Calculator

What you keep on each platform

Enter your price and volume. We show what you keep on publica.now, Substack, Patreon, KDP, Gumroad, and Medium — with 2026 fees.

Quick examples to start

1 · What are you selling?

Pick how you charge. If it's a single payment per unit (a book, an album, a course), it's a one-time purchase. If you charge your audience every month, it's a subscription.

One-time purchase Books, albums, ebooks, courses, photos Monthly subscription Newsletter, membership, podcast, Patreon-style

2 · Your price and volume

Change the numbers and the table updates instantly. All figures in USD.

USD

Monthly gross revenue: /month

Summary

Platforms that support this model

What you keep (more is better)

Platforms that don't support this model

These platforms don't allow the model you picked. KDP doesn't do recurring subscriptions; Substack doesn't sell one-time products.

Calculations in USD based on each platform's public fees as of May 2026. They can change; processors and banks may add fees by country. Publica Now: 15% + USD 0.50 includes processing.

Next step

Start selling on Publica Now

Creating an account is free. You only pay when you sell. No contract, no exclusivity.

Save your results

Get the detailed breakdown by email

Drop your email and we'll send you a PDF with the table, formulas, and assumptions. No spam.