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Substack Newsletter Revenue Calculator

Estimate monthly‑equivalent gross, refunds, fees, and net take‑home across monthly, annual, and founding members. Edit fee assumptions to match your setup.

Paid base

Derive paid from audience

Audience size

Paid conversion (%)

Paid subscribers (total)

Annual share (%)

Pricing & founding

Monthly price

Annual price

Founding members (count)

Founding price

Fees

Refund rate (%)

Substack platform fee (%)

Processor variable (%)

Processor fixed per charge

Recurring billing fee (%)

Gross (monthly‑equiv)

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Refund loss

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Total fees excl refunds

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Net take‑home (monthly‑equiv)

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Effective fee rate

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Mix — monthly / annual / founding

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Monthly‑equivalent view: annual/founding gross and fees are divided by 12; recurring‑billing fee applies only to subscriptions (monthly+annual).