What Is Accounts Payable?
Accounts payable (AP) is the mirror image of accounts receivable: when a supplier ships goods on credit terms, the buyer records the obligation as a payable until the invoice is settled. It sits in current liabilities because payment is typically due within 30 to 90 days.
AP arises naturally from accrual accounting, since the expense or inventory is recorded when the goods arrive, not when the cash goes out. One company's accounts payable is its supplier's accounts receivable.
How It Works
Every day a company delays paying its suppliers, it holds onto cash it would otherwise have spent, which is why payables are often described as interest-free financing. Analysts measure this with days payable outstanding: DPO = (Accounts Payable / COGS) x 365.
There is a balance to strike, though. Stretching payments too far can strain supplier relationships or forfeit early-payment discounts, while large companies with bargaining power routinely negotiate longer terms to improve their cash position.
Example
A grocery chain buys $36.5 million of goods during the year and carries an average accounts payable balance of $5 million, so DPO is ($5,000,000 / $36,500,000) x 365 = 50 days. Because it sells the groceries to shoppers for cash within about two weeks, it collects from customers more than a month before paying its suppliers, generating negative working capital that funds the business.
Why It Matters
Payables are a core lever of working capital management: an increase in accounts payable is a source of cash on the cash flow statement, since the company kept money it owed. Businesses that collect quickly and pay slowly can grow while consuming very little cash.
In interviews, knowing that rising payables boost operating cash flow, the exact opposite of rising receivables, shows you understand how working capital connects the balance sheet to the cash flow statement.
