How to Block a Buyer on eBay (Step-by-Step Guide for Sellers)

To block a buyer on eBay, go to ebay.com/bmgt/BuyerBlock while signed in, type the buyer's username into the box, and click Submit. That buyer can no longer bid on or buy any of your listings. You can add up to 5,000 usernames to your eBay block buyer list, and changes take effect across all your listings within about a minute.

That is the short version. The longer version matters because blocking has real limits: a blocked buyer can still see your listings, still message you unless you flip one extra setting, and still leave feedback on any order they completed before the block. This guide covers the exact steps on desktop and in the eBay app, how to manage and clean up your blocked buyer list, and what blocking actually does and does not stop.

What Happens When You Block a Buyer on eBay?

So can you block a buyer on eBay completely? Not quite. Blocking is a purchase block, not a full ban from your store. Here is exactly what changes when a username lands on your list:

What blocking stops:

• The buyer cannot bid on your auctions
• The buyer cannot use Buy It Now on your fixed-price listings
• The buyer cannot send you offers on listings with Best Offer enabled
• The block applies to all your current and future listings, on every eBay site, within about 60 seconds

What blocking does not stop:

• The buyer can still view your listings and your store. Blocking hides nothing.
• The buyer can still message you through eBay, unless you disable that separately (covered below)
• The buyer can still leave feedback, open a return, or file an item-not-received case on any transaction that happened before you blocked them
• The buyer can still buy from you with a second account, since eBay blocks the username, not the person

That last point trips up a lot of sellers. If a bad actor really wants your item, a fresh account takes five minutes to create. Blocking solves the common cases: serial returners, buyers who file claim after claim, non-payers on auctions, and buyers who send abusive messages. It is not a fraud shield.

One more thing blocking is not: retaliation-proof feedback removal. If a buyer already bought from you, blocking them afterward does not remove their ability to leave feedback on that order. Block early, before the next purchase, not as a reaction you expect to undo the last one.

How to Block a Buyer on eBay (Desktop)

The fastest path is the direct link. Here is the full process:

• Sign in to eBay on your desktop browser.
• Go to the Block bidders or buyers from your listings page at ebay.com/bmgt/BuyerBlock. If you are not signed in, eBay redirects you to sign-in first and then drops you on the right page.
• Type the buyer's username into the text box. To block several people at once, separate usernames with commas or put each one on its own line.
• Click Submit. The list saves immediately and applies to every listing you have live.

If you prefer navigating instead of using the direct URL: hover over your name in the top corner, open Account Settings, go to Selling Preferences, and look for the blocked buyer or bidder list link under the buyer management section. Both routes end at the same page.

Finding the exact username: you need the buyer's user ID, not their real name. Pull it from the order details page, from the message they sent you, or from the bid history on your auction. Usernames must match exactly, so copy and paste rather than retyping from memory. One typo and you have blocked a stranger while the actual problem buyer keeps bidding.

Blocking from an order or message: eBay does not put a one-click Block button on most order pages, so the practical workflow is: copy the username from the order or message, open the BuyerBlock page in another tab, paste, submit. It takes about 20 seconds once you have the link bookmarked, which is worth doing if you sell at any volume.

How to Block a Buyer on the eBay App

Here is the honest answer on how to block a buyer on eBay app users keep searching for: the eBay app has no dedicated block button in its settings. You have two workable options on mobile.

Option 1: use your phone's browser (fastest).

• Open Safari or Chrome on your phone.
• Go to ebay.com/bmgt/BuyerBlock and sign in if prompted.
• Paste or type the buyer's username into the box.
• Tap Submit.

The mobile browser version of the page works exactly like desktop, and the block syncs to everything, including sales made through the app, within seconds.

Option 2: go through Help inside the app.

• Open the eBay app and tap My eBay, then find Help & Contact.
• Search for "block a buyer."
• The help article links directly to the blocked buyer list page, which opens in an in-app browser view.
• Add the username and submit.

Either way you land on the same list. There is no separate app-only block list, so anything you add from your phone shows up when you check on desktop and the other way around. If you manage your store mostly from your phone, bookmark the BuyerBlock URL in your mobile browser: it saves you the Help search every time.

How to Manage Your eBay Blocked Buyer List

Your eBay buyer block list is one plain text box, which is crude but easy to manage once you know the rules:

• Capacity: up to 5,000 usernames. Almost nobody hits this ceiling, but high-volume sellers who block aggressively for years can get close. If you do, prune usernames from buyers whose accounts no longer exist.
• Adding buyers: paste new usernames into the box, separated by commas, and submit. Existing entries stay put.
• Unblocking a buyer: delete their username from the box and click Submit. The change applies immediately, and they can buy from you again with no notification that anything ever happened.
• Restoring past versions: the page keeps a restore option so you can revert recent changes if you mangle the list, useful if you accidentally wipe entries while editing on a phone keyboard.

Keep notes on why you blocked people. eBay stores the usernames but not your reasons. Six months from now, "gadget_guy_442" means nothing to you. A simple spreadsheet with username, date, and reason ("filed 3 INADs in 2 weeks," "abusive messages after auction ended") lets you make sane decisions when someone emails asking to be unblocked.

Blocking one buyer at a time does not scale. If the same problems keep recurring, set up buyer requirements, which block whole categories of risky buyers automatically. In your selling preferences, under buyer management, you can automatically block:

For dropshippers these requirements matter more than the manual list. When you run hundreds or thousands of listings, you will never manually spot every risky buyer, and one unpaid auction or fraudulent return hurts more when your margins are already thin. Run the numbers on what a single bad transaction costs you with our eBay fee calculator, and it becomes obvious why prevention beats cleanup. The same logic applies to the listing side: tools like SuperDS handle price and stock monitoring automatically precisely because manual checking breaks down at scale, and buyer requirements are eBay's version of the same idea for the buying side.

One caution: do not block buyers for asking questions. Some sellers block anyone who messages before buying. That filters out a few time-wasters and a lot of legitimate careful buyers. Reserve the list for actual behavior: non-payment, claim abuse, harassment, feedback extortion. If a buyer threatens negative feedback unless you give a partial refund, that is feedback extortion, and you should report them to eBay before blocking, since eBay can remove the feedback and sanction the account.

Can a Blocked Buyer Still Contact You?

Yes, by default a blocked buyer can still message you through eBay. Blocking stops purchases, not conversation. If the whole reason you blocked someone is a stream of hostile messages, you need one more setting:

• Go to your Selling Preferences and open the buyer management section (or search "buyer management" in eBay Help for the direct link).
• Find the option labeled "Don't allow blocked buyers to contact me" or similar wording about blocked buyer messages.
• Check the box and save.

With that enabled, anyone on your block list gets an error when they try to message you about your listings. Keep two caveats in mind:

• Open transactions override the setting. If you have an active order with the buyer, eBay keeps the communication channel open so the transaction can be completed or disputed. The message block fully applies only when there is no live business between you.
• Harassment through other channels is a report, not a block. If a blocked buyer creates new accounts to keep messaging you, or contacts you outside eBay, report them through eBay's Report a buyer flow. Document everything: eBay acts on patterns, and message screenshots are your evidence.

Does the buyer know they are blocked? eBay never sends a notification. The buyer finds out when they try to bid or buy and gets a message saying the seller is not accepting bids or purchases from them. Expect the occasional angry message about it if you have not turned off blocked buyer contact, which is one more reason to flip that setting at the same time you block.

Blocking Is Damage Control. Prevention Is Cheaper.

A block list handles the buyers who already cost you money. The bigger wins come from not attracting problems in the first place:

• Accurate listings reduce disputes. Most INAD claims start with a title or photo that oversold the item. Clean, honest listings are cheaper than the returns.
• Stay clear of policy trouble on your own side. A buyer who reports your listing for intellectual property violations can hurt you far more than a non-payer. If you dropship branded or brand-adjacent products, screen them with a VeRO checker before listing, and make sure your fulfillment model complies with eBay's dropshipping policy.
• Set buyer requirements once, benefit forever. Five minutes in selling preferences filters out the majority of unpaid-item repeat offenders without you lifting a finger again.

Block fast when a buyer shows you who they are, flip the contact setting so the story actually ends, and let buyer requirements handle the rest in the background. Your block list should grow slowly. If it is growing fast, the problem is usually upstream in the listings, not downstream in the buyers.