When a check previously received from a debtor is dishonored, the debtor's account must be reinstated to reflect the outstanding debt. Since a debtor is an asset, increasing the balance requires a debit entry. Therefore, the sales ledger control account is debited to reverse the previous credit entry that was made when the check was initially received and recorded.

A debtor is an asset to the business. When a payment is received from a debtor, the asset value decreases. According to the rules of double-entry bookkeeping, a decrease in an asset account is recorded by crediting that account. Therefore, the accounts receivable control account must be credited to reflect the reduction in the amount owed by the debtor.

A schedule of accounts receivable is a supplementary report that lists all individual customer balances at a specific point in time. The total of this schedule must reconcile with the balance of the Accounts Receivable control account in the general ledger, ensuring that all credit sales and payments have been accurately recorded for each client.

The sales ledger, often referred to as the receivables ledger, contains individual accounts for each credit customer. The aggregate of all these individual balances represents the total amount owed to the business by its customers. In a well-organized accounting system, this total is reconciled with the sales ledger control account maintained in the general ledger to ensure accuracy and detect potential posting errors.

A Sales Ledger Control Account (or Debtors Control Account) tracks the total amount owed by customers. When a debt is deemed uncollectible and written off as a bad debt, it reduces the total amount of accounts receivable. Therefore, the entry is made on the credit side of the Debtors Control Account to reflect the decrease in the asset balance.

Sales returns reduce the amount owed by debtors. If the sales return was understated, the total credit to the debtors' accounts was insufficient. Therefore, an additional credit of $1,000 is required in the Sales Ledger Control Account (Debtor Control Account) to accurately reflect the reduction in receivables and correct the understatement.

Since the sales were recorded twice, the control account balance is overstated by $500. To correct this error, the account must be reduced by the excess amount. Because sales are recorded as debits in the sales ledger control account, a credit entry of $500 is necessary to reverse the duplicate entry and restore the account to its correct balance.

Charging interest to a debtor increases the amount they owe the business. Since debtors are assets, an increase in the balance must be recorded as a debit entry in the debtor control account to reflect the higher amount receivable.

A dishonored cheque reverses the initial receipt. Since the receipt was originally credited to the sales ledger control account (reducing the debtor balance), the dishonor must be debited to the sales ledger control account to reinstate the debt owed by the customer.

Charging interest to a customer increases the amount they owe the business. Since a debtor control account is an asset account, an increase in the balance is recorded by debiting the account. Therefore, the $500 omission must be corrected with a debit.