Last updated: September 2026
Welcome to Margen. By using this website and the Margen calculator, you agree to these Terms of Use.
Margen is a business calculation tool designed to help users estimate product costs, fees, margins, profits, advertising impact, and related business figures.
Results provided by Margen are estimates only and are not financial, accounting, tax, legal, or other professional advice.
You are responsible for entering accurate information into Margen. Results depend on the information you provide and on assumptions used within the calculator.
Marketplace fees, shipping costs, advertising expenses, taxes, policies, and other business costs may change over time. You should verify current rates and information before making important business decisions.
Margen does not guarantee that any product, listing, pricing strategy, advertising campaign, or business decision will be profitable.
You are responsible for your own business and financial decisions.
Margen does not automatically save your product lists, calculations, or other work after you close the application.
You are responsible for downloading or otherwise saving any information you wish to keep. Margen is not responsible for information lost because a browser window was closed, refreshed, cleared, interrupted, or because a file was not saved.
To the fullest extent permitted by law, Margen and its owners will not be responsible for losses, damages, lost profits, lost data, business decisions, or other consequences arising from use of the website or calculator.
We may update, modify, suspend, or discontinue any part of Margen at any time without notice.
The Margen name, website design, calculator, written content, branding, and related materials may not be copied, reproduced, redistributed, or commercially reused without permission.
You agree not to misuse the website, interfere with its operation, attempt unauthorized access, reverse engineer protected functionality, or use Margen for unlawful purposes.
These Terms may be updated from time to time. Changes will be posted on this page. Continued use of Margen after changes are posted means you accept the updated Terms.
Questions about these Terms may be sent to: hello@usemargen.com