The accounts receivable turnover ratio tells you how many times per year your business collects its average outstanding receivables – in plain terms, how efficiently you are turning invoices into cash.
A higher ratio means you are collecting faster. A lower one means cash is sitting in unpaid invoices for longer, which ties up working capital and increases your exposure to bad debt.
The Formula
Accounts Receivable Turnover = Net Credit Sales / Average Accounts Receivable
Where:
- Net credit sales are your total sales made on credit (excluding cash sales), minus any returns or allowances, over the period you are measuring.
- Average accounts receivable is the sum of your receivables at the start and end of the period, divided by two.
Most businesses calculate this annually, but you can also run it quarterly to spot trends earlier.
A Worked Example
Claire runs a digital marketing agency in Bristol with the following annual figures:
- Net credit sales for the year: £960,000
- Accounts receivable at start of year: £95,000
- Accounts receivable at end of year: £105,000
Average Accounts Receivable = (£95,000 + £105,000) / 2 = £100,000
AR Turnover = £960,000 / £100,000 = 9.6
This means Claire’s business collects its average receivables roughly 9.6 times per year, or approximately every 38 days.
That is a reasonable result for a B2B services firm, though there is room for improvement if her standard terms are 30 days.
How to Interpret the Number
Higher is better. A ratio of 12 means you collect your average receivables every month. A ratio of 4 means it takes roughly three months, which puts significant strain on cash flow. Context matters – the ratio should be read alongside your payment terms and industry norms.
Here is a rough guide for a typical UK SME:
| AR Turnover Ratio | Approximate Collection Period | Interpretation |
|---|---|---|
| 12+ | ~30 days or less | Excellent – collecting within standard terms |
| 8 to 12 | 30 to 45 days | Solid – minor slippage beyond terms |
| 5 to 8 | 45 to 73 days | Cash is getting stuck – investigate |
| Below 5 | 73+ days | Serious collection problem |
The Relationship Between AR Turnover and DSO
Accounts receivable turnover and Days Sales Outstanding are two sides of the same coin. They measure the same thing – how quickly you collect – but express it differently.
The conversion is simple:
DSO = 365 / AR Turnover Ratio
AR Turnover = 365 / DSO
Using Claire’s example:
DSO = 365 / 9.6 = 38 days
And in reverse: if you already know your DSO is 38 days, your AR turnover is 365 / 38 = 9.6.
So why do both metrics exist?
When AR Turnover Is More Useful
AR turnover is the preferred metric in financial analysis and lending decisions. Banks and investors work in ratios because they make it easy to compare businesses of different sizes. It is also the standard format in company accounts, so your accountant will be comfortable with it.
When DSO Is More Useful
DSO is more intuitive for day-to-day management. “Our customers take 38 days to pay” is easier to grasp than “we collect our receivables 9.6 times a year.” When chasing late payers, DSO gives you a number you can compare directly against your payment terms. Check yours with the DSO Calculator.
Improving Your AR Turnover Ratio
Since AR turnover is the inverse of DSO, everything that reduces your DSO will improve your AR turnover ratio:
- Invoice promptly. Every day between delivering the work and sending the invoice is a day added to your collection period.
- Make payment terms clear. State the due date on every invoice, not just “30 days.”
- Follow up early. A polite reminder a few days before the due date is more effective than a stern chase a month after it.
- Make it easy to pay. Offer multiple payment methods. If your customer has to post a cheque, you are adding days.
- Review your credit terms. Not every customer deserves 60-day terms. Match your terms to the customer’s payment history and the value of the relationship.
What to Watch For
A declining AR turnover ratio over successive quarters means your receivables are growing faster than your sales – collection is slowing. The trend matters more than any single number.
Equally, a very high ratio is not always positive. If your AR turnover is significantly above competitors, you might be offering unusually strict terms that cost you sales.
The Bottom Line
The accounts receivable turnover ratio is a reliable measure of how well your business converts invoices into cash. Track it alongside DSO – they tell the same story in different units. If you are not sure where you stand, start with the DSO Calculator and convert using the formula above.
This article is for general information only and does not constitute financial advice. Seek professional advice for decisions specific to your business.