Learn · Accounts receivable
What is accounts receivable? AR basics for growing businesses
Learn accounts receivable basics, the AR collection process, aging reports, AR turnover and DSO formulas, and how to interpret a worked example.
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In short
What is accounts receivable?
Accounts receivable, or AR, is money customers owe a business for goods or services bought on credit. It appears as an asset because the business has a right to collect cash. AR operations cover invoicing, payment application, aging, collections, disputes, credit-loss estimates, and the final conversion of that right into settled cash.
Why accounts receivable is an asset, not revenue or cash
The SEC defines accounts receivable as amounts customers owe an entity for credit purchases of its goods or services. A balance sheet reports assets, liabilities, and equity at a point in time, while an income statement reports revenue and expenses over a period. A credit sale can therefore create revenue and AR without increasing bank cash on that day.
Settlement is a separate accounting event. In its IFRS 9 analysis, the IFRS Interpretations Committee says a trade receivable and the cash received to settle it are financial assets. Whether the receivable is derecognized before or at bank settlement depends on when the contractual right to its cash flows expires under the facts and applicable law. Finance should not mark an invoice paid merely because a customer sent a screenshot or initiated a transfer.
One sale, three different accounting states
| Feature | Earned and billedReceivable exists | Customer initiated paymentSettlement pending | Cash settled and appliedReceivable cleared |
|---|---|---|---|
| Customer obligation | Open under invoice terms | Potentially in transit | Discharged to the extent settled |
| Balance-sheet focus | Accounts receivable | Depends on rights and payment system | Cash, with AR reduced |
| Operational evidence | Contract, delivery, invoice | Payment message or remittance | Bank settlement and application |
| Main risk | Dispute or nonpayment | Return, delay, or wrong reference | Misapplication or unreconciled difference |
The exact recognition and derecognition entry follows the company’s accounting framework and facts. The table is an operations map, not accounting policy advice.
The AR operating cycle
A reliable process begins before the invoice and ends only after cash and the customer account agree.
Approve credit and terms
Identify the legal customer, billing contact, limit, currency, tax status, payment term, purchase-order requirement, and dispute process. Record who approved an exception.
Document the supply
Retain the contract, order, delivery, usage, timesheet, or acceptance evidence that supports the customer obligation. The IRS lists invoices and payment records among supporting business documents but notes that a combination may be required.
Issue an accurate invoice
Use a unique number, correct buyer entity, specific supply description, amount, currency, tax, due date, and reconciliation reference. Send it through the customer’s required channel and record successful delivery.
Monitor the aging report
Group outstanding balances by age and distinguish not-yet-due invoices, overdue invoices, disputed items, credits, unapplied cash, promised payments, and balances placed on hold.
Collect by cause
Ask for a payment date on a clean overdue invoice, but route a missing PO, tax error, service dispute, or wrong entity to the person who can fix it. Repeated generic reminders do not resolve defective billing.
Apply and reconcile cash
Match settled cash to customer, invoice, currency, amount, deductions, fees, credits, and withholding. Investigate residual balances rather than forcing them to zero.
Estimate losses and close
Review aging, customer facts, collections evidence, credit memos, write-offs, and the accounting allowance under the company’s reporting framework. Reconcile the AR subledger to the general ledger.
How to read an AR aging report
OpenStax defines an accounts-receivable aging schedule as a report showing amounts owed by customers by the age of the account, measured from the sale. In practice, a useful report should preserve invoice-level due dates as well as age. A 45-day-old invoice on net-60 terms is not overdue, while a 20-day-old invoice on due-on-receipt terms is.
| Status | Collection question | Accounting question |
|---|---|---|
| Not due | Was invoice delivered and accepted? | Is the receivable complete and correctly measured? |
| Recently overdue | Is there an approval, portal, or reference problem? | Is the expected payment date still supportable? |
| Persistently overdue | Is there a dispute, broken promise, or credit issue? | Should the loss estimate change? |
| Credit or unapplied cash | Which invoice or refund does it belong to? | Is customer-level netting appropriate? |
| Legal or insolvency status | What recovery steps and restrictions apply? | What evidence supports recoverability and write-off treatment? |
OpenStax explains that aging is used to estimate uncollectible amounts. IFRS 9 permits a provision matrix for trade receivables but requires historical rates to reflect current conditions and reasonable, supportable forecasts.
AR turnover and DSO formulas
| Metric | Formula | Interpretation |
|---|---|---|
| Average AR | (Beginning AR + ending AR) ÷ 2 | Simple average balance for the period |
| AR turnover | Net credit sales ÷ average AR | Times the average balance turns over |
| DSO | Days in period ÷ AR turnover | Approximate average collection period |
| Equivalent DSO | Average AR ÷ net credit sales × days | Same result from the underlying inputs |
OpenStax notes that cash sales are excluded because they do not create receivables. If a company substitutes total net sales because credit sales are unavailable, disclose that limitation and keep comparisons consistent.
| Input or calculation | Amount |
|---|---|
| Net credit sales | $1,200,000 |
| Beginning AR | $180,000 |
| Ending AR | $220,000 |
| Average AR | $200,000 |
| AR turnover | 6.0 times |
| DSO | 60.8 days |
Arithmetic: average AR = ($180,000 + $220,000) ÷ 2; turnover = $1,200,000 ÷ $200,000; DSO = 365 ÷ 6.0. Figures are illustrative, not a benchmark.
DSO summarizes a portfolio, so it can hide mix changes. A large sale near period end can raise ending AR even if collection behavior did not deteriorate. Growth, seasonality, billing frequency, payment terms, disputes, customer concentration, and the use of total rather than credit sales all affect interpretation. Compare the same definition over time and pair it with aging, overdue rate, and dispute data.
Collections that preserve customer relationships and evidence
- Send the invoice to the billing channel named by the customer and preserve delivery evidence.
- Before due date, confirm that the invoice has the required order, tax, banking, and portal information.
- After due date, ask for a specific payment date and record the promise with owner and next follow-up.
- Separate commercial disputes from administrative defects and route each to the person who can decide it.
- Issue credit notes through an authorized process instead of netting unexplained deductions informally.
- Use a stable invoice reference in payment instructions so incoming funds can be applied automatically or reviewed quickly.
- Escalate concentration and credit deterioration before the customer becomes the largest source of operating cash uncertainty.
Accounts-receivable questions
Is accounts receivable the same as revenue?
Why is AR an asset if the customer has not paid?
What does an AR aging report show?
What is the correct AR turnover formula?
How do you calculate DSO from turnover?
Is a lower DSO always better?
When should an invoice be marked paid?
Sources
External links open in a new tab.
- Balance sheet building blocks — US Securities and Exchange Commission
- Beginner’s guide to financial statements — US Securities and Exchange Commission
- IFRS 15 Revenue from Contracts with Customers — IFRS Foundation
- Receivables management using financial ratios — OpenStax
- What is working capital? — OpenStax
- Principles of Finance key terms — OpenStax
- Post-implementation Review of IFRS 9 impairment — IFRS Foundation
- IFRIC Update, September 2021 — IFRS Foundation
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