Accounts Payable Turnover Calculator

Accounts payable turnover measures how many times your business pays off its average suppliers balance during a period, showing how quickly you settle trade credit. This calculator works it out from your cost of goods sold (COGS) and your average accounts payable balance, dividing COGS by average payables to give the turnover ratio. It also converts that ratio into the average payment period in days, by dividing 365 by the turnover, so you can see roughly how long you take to pay suppliers. A higher turnover and a shorter payment period mean you pay quickly, which can build supplier goodwill and unlock early settlement discounts, while a lower turnover means you hold cash longer before paying. Both have trade offs: paying slowly improves your own cash flow but can strain relationships and signal financial stress if it drifts well beyond agreed terms. Business owners, accountants and lenders in New Zealand use this ratio to gauge payment discipline and to compare it with the credit terms suppliers offer. For a fair result, use COGS or total credit purchases rather than total expenses, and use an average of opening and closing payables when the balance moves a lot through the year. Compare the payment period this implies with your standard terms, for example 30 days, since a period well above that suggests you are stretching suppliers. It is also worth tracking the trend across several periods, because a steadily falling turnover can indicate tightening cash. Read this ratio alongside accounts receivable turnover and days inventory outstanding to build a complete view of your working capital cycle and how cash flows through the business.

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Cost of goods sold ($)

Average accounts payable ($)

6.67x

Payable turnover

Average payment period54.8 days

AP turnover = COGS / average payables. Days = 365 / turnover. Estimate only, not financial or tax advice.

How it works

Turnover divides cost of goods sold by average accounts payable to count how many times payables are settled in the year. Dividing 365 by that turnover gives the average days to pay. Lower turnover and more days mean slower payment to suppliers.

Worked example

With COGS of $600,000 and average payables of $90,000, turnover is 6.67 times. The payment period is 365 divided by 6.67, which is 54.8 days.

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Frequently asked questions

Is a high AP turnover good?

A high turnover means you pay suppliers quickly, which builds goodwill and can earn early payment discounts. However, paying too fast uses cash that could fund operations. The best level balances strong supplier terms with healthy cash flow.

Should I use COGS or purchases?

Credit purchases are the most precise base, but cost of goods sold is a common and reasonable proxy when purchases are not readily available. Whichever you choose, keep it consistent across periods. Avoid using total expenses, which include items unrelated to suppliers.

How is the payment period found?

Divide the days in the year, usually 365, by the turnover ratio. This converts the number of payment cycles into an average number of days to pay. A higher figure means you take longer to settle.