Invoice Template for Technical Writers
Technical writing for software companies places me in a unique billing position: I'm paid like a writer but need to think like a developer, and the two rarely agree on rates. My biggest challenge is billing for the research phase — reading code, sitting with engineers, and understanding the system before writing a single word — which clients see as overhead. The second challenge is scoping documentation for APIs that change mid-project.
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What to include on your invoice
Technical writers bill across documentation, API, and tooling categories. API Documentation covers writing complete API reference documentation — endpoints, parameters, request and response examples, error codes — in a format compatible with tools like Stoplight, ReadMe, or a Docusaurus site. Developer Getting Started Guide covers writing an opinionated quickstart guide that takes a developer from installation to their first successful API call in under 10 minutes. SDK and Library Documentation refers to documenting code libraries in the appropriate docstring format and generating a browsable reference site. Architecture Decision Records covers writing ADRs that document why specific technical choices were made — valuable internal documentation that prevents repeated debates. Technical Blog Post covers writing an engineering-focused article about a product's technology, designed to rank for developer-focused search terms and drive inbound technical interest.
How to price your work
Technical writers price by page, project, or hourly. Hourly rates: $75–$200/hr — among the highest writing rates because the work requires engineering knowledge. API documentation for a medium-sized API: $2,000–$8,000. Developer guides: $500–$2,500. Full documentation site setup and content: $3,000–$15,000. Technical blog posts: $300–$1,000 each. Embedded technical writing retainers (20 hours/month): $2,000–$5,000. The most valuable technical writers price like engineers, not like writers.
Getting paid faster
Technical writing clients at developer tool companies often have a developer advocate or engineering manager as your budget owner — not a traditional marketing buyer. These clients respect precision and hate vagueness. Invoice with a GitHub PR link or a URL to the documentation page you wrote. 'Here is the documentation: [link]' is the most effective invoice summary a technical writer can send. Engineers approve things they can see and use.
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