The formula
Accounts receivable turnover answers one question: how many times a year do you collect everything your customers owe you. Divide net credit sales by average accounts receivable. A turnover of 4.00x means customers pay you four times a year, on average, and the money sits in receivables for 91.25 days between sales.
Step 1 — Find the net credit sales
Start with the net credit sales: the sales made on credit in the period, after returns and allowances, from the income statement. Only CREDIT sales count — cash sales are excluded, because cash is already collected. A shop that sells half for cash and half on credit counts only the credit half. On the worked example the net credit sales are $1,200,000.00.
Step 2 — Find the average accounts receivable
Now find the average accounts receivable: the money customers still owe you, from the balance sheet. Average accounts receivable is (opening receivables + closing receivables) ÷ 2 — the receivables at the start plus the receivables at the end, divided by two. On the worked example the average accounts receivable is $300,000.00.
Step 3 — Divide the sales by the receivables
Divide the net credit sales by the average accounts receivable: how many times the receivables turn over in the period. On the worked example it is $1,200,000.00 ÷ $300,000.00 = 4.00x.
Step 4 — Work out the days to collect
Divide the days in the period by the turnover to get the days to collect — how long, on average, a dollar of credit sales waits before it is paid. On the worked example it is 365 ÷ 4.00 = 91.25 days. The days to collect is the same number as days sales outstanding (DSO) — the two are the same idea in different units.
Step 5 — Work out the receivables the target needs
Divide the net credit sales by the target turnover. For a 5.00x target, the average accounts receivable needed is $1,200,000.00 ÷ 5 = $240,000.00. The largest whole-dollar average accounts receivable for the turnover to stay at or above 4.00x is $300,000 — at $300,001 the receivables are $1 over the $300,000 allowed, and the unrounded turnover is 3.999987, which displays as 4.00x after rounding.
Step 6 — Work out the sales the target needs
Multiply the average accounts receivable by the target turnover. For a 5.00x target, the net credit sales needed are $300,000.00 × 5 = $1,500,000.00. That is the smallest whole-dollar net credit sales for the turnover to reach 5.00x on $300,000 of receivables — at $1,499,999 the sales are $1 short of the $1,500,000 needed, and the unrounded turnover is 4.999997, which displays as 5.00x after rounding.
Step 7 — Check the result against the 5x typical line and the 3x slow line
A turnover of 5 to 10x a year is typical for many businesses, about 36 to 73 days to collect, and a turnover below about 3x — over 120 days to collect — usually signals a collections problem worth chasing. On the worked example the turnover is 4.00x, so the business sits just below the typical line. The largest whole-dollar average accounts receivable for the turnover to stay at or above 6.00x is $200,000, and to stay at or above 8.00x it is $150,000.
Three worked examples
The headline example: $1,200,000.00 of net credit sales and $300,000.00 of average accounts receivable over 365 days. The turnover is $1,200,000.00 ÷ $300,000.00 = 4.00x, the days to collect are 91.25 days, the receivables needed for the 5.00x target are $240,000.00, and the sales needed are $1,500,000.00. With $600,000.00 of sales instead, the turnover is 2.00x; with $150,000.00 of receivables, 8.00x; with $1,800,000.00 of sales, 6.00x; over a 90-day period, 4.00x and 22.50 days; with $100,000.00 of receivables, 12.00x; with $240,000.00 of receivables, 5.00x; with $0.00 of sales, 0.00x — nothing sold on credit. Use the accounts receivable turnover calculator for your own numbers.
Two reverses to check your answer
The largest whole-dollar average accounts receivable for the turnover to stay at or above 4.00x is $300,000 — at $300,000 the turnover is 4.00x; at $300,001 the receivables are $1 over the $300,000 allowed, with an unrounded turnover of 3.999987, which displays as 4.00x after rounding. The smallest whole-dollar net credit sales for the turnover to reach 5.00x is $1,500,000 — at $1,500,000 the turnover is 5.00x; at $1,499,999 the sales are $1 short of the $1,500,000 needed, with an unrounded turnover of 4.999997, which displays as 5.00x after rounding.
What average accounts receivable is, and why it is an average
Average accounts receivable is (opening accounts receivable + closing accounts receivable) ÷ 2: the receivables at the start plus the receivables at the end, divided by two. A single end-of-period snapshot misleads: a business that bills heavily in December and collects in January would show huge receivables in December and small ones in February, and neither snapshot is the year. The average is steadier, because receivables swing through the year.
What a high turnover means — and what a low turnover means
A high turnover means customers pay fast and little cash is tied up in unpaid invoices. A low turnover means slow payers, more cash stuck in receivables, and a higher risk of bad debts. Retail businesses often run higher because most sales are cash; construction and manufacturing often run lower because invoices are large and payment terms are long. A turnover of 5 to 10x a year is typical for many businesses; below about 3x — over 120 days to collect — usually signals a collections problem worth chasing.
What to do when the turnover is low
A turnover below about 3x means each dollar of credit sales takes more than four months to come back. Lift it by invoicing the day the work is done, offering a small early-payment discount, tightening credit terms for slow payers, and chasing overdue invoices weekly instead of monthly. The net credit sales needed for a 5.00x turnover are $1,500,000.00 — every dollar of credit sales above that line pulls the turnover up.
How accounts receivable turnover differs from inventory turnover, days sales outstanding and days payable outstanding
Inventory turnover divides cost of goods sold by average inventory: it tests how fast STOCK sells, not how fast customers pay. Days sales outstanding is the same idea in days: it tests how fast customers pay you, and 365 ÷ turnover is the DSO. Days payable outstanding is the mirror image: it tests how fast you pay suppliers, while accounts receivable turnover tests how fast customers pay you. The cash conversion cycle combines all three into the full time from paying for stock to collecting the cash. Accounts receivable turnover is the collections test; inventory turnover is the stock test; days payable outstanding is the payables test. See the inventory turnover calculator and the days sales outstanding calculator, and the guide to calculating days sales outstanding.