Days Sales Outstanding (DSO) Calculator
How many days, on average, customers take to pay you: unpaid invoices divided by credit sales over the period.
- Days sales outstanding
- —
- Average credit sales per day
- —
Your numbers stay in your browser — this page sends nothing to any server. Results are estimates for planning, not financial or tax advice.
$12
Want this as a spreadsheet?
Invoice Register & Receivables Aging — Every invoice, payment, balance and days overdue, with aging buckets and customer totals.
See what's included