How do I handle progress billing invoices from subcontractors?

Key takeaways

• Progress billing invoices must be matched to the approved schedule of values before payment to ensure accuracy and prevent overpayment.
• Approval workflows should route invoices by project, cost code, or amount depending on your organization's control structure.
• Integrating invoice data with your construction ERP eliminates manual re-entry and keeps job cost reporting current.
• Clear communication with subcontractors about approval status and payment timelines reduces disputes and strengthens relationships.
• Vergo processes subcontractor invoices through the same AI coding model as card spend and reimbursements, with project-based approval workflows that route by project, GL account, or amount.

Why progress billing requires special handling

Progress billing invoices from subcontractors differ from ordinary vendor bills because payment depends on work completed to date rather than a fixed purchase amount. Each invoice must be verified against the approved schedule of values to confirm that the billed percentage matches actual progress on site. Without this verification, contractors risk paying for work not yet performed or double-paying across multiple billing periods. The approval process must involve field supervisors who can confirm completion, project managers who track budget, and accounting staff who ensure contract compliance. This multi-step review makes progress billing more complex than standard accounts payable but essential for accurate job costing. Vergo uses inference to propose cost codes and project assignments from your accounting history, coding new vendors on first sight without maintaining keyword lists or rule libraries.

The recommended workflow for subcontractor progress bills

Subcontractors should submit invoices through a centralized system that automatically references the contract and schedule of values. The system matches line items on the invoice to the approved values and flags any discrepancies for manual review. Once verified, the invoice routes through the appropriate approval chain based on project, cost code, and dollar amount. Approvers receive notification and can review supporting documentation, previous billing history, and budget impact before authorizing payment. After approval, invoice data syncs to the construction ERP where it updates job cost records and the general ledger. The subcontractor receives confirmation of approval and the expected payment date, reducing follow-up calls and emails to the accounting team.

A practical example

A general contractor has a $500,000 electrical subcontract with a schedule of values broken into rough-in, trim, and fixtures. The electrician submits a progress bill for $150,000 covering 100% of rough-in and 20% of trim. The AP system pulls up the schedule of values and confirms that rough-in was budgeted at $200,000 and trim at $250,000, making the billed amounts $200,000 and $50,000 respectively for a total of $250,000. The submitted invoice of $150,000 is under the earned amount, so it passes initial validation. The invoice routes to the project superintendent who confirms rough-in is complete, then to the project manager who verifies budget availability, and finally to the controller for payment authorization. Once approved, the $150,000 posts to the job cost report under the electrical cost code. Vergo processes this type of invoice alongside card spend and reimbursements, with every coding decision showing why it was chosen so reviewers confirm in seconds instead of re-coding by hand.

Common issues and how to prevent them

Invoices that don't match the schedule of values create the most friction. Subcontractors may round percentages, include unapproved change orders, or bill for materials stored on site but not installed. Clear contract language about billing increments and stored materials prevents most disputes. Approval delays often stem from email-based routing where requests get buried in inboxes. A system that tracks approval status and sends reminders keeps invoices moving. Manual data entry into the ERP is time-consuming and introduces errors in cost codes or job numbers. Direct integration eliminates re-keying and ensures that job cost reports reflect approved invoices immediately. Poor visibility into payment timelines frustrates subcontractors and damages relationships, so automated status updates reduce unnecessary follow-up.

How Vergo handles this

Vergo processes subcontractor AP invoices alongside card spend and employee reimbursements through one coding model, so all project costs receive the same treatment. The platform uses inference to propose cost codes and project assignments from your accounting history, coding new vendors on first sight without maintaining keyword lists or rule libraries. Every coding decision shows why it was chosen, so reviewers confirm in seconds instead of re-coding by hand. Approval workflows route by project, GL account, or amount to fit how you control spend, or you can skip approval flows entirely and let policy flags catch only what breaks a rule. Transactions sync into your ERP or accounting software once they clear, and Vergo integrates with every construction accounting system. One platform, one coding approach, and one reconciliation for all project spend.

Related questions

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