What Is Accounts Payable? Meaning, Entries and an Example

Accounts payable is the running total of bills a business has accepted and still has to pay. A supplier delivers the goods, sends an invoice with terms such as "net 30", and until the money leaves the bank that invoice is a payable. Corporate Finance Institute describes it as a short-term liability usually due within 30 to 90 days.

The phrase is used two ways, and it helps to know which one someone means. On the balance sheet, accounts payable is a number: what the company owes suppliers on a given date. Inside a company, accounts payable is a job: the people who receive invoices, check them, get them approved and pay them on time.

How accounts payable shows up in the books

Accounts payable goes up when a business receives a bill on credit and goes down when it pays. In double-entry bookkeeping, a credit to AP increases the liability and a debit reduces it. Two entries cover most of what happens:

• When the invoice is recorded: debit the expense or inventory account for what was bought, credit accounts payable.
• When the supplier is paid: debit accounts payable, credit cash.

The cost is recognized when the invoice is recorded, not when the cash goes out. Paying the bill lowers cash and the liability by the same amount; it doesn't add a second expense.

One invoice from receipt to payment

Say you order $10,000 of packaging. The supplier ships it with an invoice on terms of 2/10, net 30: take 2% off if you pay within 10 days, otherwise the full amount is due in 30. Here's how that invoice moves through AP, following the purchase-to-payment steps the Association for Financial Professionals lays out:

1. Order. A purchase order records the item, quantity and agreed price.
2. Receipt. Whoever takes delivery confirms what actually arrived.
3. Three-way match. AP compares the invoice with the purchase order and the receiving record. If the invoice bills for 1,000 boxes and only 900 arrived, it stops here until the difference is settled.
4. Record. Once it matches, the invoice goes on the books: debit inventory $10,000, credit accounts payable $10,000.
5. Approve. The invoice goes to the person allowed to approve that amount.
6. Pay. Paid by day 10, the bill is $9,800: debit accounts payable $10,000, credit cash $9,800, and the $200 discount is credited to inventory (or a purchase discounts account, depending on how your books are set up). Paid on day 30, it's debit AP $10,000, credit cash $10,000.

That $200 is worth more than it looks. Skipping a 2% discount to keep $9,800 for 20 more days works out to about 37% a year, using the formula discount ÷ (1 − discount) × (365 ÷ days paid early), here (2% ÷ 98%) × (365 ÷ 20), given in a QuickBooks guide from Dummies. If your line of credit costs less than that, borrowing to pay early is usually the cheaper choice.

The ratio people track: days payable outstanding

Days payable outstanding (DPO) is the average number of days a business takes to pay its suppliers. The AFP's glossary entry gives the formula as average accounts payable ÷ cost of goods sold × 365, and the related AP turnover ratio as net credit purchases ÷ average accounts payable, which is how many times a year the business pays off its average payables.

A business with an average of $150,000 in payables and $1.2 million in cost of goods sold for the year has a DPO of about 46 days ($150,000 ÷ $1,200,000 × 365). Whether that's good depends on the terms. If most suppliers give net 30, a 46-day DPO means bills are routinely paid late. If they give net 60, it means the business pays early and could hold its cash longer.

A higher DPO keeps cash in the business; a much higher one strains supplier relationships and can cost discounts or credit. Compare it with your own suppliers' terms before reading anything into it.

Accounts payable vs. accounts receivable, accrued expenses and notes payable

Accounts payable is easy to mix up with three neighbors. The difference usually comes down to who owes whom, whether a bill has arrived, and whether there's a formal loan.

Accounts payable vs. accounts receivable

They are the same invoice seen from opposite sides. When you owe a supplier $10,000, it's in your accounts payable and in the supplier's accounts receivable.

Accounts payable vs. accrued expenses

The test is whether the bill has arrived. CFI's comparison uses electricity as the example: power used in June with no bill by June 30 is estimated and booked as an accrued expense. Once the invoice comes in and is recorded, the amount owed is a payable.

Where accounts payable goes wrong

• Paying the same invoice twice. A supplier resends an unpaid invoice, or one copy comes by email and another by mail, and both get entered. The AFP lists duplicate payments, intentional or by mistake, among the main AP risks.
• Changing bank details on an email's say-so. A message that looks like a supplier asks you to send future payments to a new account. Business email compromise led to close to $2.8 billion in losses reported to the FBI in 2024, Nacha reports. Confirm any change by calling a number you already have on file, not one in the email.
• One person doing everything. The AFP recommends that vendor setup, invoice approval and payment authorization sit with different people, so no one can create a supplier and pay it.
• Recording on payment instead of receipt. Expenses land in the wrong month and the balance sheet understates what you owe.
• Missing discount windows. Invoices sit in an inbox past day 10, and the business pays full price without ever deciding to.