What Is Accounts Receivable (AR)? Definition, Accounting Rules, And Example

Accounts Receivable (AR) are amounts owed to a business by customers for services or goods already billed. In accounting, AR appears as a current asset on the balance sheet and represents the seller's legal claim for payment after goods have shipped or services have been delivered but before cash is collected.

AR arises from ordinary sales on credit terms (for example, "net 30") and is managed through invoicing, collections, and allowance processes. Accurate AR accounting requires matching revenues to the reporting period, estimating uncollectible amounts, and disclosing credit concentration or other risks that affect expected cash flows.

How Accounts Receivable Is Recognized In Financial Statements

When a sale on credit occurs, the company recognizes revenue and records a corresponding increase in accounts receivable. Under accrual accounting the journal entry typically debits Accounts Receivable and credits Sales Revenue. Collection converts the receivable to cash (debit Cash, credit Accounts Receivable). If a receivable becomes uncollectible, it is written off against an allowance for doubtful accounts or charged directly to bad debt expense depending on the company's accounting policy.

What The Allowance For Doubtful Accounts Covers

• Purpose: To estimate receivables unlikely to be collected and present AR at net realizable value.
• Methods: Percentage of sales, percentage of ending receivables, or aging analysis; choose the method that best reflects historical loss experience and current conditions.
• Financial Impact: Increases in the allowance raise bad debt expense and reduce net income; decreases reverse that effect.

Why Revenue Recognition Rules Matter

Revenue recognition standards (for example, ASC 606 in U.S. GAAP) require that revenue be recognized when control of goods or services transfers to the customer, not merely when cash changes hands. For many businesses this creates timing differences between when revenue is recorded and when cash is collected, making AR management critical for both reporting accuracy and liquidity planning.

How Accounts Receivable Is Measured And Classified

AR is usually classified as a current asset because payment is expected within the operating cycle (commonly 30–90 days). Measurement is at invoiced amount less allowances. Businesses commonly present aging schedules (0–30, 31–60, 61–90, >90 days) to show collectability and to support allowance estimates.

Practical Example

A merchant ships $20,000 of product to a customer on 30-day payment terms and issues an invoice. The merchant records revenue and debits Accounts Receivable $20,000. Thirty days later the customer pays $19,600; the merchant debits Cash $19,600, credits Accounts Receivable $20,000, and records $400 as a discount or write-off depending on the reason. If the merchant uses an allowance approach, it may have already recorded expected bad debt expense when the sale was recognized.

Common Controls And Best Practices

• Segregation Of Duties: Separate sales, billing, and collections to reduce fraud and errors.
• Frequent Reconciliation: Reconcile AR subledger to the general ledger monthly and review aging reports.
• Credit Policies: Use credit checks, approved limits, and periodic reviews for high-risk customers.
• Documentation: Maintain signed contracts, delivery receipts, and approved invoices to support recognition and collection.

How AR Affects Business Liquidity And Financing

Large receivable balances tie up cash and can require short-term financing. Common financing responses include lines of credit, factoring receivables, or using receivables as collateral. Lenders and investors closely review AR quality — aging, concentration, and historical write-offs — when assessing working capital needs and creditworthiness.

How AR Varies By Industry

Payment terms and collectability differ across industries: B2B distributors often grant 30–90 day terms, government contracts may have longer payment cycles, while retail and e-commerce typically collect at the point of sale and have minimal AR. Service firms with milestone billing will have AR tied to contract schedules rather than shipment dates.

In short, the Accounts Receivable (AR) balance records amounts customers owe for billed goods or services and must be managed for accurate reporting, reliable cash forecasting, and effective working-capital use.