About

About CrossMargin

CrossMargin is a free tool site for cross-border ecommerce sellers. It helps Amazon, Shopify, TikTok Shop, independent-store, and multi-channel sellers estimate profit, landed cost, ad tolerance, listing drafts, and keyword structure before making bigger operating decisions.

What CrossMargin helps with

Most ecommerce decisions depend on a few basic numbers: the real landed cost per unit, whether the selling price can support advertising and returns, where break-even ACOS sits, and whether shipping or discounts are quietly removing margin. CrossMargin turns those questions into lightweight tools and practical guides.

Who it is for

The site is built for operators, founders, and small teams working on sourcing, product pricing, Amazon listings, advertising keywords, Shopify margin, and TikTok Shop pricing. The tools run in the browser and do not require a marketplace account connection.

Editorial stance

CrossMargin focuses on formulas, cost items, operating judgment, and common mistakes. It does not promise revenue outcomes and does not provide tax, legal, logistics, finance, or marketplace policy advice.