How to Win Online Auctions: A Bidder's Playbook

What is the best strategy to win an online auction?

Winning is easy if you will pay anything. Winning at a price you are glad about takes a number decided in advance. Look up what the item sells for used, subtract what you want to save, and that is your all-in limit: the most you will pay including fees and tax.

Then work backward to a hammer bid. With a 15% buyer's premium and 8.25% sales tax, every $1 of hammer costs about $1.245. So a $250 all-in limit means a max bid of about $200: $200 plus a $30 premium is $230, and $18.98 of tax brings it to $248.98.

Enter that as your max bid and let the system bid one step at a time for you. You often win for less than your max, because the price only climbs one increment past the next highest bidder.

Should you bid early or at the last second?

On a hard-close auction, waiting until the final seconds can work, because rivals have no time to answer. That tactic is called sniping. On a soft-close auction it does not work: a late bid resets the lot's clock to the full window, so everyone gets time to respond.

Bidding early with a max has a quiet advantage. On Auktia, when two bidders set the same max, the earlier one wins. If you and a rival both decide $300 is the limit, the person who entered it on Tuesday beats the person who typed it in the last minute.

Which auction lots are easiest to win?

The best odds are on lots that fewer people can or will bid on. Competition, not the item, sets the price, so look for friction that keeps the crowd small.

• Pickup-only lots outside big cities. Fewer bidders can make the drive.
• Large or heavy items. Furniture, safes and machinery scare off bidders without a truck.
• Lots that close late in a long sale. Some bidders run out of budget or patience after the first hour of closings.
• Mixed box lots. A box with one thing you want and several you don't can sell for less than the item alone.
• Poorly photographed lots. A dark photo hides value from casual browsers, so ask the house a question and look closer.
• Midweek closings, which can draw fewer people than a weekend night.

How do you keep track of many lots at once?

Watch only the lots you would truly buy, and note each one's closing time. Most timed sales close lots in order a set gap apart, so lot 120 might end an hour after lot 1. Set your max bids before the closing starts, then turn on outbid alerts so you only act when something changes.

Keep a running total. If you set max bids on ten lots and win them all, can you pay for all ten and haul them home? New bidders often win more than they meant to, because every max bid can hit at once.

What mistakes make bidders lose or overpay?

Most losses come from emotion or missing information, not from being outbid by a richer rival.

• Bidding against the clock instead of against a number. Decide the limit first.
• Raising your max in the final minutes because someone else wants the lot. Pushing the price is the auction's job, not yours.
• Ignoring the reserve. If it is not met, the lot will not sell no matter how long you wait.
• Skipping inspection. A great price on a broken item is not a win.
• Forgetting the pickup window. If you cannot collect by the remove-by date, the deal can disappear.