Zero-Based Budgeting, commonly abbreviated as ZBB, is a budgeting method that requires organisations to justify their expenses from the beginning of each budgeting period. Rather than automatically carrying forward previous budgets, businesses assess each activity, cost and resource requirement based on current needs and strategic priorities.
This approach helps companies identify unnecessary expenditure, control costs and allocate resources to initiatives that are more likely to generate value or improve profitability.
Zero-based budgeting was developed in the 1970s by Peter Pyhrr, a former accounting manager at Texas Instruments. Its primary objective is to help organisations reduce avoidable costs and manage their financial responsibilities more effectively.
ZBB can be used as a tactical component of a company’s broader strategic planning process. It aims to ensure that expenditure remains controlled and that available resources are used as efficiently as possible. By identifying costs that do not contribute sufficient value, companies can improve profitability and redirect their budgets towards higher-priority activities.
The budgeting process also helps translate long-term financial strategies into annual plans across different business units. This supports stronger alignment between organisational objectives and operational activities.
Companies applying ZBB generally rebuild their budgets from a zero base each year. However, this does not mean that previous spending patterns or historical data are completely ignored. Instead, past expenditure is not automatically accepted as necessary. Each cost must be reviewed and justified according to current requirements, expected benefits and strategic relevance.
Zero-based budgeting can be applied to a wide range of cost categories, including capital expenditure, research and development, operational expenses and procurement. It can also be adapted to the specific needs of different industries.
Unlike traditional budgeting, which often adjusts previous budgets incrementally, ZBB examines each expense and activity in detail. Its distinguishing feature is the requirement for justification. Every budget item must have a clear business purpose and demonstrate how it supports organisational goals.
ZBB allows organisations to transform spending into a more strategic decision-making process. It helps identify cost-saving opportunities, improve budget flexibility and direct resources towards activities with stronger revenue or growth potential.
Since each expense is reviewed individually, companies can more easily identify high-value initiatives and prioritise them over activities that deliver limited results. In many cases, this approach also supports the reduction of unnecessary costs.
In summary, zero-based budgeting is a strategic approach that helps align company expenditure with business objectives, financial priorities and long-term plans.
