Free Web Developer Invoice Template & Generator
Create web development invoices for frontend, backend, full-stack projects, and maintenance retainers. Bill by hour, milestone, or project.
Currency
Amount already received from client
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How does a web developer invoice a client?
Web development invoices break the build into clear deliverables: design, front-end, back-end, integrations, and deployment. Describe each milestone or phase plainly and reference the agreed scope. Separate fixed-scope work from any hourly maintenance so the client can see what was a one-time build and what is ongoing.
Your invoice needs to describe the work in terms the client understands, not just "web development services." Break it down by what you actually built: custom contact form, responsive homepage redesign, WooCommerce integration, whatever applies. Include the project name or reference number if they gave you one. Their accounting department will ask for this when matching your invoice to their purchase order. Add your business registration number if you have one, and make the payment instructions obvious.
Most web developers ask for 50% upfront before starting any work. The remainder gets billed when you deliver the final product or hit agreed milestones for bigger projects. Net 15 or Net 30 terms are standard once you have established clients, but do not be afraid to ask for payment on delivery when you are new. Retainer arrangements work well for ongoing maintenance, billed monthly at the start of each period.
Send your invoice the moment you finish the work, not three weeks later when you remember. Clients pay faster when the project is fresh in their mind and the budget is still allocated. Also, never start the next phase of work until the previous invoice clears. This saves you from doing free work when a client ghosts you halfway through.
Typical line items
- Front-end development
- Back-end and database work
- Third-party API integration
- Responsive design implementation
- Deployment, testing and QA
- Hourly development outside scope
- Project milestone payment
- Monthly maintenance retainer
How the work is charged
Many web developers quote a fixed price per project broken into milestones, such as deposit, mid-build, and launch. Smaller tasks and change requests are billed hourly. Ongoing support often runs as a monthly retainer.
Payment terms and deposits
A deposit before work begins is common, with remaining milestones invoiced as each phase completes. Business clients often pay on net terms, while new clients may pay more upfront.
Tax and compliance
If you are registered for sales tax or VAT, show it as a separate line with your registration number. Selling digital services across borders can change how tax applies, so confirm what applies to you.
Frequently asked questions
How should web developers structure their invoices?
Bill by milestone (discovery, development, testing, launch), hourly with detailed time logs, or fixed project fee. Include hosting, domain, and third-party service costs as separate line items.
What are typical web development rates?
Freelance web developers charge $75–$250/hour depending on stack and experience. Simple websites cost $3,000–$10,000, custom web apps $10,000–$100,000+. WordPress sites start lower.
Should developers invoice for maintenance and hosting?
Yes. Offer monthly maintenance retainers ($100–$500/month) for updates, backups, and security patches. Hosting costs should be billed separately or passed through at cost.
Related invoice templates
Read the complete invoicing guide to see how to fill out, number, and send an invoice that gets paid.
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