Useful budget control compares the approved budget with recorded costs, open commitments and the estimated cost of remaining work. Looking only at invoices leaves part of the project picture out.
Agree on the budget baseline
Comparing plan and actual requires a shared baseline: the approved budget, the cost categories it includes and changes made since approval. If the plan changes without a record, it becomes difficult to distinguish improved performance from a changed comparison point.
Choose a level of detail that the team can keep current. An elaborate breakdown that nobody maintains may suggest precision without reliable underlying data.
Separate actual costs from commitments
A received invoice is only one source of information. An approved order that has not yet been billed represents a commitment. Work that has not been ordered may create further expected costs.
Avoid double counting. When an invoice is recorded against an order, check how the actual cost and open balance are calculated. Do not automatically add the entire order value to all of its invoices.
An example of the complete cost picture
Consider an illustrative $500,000 budget category. Actual costs of $280,000 are recorded, another $150,000 remains in open commitments, and the team estimates $100,000 of additional work beyond those commitments.
The expected total is $530,000. Recorded costs are still below budget, but the complete picture shows a projected $30,000 variance that needs review. This is an illustration; estimates should be updated to reflect the project's actual position.
Understand why the variance exists
A variance can come from quantities, prices, scope changes or delayed data entry. Each cause calls for a different action. Start with significant categories and examine the orders and documents behind them.
Ask what changed, what the expected impact is and who owns the next step. A report becomes useful when it leads to a decision the team can follow up.
- Which costs have not yet been recorded?
- Which purchase orders remain open?
- What work is still needed to finish?
- Which planning assumption changed?
- What is the next action, and who owns it?
Establish a regular update cycle
Set a review schedule and assign an update owner for each project. Before a cost review meeting, confirm that key documents are recorded and open commitments represent work that actually remains.
Novapro displays budget vs. actual information and reports based on the data in the application. Reliability depends on the team linking costs to projects and keeping the records current.
Frequently asked questions
How do you calculate the expected total project cost?
Add recorded actual costs, outstanding commitments not already included in those costs, and an estimate of additional work not yet ordered. Make sure each component is counted only once.
Is a projected overrun the same as overspending to date?
No. Actual costs can still be below budget while commitments and remaining work indicate a projected overrun. Forecasting lets you review the gap before every invoice arrives.
Keep reading
How to Build a Construction Procurement Workflow →
From Excel to Purchasing Software: Moving Data and Workflows →
Construction Procurement KPIs: What to Measure and How to Calculate It →