Construction Invoice Template
Download a construction invoice template to bill labour, materials, equipment, subcontractor work, variations, tax, retention, and project charges clearly.
Create Clear, Professional Construction Invoices
A construction invoice gives subcontractors a structured way to bill customers for completed work, approved materials, equipment use, subcontractor charges, variations, and other project costs. A clear invoice helps the customer understand what is being charged, which period or work package it relates to, and when payment is due.
This Construction Invoice Template is designed for subcontractors, specialty contractors, service contractors, project managers, accounts teams, and construction business owners. It can be used for fixed-price work, progress billing, time-and-material work, service calls, approved change orders, and final accounts.
What Is a Construction Invoice?
A construction invoice is a formal request for payment for work performed, materials supplied, equipment used, or other approved charges under a construction contract, purchase order, work order, or service agreement.
Depending on the billing method, the invoice may show completed quantities, labour hours, material costs, equipment charges, percentage completion, approved variations, retention, previous payments, tax, and the amount currently due.
When to Use This Template
- Billing for completed fixed-price construction work
- Submitting monthly or milestone-based progress invoices
- Charging for time-and-material work
- Billing approved change orders or additional work
- Invoicing service calls, repairs, and maintenance work
- Charging for materials, equipment, permits, and delivery
- Applying retention, credits, deposits, and previous payments
- Preparing final invoices and closeout statements
Who Should Use This Template?
This template is suitable for subcontractors, specialty contractors, tradespeople, service contractors, project managers, contract administrators, accounts teams, and business owners responsible for billing construction work.
It can be adapted for electrical, plumbing, HVAC, roofing, concrete, steelwork, framing, drywall, painting, flooring, glazing, fire protection, demolition, excavation, landscaping, waterproofing, masonry, civil works, and other construction trades.
What a Construction Invoice Should Include
| Invoice Section | Purpose |
|---|---|
| Contractor Details | Shows the contractor’s business name, address, contact details, company number, and tax registration details where applicable. |
| Customer Details | Identifies the customer, billing address, accounts contact, and project contact. |
| Invoice Information | Records the invoice number, issue date, due date, billing period, and invoice status. |
| Project References | Links the invoice to the job, contract, purchase order, work order, estimate, or change order. |
| Work Description | Explains the labour, materials, equipment, service, milestone, or work package being billed. |
| Quantity and Rate | Shows the measured quantity, unit of measure, rate, and line-item amount. |
| Progress Billing | Records contract value, previous billing, current billing, percentage complete, and remaining value. |
| Change Orders | Separates approved additions and deductions from the original contract amount. |
| Retention | Shows retention withheld, retention released, and the current net amount due. |
| Tax | Calculates applicable tax separately and identifies the tax treatment of each charge. |
| Payments and Credits | Accounts for deposits, prior payments, credits, and adjustments. |
| Payment Terms | States the due date, payment instructions, remittance details, and late-payment terms where applicable. |
How to Use the Template
- Enter the contractor, customer, project, and contract information.
- Assign a unique invoice number and confirm the invoice date and due date.
- Select the billing method, such as fixed price, progress, milestone, unit rate, or time and materials.
- List each labour, material, equipment, subcontractor, or service charge separately.
- Reference the applicable cost code, work order, purchase order, or approved change order.
- Enter quantities, rates, and line-item amounts.
- Apply approved credits, deposits, retention, discounts, and previous payments.
- Calculate net value, tax, gross value, and the current amount due.
- Attach or reference supporting records such as signed timesheets, delivery notes, receipts, or progress reports.
- Review the invoice against the contract and approval requirements before issuing it.
An electrical subcontractor issues a monthly progress invoice for a commercial fit-out. The original contract value is £180,000, and £72,000 was billed previously. The current application includes £28,000 for containment and cable installation, £6,500 for an approved lighting change order, and a £1,200 credit for omitted fittings. After applying 5% retention and calculating tax, the invoice shows the current amount due and the remaining unbilled contract value.
Best Practices for Construction Invoicing
- Use a unique invoice number for every invoice.
- Match the customer’s required billing format and submission process.
- Reference the correct project, purchase order, contract, and work order.
- Separate original contract work from approved change orders.
- Show labour, materials, equipment, and other charges clearly.
- Include signed or approved supporting documentation where required.
- Apply retention and tax consistently with the contract and local requirements.
- Reconcile prior invoices, payments, credits, and deposits before issuing the next invoice.
- Check that the due date reflects the agreed payment terms.
- Keep a copy of the issued invoice and all supporting records.
Common Construction Invoice Mistakes
- Submitting an invoice without the required purchase-order or contract reference
- Billing unapproved change-order work as part of the original contract
- Using vague descriptions such as “labour and materials” without detail
- Failing to attach signed timesheets, receipts, or delivery records
- Applying the wrong retention or tax treatment
- Ignoring prior payments, credits, or deposits
- Billing more than the approved contract or work-order value
- Using duplicate invoice numbers
- Sending the invoice to the wrong billing contact or portal
- Failing to reconcile the final invoice with the completed scope and approved changes
Frequently Asked Questions
What is the difference between an invoice and a payment application?
An invoice is a request for payment. A payment application is often a more detailed progress-billing submission that may include a schedule of values, percentage completion, retention, previous applications, and supporting certification. Some projects require both.
What is retention on a construction invoice?
Retention is an amount withheld from payment until defined contractual conditions are met. It is usually calculated as a percentage of approved work and should be shown separately from the net amount payable.
Can an invoice include change-order work?
Yes, but the change should be approved or otherwise billable under the contract. Show the change-order reference, description, approved value, and current amount billed separately from the original scope.
How should time-and-material work be invoiced?
List labour classifications, hours, rates, materials, equipment, travel, and other approved charges separately. Attach signed timesheets, receipts, delivery tickets, or other records required by the customer.
Should tax be included in the line-item rate?
That depends on the agreed pricing basis and applicable tax rules. The invoice should make it clear whether prices are tax-exclusive or tax-inclusive and show the tax calculation separately where required.
What should be included on a final construction invoice?
A final invoice should account for the original contract, approved changes, previous invoices, payments, credits, retention, tax, and the final amount due. It should also identify any retention that remains withheld or is being released.
Make Every Charge Easy to Review
A well-structured construction invoice helps subcontractors present completed work clearly, support charges with project references, and reduce delays caused by missing or inconsistent information. It also creates a reliable billing record for project closeout and payment follow-up.
An XLSX workbook provides a practical starting point for creating and tracking invoices. As billing activity grows, SimplySub can help subcontractors organise estimates, jobs, change orders, purchase orders, expenses, time records, invoices, documents, and job-cost information.