Web Development Invoice Template
Create professional invoices for web development services with clear project milestones, deliverables, and hourly work breakdowns. This web development invoice template is ideal for freelancers and agencies billing for website builds, landing pages, integrations, maintenance, and support retainers. Download instantly in PDF, Word, or Excel format.
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What to Include on a Web Development Invoice
Web development invoices should make scope and milestones obvious so clients can approve invoices quickly.
Client and project details- Client name and billing contact
- Project name
- Scope summary (short)
- Milestone/phase being billed
- Discovery and requirements
- UI implementation / frontend development
- Backend development and integrations
- CMS setup (WordPress, headless CMS, etc.)
- Testing and QA
- Deployment and launch support
- Monthly maintenance/support
- Hosting management (if you provide it)
- Content updates (hours)
- Performance and security monitoring
- Subtotal, tax (if applicable), total due
- Payment terms and instructions
Web Development Billing Models: Fixed Fee vs Hourly
Developers invoice projects using a few common models:
1) Fixed project fee
A single price for a defined scope. Works best when requirements are clear. Often tied to milestones (deposit + progress payments).
2) Hourly billing
Bill time spent on tasks and features. Works best for evolving projects, maintenance, and consulting.
3) Milestone billing
Fixed fee broken into phases (discovery, build, launch). Easier for clients to approve and for you to manage cash flow.
4) Monthly retainer
Ongoing support and maintenance for a recurring fee. Good for long-term client relationships.
Your invoice should match the model in your agreement and label milestones clearly to avoid disputes.
How to Invoice Web Development Deliverables
Web development scope can be vague unless deliverables are listed. Your invoice can reinforce what the client is receiving.
Deliverables examples- Number of pages or templates
- Key features (contact form, payments, bookings)
- Integrations (CRM, email, analytics)
- CMS configuration and user roles
- Performance optimization (if included)
- Use a “Deliverables” field for quick reference
- Keep line items aligned with the scope statement in your proposal
- Bill scope changes as separate line items (“Additional features”)
Website Maintenance Invoicing
Maintenance can be billed monthly or as hourly support. A maintenance line item should clarify what’s included.
Common maintenance inclusions- Minor content updates
- Plugin/CMS updates
- Security checks
- Small bug fixes
- Uptime monitoring (if offered)
- Hours included per month (if applicable)
- Response time expectations
- What is not included (major redesigns, new features)