Yes, leading zeros do matter in bank account numbers. The inclusion or exclusion of leading zeros can affect the accuracy and validity of the account number. Here's what you need to know:

1. Importance of leading zeros: In some cases, bank account numbers may start with one or more leading zeros. These zeros are significant and should not be ignored. They form an integral part of the account number and must be included when providing or using the account number for any banking transactions [1].

2. Bank policies: Different banks may have varying formats for their account numbers. Some banks may require a specific number of leading zeros, while others may not. It is important to refer to your specific bank's guidelines or contact their customer service to determine the correct format for your account number [3].

3. Transferring funds: When transferring funds from one bank to another, it is generally recommended to include all leading zeros in the account number. This ensures that the funds are accurately directed to the intended recipient's account. Omitting the leading zeros may result in the transfer being rejected or misdirected [3].

4. Error correction: In certain cases, banks may be able to make minor corrections to account numbers that have minor errors, such as missing leading zeros. However, it is always best to provide the correct and complete account number to avoid any potential issues or delays in processing transactions [2].

In summary, leading zeros in bank account numbers do matter. It is important to include all leading zeros when providing or using your account number for banking transactions to ensure accuracy and avoid any potential issues.

Learn more:

1. Do leading zeros matter in bank account numbers? - Quora
2. Solved: On my bank account information I forgot to add six zeros in front of my bank account number. At the moment I didn't think it would be a problem but now I'm a bit worried.
3. Zeros (0) at The Beginning of Bank Account Number - OzBargain Forums