How to Block a Buyer on eBay in 2026: Steps, Limits and Settings

A buyer opens three cases in a month, ignores every tracking update you send, and then bids on your newest listing. You have done your part on each order, and now you want that account kept away from your store. Knowing how to block a buyer on eBay takes about two minutes, and below you will find the exact steps, the limits of the blocked buyers list, and the settings that filter unwanted accounts before they ever reach checkout.

Quick answer: To learn how to block a buyer on eBay, open the Block bidders or buyers page, type the buyer's username into the box (up to 5,000 names), and select Submit. The buyer can no longer bid on or buy your items until you remove them.

• How to block a buyer on eBay in four steps
• Blocked buyers list vs buyer requirements
• When blocking makes sense, and when a message works better
• Unblock, restore or review your list
• How to block a buyer on eBay less often
• Frequently asked questions

How to block a buyer on eBay in four steps

eBay keeps the blocked buyers list on its own page, separate from Seller Hub orders. You will need the buyer's exact eBay username, which you can copy from the order details or from the message thread. If you sell across several eBay accounts, each account keeps its own list, so repeat the steps on every account you want that buyer kept out of.

1. Find the username. Open the order in Seller Hub, or the buyer's message, and copy the username exactly as shown. Display names and email aliases will not work.
2. Open the block page. Go to the Block bidders or buyers from your listings page, linked from eBay's blocking a buyer help article. Sign in if eBay asks you to.
3. Add the name to the box. Paste the username into the text box. Separate several names with a comma. eBay allows up to 5,000 usernames on one list.
4. Select Submit. The change takes effect on your listings straight away. Reload the page and confirm the name is still in the box before you close it.

That is the whole process. If you want a wider tour of where these tools sit among your other store settings, our eBay Seller Hub guide maps the menus that sellers use every day.

One detail catches new sellers out. Blocking works going forward. It stops new bids and purchases, but an order the buyer placed before you added them is still a live order. Ship it, cancel it or refund it through the normal order flow, and keep your notes in eBay messages. Our walkthrough on how to message a buyer on eBay covers the wording that keeps a tense thread calm and on the record.

Dropshippers who run a high order volume usually want this step handled inside a wider routine, which is where Ecomli fits. Ecomli is a non-API browser extension for eBay dropshippers. It works through the eBay seller account already signed in to your desktop Chrome browser, so there is no API connection to authorize, and it helps you find products, list them from Amazon and AliExpress, keep them in line with supplier stock, and handle orders, tracking and buyer messages. We come back to how that cuts down the number of buyers you need to block further down.

Blocked buyers list vs buyer requirements

eBay gives sellers two separate controls. The blocked buyers list targets named accounts you have already dealt with. Buyer requirements filter accounts you have never met, based on rules. Most stores use both, and the table below shows which tool fits which job.

According to eBay's buyer requirements help page, these rules can apply to all active and future listings or to future listings only, and you can also stop blocked buyers from contacting you. For a dropshipping store, the shipping exclusion matters most. If an Amazon or AliExpress supplier does not deliver to a region, excluding it at the listing level is cleaner than canceling an order after the sale.

When blocking makes sense, and when a message works better

A block is a quiet, private tool. The buyer is not notified, and nothing appears on their profile. That makes it right for some situations and a poor fit for others. A simple test helps. Block when the pattern sits with the account, and message when the trouble sits with one order.

Situations where sellers in our experience reach for the blocked buyers list:

• The same account has left several unpaid orders on your listings.
• A buyer sends messages that are abusive or ask you to complete the sale off eBay.
• A buyer repeatedly orders and cancels, which ties up stock you could sell to someone else.
• A buyer keeps bidding from a location you have already said you do not ship to.

Situations where a message or a refund usually settles things faster:

• A first-time "where is my item" question. A clear reply with tracking ends most of these.
• A damaged or wrong item. Fix the order first, then decide whether the account is a pattern.
• A buyer who wants to cancel before you have ordered from the supplier. Our guide on how to cancel an order on eBay as a seller walks through that flow.

Keep in mind what a block does not do. It does not remove feedback the buyer already left, and it does not close an open return or case. If a buyer breaks eBay's rules, use the Report an issue with a buyer option in eBay Help as well, so eBay has the full history. Late shipments and case outcomes sit on a separate scorecard, which our explainer on eBay seller performance metrics breaks down line by line.

Unblock, restore or review your list

Lists grow fast on a busy store, and a name you blocked after one bad week may belong to a buyer you would happily sell to now. Review the list every few months.

1. To unblock a buyer, open the same Block bidders or buyers page, delete the username from the text box, and select Submit.
2. To restore an earlier list, select Restore list on that page. eBay keeps a past version, which helps if a name was deleted by accident.
3. To keep a backup, copy the whole text box into a spreadsheet each quarter with the date and a one-line reason for each name. A VA or a second account manager can then see why each block exists.

A reason column pays off when you add a new eBay account or a VA. Instead of rebuilding the list from memory, you paste the names into the new account's block page in one go. Sellers running several eBay accounts on Ecomli's Scale plan, which includes three eBay account seats and one VA seat, often keep this sheet next to their order notes so the team works from one record.

How to block a buyer on eBay less often with a prevention routine

Most of the buyers that sellers end up blocking started as an ordinary order that went quiet. A parcel with no visible tracking, an item that sold out at the supplier, or a question that waited two days for a reply turns a normal buyer into an angry one. Blocking is useful, but a store that removes those triggers will need the list far less often. This is where Ecomli's features line up with the problem.

Out-of-stock sales lead to cancellations. When a supplier sells out after your listing goes live, you end up canceling a paid order, and that buyer may never trust your store again. Ecomli's Stock Monitoring checks Amazon and AliExpress stock and prices for your Ecomli listings, then updates eBay quantity and price or ends the listing using your rules. If a supplier read fails, the listing is held unchanged instead of being ended by mistake.

Missing tracking leads to "item not received" claims. Buyers who cannot follow a parcel open cases. Tracking Conversions with Aquiline converts supported AliExpress tracking and Amazon TBA numbers into eBay-compatible tracking, then adds it to the eBay order after its automatic checks, so the buyer can follow delivery from their eBay order. Our guide to the Amazon TBA tracking number on eBay explains why that conversion step matters.

Silence leads to escalation. A shipping notice sent at the right moment heads off most of the "where is my order" messages that sour a buyer. Ecomli's Auto Messages sends rule-based messages for purchase, shipping and feedback events, and it skips buyers who have an open issue or an existing conversation, so a frustrated buyer does not receive a cheerful feedback request. See how sellers set up the feedback side in our article on automating eBay feedback.

Refunds still happen. When one does, record it properly. The Overview dashboard shows eBay sales, fees, refunds and supplier costs by period, so you can see which items keep producing refunds and drop them before they produce another blocked buyer. If you need the steps, read how to refund a buyer on eBay.

A store with fewer cases and cancellations also builds the steady record eBay looks at when sellers ask for higher limits, which our guide on growing your eBay selling limits covers. You can see how these tools connect on the Ecomli platform overview, and the full plan breakdown is on the Ecomli pricing page.

Frequently asked questions

Does the buyer know they have been blocked?

eBay does not send the buyer a notice when you add them to your blocked buyers list. They find out only if they try to bid on or buy one of your items and eBay stops the purchase.

How many buyers can I block on eBay?

You can add up to 5,000 usernames to the blocked buyers list on each eBay account. Separate names with a comma, and keep a dated backup so you can rebuild the list on a new account.

Can a blocked buyer still message me?

Buyer requirements include an option to stop blocked buyers from contacting you. Turn it on in Buyer Management if you want the block to cover messages as well as purchases.

Does blocking a buyer cancel their current order?

No. A block applies to future bids and purchases. An order placed before the block stays open, so ship, cancel or refund it through the usual order flow in Seller Hub.

What is the difference between blocking and buyer requirements?

Blocking targets named usernames you choose. Buyer requirements filter any account that matches a rule, such as an excluded shipping location or a history of canceled orders because the buyer did not pay.

The routine above leans on two Ecomli features above all: Stock Monitoring, which keeps sold-out supplier items from turning into canceled orders, and Tracking Conversions, which gives buyers tracking they can follow from their eBay order.

Ready to run this on your own eBay store? Get started with Ecomli → Plans from $29/month · 7-day money-back guarantee on your first payment · cancel any time.