What newsletters
actually earn

Finance newsletters command the highest CPMs ($45–$85) because advertisers know readers have disposable income. A tight niche — UK ISA investing, dividend income, crypto tax — outperforms broad 'money tips' 3× on open rates.

AI newsletters are the fastest-growing category in 2026. The key differentiator is usefulness-per-issue — readers churn quickly on hype but stay for tactical, tested workflows. CPMs range $30–$60 depending on audience seniority.

Health newsletters have the highest paid conversion rates (8–12%) because readers assign high personal value to the information. Substack's discovery engine and its existing paid-reader culture make it the natural home for this niche.

Local newsletters are the hidden gem of 2026. CPMs from local restaurants, salons, and real estate agents can reach $120+ because the audience is hyper-targeted. You don't need 25k subs — 5k engaged locals can generate more revenue than 50k passive national readers.

B2B SaaS newsletters command the highest raw sponsorship rates — $5k+ per issue at 25k subs is realistic because one ad placement can generate six-figure pipeline for a sponsor. Requires deep niche authority, not breadth.

Career newsletters monetise exceptionally well from the demand side — recruiters and employers pay premium rates ($800–$2,500/issue) to reach a pre-qualified, professionally active audience. Job board revenue compounds as reputation grows.

Real estate newsletters punch above their weight on affiliate revenue — mortgage brokers, estate agents, and PropTech companies pay high commissions ($80–$200 per qualified lead). A paid 'deal flow' tier converts 4–6% at 15k+ subscribers.

Food newsletters have a passionate, loyal readership that converts well on paid tiers. The real play is events — supper clubs, tastings, and trade events turn a digital audience into a high-ticket in-person revenue stream at 5k+ subscribers.

EdTech newsletters are underserved but have a captive, professional audience. Schools and districts have procurement budgets — an EdTech company will pay $1,500+ per issue to reach 10k decision-makers. Digital products (templates, curricula) convert well at this audience's income level.

Sustainability newsletters attract corporate and institutional sponsors — ESG funds, clean energy companies, and government bodies — willing to pay significant premiums for access to a credentialed, influence-rich audience. Whitepapers and research reports are a unique revenue stream in this niche.

Music newsletters monetise primarily through passion-driven paid subscriptions — readers in this niche pay to feel like industry insiders. Sponsorship CPMs are lower than B2B niches, but the community revenue (events, consulting, direct support) can compensate significantly at scale.

Travel newsletters generate strong affiliate revenue early — booking platforms, travel insurance, and luggage brands all pay commissions. The ceiling is lower than B2B niches, but travel content naturally goes viral, giving an organic growth advantage most niches don't have.