Leeworthy Ices is undergoing significant changes due to Brexit, aiming for growth through new consumer markets and possible expansion in manufacturing capacities. Traditional budgeting approaches are insufficient, as they would not accurately capture the changing business scenarios and capitalize on new opportunities. Alternative budgeting systems, such as Activity-Based Budgeting (ABB) and Zero-Based Budgeting (ZBB), can better equip the company to adapt to these changes. To be effective, a robust mechanism is needed to periodically review the reflection of business operations and economic environment under the new legislative framework.