Substack Revenue Calculator
Calculate Substack earnings from paid subscribers, free subscribers, and pricing tiers. Enter values for instant results with step-by-step formulas.
Formula
Net Revenue = Gross Revenue - (10% Substack Fee) - (2.9% + $0.30 Stripe Fee)
Where Gross Revenue = (Monthly Plan Subs x Monthly Price) + (Annual Plan Subs x Annual Price / 12) + (Founder Subs x Monthly Price x Founder Multiplier). Substack takes a flat 10% of all paid subscription revenue, and Stripe processes payments at approximately 2.9% plus $0.30 per transaction.
Worked Examples
Example 1: Mid-Size Substack Creator
Problem: You have 15,000 free subscribers with 6% paid conversion, $10/month pricing, $100/year, 65% on annual plans, 3.5% monthly churn, and 1.5% founding members at 2x price.
Solution: Paid subscribers: 15,000 x 6% = 900\nMonthly plan: 900 x 35% = 315 subs x $10 = $3,150\nAnnual plan: 900 x 65% = 585 subs x $8.33/mo = $4,873\nFounders: 15,000 x 1.5% = 225 subs x $20/mo = $4,500\nGross monthly: $3,150 + $4,873 + $4,500 = $12,523\nSubstack 10%: -$1,252 | Stripe ~3%: -$698\nNet monthly: $10,573\nChurn loss: 900 x 3.5% x $10 = $315/mo
Result: Net Monthly: $10,573 | Net Annual: $126,876 | After Churn: $10,258/mo
Example 2: New Substack Writer
Problem: You have 3,000 free subscribers with 4% paid conversion, $7/month pricing, $70/year, 50% annual plans, 5% monthly churn, and 1% founding members at 2x.
Solution: Paid subscribers: 3,000 x 4% = 120\nMonthly plan: 120 x 50% = 60 subs x $7 = $420\nAnnual plan: 120 x 50% = 60 subs x $5.83/mo = $350\nFounders: 3,000 x 1% = 30 subs x $14/mo = $420\nGross monthly: $420 + $350 + $420 = $1,190\nSubstack 10%: -$119 | Stripe ~3%: -$80\nNet monthly: $991\nChurn loss: 120 x 5% x $7 = $42/mo
Result: Net Monthly: $991 | Net Annual: $11,892 | After Churn: $949/mo
Frequently Asked Questions
How much does Substack take from creator earnings?
Substack takes a 10% platform fee from all paid subscription revenue, which is their primary business model. On top of this, Stripe payment processing adds approximately 2.9% plus $0.30 per transaction. This means the total fee on each subscription payment is roughly 13% to 14% of the gross amount. For a $10 monthly subscription, Substack takes $1.00, Stripe takes approximately $0.59, and you receive $8.41. For annual subscriptions processed as a single payment, the fixed $0.30 Stripe fee has less impact, making annual plans slightly more cost-effective for creators. Some creators have criticized the 10% fee as high compared to alternatives like Ghost, which charges zero platform fees, but Substack argues the fee pays for their distribution network and discovery features.
What is a good paid conversion rate on Substack?
Substack reports that the average paid conversion rate across their platform is approximately 5% to 10% of free subscribers, but this varies widely by niche, content quality, and pricing strategy. Top-performing newsletters in finance, business, and technology often achieve 8% to 15% conversion rates. New writers typically start at 2% to 4% and improve as they build trust and authority with their audience. Several factors influence conversion rates: the perceived exclusivity of paid content, the writer established reputation, the pricing relative to the value delivered, and how effectively the paywall is positioned. Writers who offer a clear and compelling value proposition for paid content, such as actionable investment advice or exclusive industry analysis, consistently outperform those with vague premium offerings.
Should I offer monthly or annual Substack subscriptions?
Offering both monthly and annual subscription options is the recommended strategy, with pricing that incentivizes annual commitments. The standard approach is to price the annual plan at a 15% to 20% discount compared to 12 months of the monthly rate, such as $10 per month or $100 per year. Annual subscribers are significantly more valuable because they have 6 to 8 times lower churn rates compared to monthly subscribers, and the upfront payment provides better cash flow predictability. Substack data shows that newsletters with 50% to 70% of paid subscribers on annual plans have more stable and predictable revenue. The annual discount encourages longer commitments and reduces the monthly decision point that leads to cancellations. Some creators also offer a founding member tier at 2 to 3 times the annual price, which surprisingly attracts 1% to 5% of subscribers.
How does the Substack Founder subscription program work?
The Founding Member or Founder subscription is a premium tier that allows readers to pay more than the standard rate as a way to support the creator. Typically priced at 2 to 3 times the regular subscription, such as $200 per year versus $100 for standard annual, it appeals to superfans and supporters who want to contribute extra. Founders usually represent 1% to 5% of total free subscribers and can contribute significantly to total revenue. Some writers offer exclusive benefits for founding members, such as personal access, community membership, or bonus content, though Substack does not require differentiated benefits. The psychological anchoring effect of the founding tier also makes the standard subscription price seem more reasonable by comparison, potentially increasing overall conversion rates.
What are the most profitable niches on Substack?
The most profitable Substack niches combine high audience willingness to pay with strong content differentiation and limited free alternatives. Finance and investing newsletters lead in revenue, with several writers earning over $1 million annually, because readers attribute direct monetary value to investment insights. Technology and startup coverage performs well because industry professionals use newsletters to stay informed and make business decisions. Political analysis and commentary attracts passionate audiences willing to support writers they trust. Culture and media criticism has a dedicated audience of paying readers who value thoughtful long-form analysis. Local news is an emerging profitable niche as traditional media outlets decline. The common thread among profitable niches is that creators offer unique expertise or perspectives that readers cannot easily find elsewhere for free.
How do I reduce churn on my Substack newsletter?
Subscriber churn, the monthly percentage of paid subscribers who cancel, is the silent revenue killer for Substack creators. Average monthly churn rates range from 3% to 8%, meaning you lose 30% to 60% of subscribers annually. To reduce churn, maintain a consistent publishing schedule, as irregular posting is the number one reason subscribers cancel. Deliver clearly differentiated value in paid content versus free posts so subscribers feel the premium is justified. Send a welcome sequence to new paid subscribers highlighting the value they will receive and how to get the most from their subscription. Engage directly with paid subscribers through comments, AMA sessions, or community channels to build personal connection. Track which content generates the most engagement and produce more of it. Consider offering subscriber-only perks like Discord access, office hours, or bonus content to increase switching costs.