Accounts receivable (AR) is the money your customers owe you for goods or services you have already delivered but have not yet been paid for. When you invoice a customer on credit terms instead of taking payment up front, that unpaid invoice becomes an account receivable and is recorded as a current asset on your balance sheet.
Each receivable is a legally enforceable claim to cash, usually collected within 30 to 90 days. In double-entry bookkeeping you debit Accounts Receivable and credit revenue when you raise the invoice, then debit cash and credit Accounts Receivable when the customer pays. The total of all unpaid invoices, minus an allowance for amounts you do not expect to collect, is your net accounts receivable. AR matters because money tied up in unpaid invoices is cash your business cannot yet use.
Accounts receivable sits at the center of how almost every business that sells on credit manages its cash. Sell now, collect later, and the gap between the two is your AR. Get it right and cash flows in predictably; let it drift and you can be profitable on paper while running short of cash in the bank.
How accounts receivable works: a worked example
The clearest way to understand AR is to follow a single invoice from start to finish. Say you sell $5,000 of goods to a customer on Net 30 terms. Here is how that one transaction moves through your books.
| Step | Account | Debit | Credit |
|---|---|---|---|
| 1. Raise the invoice (Net 30 sale) | Accounts receivable | $5,000 | |
| Sales revenue | $5,000 | ||
| 2. Customer pays (within 30 days) | Cash | $5,000 | |
| Accounts receivable | $5,000 |
Between step 1 and step 2 the $5,000 sits on your balance sheet as a current asset. It is revenue you have earned but cash you have not yet received. Once the customer pays, the receivable clears to zero and the cash lands in your account.
On the balance sheet, AR is reported net of an allowance for doubtful accounts, the slice of invoices you realistically expect never to collect. Gross AR minus that allowance is the net figure that actually appears in your financial statements.
Source: Cornell Legal Information Institute, current assetTo know whether your receivables are healthy, you group the open invoices by how overdue they are. Here is a miniature aging snapshot:
| Aging bucket | Balance | % of AR | Read |
|---|---|---|---|
| Current (not yet due) | $42,000 | 70% | Healthy core |
| 1 to 30 days overdue | $9,000 | 15% | Watch |
| 31 to 90 days overdue | $6,000 | 10% | Chase |
| 90+ days overdue | $3,000 | 5% | Collections risk |
| Total AR | $60,000 | 100% |
A healthy book keeps roughly 70% or more current and under 10% in the 90+ bucket. For the full method and a fully populated example, see our guide to an accounts receivable report example.
Source: Resolve, AR aging benchmarksWhat is accounts receivable in simple words?
In simple words, accounts receivable is an "IOU" from your customers. You have done the work or shipped the product, you have sent the bill, and now you are waiting to get paid. Until the money arrives, the amount owed sits on your books as accounts receivable. It is yours to collect, which is why it counts as an asset rather than income you have already banked.
What is the meaning of AR in accounts receivable?
AR is simply the abbreviation for "accounts receivable." You will see it used everywhere in finance: an "AR balance" is the total your customers owe, an "AR aging report" lists those balances by how overdue they are, and an "AR team" is the people who chase and collect them. The mirror-image term is AP, short for accounts payable, which is the money you owe your own suppliers.
What do you mean by an account receivable?
A single "account receivable" (singular) is one customer balance, usually one unpaid invoice. "Accounts receivable" (plural) is the sum of all of them. Each one is a legally enforceable claim to a specific amount of cash for value you have already delivered, recorded as a current asset until the customer settles it.
Accountants split receivables into three types: trade receivables from selling goods or services on credit, notes receivable backed by a formal written promissory note, and other (non-trade) receivables such as tax refunds or employee advances.
What is accounts receivable versus accounts payable?
Accounts receivable is money owed to you (a current asset, cash coming in). Accounts payable is money you owe to suppliers (a current liability, cash going out). They are two sides of the same credit transaction: when you invoice a customer, you book a receivable and they book a payable for the identical amount.
We cover this in depth, with mirrored journal entries from both sides of the ledger, in accounts receivable vs accounts payable.
What are the 3 types of account?
This depends on which framework you learned. Under the traditional (golden-rules) approach there are three: personal accounts (people and entities), real accounts (assets and property), and nominal accounts (income, expenses, gains, and losses). Accounts receivable is a personal or real account.
Modern US teaching usually uses a five-element model instead: assets, liabilities, equity, revenue, and expenses. Both are correct; they are just two ways of classifying the same ledger.
Source: Patriot Software, the three golden rules of accountingHow is AR calculated?
Accounts receivable is not the output of a formula. It is a running balance equal to the sum of every unpaid customer invoice at a point in time. You add up all invoices you have issued on credit and subtract any payments already received against them. To get the figure that appears on the balance sheet, subtract the allowance for doubtful accounts to arrive at net accounts receivable.
The number people usually want a formula for is the AR turnover ratio, covered below and in our accounts receivable turnover ratio guide.
What is the 10 rule for accounts receivable?
There are two things people mean by this. The most common is the cross-aging "10% rule": if more than 10% of a single customer's total receivables are overdue (typically past 90 days), the entire account is reclassified as high-risk or doubtful, not just the overdue portion. Lenders use this when calculating a borrowing base.
A second, looser usage is a cash-flow target: collect at least 10% of your total outstanding AR every month. Sources disagree on which is canonical, so it is worth clarifying which one a colleague means.
Source: eCapital, cross-aged accounts and the 10% ruleWhat is the formula for AR?
There is no single "AR formula," because AR is a balance rather than a calculation. The formula searchers usually want is the accounts receivable turnover ratio:
AR turnover ratio = Net credit sales ÷ Average accounts receivable
Average AR = (opening AR + closing AR) ÷ 2
Divide 365 by that ratio and you get days sales outstanding (DSO), the average number of days it takes to collect.
What is a good AR ratio?
For the AR turnover ratio, a good benchmark is roughly 5 to 10 times per year, meaning you collect your average receivables every 36 to 73 days. Higher is generally better. The right target depends on your industry and credit terms: technology firms often run near 12, while construction and long-cycle businesses run lower.
Source: Corporate Finance Institute, AR turnover ratioWhat are the 5 key ratios?
The five financial ratios most often taught cover liquidity, leverage, and profitability:
- Current ratio (current assets ÷ current liabilities) and quick ratio, for short-term liquidity
- Debt-to-equity ratio, for leverage
- Gross or net profit margin, for profitability
- Return on assets (or equity), for how efficiently the business uses what it owns
The AR turnover ratio is an efficiency ratio that complements these by showing how quickly you convert sales into cash.
Source: Corporate Finance Institute, financial ratiosWhat is a healthy accounts receivable percentage?
A healthy AR book has roughly 70% or more of the balance current (within terms) and less than 10% sitting in the 90+ days overdue bucket. Once the 90+ bucket climbs above about 15% of total AR, it signals a collections problem and a rising risk of write-offs. Some industries, such as healthcare, tolerate slightly higher overdue percentages because of insurance billing cycles.
Source: Resolve, AR aging and write-off correlationsHow to calculate accounts receivable on the balance sheet?
Sum the value of all outstanding customer invoices at the reporting date, then subtract the allowance for doubtful accounts. The result, net accounts receivable, is what you report under current assets:
Net accounts receivable = Gross receivables − Allowance for doubtful accounts
For example, $63,000 of gross invoices outstanding minus a $3,000 allowance gives $60,000 of net AR on the balance sheet. You can confirm the gross figure by running an AR aging report and taking the grand total.
Last updated June 9, 2026. This guide is general information, not accounting, tax, or financial advice.