Accounts receivable accounting covers how a business records the money customers owe it, estimates what it won’t collect, and presents the resulting balance on the financial statements. Under accrual accounting, a receivable goes on the books when the sale is earned, not when the cash arrives, which is why AR is usually the largest current asset a company reports. Four things determine whether the numbers are right: when you recognize the receivable, how you journal the transactions around it, how you estimate credit losses, and what controls sit around the cycle.
When a Receivable Actually Exists
A receivable exists the moment the company has an unconditional right to payment. Under current GAAP revenue rules, that right is unconditional when the only thing left between the company and the cash is the passage of time. Ship the product on net-30 terms, and a receivable is recorded that day. If payment still depends on the seller doing something else first, such as delivering a second component, the balance is a contract asset instead of a receivable and stays that way until the condition is satisfied.1FASB. Revenue from Contracts with Customers (Topic 606)
The distinction matters for liquidity reporting. Classifying a contract asset as a receivable overstates what the company can realistically expect to collect in the near term and distorts the ratios lenders look at.
Journal Entries for Credit Sales
A credit sale creates two ledger movements. Debit accounts receivable to record the new asset; credit revenue to recognize the earned sale. A $10,000 sale on net-30 terms produces a $10,000 debit to accounts receivable and a $10,000 credit to sales revenue. That entry stays open until the customer pays or the balance is written off.
When sales tax applies, the entry picks up a third line. The receivable is debited for the full amount the customer owes, revenue is credited only for the sale price, and sales tax payable is credited for the tax. On a $10,000 sale with 7% tax, that’s $10,700 to accounts receivable, $10,000 to revenue, and $700 to sales tax payable. Skipping the third line is one of the most common AR bookkeeping errors, and it compounds across hundreds of invoices.
Returns and Allowances
If the customer returns goods, reverse part of the sale by debiting sales returns and allowances and crediting accounts receivable for the reduction. Running returns through a contra-revenue account preserves the gross sales figure and lets management see return patterns separately.
Early-Payment Discounts
Credit terms like “2/10, net 30” give the customer a 2% discount for paying within ten days, with the full balance otherwise due in thirty. When the customer takes the discount on a $10,000 invoice, debit cash for $9,800, debit sales discounts for $200, and credit accounts receivable for the full $10,000. When the customer pays after the discount window, the entry is simpler: debit cash $10,000, credit accounts receivable $10,000.
Estimating Credit Losses
Not every customer pays, and the accounting question is when to recognize that. Two methods exist, and GAAP only allows one of them for financial reporting.
Why the Direct Write-Off Method Is Off the Table for GAAP
The direct write-off method records the loss only when a specific account is confirmed uncollectible: debit bad debt expense, credit accounts receivable. It’s simple, but it recognizes the loss in a different period than the revenue that created it. A January sale that goes bad in September expenses the loss nine months late, distorting both periods. GAAP prohibits this method for financial reporting. It remains acceptable for tax purposes, because the IRS cares about the year the loss is actually realized.
The Allowance Method Under CECL
GAAP requires estimating future credit losses upfront through the allowance method. Debit bad debt expense; credit allowance for doubtful accounts. The allowance is a contra-asset that reduces receivables on the balance sheet to net realizable value.
Since 2023, all entities, including public companies, private businesses, and nonprofits, must estimate those losses using the Current Expected Credit Losses (CECL) model under FASB ASC Topic 326.2FDIC. Current Expected Credit Losses (CECL) CECL requires estimating expected losses over the full life of the receivable from day one, drawing on historical data, current conditions, and reasonable forecasts.3Federal Reserve. Frequently Asked Questions on the New Accounting Standard on Financial Instruments – Credit Losses
Two estimation approaches fit inside CECL. The aging schedule method groups receivables by how far past due they are — current, 1–30 days, 31–60 days, 61–90 days, and over 90 days — and applies a progressively higher loss percentage to each bucket based on historical experience. A company might apply 1% to current balances and 25% or more to invoices past 90 days. The percentage-of-credit-sales method applies a flat historical loss rate to total credit sales, adjusted for current conditions. It’s simpler but doesn’t distinguish new balances from aging ones.
When a specific account is finally confirmed uncollectible, debit the allowance and credit accounts receivable. This write-off never touches the income statement, because the expense was already recognized when the allowance was set. If a customer later pays a debt that had been written off, reverse the write-off (debit accounts receivable, credit the allowance), then record the payment normally.
Measuring How Fast You Collect
Two ratios tell you whether the AR balance is turning into cash on schedule.
Accounts Receivable Turnover
Turnover is net credit sales divided by average accounts receivable. A company with $2 million in annual credit sales and an average receivable balance of $250,000 has a turnover of 8, meaning it cycles through its receivables eight times a year. Higher generally signals faster collection and healthier cash flow, though a ratio that runs very high can mean credit terms are so tight they’re costing sales.
Days Sales Outstanding
DSO restates turnover as the average number of days between sale and collection: accounts receivable divided by credit sales, multiplied by the days in the period. A turnover of 8 works out to a DSO of roughly 46 days. Tracking DSO month to month exposes collection trends faster than the annual turnover ratio; a DSO that keeps drifting upward is an early warning long before any individual account reaches collections.
Controls Around the AR Cycle
Receivables are one of the most fraud-prone areas in accounting because the cycle combines cash, customer records, and write-off authority. When one person controls too many of those steps, the opportunity for theft grows quickly.
Separation of Duties
No single employee should handle more than one of these three functions: receiving payments, recording payments to customer accounts, and authorizing write-offs or adjustments. When the same person opens the mail and posts payments, they can steal a check from Customer A and later apply Customer B’s payment to Customer A’s balance to cover the theft, a scheme called lapping that can run for months. If the person recording payments can also approve write-offs, they can steal a payment and clear the balance by writing it off.
Small businesses that can’t fully separate the roles need compensating controls. Require a second signature on any write-off above a set dollar threshold. Have account statements mailed independently to customers with instructions to report discrepancies directly to management. Spot-check how payments were applied against the dates they arrived.
Reconciling the Subsidiary Ledger
A business that keeps customer-level records in a subsidiary ledger must reconcile the total of those individual balances to the accounts receivable control account in the general ledger at least monthly. Pull the general ledger balance after the period closes, compare it to the sum of the customer balances, and investigate any gap. Differences usually trace to timing (posted to one system, not yet to the other), posting errors, or unrecorded adjustments. Documenting the reconciliation and having someone other than the preparer review it closes the loop.
Balance Sheet Presentation and Disclosures
Accounts receivable sit on the balance sheet as a current asset, just under cash and short-term investments. The reported figure is net realizable value: total receivables minus the allowance for doubtful accounts.
SEC reporting rules require companies to break receivables into categories: trade receivables from customers, amounts owed by related parties, and receivables from officers or employees that arose outside normal operations. If notes receivable exceed 10% of total receivables, accounts receivable and notes receivable must appear as separate line items. The allowance for doubtful accounts must be shown separately, either on the face of the balance sheet or in the notes.4eCFR. 17 CFR 210.5-02 – Balance Sheets
Concentration of Credit Risk
When a public company draws 10% or more of its revenue from a single customer, GAAP requires disclosing that concentration in the notes. If the customer defaults or leaves, the impact on the business is disproportionate, and the disclosure flags a vulnerability that isn’t visible in the aggregate receivable balance.
Footnote Disclosures
The notes must explain the methodology behind the credit loss estimate, including the key CECL assumptions. Companies also disclose changes in the allowance during the period: opening balance, amounts charged to expense, write-offs, recoveries, and closing balance. This rollforward tells an analyst whether reserves are building because conditions are deteriorating or releasing because collections improved.
Documentation That Makes the Receivable Enforceable
The strength of a receivable as a legal claim comes from what got captured at the transaction level. Every invoice should identify the customer by legal name and reference the underlying sales agreement or purchase order. Credit terms need to be explicit; “payment due upon receipt” gives less protection than “net 30 from invoice date.” Any late-payment charge should be stated in the contract and on the invoice. State laws differ on the maximum interest rate enforceable on overdue commercial invoices, so the rate has to comply with the law where the customer is located.
For sales of goods, the Uniform Commercial Code generally requires contracts above a certain dollar threshold to be in writing and to state a quantity. Without a stated quantity, the contract may not be enforceable.5Legal Information Institute. UCC Article 2 – Sales (2002) Price, delivery terms, and payment due dates round out the documentation that turns an invoice into a legally enforceable claim.
For public companies, the stakes reach beyond collection. Officers who willfully certify financial statements they know to be false face fines up to $5 million and up to 20 years in prison under federal law. A knowing but not willful false certification carries fines up to $1 million and up to 10 years of imprisonment.6Office of the Law Revision Counsel. 18 USC 1350 – Failure of Corporate Officers to Certify Financial Reports Receivable balances that are materially misstated through aggressive revenue recognition, understated allowances, or failure to write off known bad debts can trigger those provisions. The team’s documentation of estimates and assumptions is the first line of defense in any audit or enforcement action.