Sell on B&Q Marketplace, managed from invtri.

B&Q’s marketplace on diy.com

B&Q is part of Kingfisher plc, whose seller site calls it “The UK’s largest home improvement and garden living retailer”³. B&Q launched the marketplace in 2022¹. ChannelX lists marketplace management “with Mirakl”, which integrates with third-party aggregators and APIs, among the benefits for sellers⁴.

ChannelX reported in February 2026 that the marketplace had “over 1.2 million products from more than 1100 verified sellers”¹. It put diy.com at “over 320m online visits per year”¹.

Kingfisher puts the marketplace’s retail profit contribution for the six months to 31 July 2026 at £12m². In the six months to 31 July 2025, marketplace sales made up 46.8% of B&Q’s e-commerce sales⁷. About half of marketplace customers were new to diy.com⁷.

Kingfisher’s stated ambition is for e-commerce to reach 30% of its sales, with marketplace generating a third of e-commerce sales². The range is moving beyond DIY too: ChannelX reported in June 2026 that B&Q is pushing to be “the marketplace for everything in the home”⁶.

Who can sell, including EU-based sellers

Applications go through Kingfisher’s Merchant Hub³, and the sellers on diy.com are “verified sellers”, as ChannelX puts it¹.

B&Q also takes sellers based in six EU countries⁴. In November 2025, ChannelX reported that “German sellers can now join those from Ireland, Italy, Poland, The Netherlands and Spain to sell on B&Q in the UK”⁴. Kingfisher counted 69 cross-border merchants on the marketplace at 31 July 2025⁷, and more than 80 cross-border vendors in its September 2026 results².

If you are based outside the UK. The Merchant Hub does not set out terms for EU-based sellers³, so raise VAT, shipping and returns with B&Q when you apply. UK rules for businesses based abroad, such as B&Q’s EU-based sellers, include the following; check with your adviser how they apply to you.

• UK VAT registration: required, whatever your turnover, for a business based outside the UK that supplies goods to the UK⁸.
• Low-value imports: on consumer sales of consignments of £135 or less sent to Great Britain, the marketplace is liable for the VAT⁹.
• Goods already in Great Britain: the marketplace is liable for the VAT on consumer sales of any value⁹.
• Deemed supply: for goods already in Great Britain, your sale counts as a zero-rated supply to the marketplace, and sellers making only these supplies can register or apply for exemption⁹.
• Imports: for stock you hold in the UK, you remain liable for import VAT and customs duty when the goods are first imported⁹.
• Electricals: an overseas business selling electrical or electronic equipment directly to UK customers is a producer, needing a UK authorised representative or a UK-approved compliance scheme¹⁰.

Subscription and commission

Kingfisher’s Merchant Hub says you pay a “small subscription fee”, and commission only when a product sells³. Its FAQ adds that you “might pay a few different types of selling fees”, depending on the products you sell³.

The Merchant Hub gives no amounts³, so ask for the subscription and the commission rates for your categories before you sign up. ChannelX’s November 2025 list of seller benefits included “Zero listing fees and transparent commission”⁴.

Applying through Kingfisher’s Merchant Hub

B&Q’s corporate marketplace page links “Sell on diy.com” to the Merchant Hub¹¹. From there:

1. 1

   Send the application form

   Kingfisher calls it “our simple application form” and says the sign-up step takes “only 30 seconds”³.

2. 2

   Onboard with your representative

   A Business Development Representative guides you, and setup “typically takes less than five working days”³. ChannelX lists “1:1 onboarding support to get you live quickly” among the benefits⁴.

3. 3

   Grow with the Account Growth team

   Once you are live, the Account Growth team supports you³.

Listing checks and the Buy Box

Kingfisher said in September 2025 that it uses AI for “automating the manual checking of marketplace product listings”⁷.

B&Q now runs a Buy Box for third-party merchants¹². Kingfisher says it improves customer choice and drives competition between merchants².

Delivery, click & collect and returns

“You sell it, you ship it,” says the Merchant Hub: you keep your own stock and choose your own courier or service³. Delivery is currently free to the customer on all orders³.

In September 2025, Kingfisher said it was piloting a “UK-first marketplace click & collect service at B&Q”, targeting 300 stores by the end of October⁷. A year later, it credited store click & collect for part of B&Q’s marketplace growth². Check with B&Q during onboarding whether your products can be collected in store, and which return terms apply to marketplace orders.

Recent changes on the marketplace

• November 2025: Germany joins the EU countries whose sellers can sell on B&Q in the UK⁴.
• April 2026: a Tech & Home Office category opens⁵.
• May 2026: the Buy Box for third-party merchants launches¹².
• June 2026: enhanced seller profiles and dedicated seller pages¹³, then a Cameras and Wearable Tech category, as ChannelX reported marketplace GMV up 29%⁶.
• September 2026: half-year results report more than 80 cross-border vendors and credit store click & collect for part of the growth².