How a San Francisco writer built a $263,000 Substack side hustle

The business model centers on "Make Writing Your Job," a platform that evolved from Suto’s personal need to refer clients she could no longer serve. While she maintains a primary career as a ghostwriter for memoirs, the newsletter has become a top-20 business publication on the platform. With 58,000 subscribers, the duo generates income through a tiered membership structure, charging $19 monthly or $550 for founding members. After platform fees and transaction costs, they retain approximately 85% of subscription revenue.

Growth has been driven by a "free-first" strategy, providing resources, interviews with authors, and networking opportunities that entice casual readers to become paying members. Suto emphasizes that the project succeeded because she treated it as a consistent, weekly commitment rather than a quick-growth scheme. By leveraging Substack’s internal discovery tools and avoiding paid advertising, she has proven that a niche, personality-driven publication can scale to six figures by solving a specific professional pain point for its audience.