Control accounts Revision Notes

Control accounts act as summary accounts in the general ledger that consolidate all transactions recorded in the subsidiary ledgers — specifically, the purchases ledger and the sales ledger. The purchases ledger records details of credit purchases from suppliers, while the sales ledger records credit sales to customers.

By maintaining control accounts, a business can monitor the total amounts owed to suppliers (creditors) and owed by customers (debtors) without examining individual accounts. This summarisation aids in detecting errors, managing cash flow, and preparing financial statements efficiently.

Control accounts also facilitate internal control by providing a check against the detailed ledger balances, although reconciliation is beyond the scope here. They help ensure that the total of individual ledger balances matches the control account balance, signalling accuracy in recording transactions.

• Summarise transactions from subsidiary ledgers.
• Monitor total creditors and debtors balances.
• Support internal control and error detection.

Control accounts are updated using information from various books of prime entry, which record original transactions before posting to ledgers. The key books of prime entry relevant here include:

The Purchases Day Book: records all credit purchases from suppliers.

The Sales Day Book: records all credit sales to customers (debtors).

• Purchases Day Book provides credit purchase data for the purchases ledger control account.
• Sales Day Book provides credit sales data for the sales ledger control account.
• Other books like the Cash Book and Returns Books also provide data for control accounts.

Control accounts incorporate a range of transactions affecting the balances of creditors and debtors. Understanding how each transaction type affects the control account is essential for accurate preparation.

Credit Purchases (Purchases Ledger Control Account): Increase the amount owed to suppliers (credit balance).

Credit Sales (Sales Ledger Control Account): Increase the amount owed by customers (debit balance).

• Receipts from debtors reduce the sales ledger control account balance (debit).
• Payments to creditors reduce the purchases ledger control account balance (credit).
• Cash discounts allowed to customers reduce the sales ledger control account (debit).
• Cash discounts received from suppliers reduce the purchases ledger control account (credit).
• Returns outwards (purchases returns) reduce the purchases ledger control account (credit).
• Returns inwards (sales returns) reduce the sales ledger control account (debit).
• Irrecoverable debts are written off by crediting the sales ledger control account (debit).
• Dishonoured cheques increase the sales ledger control account (debit). They represent payments initially received but later rejected by the bank, so the amount is still owed by the customer.

Interest on overdue accounts increases the sales ledger control account (debit) when charged to customers for late payment.

Contra entries occur when a customer is also a supplier. The amount owed by the customer is offset against the amount owed to the supplier, affecting both control accounts equally but in opposite directions.

Refunds to customers reduce the sales ledger control account (debit).

• Contra entries reduce both sales and purchases ledger control accounts by the same amount.
• Interest charges increase the sales ledger control account balance.
• Refunds decrease the sales ledger control account balance.

To prepare a control account, start with the opening balance (debit for sales ledger, credit for purchases ledger). Then, record all relevant transactions on the appropriate side: debit side for increases in amounts owed by customers (sales ledger) or decreases in amounts owed to suppliers (purchases ledger), and credit side for the opposite.

For example, in the sales ledger control account: credit sales and dishonoured cheques are debited; receipts from customers and cash discounts allowed are credited.

After recording all transactions, calculate the closing balance by subtracting the smaller side total from the larger side total. The balance will be debit for sales ledger (amount owed by customers) and credit for purchases ledger (amount owed to suppliers).

• Begin with opening balance.
• Record all transactions with correct debit or credit entries.
• Calculate closing balance as difference between debit and credit totals.
• Closing balance reflects amount owed by customers (sales) or owed to suppliers (purchases).