This free Web Developer Invoice template is a ready-to-use document you can fill in, export and send today. Detailed billing layout for web developers, programmers, and software development agencies. Use it to bill a client clearly enough that finance can pay it without asking you a single question. Every field is editable, the preview updates as you type, and the finished file downloads as PDF or Word with no watermark and no sign-up.
Milestone versus hourly billing for web development
Fixed-scope builds fit milestone billing, where each invoice maps to a deliverable such as "design sign-off," "staging deployment," or "production launch," each worth a set percentage of the contract. Open-ended or maintenance work fits hourly billing, where you log time against tickets. Many developers combine the two: milestones for the build, hourly for change requests once scope is fixed.
Add a repository-handover clause so ownership is unambiguous. Wording such as "Full source code and repository access transfer to the client upon final payment" prevents disputes over who controls the code, and it protects you by tying delivery to being paid rather than to a promise.
Break out support and maintenance as their own line items rather than bundling them into the build. Distinguish warranty bug fixes (defects in what you shipped, often free for a set window) from ongoing maintenance (updates, monitoring, small enhancements) billed at an hourly or monthly retainer rate. A sample line reads: "Monthly maintenance retainer: up to 4h/month @ $120/h, unused hours do not roll over." Clear support terms turn a one-off project into recurring revenue.
Who this Web Developer Invoice template is for
- Freelancers and consultants billing clients directly
- Small businesses that invoice a handful of customers each month
- Anyone who needs a compliant record for their accountant
What's included in this Web Developer Invoice template
- Company name
- Client name
- Invoice number
- Due date
- Development phase
- Feature delivered
- Repository link
- Hourly rate
- Subtotal
- Total
- Amount due
- Maintenance plan
How to use this Web Developer Invoice template
- 1Replace the sender block with your own name, address and tax number.
- 2Add the client's legal name and billing address exactly as they gave it.
- 3Set a sequential invoice number and an explicit due date, not just "Net 30".
- 4Enter each line item with a description, quantity and rate — the totals compute themselves.
- 5Export to PDF and attach it to a short email naming the invoice number.
Web Developer Invoice: mistakes to avoid
- Never reuse an invoice number. Cancel and issue a credit note instead.
- Write the due date as a real date. "Net 30" invites an argument about day one.
- Include the purchase order number if your client uses one — some finance systems will not pay without it.
- Send PDF, not Word, so the layout cannot shift on the client's machine.
Frequently asked questions
Is this Web Developer Invoice template really free?
Yes. You can fill it in, export it to PDF or Word, and send it to a client without creating an account, and the exported file carries no watermark or branding of ours.
What must a Web Developer Invoice include to be valid?
A unique sequential number, the issue date, an explicit due date, both parties' names and addresses, an itemised breakdown of what you delivered, the subtotal, any tax shown separately, the total due, and how to pay you. Most tax authorities also require your registration number where you have one.
Can I edit the line items and tax rate?
Yes. Add or remove rows, change descriptions and rates, and set your own tax percentage. The subtotal, tax and total recalculate from the rows, so the arithmetic on the page always adds up.
PDF or Word — which should I send?
Send the PDF. It renders identically everywhere and cannot be altered by accident. Keep the Word file for the occasional client whose finance system asks for an editable copy.