---
title: "Key principles of project budgeting"
subject: "ICT Project Management"
chapter: 9
key: "semester_7/ict_project_management:budgeting-principles"
source: https://www.bctengineer.com/q/semester_7/ict_project_management/budgeting-principles
site: BCT Engineering
---

# Key principles of project budgeting

ICT Project Management · Chapter 9: Project Cost Management

- Asked in: year not given
- Video: [How to Create a Project Budget](https://www.youtube.com/watch?v=ecs9oUe2dZk) — Adriana Girdler
- Answer checked by Claude Opus 5.5 (high effort) on 2026-10-14
- Page: https://www.bctengineer.com/q/semester_7/ict_project_management/budgeting-principles
- Whole chapter: https://www.bctengineer.com/md/semester_7/ict_project_management/chapter-9

## Question

What are the key principles of project budgeting?

## Short answer

Key principles: base budget on the WBS, use realistic estimates, time-phase with schedule, include all cost types and reserves (contingency and management), obtain approval, assign accountability, document assumptions, monitor with earned value, and control changes formally.

## Answer

Project budgeting should follow sound principles so that the budget is realistic, accepted and controllable. Key principles are as follows.

1. **Base the budget on the WBS and scope**: all work should have costs assigned; the budget covers 100% of the scope.
2. **Use realistic estimates**: involve people who will do the work, and use historical data and several techniques.
3. **Link budget with schedule (time-phased)**: costs are allocated to periods when work occurs, giving a cumulative cost baseline.
4. **Include all cost types**: direct, indirect, labour, materials, equipment, travel, training, overheads, taxes.
5. **Include reserves**: contingency reserve for known risks and management reserve for unknown risks, clearly separated and controlled.
6. **Be consistent with organisational limits**: reconcile with funding limits and cash flow.
7. **Get approval and commitment**: sponsor and managers must accept the budget (baseline).
8. **Make people accountable**: assign budgets to control accounts and responsible managers.
9. **Document assumptions and basis of estimates**.
10. **Track and control**: monitor actual cost versus budget, use earned value, take corrective action.
11. **Change only through change control**: revise the baseline only after formal approval.
12. **Review regularly and update forecasts**.
13. **Keep the process transparent** and communicate budget status.
14. **Consider life-cycle cost**, not just development cost.
15. **Avoid padding**: hidden padding in each item gives poor decisions.

| Principle | Result |
|---|---|
| WBS-based | Nothing is missed |
| Time-phased | Cash flow clarity |
| Reserves | Handles uncertainty |
| Approved baseline | Accountability |
| Change control | Stable budget |

**Example:** A school ERP project budgets Rs 15 lakh by month, with a 10% contingency, and any extra module request requires approval before budget revision.

## Check yourself

The answer's key points as multiple-choice questions, with the correct option and why.

1. Why base the budget on the WBS?
   A. All work gets costs, so the budget covers 100% of scope
   B. To avoid reserves
   C. To skip approvals
   D. To hide costs
   Answer: A. WBS-based budgeting ensures nothing is missed. (Key point: WBS-based)

2. How should reserves be treated?
   A. Hidden padding
   B. Not used
   C. Mixed into every item
   D. Contingency for known risks and management reserve for unknown, separated and controlled
   Answer: D. Reserves should be explicit and separately controlled. (Key point: Reserves)

3. How may the budget baseline be revised?
   A. Never
   B. Any time by the team
   C. By the supplier
   D. Only after formal approval through change control
   Answer: D. Changes go through change control for a stable budget. (Key point: Change control)

## Related in ICT Project Management

- [Roles of key project members](https://www.bctengineer.com/question.md?key=semester_7%2Fict_project_management%3Akey-project-member-roles) — ICT Project Management, chapter 4
- [Cost budgeting](https://www.bctengineer.com/question.md?key=semester_7%2Fict_project_management%3Acost-budgeting) — ICT Project Management, chapter 9
- [Principles for creating WBS](https://www.bctengineer.com/question.md?key=semester_7%2Fict_project_management%3Awbs-principles) — ICT Project Management, chapter 7
- [Principles of scheduling](https://www.bctengineer.com/question.md?key=semester_7%2Fict_project_management%3Ascheduling-principles) — ICT Project Management, chapter 8

## Related in other subjects

- [Define budgeting; types; purpose for new project](https://www.bctengineer.com/question.md?key=semester_7%2Fproject_engineering%3Abudget-types-purpose-new-project) — Project Engineering, chapter 6
- [Finance sources; capital budgeting steps; NPV](https://www.bctengineer.com/question.md?key=semester_7%2Fproject_engineering%3Asources-project-finance-steps-capital-budgeting) — Project Engineering, chapter 6
- [Capital budgeting and its features](https://www.bctengineer.com/question.md?key=semester_7%2Fproject_engineering%3Acapital-budgeting-process-features) — Project Engineering, chapter 6
- [Capital budgeting importance and techniques](https://www.bctengineer.com/question.md?key=semester_7%2Fproject_engineering%3Acapital-budgeting-importance-techniques) — Project Engineering, chapter 6