Which UK marketplace has the lowest fees?

OnBuy has the lowest fees among major UK marketplaces at 5–9% commission with no monthly subscription. eBay UK charges 6–12% and is more established. Amazon.co.uk charges 7–15% plus FBA fees and a £25/month subscription. Use our fee calculator for exact comparisons.

What are the post-Brexit requirements for selling in the UK?

Post-Brexit, sellers need: UK VAT registration (mandatory for non-UK sellers shipping to UK), UKCA marking (replacing CE for many products), UK-responsible person for product safety, and customs declarations for shipments from the EU. The UK also has its own EPR requirements for packaging.

Is OnBuy a good alternative to Amazon UK?

Yes — OnBuy is growing rapidly and never competes with its own sellers (unlike Amazon). Fees are significantly lower (5–9% vs 7–15%), and seller policies are more transparent. Traffic is lower than Amazon but conversion rates are competitive. Many sellers use OnBuy alongside Amazon for diversification.

Can EU sellers easily sell in the UK post-Brexit?

Yes, but with additional requirements. EU sellers need UK VAT registration, must handle customs declarations, and may need UKCA marking for certain products. Tools like Marqetir handle the listing side, and many logistics providers offer UK fulfillment from EU warehouses.

Top Marketplaces in the United Kingdom

Europe's largest e-commerce market by consumer spend — £120B+ annually

The United Kingdom is Europe's largest e-commerce market by consumer spend, exceeding £120 billion annually. Amazon.co.uk dominates with over 30% market share, but eBay and a growing roster of challengers provide important diversification opportunities.

Post-Brexit, the UK operates under its own regulatory framework — UKCA marking (replacing CE), UK VAT registration, and UK-specific product compliance. English-language listings are standard, removing one barrier for international sellers.

This ranking covers the most important marketplaces for sellers targeting the UK, with real fee data and insights on post-Brexit selling requirements.