Invoice Template for Substack Writers

Substack writers bill across creation, strategy, and partnership categories. Newsletter Issue Writing covers researching, writing, and formatting a complete Substack issue — typically 800–2,000 words — including a compelling subject line and preview text optimised for open rates. Sponsored Post Integration refers to weaving a brand sponsor's message naturally into a newsletter issue, including writing the sponsor's copy in the newsletter's voice without breaking reader trust. Newsletter Strategy Consulting covers auditing an existing Substack — open rate benchmarks, subject line analysis, monetisation gaps — and delivering a written growth playbook. Ghostwriting for Operator covers writing in the voice of a publication's founder or editor for newsletters they don't have time to write themselves. Archive Migration covers moving existing blog content to Substack's format and setting up paid tier structure with appropriate paywall placement.

Substack writers price per issue or monthly. Per-issue ghostwriting: $150–$800 depending on research depth. Sponsored post integration: $200–$1,500 per placement. Monthly ghostwriting retainers (4 issues): $600–$2,500. Strategy audit: $300–$1,000 as a fixed project. Pricing scales significantly with the client publication's subscriber count — writing for a 50,000-subscriber publication commands a premium over a 500-subscriber one.