Free service invoice templates

Frequently Asked Questions

• How should I bill for services—hourly or project-based?

  Both models work depending on your business. Hourly billing provides transparency and works well for ongoing work. Project-based (flat fee) billing is better when scope is clear and clients prefer predictable costs.

• What details should a service invoice include?

  Include: detailed service descriptions, dates services were performed, hourly rates and hours worked (or project fee), any expenses or materials, subtotal, taxes, total amount due, and payment terms.

• Should I invoice before or after completing services?
  This depends on your agreement. Many service providers invoice after completion (especially for smaller projects), while others invoice at milestones or require deposits upfront. Establish payment terms clearly in your contract.
• How do I handle expenses on service invoices?
  Itemize reimbursable expenses separately from your service fees. Include receipts if required by your client. Some businesses mark up expenses slightly, while others pass through at cost—clarify this in your agreement.
• Can I invoice for partial project completion?

  Yes, milestone billing is common for larger projects. Break the project into phases and invoice as each milestone is completed. This improves cash flow and reduces risk for both parties.