Contractor Invoice Template: What to Include for Labor and Materials

Short answer

A contractor invoice template should separate labor, materials, equipment, approved variations, taxes, deposits, and the remaining balance. Include the project address or reference, work period, customer details, invoice number, due date, payment instructions, and any required license or tax information.

Start with the contractor invoice template only if its fields fit your business, or create a tailored document with the free invoice generator. The important part is an accurate, reviewable record of the work.

Core contractor invoice fields

Include:

• Contractor or business name, contact details, and registration information when required
• Customer and billing address
• Project name, site address, and purchase order or job number
• Invoice number and invoice date
• Work period or milestone completed
• Labor, materials, equipment, and subcontractor charges
• Approved change orders or variations
• Deposit paid, amount due, and balance remaining
• Tax, payment terms, due date, and payment instructions

Use a separate line for items that the customer or project manager needs to approve.

Labor and materials example

A contractor invoice might show:

• Site preparation: 16 hours at USD 85 - USD 1,360
• Installation labor: 24 hours at USD 85 - USD 2,040
• Electrical materials: 1 package - USD 680
• Equipment hire: 2 days at USD 120 - USD 240
• Subtotal: USD 4,320

Use descriptions that identify the area, task, quantity, or service period. The invoice line item description guide includes more examples of clear wording.

Include change orders and variations

If the customer approved extra work, show the change order reference and describe what changed. Do not quietly add an unexpected amount to a copied invoice.

Example:

Approved variation CO-03: additional drainage work and materials - USD 750

Keep the approval email, signed change order, estimate, or other supporting record with the invoice. This makes disputes easier to resolve.

Deposits and progress payments

Large projects often use a deposit, progress claim, or milestone schedule. Show the amount previously paid and the current amount due:

• Contract value to date: USD 8,500
• Deposit received under INV-1080: -USD 2,000
• Progress payment due: USD 3,250
• Remaining contract balance after payment: USD 3,250

Use a unique invoice number for every claim. The deposit invoice guide explains how to connect upfront payments to a final balance.

Tax and retention amounts

Construction and trade invoices can involve sales tax, VAT, GST, withholding, retention, or other project-specific deductions. Show each amount separately when required and confirm the treatment for your jurisdiction and contract.

If a customer retains part of the amount until completion, label the retention clearly rather than hiding it in the total. For VAT or GST field guidance, review the VAT and GST invoice article.

Payment terms and invoice status

State whether the claim is due on receipt, Net 7, Net 15, Net 30, or another agreed date. Add the exact due date. Track each invoice as Draft, Sent, Partially Paid, Paid, or Overdue using the invoice status tracking workflow.

Keep the signed estimate, purchase order, timesheets, delivery notes, receipts, and final PDF together. Consistent invoice record keeping helps with project closeout and tax review.

FAQ

Should labor and materials be on separate lines?

Usually yes. Separating them makes the invoice easier to review, especially when the customer needs to compare labor, materials, and approved variations with the estimate.

Can a contractor invoice for a deposit and labor together?

Only when the arrangement is clear. A deposit request and a progress or final claim should be distinguishable, with the deposit credited correctly in later records.

What if the project price changes?

Show the approved change order or variation as a separate line and keep the supporting approval. Do not overwrite the original estimate or sent invoice.