Substack Statistics (2026) — Paid Subscriptions, Valuation, Milestones

Substack is a publishing platform that lets writers and creators distribute newsletters (and other content formats) directly to subscribers, with an option to charge for paid subscriptions. Substack provides the hosting, email delivery, analytics, and payment infrastructure that creators can use to run a subscription business.

On this page:

• What is Substack?
• How Substack works
• Substack statistics and milestones
• Moderation and controversy (overview)
• Methodology
• FAQ
• Sources & references

What is Substack?

Substack is a platform for publishing subscription-based newsletters and related content. Creators publish posts, send emails to subscribers, and can offer paid tiers that unlock additional posts or perks. The platform is commonly used by independent writers, journalists, and subject-matter experts who want a direct relationship with readers. (Reference overview)

How Substack works

• Creators publish: Posts can be sent to free subscribers by email and also live on a public web page.
• Paid subscriptions: Creators can charge for access to paid posts (and/or subscriber benefits), while still offering free content.
• Payments and analytics: Substack handles payment processing and provides creator dashboards for subscriber growth and revenue tracking.

Substack statistics and milestones

Paid subscriptions (reported):

Substack said it had more than 3 million paid subscriptions as of February 2024. (Axios)

Paid subscriptions (reported):

The Financial Times reported Substack reached 5 million paid subscriptions by March 2025. (Financial Times)

Funding and valuation (reported):

Reuters reported that Substack raised $100 million at a $1.1 billion valuation in July 2025. (Reuters)

High-profile author adoption (example):

The Wall Street Journal reported that bestselling author James Patterson launched a Substack in October 2024. (The Wall Street Journal)

Moderation and controversy (overview)

Substack has drawn attention for its approach to content moderation and the types of publications hosted on the platform. Coverage has discussed tensions between open publishing, creator independence, and concerns about harmful or misleading content. (Vanity Fair)

Methodology

• Source priority: Key numbers are taken from primary reporting or reputable outlets (Axios, Financial Times, Reuters, WSJ).
• No speculation: This page excludes forecasts and forward-looking estimates; it uses only reported figures tied to a specific date.
• Terminology note: Sources may use “paid subscriptions” rather than “paid subscribers.” This page preserves the source’s wording.

FAQ

When was Substack founded?

Substack was founded in 2017. (Reference overview)

How many paid subscriptions does Substack have?

Substack said it had more than 3 million paid subscriptions in February 2024, and the Financial Times later reported it reached 5 million paid subscriptions by March 2025. (Axios) (Financial Times)

How does Substack make money?

Substack’s business model centers on enabling paid subscriptions for creators and taking a platform fee and payment processing fees (exact fee structures can change, so verify on Substack’s pricing documentation when updating this page). (See: Substack Help)

Sources & references

• Axios — Substack says it has more than 3 million paid subscriptions (Feb 2024)
• Financial Times — Reported 5 million paid subscriptions by March 2025
• Reuters — $100M round at $1.1B valuation (July 2025)
• The Wall Street Journal — James Patterson launch on Substack (Oct 2024)
• Vanity Fair — Moderation and platform debate background
• Reference overview — Background context (founding year)