Accounts Payable Days Calculator

Paying suppliers too early drains working capital. Paying too late damages vendor relationships and triggers late fees. Accounts payable days — also called Days Payable Outstanding (DPO) — is the metric that tells you how long your business holds cash before settling supplier invoices. According to Dun & Bradstreet's industry benchmarking data, median DPO varies from 25 days in retail to over 55 days in manufacturing and construction. Companies that manage DPO strategically often negotiate 30-to-60-day net terms specifically to fund operations with supplier credit rather than bank debt. A DPO that is too low signals you are paying early without earning early payment discounts. A DPO that is too high relative to your industry may indicate cash flow problems that vendors will eventually price into their terms.

This calculator computes Accounts Payable Days (Days Payable Outstanding) for a business. Enter your ending accounts payable balance, cost of goods sold (COGS) or total purchases for the period, and the number of days in the period (typically 365 for annual, 90 for quarterly). The calculator returns your DPO, average daily purchases, and an interpretation of whether your payment timing is below, within, or above your industry norm. Use it to benchmark payment efficiency, plan cash flow, and analyze vendor payment strategy.