How to Review a Subcontractor Invoice Before Payment

Learn how to review subcontractor invoices before payment by verifying the vendor, authorized work, job assignment, duplicate entries, coding, and approval.

Every subcontractor invoice affects your cash flow and your job profitability. Before payment goes out, your business should confirm the charge is authorized, accurate, and assigned to the correct project. A consistent review process supports cleaner QuickBooks records, reliable job costing, and better payment decisions.

We’ve covered how to build a complete subcontractor file and the workflow that keeps it current. This post is the final piece, what to check every single time an invoice actually lands on your desk.

1. Confirm the Subcontractor

Match the invoice to the approved subcontractor record. Verify the legal or business name, contact information, payment instructions, and the QuickBooks vendor record. Don’t create a new vendor just because the name appears slightly differently on the invoice. Check for an existing record first.

2. Identify the Correct Job

The invoice should clearly identify which project the work belongs to. Look for the project or customer name, service address, work dates, and a purchase order or work order number when one’s used. If the job isn’t clear, confirm it before you enter the cost.

3. Match the Invoice to the Authorized Work

Compare the invoice to the agreement, estimate, purchase order, approved scope, or change order. Confirm the work performed, quantity or hours, labor rates, material charges, agreed pricing, completion dates, and any additional charges. Extra labor, materials, return trips, equipment rental, disposal fees, and other added costs should all have supporting approval. The invoice should reflect exactly what the business actually authorized.

4. Check for Duplicate Billing

Before entering the invoice, search QuickBooks for the same invoice number, date, amount, and vendor. This quick check helps prevent the same invoice from being entered or paid twice, which happens more often than most owners realize.

5. Confirm Required Records Are Current

Before payment, confirm the subcontractor remains approved and that any records required by your payment policy are current, which may include the W-9, agreement, insurance records, licenses, or verified payment information. Keep this check simple and consistent every time.

6. Record the Cost Correctly in QuickBooks

Enter the invoice using the correct vendor, expense or cost of goods sold account, customer or project, class or location when used, billable status when applicable, payment terms, and due date. Subcontractor costs should be assigned to the correct project whenever possible. Without that connection, you can’t actually see the true cost or profitability of the job, no matter how clean the rest of your books look.

7. Document Approval

The record should show who reviewed and approved the invoice, whether that’s project manager confirmation, owner approval, office review, or bookkeeping verification, along with notes about any changes or exceptions. Your bookkeeping team should never have to guess whether an invoice is ready for payment.

Use One Approval Test

Before payment, confirm the invoice is from an approved subcontractor, matches the authorized work, hasn’t already been entered, and is assigned to the correct job in QuickBooks. The goal isn’t to slow down payment. It’s to make sure every subcontractor invoice is accurate, authorized, and connected to the correct project before money leaves the business. That’s what supports a professional payment process and gives you genuinely reliable information about job costs and profitability.

Are subcontractor costs being entered against the correct jobs in QuickBooks? Comment TOOL KIT to learn how the QuickBooks Pro Tool Kit helps you manage bills, vendor payments, and project costs correctly.