Terms of Use

Acceptance of terms: by using SellerMargin Tools, you agree to these Terms of Use. If you do not agree with these terms, please do not use the website.

Purpose of the service: SellerMargin Tools provides ecommerce calculators, guides, comparison pages, and related resources for educational and estimation purposes. The tools are designed to help sellers think through profit, fees, landed cost, pricing, shipping, and marketplace economics before making business decisions.

No professional advice: the calculators and guides do not provide financial, tax, legal, accounting, customs, investment, or marketplace compliance advice. You are responsible for consulting qualified professionals when your decision requires professional judgment.

Accuracy and assumptions: calculator results depend on the inputs, default assumptions, fee rates, formulas, and examples shown on the site. Marketplace fees, payment processing fees, fulfillment costs, ad costs, duties, taxes, and policies may change over time and may vary by country, category, seller account, program, campaign, product size, and other conditions. You must verify final numbers with official marketplace documents, seller dashboards, tax authorities, logistics providers, or professional advisors.

Your responsibility: you are solely responsible for pricing, sourcing, inventory, advertising, tax, customs, shipping, compliance, and business decisions made using information from this website. Do not rely on a single calculator result as the only basis for buying inventory, changing prices, launching ads, or entering a marketplace.

No marketplace affiliation: SellerMargin Tools is an independent project. It is not affiliated with, endorsed by, or sponsored by Amazon, Etsy, Shopify, TikTok, or any other marketplace, platform, carrier, payment processor, or government authority. Marketplace names and trademarks belong to their respective owners and are used only to describe compatible seller calculations.

Permitted use: you may use the website for personal, educational, and business planning purposes. You may not abuse the service, attempt to disrupt the website, scrape or copy the site at scale, reverse engineer protected parts of the service, submit malicious content, or use the site in a way that violates applicable laws or third-party rights.

Availability and changes: we may update, change, suspend, or discontinue any calculator, guide, feature, formula, default value, or page at any time. We do not guarantee that the website will always be available, error-free, or up to date.

Limitation of liability: to the maximum extent permitted by law, SellerMargin Tools and its operator are not liable for lost profits, lost revenue, inventory losses, advertising losses, tax or customs issues, marketplace penalties, indirect damages, or business decisions made based on the website.

Contact: if you have questions about these terms, email us at jiangchongyang01@gmail.com.