Introduction:
In the process of bank reconciliation, uncollected cheques play an important role. Uncollected cheques refer to the cheques issued by a company but have not been presented for payment by the recipients to their respective banks. These cheques are recorded in the company's passbook but have not yet been reflected in the bank statement.

Explanation:
When preparing a bank reconciliation statement, it is essential to adjust for any transactions that are recorded in one record but not in the other. In the case of uncollected cheques, they need to be added to the bank reconciliation statement to ensure that the balances in the passbook and the bank statement are reconciled.

Reasons for adding uncollected cheques:
1. Timing difference: The timing of cheque presentation can cause a discrepancy between the balances in the passbook and the bank statement. If a cheque is issued near the end of the month but not presented for payment until the following month, the passbook balance will include the cheque amount, while the bank statement will not. Adding the uncollected cheque to the bank reconciliation statement helps to account for this timing difference.

2. Cash book entry: Uncollected cheques are recorded in the company's cash book when they are issued. Since the cash book is used to prepare the passbook, the uncollected cheques will be included in the passbook balance. However, these cheques have not been processed by the bank and, therefore, do not appear in the bank statement. Adding them to the bank reconciliation statement ensures that the passbook and bank statement balances are adjusted accordingly.

3. Reconciliation purpose: The main objective of preparing a bank reconciliation statement is to identify and explain the differences between the passbook and the bank statement balances. By adding the uncollected cheques to the bank reconciliation statement, these discrepancies are properly accounted for, leading to an accurate reconciliation.

Conclusion:
In summary, uncollected cheques are added in the bank reconciliation statement because they represent a timing difference between the passbook and the bank statement balances. By adding them, the balances can be adjusted to ensure an accurate reconciliation.