MultiChannel Profit Calculator — UK Seller Fees

Stop guessing your margins. MultiChannel Profit Calculator shows your real net profit after all platform fees, shipping costs, and VAT — directly on the listing page. How it works: • Browse a product listing on any supported selling channel • The extension reads the item price and automatically calculates fees • See your net profit and margin percentage in an on-page overlay Key features: • Real-time profit calculations while you browse listings • Accounts for platform commission, payment processing fees, and VAT • Customisable cost of goods and shipping rates • Compare profitability across channels from the popup • Works on 11 major UK selling channels • All data stored locally — nothing leaves your browser Built for UK e-commerce sellers by WMS 360.