Question

What is a difference between ZBB and Traditional Budgeting?

Answer 1

Short version
- Zero-Based Budgeting (ZBB): every budget cycle starts from zero; each program/activity/expense must be justified from scratch.
- Traditional (incremental) budgeting: this year’s budget is last year’s budget plus/minus adjustments; only changes need explaining.

Key differences
- Starting point: ZBB = zero base; Traditional = prior-year base.
- Justification: ZBB requires full justification of all items; Traditional requires justification mostly for changes.
- Focus: ZBB focuses on activities and outcomes to allocate resources; Traditional focuses on line-item or historical amounts.
- Incentives: ZBB can expose inefficiencies and reallocate funds to higher-value activities; Traditional can perpetuate waste and protect established spending.
- Time and cost: ZBB is more time-consuming and resource-intensive to prepare; Traditional is quicker and easier.
- Frequency/use: ZBB is often used when cutting costs, reorganizing, or seeking strategic reallocation; Traditional is common for stable, routine operations.
- Complexity and acceptance: ZBB requires strong data/process discipline and can meet resistance; Traditional is simpler and familiar.

When to use each
- Use ZBB when you need transparency, major cost reductions, or to realign spending with strategy.
- Use Traditional budgeting when operations are stable and you need a low-effort, predictable budgeting process.

Example
- Traditional: Department had $1,000,000 last year; this year requests $1,030,000 (3% increase) and explains the increase.
- ZBB: Department starts at $0 and must justify each activity to receive any of the $1,000,000.