How to Start and Grow a Substack Newsletter — Ship30for30
A 5-step framework for launching a newsletter on Substack, with the central thesis: don’t start a newsletter until you have an audience.
The Golden Rule
Start writing on Substack when you already have an audience from social platforms. The hardest part of newsletters is finding readers, and that work happens on social (X/Twitter, LinkedIn) before you ever set up a newsletter. This inverts the common advice of “just start a newsletter.”
The 5-Step Framework
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Set up your account, hold off on the paywall. Don’t charge until you’ve proven demand. Use the free tier to grow subscribers first. Premature paywalling kills growth before it starts.
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Repurpose proven content from your library. Come to Substack with validation from other platforms. Check analytics for high-engagement posts, select 2-3 seed topics, and expand them with lessons, mistakes, tips, stories, examples, and case studies. This eliminates the “what should I write about?” problem.
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Send your first newsletter to yourself. Two reasons: (a) writing looks different across platforms — check formatting, subject line impact, image display, word wrapping; (b) forward the email to friends/family as a personal invite for early traction and feedback.
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Launch on X/Twitter. Connect accounts so Substack can notify your X/Twitter followers. Use social as the growth engine — the newsletter doesn’t market itself.
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Network with writers and readers. Use Substack’s Discover function to find collaborators, not just readers. Cross-promote, co-write issues, turn on recommendations. Three tactics: enable recommendations, involve readers (quotes/comments in posts), and cold-outreach writers you admire.
Why Substack Specifically
- Free to use, 90% revenue share on paid tier
- Designed around ascending free subscribers to paid
- Portable audience (CSV export)
- Growing distribution tools (community recommendations)
- Simpler than full email marketing platforms (Kit, etc.) — 90% of features go unused by beginners
RDCO Mapping
The “prove it on social first, then newsletter” sequence validates Sanity Check’s approach of using LinkedIn as the top-of-funnel. The “repurpose proven content” step is directly applicable — the best newsletter issues can start as validated social posts. The “send to yourself first” step is a useful QA habit worth adopting for every Sanity Check issue.