About MarginPilot

MarginPilot is a free collection of ecommerce profit, fee, margin, shipping, tax reserve, and advertising cost calculators for marketplace sellers. The site is designed to help sellers compare product economics before listing, scaling ads, or expanding into another marketplace or country.

What the calculators do

Each calculator combines sale price, product cost, shipping, marketplace fees, advertising cost, tax reserve, and return reserve into a quick planning estimate. The goal is to make hidden margin pressure easier to see before sellers commit more time or inventory.

Important limitations

Marketplace fees, taxes, fulfillment prices, software pricing, and payment rules change over time and can vary by product category, account type, country, and seller setup. MarginPilot is for education and planning only. Always verify current rules with the relevant marketplace, software provider, and qualified professional advisors.

How the site is funded

MarginPilot may use affiliate or partner links to relevant ecommerce tools. Those links do not change calculator results and should not be treated as personalized financial, tax, legal, or business advice.