Days Sales Outstanding (DSO) Calculator
Estimate Days Sales Outstanding (DSO) using receivables, credit sales, and period length, with an optional allowance adjustment for cleaner benchmarking.
For planning and benchmarking only; verify policy definitions and period alignment with your finance team.
Examples
- $2,400,000 receivables, $9,000,000 credit sales, 90 days, allowance blank => Adjusted receivables: $2,400,000.00 USD. Days Sales Outstanding: 24.00 days. Annualized receivables turnover: 15.21x.
- $3,100,000 receivables, $12,500,000 credit sales, 180 days, 2% allowance => Adjusted receivables: $3,038,000.00 USD. Days Sales Outstanding: 43.75 days. Annualized receivables turnover: 8.34x.
FAQ
Should I use total sales or only credit sales?
Use net credit sales, because cash sales do not create receivables and would distort DSO downward.
Can I use average receivables instead of ending receivables?
Yes. For smoother trend analysis, replace ending receivables with an average balance before entering the number.
Why include an allowance input?
Allowance-adjusted receivables can improve comparability when credit risk shifts meaningfully between periods.
Additional Information
- Result unit is days; turnover is shown as times per year using a 365-day convention.
- If allowance percent is blank, the calculator uses 0.00% by default.
- Use the same accounting scope for receivables and sales (entity, currency, and period).