Accounts Receivable Explained: Tracking and Collecting What You're Owed
Accounts receivable (AR) is the money customers owe your business for goods or services you have already delivered but that they haven't paid for yet. Every unpaid invoice you've sent is part of it. It counts as an asset, but it only becomes useful when it turns into cash.
That gap between "earned" and "received" is where many otherwise healthy businesses get into trouble. Managing receivables well isn't about chasing people aggressively. It is about knowing, at any moment, who owes what, how late it is, and what you are doing about it.
What is accounts receivable?
When you sell on credit, meaning you deliver first and invoice with payment due later, the amount the customer owes is recorded as a receivable. It appears on the balance sheet as a current asset because you expect to collect it within the year. When the customer pays, the receivable goes down and cash goes up by the same amount.
A business that only takes payment at the point of sale, like most shops and cafés, has little or no accounts receivable. A consultancy, wholesaler or agency that invoices on terms can have a large share of its assets tied up in it.
Why do receivables matter more than sales?
Sales figures tell you what you've earned. Receivables tell you how much of it you still have to go and get. Two businesses with identical sales can have very different bank balances if one collects in 20 days and the other in 70.
Receivables also grow automatically as sales grow. That is one reason fast revenue growth can leave a business short on cash: every extra sale on credit is cash you've spent to earn but haven't collected. Receivables are one of the main parts of working capital.
Accounts receivable vs accounts payable
| Accounts receivable | Accounts payable | |
|---|---|---|
| What it is | Money customers owe you | Money you owe suppliers |
| Created by | Invoices you send | Invoices you receive |
| Balance sheet | Current asset | Current liability |
| Cash effect when settled | Cash comes in | Cash goes out |
| What you want | Collected promptly | Paid on time, within agreed terms |
The same invoice is a receivable in the seller's books and a payable in the buyer's. Managing both together, collecting on time while paying within terms, is most of what good working capital management means in practice.
What is an accounts receivable aging report?
An aging report sorts unpaid invoices by how long they have been outstanding, or how far past due they are. It is the single most useful receivables view, because the older an invoice gets, the less likely it is to be paid in full.
| Customer | Current | 1–30 days late | 31–60 days late | 60+ days late | Total |
|---|---|---|---|---|---|
| Northwind Ltd | $12,000 | $4,000 | $16,000 | ||
| Harbor & Co | $6,500 | $3,500 | $10,000 | ||
| Blue Fern Studio | $8,000 | $2,500 | $10,500 | ||
| Miller Retail | $2,000 | $6,500 | $8,500 | ||
| Total | $26,500 | $6,500 | $5,500 | $6,500 | $45,000 |
The total is useful, but the columns tell you where to act. Here, almost 60% is current, which is fine. The $6,500 more than 60 days late, all from one customer, is where attention belongs this week.
What is days sales outstanding (DSO)?
Days sales outstanding estimates how many days, on average, it takes customers to pay you:
DSO = (Accounts receivable ÷ Credit sales for the period) × Days in the period
With $45,000 outstanding and $135,000 of credit sales over the last 90 days: 45,000 ÷ 135,000 × 90 = 30 days.
DSO is most useful as a trend and against your own terms. If you invoice on Net 30 and DSO creeps from 30 to 45 days over two quarters, customers are paying later, even if no single invoice looks alarming. Seasonal businesses should compare like-for-like periods.
Should you offer credit to every customer?
Every time you invoice on terms, you are lending the customer money for that period. It is reasonable to decide, customer by customer, how much you're prepared to lend:
- New customers: consider a deposit, payment on delivery or short terms until they have a payment history with you.
- A credit limit: a maximum amount a customer can owe at any one time. New orders beyond it wait until older invoices are paid.
- Concentration: if one customer accounts for a large share of your receivables, a single late payment from them affects the whole business. It is worth knowing that share and watching it.
- Review regularly: a customer who paid reliably last year and has started paying late is sending a signal.
What does a good collections routine look like?
Most late payments aren't disputes. They are invoices that got lost, went to the wrong person, or never reached the top of someone's list. A simple, consistent routine fixes most of them:
- Invoice immediately and correctly. Send it on delivery, to the right contact, with the client's PO number if they use one. See what to include on an invoice.
- State a real due date. "Due 14 April" beats "payment due promptly". Clear invoice payment terms remove the first excuse for paying late.
- Remind before the due date. A short, friendly note a few days ahead catches invoices that were never approved.
- Follow up on a schedule after it. For example on day 1, day 7 and day 14 overdue, moving from email to phone.
- Escalate deliberately. Pause further work, apply any late-payment terms in your contract, and consider formal recovery for large amounts. What you can charge or do depends on your contract and local law.
In some countries, suppliers have specific statutory protections against late payment. In India, for example, the MSMED Act sets payment deadlines for buyers dealing with registered micro and small enterprises; see MSMED Act delayed payment rules.
How can a small business track receivables without special software?
A spreadsheet works well until volume grows. One row per invoice, with these columns, is enough to produce an aging report and a DSO figure:
- Invoice number, customer and issue date.
- Amount and currency.
- Due date, taken from the agreed payment terms.
- Date paid and amount paid, including part-payments.
- Days overdue, calculated from today's date and the due date.
- Last reminder sent, and a short note on what the customer said.
Sorting by days overdue gives you this week's collection list. Filtering by customer shows who pays reliably and who needs shorter terms next time. When the sheet becomes hard to keep current, that is usually the sign to move to accounting or invoicing software with receivables tracking built in.
What happens when an invoice won't be paid?
A bad debt is a receivable that won't be collected. Many businesses also estimate, in advance, how much of their current receivables probably won't be paid, often called an allowance or provision for doubtful debts. How bad debts are recognised depends on the accounting framework you follow, and whether a write-off reduces your tax bill varies by country, so confirm the treatment with your accountant.
The practical lesson is simpler: a sale isn't finished until it's paid. Profit that never turns into cash doesn't pay suppliers.