In most cases, an employee cannot take more leave days than the balance available in their leave account. If an employee has 40 earned leave (EL) days, they typically cannot take 45 days of leave. However, there might be some exceptions or specific circumstances depending on your organization's policies, employment laws, and the terms of the employment contract.
To provide accurate information, I would recommend referring to your organization's official leave policy, employment contract, or consulting with your HR department. In many cases, leave policies outline the maximum consecutive days an employee can take off and any special conditions or approvals required for extended leave periods.