Accounts Receivable and Accounts Payable: The Complete Student Guide

Two Sides of Credit Transactions

When a business sells goods or services on credit, it records an accounts receivable — an asset representing the customer's obligation to pay. When a business purchases goods or services on credit, it records an accounts payable — a liability representing its own obligation to pay the supplier. Every credit transaction in the business world creates an accounts receivable for the seller and an accounts payable for the buyer.

Understanding both sides of this relationship is essential for accounting students. The accounting, the analytical ratios, and the internal controls involved in managing receivables and payables are core topics in introductory and intermediate accounting courses — and they have direct real-world relevance for every business that does not collect cash at the point of every sale.

Accounts Receivable: Recording and Management

When a business makes a credit sale, it records: Debit Accounts Receivable, Credit Revenue. The revenue is recognised at the point of sale under the accrual method, even though no cash has yet been received. This is one of the fundamental differences between accrual and cash accounting — accrual accounting recognises economic activity when it occurs, not when cash changes hands.

The challenge with receivables is that not all customers pay. Some receivables will ultimately prove uncollectable, and GAAP requires the use of the allowance method to estimate and record bad debt expense before specific accounts are identified as uncollectable. The allowance for doubtful accounts is a contra-asset that reduces the gross accounts receivable balance to the net amount expected to be collected.

The allowance can be estimated using a percentage of credit sales or an aging analysis. The aging analysis is more accurate: it categorises receivables by how long they have been outstanding (0-30 days, 31-60 days, 61-90 days, over 90 days) and applies progressively higher uncollectable percentage estimates to older receivables. Practise accounts receivable questions to build confidence with this topic.

The Bad Debt Journal Entries

When bad debt expense is estimated at period-end, the entry is: Debit Bad Debt Expense, Credit Allowance for Doubtful Accounts. This does not remove any specific account from the books — it simply establishes a reserve. When a specific account is actually written off as uncollectable, the entry is: Debit Allowance for Doubtful Accounts, Credit Accounts Receivable (for that customer). Notice that this write-off does not affect the income statement — the expense was already recognised when the allowance was established. This is the matching principle in action.

If a previously written-off account is subsequently collected, two entries are required: first reverse the write-off (Debit Accounts Receivable, Credit Allowance), then record the cash collection (Debit Cash, Credit Accounts Receivable).

Measuring Receivables Performance

Two key ratios measure how efficiently a company manages its receivables. The accounts receivable turnover ratio equals net credit sales divided by average accounts receivable. A higher ratio indicates faster collection. Days sales outstanding (DSO) — also called the average collection period — equals 365 divided by the receivable turnover ratio, and represents the average number of days it takes to collect payment after a sale.

DSO should be compared to the company's stated payment terms. If a company offers net 30 terms but its DSO is 65 days, collections are slow relative to terms — a warning signal about customer credit quality or the effectiveness of the collections function.

Accounts Payable: Recording and Management

When a business purchases goods or services on credit, it records: Debit Inventory (or Expense), Credit Accounts Payable. Payment terms dictate when the amount is due. Common terms include net 30 (full payment due in 30 days) and 2/10, net 30 (a 2 percent discount if paid within 10 days, otherwise full payment in 30 days).

The early payment discount decision has a financial dimension. Forgoing a 2/10 discount to hold cash for 20 additional days implies an annualised interest rate of approximately 36.5 percent — far more expensive than virtually any other form of borrowing. Companies with access to cheap credit should generally take early payment discounts.

Accounts Payable as a Financing Tool

Extending payables — taking longer to pay suppliers — effectively functions as short-term financing. It reduces the cash the company needs to tie up in working capital. This is why accounts payable days (AP days = average AP ÷ daily COGS) appears in the cash conversion cycle calculation. A longer AP days figure reduces the cash conversion cycle, freeing up cash for other uses.

However, consistently paying late damages supplier relationships, may result in less favourable terms in future negotiations, and signals financial distress to credit analysts. The optimal payables management balances the financing benefit of extended terms against these relationship costs.