Is eBay sniping allowed? The actual rules

What eBay actually says

eBay's bid-sniping help page states that the practice is allowed on eBay, including software that places bids for you (checked 2026-08-20). The page even explains why snipers still lose: another bidder's automatic bid can already be higher than your last-second number.

The perennial forum threads demanding sniping be banned are sellers and outbid buyers venting, not policy. If a last-second bid wins, the seller still got the highest price anyone was willing to pay.

Sniping the bid vs sniping the deal

Collectors use the word sniper for two unrelated tools, and both are allowed. A bid sniper places your maximum bid in the closing seconds of an auction you already found. A deal sniper, which is what CardboardSniper is, finds the listing in the first place: it watches new listings around the clock, prices them against real sold comps, and alerts you while the deal is still buyable. It never bids on anything.

Most underpriced cards are Buy It Now listings, where there is no bid to snipe and the entire contest is who sees the listing first. That is why alert speed beats bidding tactics for deal hunting.

What actually breaks the rules

The conduct eBay does prohibit has nothing to do with timing your bid:

• Shill bidding: bidding on your own items or having friends inflate your auctions.
• Bid manipulation: bidding solely to expose the high bidder or to push prices with no intent to buy.
• Fee avoidance: contacting a seller to complete a listed sale off eBay.
• Non-payment: winning auctions, sniped or not, and failing to pay.