ProfitScope – Fee & Profit Calculator

Estimate fees, profit, and margins with a fast, simple marketplace calculator.

Know your true profit before you list or sell. This extension is a fast, easy-to-use calculator designed to help sellers estimate fees, costs, and profit margins in seconds. Whether you’re pricing a single item or testing different scenarios, you’ll get a clear breakdown of where your money is going. ✨ Key Features Accurate fee estimates Calculate marketplace-style final value fees based on your inputs Built-in transaction fee logic Automatically applies flat fees ($0.30 / $0.40) based on order value Full cost breakdown Include item cost, shipping cost, packaging, and more Flexible inputs Add buyer-paid shipping and sales tax Promoted listing support Factor in ad/promoted rates to see true margins Toggle controls for precision Switch between percentage (%) and flat dollar ($) inputs Instant profit calculation See net profit and margins update in real time 📊 What You Can Do Price items confidently before listing Avoid hidden fees cutting into your margins Compare multiple pricing strategies instantly Optimize for higher profit and better ROI 🎯 Who It’s For Online sellers and resellers Side hustlers and small business owners Anyone looking to better understand selling fees and profit ⚠️ Important Disclaimer This tool provides estimated calculations only. Actual fees may vary depending on platform rules, category, account status, and other factors. 🔒 Privacy & Data No personal data is collected No tracking or analytics All calculations happen locally in your browser 🛑 Independence Notice This extension is an independent tool and is not affiliated with or endorsed by eBay or any marketplace platform. 💡 Why Use This Extension? Selling fees can be confusing—and small differences can significantly impact your profit. This tool simplifies the math so you can focus on making smarter pricing decisions with confidence.