period being measured also affects DSO. To calculate DSO, you multiply the result of dividing accounts receivable by net credit sales by the number of days in the period.
Ensuring that invoices are clear, accurate, and sent promptly can reduce disputes and speed up collections, helping keep DSO in check.
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Limitations of
Limitations of Days Sales Outstanding are essential to consider when using this metric to gauge a business's efficiency. It's crucial to compare companies within the same industry, with similar business models and revenue numbers, to get accurate results.
Comparing companies across different industries and sizes can be misleading due to varying DSO benchmarks and targets. This is because DSO only considers credit transactions and does not take into account cash sales.
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DSO calculation also has its limitations, such as requiring every transaction to be linked to an invoice, excluding invoice disputes, and not weighing all invoices equally. For instance, an invoice for $100,000 has a bigger impact than an invoice for $100.
Here are some of the key limitations of DSO:
- Every transaction needs to be linked to an invoice.
- Invoice disputes are not excluded.
- Not all invoices weigh the same.
Additionally, DSO is influenced by revenue, making it difficult to determine if changes in DSO are due to improved collections efforts or increased sales. Seasonality can also make identifying trends in DSO challenging.
To accurately track DSO, it's essential to monitor the invoicing process and automate it using tools like EIPP. This helps prevent misjudging DSO and setting unrealistic targets.
Improving Days Sales Outstanding
A lower DSO means a shorter cash conversion cycle, more opportunities to invest, and overall better working capital management. This can quickly improve your runway, as going from an 80% to 140% collection rate can double your cash runway in a few months.
To reduce DSO, explore 13 proven strategies to enhance your collections and improve cash flow efficiency. These include accelerating payments, improving operational efficiency, and strengthening cash management.
Here are a few key tactics to consider: Collaborating with Credit & Sales teams to align payment terms effectively.Rigorously proofreading the invoicing process to minimize errors and expedite invoice delivery.Establishing open communication with Credit & Collections teams regarding customer payment terms and delinquent accounts.
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Use Excel Template
Using an Excel template can simplify your DSO calculations and improve cash flow management. The free template available is easy to use and provides accurate calculations.
You can gain strategic insights by using this template, which helps in making informed decisions about your business.
Here are the benefits of using the DSO calculation Excel template:
- Easy-to-use template
- Accurate calculations
- Gain strategic insights
How to Improve DSO
Improving Days Sales Outstanding (DSO) requires a strategic approach. A high DSO can indicate inefficient collections processes, leading to cash flow problems.

To calculate DSO, divide the total accounts receivable for a given period by the total credit sales for the same period, and multiply the result by the number of days in the period. This calculation provides a clear picture of your company's payment collection efficiency.
A low DSO is more favorable to a company's collection process, suggesting efficient collection processes and strong customer relationships. However, a high DSO may signal inefficiencies or payment issues.
There are several ways to improve DSO, including:
- Offering discounts to customers who pay early
- Automating payment reminders
- Improving operational efficiency
- Strengthening cash management
- Investing in an automated system
By implementing these strategies, you can reduce your DSO and improve your cash flow management. A lower DSO means a shorter cash conversion cycle, more opportunities to invest, and overall better working capital management.
Here are some specific tactics to consider:
- Offer incentives such as discounts or coupons to early-paying customers
- Use an automated platform to communicate with customers and run email campaigns to share incentives
- Ensure there's a penalty policy for late-paying customers
- Automate payment reminders and formalize collection processes
- Monitor payment status and customize invoices for every customer
By implementing these tactics, you can improve your DSO and maintain a healthy cash flow. A lower DSO is essential for businesses, especially small to medium-sized businesses, as it helps to reduce problems related to paying operational expenses and allows for reinvestment in the business.
Industry and Average

The Days Sales Outstanding (DSO) can vary significantly across different industries. The median DSO across industries is 56 days, but some industries get paid faster than others.
In traditional sectors like Office & Facilities Management and Consulting, DSOs are notably higher, with businesses often operating on 90-day payment terms. This can make it challenging for companies to enforce these terms.
On the other hand, Clothing, Accessories & Home businesses experience the lowest median DSO across all industries. This may be because they prioritize prompt payment to maintain physical inventory.
Organizations in the top 25th percentile in Office & Facilities Management manage to achieve a DSO of 78 days, ensuring payments are received well within their terms. This is a good benchmark to aim for if you're in this industry.
Businesses in the Clothing, Accessories & Home industry can more easily enforce payment through credit exposure, as customers won't receive their next batch of products until payment is made. This is a smart strategy to implement if you're in this industry.
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Common Misinterpretations and Additional Metrics
Senior management often misinterprets DSO, particularly in medium-sized businesses, overlooking opportunities to leverage it for optimizing business processes.
Judging DSO without knowing the payment terms can lead to incorrect conclusions. For example, if Colgate's payment term is 30 days, their DSO of 34.09 indicates room for improvement, but if it's 60 days, their collections efforts are in the right place.
To get a clear picture, consider other factors alongside DSO. This includes metrics like AR turnover ratio, expected cash collections, and average collection period.
Here are some additional metrics to analyze alongside DSO:
- AR turnover ratio
- Expected cash collections
- Average collection period
- Days sales outstanding
- Collection effectiveness index
- Average days delinquent
- Number of revised invoices
- Bad debt
- Percentage of high-risk accounts
- Staff productivity
- Customer satisfaction
Common Misinterpretations
Senior management often misinterprets DSO, particularly in medium-sized businesses, overlooking opportunities to leverage it for optimizing business processes.
Inaccurate or delayed invoices can contribute to a longer DSO, with small errors causing delays in payment processing.
Judging DSO without knowing the payment terms is a common mistake, as it may not accurately reflect the company's collections efforts.
Monitoring the invoicing process is crucial to prevent misjudging DSO, as unpaid invoices can be a source of stress and errors can undermine customer experience.
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Companies should do a customer-wise analysis of invoice acknowledgment to understand whether customers have received their invoices on time, and dissect DSO evaluation based on faulty invoices and late invoices.
A wrong approach to judge DSO can lead to setting unrealistic targets by senior management, which can result in an improper action plan for A/R operations.
Additional Metrics to Analyize
Analyzing just the DSO can be misleading, as it doesn't give a complete picture of your accounts receivable. To get a clearer understanding, you should consider other factors.
Senior management should look out for error-prone areas that can be detected by analyzing additional metrics. This helps form an action plan to eliminate these errors.
No single metric can tell you the full story of your collections efforts. To get a comprehensive view, prioritize these KPIs:
- AR turnover ratio
- Expected cash collections
- Average collection period
- Days sales outstanding
- Collection effectiveness index
- Average days delinquent
- Number of revised invoices
- Bad debt
- Percentage of high-risk accounts
- Staff productivity
- Customer satisfaction
Inaccurate or delayed invoices can contribute to a longer DSO. This can be prevented by ensuring invoices are clear, accurate, and sent promptly.
Frequently Asked Questions
What is a good DSO ratio?
A good DSO ratio varies by industry, but generally, a DSO below 45 is considered low. Understanding industry-specific benchmarks is key to determining a healthy DSO for your business.
Is it better to have a higher or lower DSO?
A lower DSO is generally preferred, as it indicates timely payments and allows businesses to reinvest funds quickly. A DSO under 45 days is considered optimal for maintaining healthy cash flow
What is considered a high DSO?
A high DSO (Days Sales Outstanding) is typically 60+ days, indicating delayed customer payments. If your DSO exceeds this threshold, it may be worth investigating the cause and exploring solutions to speed up collections.
Sources
- https://www.investopedia.com/terms/d/dso.asp
- https://corporatefinanceinstitute.com/resources/accounting/days-sales-outstanding/
- https://upflow.io/blog/reduce-dso/calculate-dso
- https://www.highradius.com/resources/Blog/what-is-days-sales-outstanding-dso-and-how-to-use-it-for-optimizing-accounts-receivables-ar/
- https://www.versapay.com/resources/what-is-dso-and-why-is-it-the-lifeline-for-accounts-receivable
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