Question 1

What should a web design invoice include?

Accepted Answer

A web design invoice should include: your agency/freelancer name and contact info, client company name and billing address, a unique invoice number, project name and description, a detailed breakdown of deliverables (wireframes, mockups, development, CMS setup, SEO), milestone billing percentages, hosting and domain fees, maintenance retainer fees, revision rounds, and payment terms. For fixed-price projects, list the deposit paid and remaining balance due.

Question 2

How do web designers use milestone billing?

Accepted Answer

Milestone billing breaks the project into phases with payments tied to deliverables. A typical web design project might use: 30% deposit at contract signing, 30% upon wireframe/mockup approval, 30% upon development completion, and 10% upon launch and training. Each milestone invoice should reference the project phase, show the deposit-to-date, and list the remaining project balance. This protects both the designer and client by ensuring payment as work progresses.

Question 3

How do I bill for ongoing website maintenance?

Accepted Answer

Website maintenance is typically billed as a monthly retainer or a fixed package. Common maintenance services include: WordPress/CMS updates, security patches, backups, content updates, performance monitoring, and analytics reporting. Create a recurring invoice template with your monthly maintenance fee, list any additional hours beyond the retainer separately, and note your response time SLA. Maintenance invoices should be sent on the same day each month for predictable cash flow.

Free Web Design Invoice Template

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Invoice Details

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