Accounts receivable (AR) is the outstanding invoices a business is owed by customers, typically tracked as an asset on the balance sheet.
Why it matters in B2B collections
In B2B, AR is usually one of the largest current assets a company holds, and the slowest-moving. Every invoice issued on credit terms sits in AR until it is collected and applied, which is why the size, age, and quality of the AR ledger drive working capital, borrowing needs, and how confidently finance can forecast cash. Managing AR well is less about accounting and more about operations: consistent chasing, easy payment, fast dispute resolution, and clean reconciliation.
AR is not the same as revenue
Revenue is recognised when the obligation is met. AR is what remains uncollected from that revenue. A business can book a record quarter and still run out of cash, because the revenue is sitting in AR rather than in the bank. This is the gap that makes AR an operational problem rather than an accounting one: the income statement says the work is done, and the bank balance disagrees.
The aging bucket is the working view
AR is almost always read as an aging report: current, 1 to 30 days past due, 31 to 60, 61 to 90, and 90-plus. The shape matters more than the total. A ledger with a large balance concentrated in current is healthy. A smaller ledger with a heavy 90-plus tail is not, because collectability falls sharply the longer an invoice ages, and balances past 90 days often need escalation or a write-off decision rather than another reminder.
Quality of AR, not just size
Two ledgers of identical value can be worth very different amounts. Concentration matters: if a third of AR sits with one customer, the ledger carries that customer's credit risk. So does disputed balance, because a disputed invoice is not a collections problem at all, it is a resolution problem, and chasing it harder makes things worse. Separating genuinely late invoices from disputed and unapplied ones is usually the first useful thing a team can do with its ledger.
Accounts receivable: common questions
Is accounts receivable an asset or a liability?
What is a good accounts receivable balance?
What is the difference between accounts receivable and accounts payable?
Go deeper: How Finero runs the AR cycle.
How this connects to other terms
- DSO (days sales outstanding)
DSO is the headline measure of how long AR takes to convert to cash.
- Open item
Open-item accounting is how individual receivables stay individually trackable.
- Cash application
Cash application is what removes an invoice from AR once it is paid.