Bookkeeping BasicsDecember 12, 20257 min read

What Is Accounts Receivable? A Plain-English Guide

Accounts receivable is the money customers owe you for work already done. Understanding it is the key to why a profitable business can still run out of cash. Here is A/R, aging, and DSO in plain English.

Accounts receivable is one of those bookkeeping terms that sounds more complicated than it is. It is simply the money your customers owe you for work you have already done. Understanding it is the key to knowing why a profitable business can still run out of cash. Here is the plain-English version.

What accounts receivable actually is

Accounts receivable, or A/R, is money owed to you for products or services you have delivered but have not been paid for yet. The moment you send an invoice with terms like net 30, you have created a receivable. It is technically an asset, because it is money you have a right to collect, even though it is not in your bank account.

How an invoice becomes a receivable

Send an invoice and the amount sits in A/R until the customer pays. When the payment lands, the receivable goes away and your cash goes up. So at any given moment, your A/R is the sum of every invoice you have sent that has not been paid. That is why your balance sheet lists accounts receivable as a current asset.

Why profit and cash are not the same

Here is the lesson hiding inside A/R. You can book a sale and show a profit the day you invoice, but if the customer takes 60 days to pay, that profit is not cash you can spend yet. A business can look great on paper and still struggle to make payroll because too much of its money is stuck in receivables. This is exactly the gap a cash flow statement exists to show.

The A/R aging report

An aging report sorts your unpaid invoices by how overdue they are: current, 1 to 30 days, 31 to 60, 61 to 90, and over 90. It is the single most useful tool for collections, because it shows at a glance who is slow and which invoices are at real risk of never being paid. The older a receivable gets, the less likely it is to come in.

Days sales outstanding

Days sales outstanding, or DSO, measures how long on average it takes to get paid. The rough formula is your accounts receivable divided by your credit sales, times the number of days in the period. A rising DSO is an early warning that collections are slipping, and that you may want to tighten your payment terms or get more aggressive about getting clients to pay.

Watch what you are owed, not just what you booked

Profit you have invoiced but not collected does not pay the bills. Keep an eye on accounts receivable so cash does not catch you off guard.

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How Vuuv helps

Vuuv tracks every invoice from sent to paid, so your outstanding and overdue balances are always current, and you can take card or bank payment to shrink A/R faster. On the Pro and Elite plans, Vuuv's A/R Aging report buckets exactly who owes you and for how long, so collections are a quick scan instead of a spreadsheet exercise.

Frequently asked questions

What is accounts receivable?

Accounts receivable, or A/R, is money your customers owe you for products or services you have delivered but have not been paid for yet. The moment you send an invoice with terms like net 30, you create a receivable. It is a current asset, because it is money you have a right to collect.

How does an invoice become accounts receivable?

When you send an invoice, the amount sits in accounts receivable until the customer pays. When the payment lands, the receivable goes away and your cash goes up. At any moment, your A/R is the sum of every invoice you have sent that has not yet been paid.

What is an A/R aging report?

An aging report sorts your unpaid invoices by how overdue they are: current, 1 to 30 days, 31 to 60, 61 to 90, and over 90. It is the most useful tool for collections because it shows at a glance who is slow and which invoices are at real risk of going unpaid.

What is days sales outstanding?

Days sales outstanding, or DSO, measures how long on average it takes to get paid. The rough formula is accounts receivable divided by credit sales, times the number of days in the period. A rising DSO is an early warning that collections are slipping.

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This article is general information, not tax advice. Tax rules change and every situation is different. Confirm the details against current IRS guidance or talk to a qualified tax professional before you file.

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