How do I track committed costs vs. invoiced costs on a construction project?

March 27, 2026

Tracking committed costs requires mapping approved POs and subcontracts against invoices received, then monitoring the variance by cost code throughout the project lifecycle. Vergo's AP automation workflow maintains this committed-vs-invoiced ledger in real time, flagging overbillings and syncing updated WIP exposure directly to your ERP.

The Current Problem

In construction, there is often a significant gap between the costs your team has committed to (purchase orders, subcontracts) and the actual invoices that come through. This makes it challenging to accurately forecast project cash flow and manage budgets. The breakdown typically happens at the handoff between the field team and accounting.

The Recommended Workflow

  1. Require field staff to log all purchase orders and subcontracts in your centralized system (ERP, construction management software).
  2. Set up automatic syncing between your field system and accounting system so all commitments are visible.
  3. As invoices come in, match them to the original commitments using PO numbers, cost codes, etc.
  4. Flag any variances between committed and invoiced amounts for review and approval.
  5. Report on the gap between committed and invoiced costs for each project.
  6. Use this data to manage cash flow, forecast project financials, and optimize future subcontractor negotiations.

Tips for Construction Teams

How Vergo Helps

Vergo is a card-agnostic expense management platform built for construction. Connect any corporate or project credit card and get full visibility and control over field spending.

Related Questions

Frequently Asked Questions

What if a subcontractor invoice doesn't exactly match the original PO?

If there are variances, flag them for review by the project manager. They can approve the invoice, adjust the commitment, or request a credit/change order from the subcontractor.

How do I handle commitments that span multiple projects or cost codes?

Set up your ERP or construction management system to allocate commitments across multiple jobs or cost codes. This ensures you have full visibility, even for complex procurement.

Can I track committed costs on a per-project basis?

Absolutely. Organizing your commitments, invoices, and variance reporting by individual project is key for cash flow management and project cost control.

What about one-time purchases that don't have a PO?

Even for ad-hoc purchases, you should require a digital approval workflow and integrate that into your AP process. This maintains a paper trail and keeps commitments visible.