Calculate accounts receivable turnover ratio and days sales outstanding (DSO). Analyze collection efficiency, bad debt rate, and cash flow impact with industry benchmarks.
The Accounts Receivable Turnover ratio measures how efficiently a company collects payment from customers who purchased on credit. A higher ratio means faster collections. If your ratio is 10, you collect receivables about 10 times per year — roughly every 36.5 days (365 ÷ 10 = 36.5 DSO). If it's only 5, you're waiting about 73 days to get paid.
Days Sales Outstanding (DSO) is the inverse expression that most CFOs prefer: it tells you the average number of days between invoicing and payment. DSO below 45 days is generally healthy for most industries, while DSO above 75 days signals collection problems that can create serious cash flow pressures.
This calculator computes both metrics and shows the concrete cash flow impact of improving collections. Reducing DSO by just 5 days frees up working capital equal to 5 days' worth of credit sales — for a $5M/year business, that's nearly $70,000 of additional cash flow. The DSO target analysis shows exactly how much AR reduction is needed to hit specific collection goals, and the industry benchmarks help you understand where you stand relative to peers.
Cash is king, and slow-paying customers drain working capital. This calculator quantifies collection efficiency and shows exactly how much cash you can free by improving DSO — critical for any business extending credit.
This tool is designed for quick, accurate results without manual computation. Whether you are a student working through coursework, a professional verifying a result, or an educator preparing examples, accurate answers are always just a few keystrokes away.
Receivables Turnover = Net Credit Sales ÷ Average Accounts Receivable Average AR = (Beginning AR + Ending AR) ÷ 2 Days Sales Outstanding = 365 ÷ Receivables Turnover Bad Debt Rate = Bad Debt Expense ÷ Net Credit Sales × 100 Daily Credit Sales = Net Credit Sales ÷ 365
Result: Turnover: 14.29x — DSO: 25.6 days — Efficient collection
Average AR = ($300,000 + $400,000) ÷ 2 = $350,000. Turnover = $5,000,000 ÷ $350,000 = 14.29. DSO = 365 ÷ 14.29 = 25.5 days. Daily credit sales = $13,699. Reducing DSO by 5 days frees $68,493 in cash.
Use consistent units throughout your calculation and verify all assumptions before treating the output as final. For professional or academic work, document your input values and any conversion standards used so results can be reproduced. Apply this calculator as part of a broader workflow, especially when the result feeds into a larger model or report.
Most mistakes come from mixed units, rounding too early, or misread labels. Recheck each final value before use. Pay close attention to sign conventions — positive and negative inputs often produce very different results. When working with multiple related calculations, keep intermediate values available so you can trace discrepancies back to their source.
Enter the most precise values available. Use the worked example or presets to confirm the calculator behaves as expected before entering your real data. If a result seems unexpected, compare it against a manual estimate or a known reference case to catch input errors early.
It depends on industry and payment terms. If you offer Net 30 terms, a turnover of 12+ (DSO ≤ 30) is excellent. For Net 60 terms, 6+ (DSO ≤ 60) is on target. Generally: 12+ is excellent, 8-12 is good, 4-8 needs attention, below 4 is a red flag.
Common causes: (1) Lenient credit policies attracting slow payers, (2) Inadequate collection processes, (3) Disputes or billing errors delaying payment, (4) Customer financial distress, (5) Over-extension of credit to risky customers. Seasonal businesses may also have temporary DSO spikes.
Each day of DSO ties up one day's worth of credit sales in AR. For $5M annual credit sales: daily sales = $13,699. At 60 DSO = $822K tied up. At 30 DSO = $411K tied up. The 30-day reduction frees $411K in working capital — money that can pay suppliers, invest, or reduce borrowing.
The accurate formula uses NET CREDIT SALES (exclude cash, prepaid, and credit card sales — those collect immediately). Using total revenue inflates the ratio. If you can't separate credit from cash sales, total revenue works as an approximation but will show higher turnover than reality.
An estimated reserve for invoices that will never be collected. If you have $400K in AR and expect 10% to go bad, the allowance is $40K and net AR is $360K. This appears on the balance sheet as a contra-asset. Industries with high-risk customers (healthcare, B2B services) typically have higher allowance rates.
Tactics: (1) Offer early payment discounts (2/10 Net 30), (2) Invoice immediately at delivery, (3) Automate payment reminders, (4) Tighten credit approval for new customers, (5) Accept credit cards/ACH for faster settlement, (6) Follow up on overdue invoices within 5 days of due date. Use this as a practical reminder before finalizing the result.