Accounts receivable (AR) is the total amount currently owed to your business by clients who've been invoiced but haven't paid yet. It's easy to treat as a background number — it's not cash yet, so it's tempting to not think of it as real money. That's exactly why it deserves deliberate attention.
Why AR is worth tracking on its own
Revenue and AR can tell very different stories. A business can show strong revenue growth while its AR balance grows even faster — meaning an increasing share of that "revenue" is money that hasn't actually arrived yet. Watching AR specifically, separate from revenue, is what catches that pattern before it becomes a cash flow problem.
The core metrics
- Days Sales Outstanding (DSO) — the average number of days it takes to collect payment after a sale. Rising DSO over time is one of the earliest, clearest signals that collection is slowing down.
- AR turnover — how many times per period you collect your average receivables. Higher turnover means faster collection relative to how much is typically owed to you.
- Invoice aging — receivables broken down by how overdue they are (0-30 days, 31-60, and so on), showing not just how much is owed but how stale it's getting.
Our DSO calculator, AR turnover calculator, and AR aging calculator calculate each of these directly.
What healthy AR looks like
There's no universal healthy number — it depends heavily on your typical payment terms and industry. What matters more than any single snapshot is the trend: DSO holding steady or improving, aging skewed toward the newer buckets rather than accumulating in 90+ days, and AR growing roughly in proportion to revenue rather than outpacing it.
Managing it, not just measuring it
Tracking these numbers only has value if it changes what you do. Rising DSO or an aging report skewing older is the signal to review your payment terms (see setting payment terms), tighten your follow-up process (see invoice follow-up), or reconsider extending credit to clients with a consistently slow payment history.
Accounts receivable isn't a problem to solve once — it's a number worth checking on a regular cadence, the same way you'd check cash in the bank.