OnBuy Marketplace Fees
Complete fee breakdown with interactive calculator — updated March 2026
Fee Overview
OnBuy is a UK-based marketplace positioning itself as a seller-friendly alternative to Amazon and eBay. Its headline feature is some of the lowest commission rates in e-commerce: just 5–9% depending on category, significantly undercutting both Amazon (7–15%) and eBay (10–13%). Monthly subscription plans start from £19/month.
The fee structure includes a monthly subscription (Standard at £19/mo, Premium at £39/mo, or Unlimited at £79/mo), category-based commissions (5–9%), and payment processing of approximately 2% handled through OnBuy's integrated payment system. Even with all three cost components, total selling costs on OnBuy are typically lower than Amazon or eBay.
OnBuy has been growing rapidly in the UK market, with millions of monthly visitors. The platform focuses on product listings rather than seller branding, similar to Amazon's catalog-style approach. For UK sellers looking to maximize margins, OnBuy offers the most competitive fee structure available.
Fee Structure at a Glance
Fee Calculator
Enter your sale price and category to see your exact fees and net revenue on OnBuy.
Fee Optimization Tips
Electronics sellers benefit most from OnBuy's 5% commission — compare this to Amazon's 7–8% and eBay's 10–12% for the same category
Start with the Standard plan (£19/mo) and upgrade as your volume grows — the per-listing limits are generous for new sellers
Factor in the ~2% payment processing fee: total cost per sale is commission + 2%, still well below most competitors
OnBuy's lower fees mean you can price more competitively than on Amazon or eBay while maintaining the same margins
Use OnBuy alongside eBay for UK market coverage — the complementary customer bases and low OnBuy fees make dual-platform selling profitable
Frequently Asked Questions
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