Receivables, Payables, and Collections

Why Credit Transactions Need Separate Tracking

A business can earn revenue before it receives cash, or acquire an asset before it pays the supplier. In either case, recording only the cash movement would miss part of the transaction. Accounts receivable and accounts payable make those outstanding amounts visible: one is a claim on a customer, and the other is an obligation to a supplier.

The central check is the accounting equation. Assets include cash and amounts customers owe; liabilities include amounts owed to suppliers. Equity reflects the owners’ residual interest, including the effects of earned revenue and incurred expenses. A transaction can change one or several of these amounts, but the equation must still balance.

Definition: Accounts receivable is an asset representing a customer’s obligation to pay the business for goods or services already provided on credit. Accounts payable is a liability representing the business’s obligation to pay a supplier for goods or services already received on credit. A receivable is not cash, and a payable is not an expense by definition: the account affected by a purchase depends on what the business received.

In the examples, assume the goods or services have been delivered, the amounts are fixed, and there are no sales taxes, discounts, returns, interest charges, or expected collection losses. These simplified assumptions let us isolate the accounting effects. A collection is recorded when cash is received; a supplier payment is recorded when cash is paid.

Credit Sales and Customer Collections

Under the introductory accrual-accounting model, revenue is recognized when the business has completed the sale, not merely when it receives cash. If the customer will pay later, the business records a receivable at the same time it recognizes revenue. Revenue increases equity, while the receivable increases assets.

\text{Credit sale:}\qquad \text{Accounts receivable increases} \quad\text{and}\quad \text{revenue increases equity}.

When the customer later pays, cash increases and accounts receivable decreases by the same amount. The business has converted one asset into another; it has not earned the revenue a second time. If payment is only partial, the unpaid balance remains in accounts receivable.

Key distinction: A credit sale creates revenue and a receivable. A later customer collection reduces the receivable and increases cash. The collection does not create additional revenue.

Worked Example: A Service Sale With Two Collections

A consulting business begins with cash of $7,000, accounts receivable of $0, accounts payable of $2,000, and equity of $5,000. It completes a $3,600 service for a customer on credit. The customer first pays $2,200 and later pays the remaining balance. Find the balances after each event and check the equation.

Method and assumptions. Treat the completed service as revenue earned immediately. Record the customer’s obligation as a receivable. Assume both payments are received in full, with no fees or other transactions.

At the credit sale. Accounts receivable rises from $0 to $3,600. Revenue increases equity from $5,000 to $8,600. Cash stays at $7,000, and accounts payable stays at $2,000. Total assets are $7,000 + $3,600 = $10,600. The equation checks: $10,600 = $2,000 + $8,600.

At the first collection. Cash rises by $2,200, from $7,000 to $9,200. Accounts receivable falls by $2,200, from $3,600 to $1,400. Total assets remain $9,200 + $1,400 = $10,600. Neither the payable nor equity changes, so the equation remains $10,600 = $2,000 + $8,600.

At the final collection. Cash rises by the remaining $1,400 to $10,600, and accounts receivable falls to $0. Total assets are still $10,600, while liabilities and equity remain $2,000 and $8,600. Thus $10,600 = $2,000 + $8,600.

Check and trap avoided. The customer paid $3,600 in total, exactly the amount of the sale, so the receivable ends at zero. A common mistake is to count each collection as new revenue. That would overstate equity; revenue was recognized once, when the service was completed.

Credit Purchases and Supplier Payments

A credit purchase creates an obligation to the supplier, but it does not tell us by itself whether the item received is an asset or an expense. For example, supplies that remain on hand are an asset. An advertising service that has already been used is an expense. This tutorial focuses on tracking the payable and cash separately from the item or service acquired.

If a business acquires an asset on credit, the asset and accounts payable both increase. Paying the supplier later reduces cash and accounts payable by equal amounts. The payment settles an obligation; it does not acquire the asset a second time.

\text{Credit purchase of an asset:}\qquad \text{asset increases and accounts payable increases}.

\text{Supplier payment:}\qquad \text{cash decreases and accounts payable decreases}.

Worked Example: Supplies Bought on Credit

A small design firm has cash of $12,000, no other assets or liabilities, and equity of $12,000. It buys $1,800 of supplies on credit. Before using any supplies, it pays the supplier $700. Determine the balances after the purchase and after the payment.

Method and assumptions. Treat all supplies as an asset because none have been used. Assume the supplier accepts the $700 payment against this invoice and there are no other transactions.

After the credit purchase. Cash remains $12,000. Supplies increase to $1,800, so assets total $12,000 + $1,800 = $13,800. Accounts payable increases from $0 to $1,800, while equity remains $12,000. Check: $13,800 = $1,800 + $12,000.

After the $700 payment. Cash decreases to $12,000 − $700 = $11,300. Supplies remain $1,800, so total assets are $11,300 + $1,800 = $13,100. Accounts payable decreases to $1,800 − $700 = $1,100. Equity remains $12,000, giving $13,100 = $1,100 + $12,000.

Check and trap avoided. The remaining payable of $1,100 equals the unpaid portion of the $1,800 purchase. Do not reduce supplies or record the purchase again when making the payment: the payment settles the supplier balance, while the supplies remain on hand.

Why the Equation Balances

The changes in the accounting equation follow from what each event does. A credit sale adds an asset, accounts receivable, while the earned revenue increases equity. A credit purchase of an asset adds that asset and an equal liability. A collection exchanges receivable for cash, and a supplier payment reduces cash and the payable together.

The collection and payment relationships can be justified directly. If a customer pays an amount $c$, cash rises by $c$ and receivables fall by $c$. Therefore the net change in assets is $+c-c=0$. If the business pays a supplier $p$, cash falls by $p$ and payables fall by $p$. Assets and liabilities both decrease by the same amount, so the equation continues to balance without changing equity.

\Delta\text{Assets}=c-c=0 \qquad\text{(customer collection)}

\Delta\text{Assets}=-p \quad\text{and}\quad \Delta\text{Liabilities}=-p \qquad\text{(supplier payment)}

For a credit purchase of an asset costing $q$, assets increase by $q$ and liabilities increase by $q$. The equation balances because the two sides rise by the same amount. If instead the business receives a service that is already consumed, the purchase is an expense: the payable rises, and the expense reduces equity. In that case, it would be incorrect to report an asset for a service that has already been used.

Takeaway: Separate the event that creates a receivable or payable from the later event that settles it. Then identify whether a purchase creates an asset or an expense. These distinctions determine which balances change and prevent revenue, assets, liabilities, or equity from being counted twice.

Tracing a Sequence Without Losing the Balances

For a sequence of transactions, update each affected account at the event when it occurs. A compact balance table is useful: list cash, receivables, other assets, payables, and equity, then recalculate total assets and compare them with liabilities plus equity. This is a check on the accounting equation, not a substitute for identifying the correct account effects.

Worked Example: Sales, Collections, Equipment, and Payment

A new advisory firm starts with cash of $10,000, no receivables, no payables, and equity of $10,000. It completes $5,000 of services on credit, then completes another $1,500 of services for cash. It collects $2,000 from the credit customer, buys equipment costing $3,200 on credit, and pays the equipment supplier $1,000. Find the ending balances and verify the equation.

Method and assumptions. Recognize each completed service as revenue when earned. Treat the equipment as an asset, assume the collection applies to the credit customer’s balance, and assume there are no expenses or other transactions.

1. Credit service sale. Accounts receivable becomes $5,000. Revenue raises equity to $10,000 + $5,000 = $15,000. Cash remains $10,000, so assets are $15,000. Liabilities are $0; therefore $15,000 = $0 + $15,000.

2. Cash service sale. Cash becomes $10,000 + $1,500 = $11,500, and equity becomes $15,000 + $1,500 = $16,500. Receivables remain $5,000. Assets total $11,500 + $5,000 = $16,500; liabilities are still $0.

3. Customer collection. Cash increases to $11,500 + $2,000 = $13,500. Receivables decrease to $5,000 − $2,000 = $3,000. Total assets remain $13,500 + $3,000 = $16,500. Equity remains $16,500.

4. Equipment purchase on credit. Equipment increases by $3,200, and accounts payable becomes $3,200. Assets are now $13,500 cash + $3,000 receivables + $3,200 equipment = $19,700. The equation checks: $19,700 = $3,200 + $16,500.

5. Supplier payment. Cash decreases to $13,500 − $1,000 = $12,500. Accounts payable decreases to $3,200 − $1,000 = $2,200. Equipment and receivables remain $3,200 and $3,000. Ending assets are $12,500 + $3,000 + $3,200 = $18,700. Ending liabilities plus equity are $2,200 + $16,500 = $18,700.

Check and trap avoided. The customer still owes $3,000, and the firm still owes the equipment supplier $2,200. A common error is to treat the $2,000 collection as additional revenue or the $1,000 supplier payment as a second equipment purchase. Neither is correct: each settlement changes cash and an existing balance, not the original sale or purchase.

Common Mistakes to Avoid

Equating revenue with cash received. A completed credit sale can increase revenue and receivables even when cash has not yet arrived.
Recording a collection as a second sale. A collection reduces accounts receivable and increases cash; it does not increase revenue.
Calling every credit purchase an expense. Supplies on hand or equipment acquired can be assets. A consumed service is generally an expense in this simplified model.
Reducing the purchased item when paying the supplier. Payment reduces cash and accounts payable; it does not reverse the purchase.
Ignoring partial balances. After a partial collection or payment, calculate the remaining receivable or payable as the original amount less the amount settled.

Check Your Understanding

For each problem, track the relevant balances and use the accounting equation as a check. Assume no taxes, discounts, interest, or other transactions.

A translation firm has cash of $4,000 and equity of $4,000. It completes a $2,750 translation on credit and then collects $1,000. What are its cash, receivable, and equity balances? (Answer: Cash $5,000; accounts receivable $1,750; equity $6,750.)
A shop has cash of $8,400, no liabilities, and equity of $8,400. It buys $1,300 of supplies on credit and pays $500 to the supplier. Assume the supplies are unused. State ending cash, supplies, accounts payable, and total assets. (Answer: Cash $7,900; supplies $1,300; accounts payable $800; total assets $9,200.)
A business starts with cash and equity of $5,000. It earns $2,400 of service revenue on credit and collects $900. What are ending cash, accounts receivable, total assets, and equity? (Answer: Cash $5,900; accounts receivable $1,500; total assets $7,400; equity $7,400.)
A firm has cash of $9,000, no liabilities, and equity of $9,000. It buys equipment for $4,600 on credit and pays the supplier $1,700. Find ending cash, equipment, accounts payable, and verify the equation. (Answer: Cash $7,300; equipment $4,600; accounts payable $2,900; assets $11,900 = liabilities $2,900 + equity $9,000.)
A company begins with cash and equity of $12,000. It earns $3,200 on credit and $800 in cash, collects $1,200 from the credit customer, buys $1,500 of unused supplies on credit, and pays the supplier $600. Find ending cash, receivables, supplies, payables, and equity. (Answer: Cash $13,400; accounts receivable $2,000; supplies $1,500; accounts payable $900; equity $16,000. Assets $16,900 = liabilities $900 + equity $16,000.)

What You'll Learn