Budget Log
EVM Terms
Reviewed by forProject Technology - updated Oct 2026
Quick definition: The Budget Log is a log that tracks changes to the Contract Budget Base (CBB) and other important values over the life of the project.
The Budget Log is a running record of every change to a project's key budget values, from the contract level down to individual Control Accounts and Summary Level Planning Packages (SLPPs), as well as the balances in Management Reserve (MR) and Undistributed Budget (UB). Other values tracked include, for example, Total Allocated Budget (TAB), Negotiated Contract Cost (NCC), Authorized Unpriced Work (AUW), Distributed Budget, UB, and MR.
What this means for you
The Budget Log provides a traceable record of all changes to the Contract Budget Base (CBB) and other related budget components over the life of the project. Without a comprehensive, integrated log of every budget change, it would be very hard to reconstruct how the baseline evolved.
Also known as
Master Budget Log
Used in
Baseline Change Control; project audits and surveillance reviews
See also
FAQ
Is the Budget Log part of the EVM System?
Yes. The Budget Log is part of the EVM System. The current budget values show where the baseline stands, and the Budget Log shows how it got there, recording each change and the reason for it.
Who uses the Budget Log?
Project controls staff use it to record each budget change and the reason for it. Project Managers and Control Account Managers (CAMs) use it to track how their budgets have changed. Customers, auditors, and reviewers use it to trace how the baseline evolved over the life of the project.
Definition maintained by forProject Technology.
© 2026 forProject Technology, Inc.
© 2026 forProject Technology, Inc.
