At JPS Chartered Surveyors, we’ve spent decades working as trusted valuers, auctioneers, and specialist in business asset auctions, industrial equipment sales, and surplus stock disposals. Over this time, we’ve helped thousands of buyers successfully secure everything from specialist machinery to consumer goods.
Buying at online auctions is one of the best ways to unlock savings, access hard-to-find and specialist items, and source equipment or stock for both businesses and personal use. But whether you’re a first-time bidder, a seasoned reseller, or a business owner searching for equipment, it’s surprisingly easy to fall into common pitfalls that can affect your experience.
Even experienced bidders can fall into these traps, so here are the insider tips, straight from professional auctioneers, to help you avoid the most common online auction mistakes.
Mistake 1: Forgetting to Calculate the Real Total Cost
One of the biggest auction buyer mistakes we see is underestimating the true cost of an auction purchase. many first-time bidders focus solely on the hammer price and forget to factor in VAT and Buyer’s Premium. This can quickly turn what looked like a bargain into an unexpected expense.
How to avoid it:
Before placing a bid, make sure you understand every cost involved:
- Buyer’s Premium: This is a standard auction fee added to the hammer price. JPS Buyer’s Premium varies between 10% – 18% and is always displayed clearly in each auction.
- VAT: VAT may apply to the hammer price, the Buyer’s Premium, or both, depending on the lot and auction type.
To avoid overspending, set a budget including all fees:
Maximum Budget = (Your Max Bid) + (Buyer’s Premium) + (VAT)
Maximum Bid = (Maximum Budget) – (Buyer’s Premium) – (VAT)
This one step alone helps buyers stay in control and avoid the number one mistake people make when buying at auction.
Mistake 2: Not Fully Reading Lot Descriptions
In online auctions, the lot description is your best friend, but many bidders skip it. Important details such as condition, dimensions, faults, testing and refurbishment notes are all included there. Skimming can mean missing phrases like “sold as seen,” “fault…”, etc., which may affect sustainability or value.
Take time to read every part of the description, not just the headline.
- Look out for common auction wording that describes the condition honestly and clearly.
- Always check ALL photos – zoom in, compare angles, and look for wear or missing components.
- If something isn’t clear, ask! Our team is always happy to answer any questions or clarify details when possible.
This one action is one of the most effective buying at auction tips you’ll ever use.
Mistake 3: Not Checking Collection, Delivery or Removal Requirements
Some buyers place bids before checking how or when they can collect the item, especially heavy, bulky, or specialist equipment. Certain lots are collection only, meaning we cannot package or deliver them. Others may require lifting equipment, PPE, or specific removal time slots.
Missing these details can lead to unexpected transport costs or logistical challenges.
How to avoid it:
Before bidding:
- Check the collection deadline, auction location, and removal rules.
- Ensure you have the right transport, whether that’s a van, trailer, pallet service, or specialist machinery mover.
- Confirm vehicle access requirements or time-slot restrictions.
- If you need delivery, enquire about this before bidding.
Being prepared saves time, money, and stress and ensures a smooth auction experience.
Mistake 4: Not Viewing Items In Person When Possible
Viewing days exist for a reason, but many buyers rely solely on photos. While our catalogue images are accurate and detailed, nothing compares to seeing an item in person. You may miss physical details like wear, scale, or operational quirks. This is especially important with machinery, power tools, vehicles or high-value goods.
How to avoid it:
If a viewing day is offered, take advantage of it.
- Inspect accessories, components and key features.
- Confirm the condition and look for any wear or damage.
- If you can’t attend in person, ask our team about extra details, additional photos, or (where available) a video call inspection.
This is one of the most powerful online auction tips for ensuring you get exactly what you expect.
Mistake 5: Waiting Until the Last Minute to Register or Bid
Leaving registration or bidding until the final minutes is a common but avoidable mistake. Registration issues can delay access, and waiting to “jump in at the end” often leads to missed lots, especially in auctions that use automatic extensions or rapid closing times.
How to avoid it:
- Register early and make sure your account it fully verified.
- Browse and review lots ahead of the closing day.
- If you can’t be online when the auction ends, set maximum bids so the system can bid on your behalf.
This ensures you won’t miss out on potential bargains during busy auctions.
Preparation is the secret weapon of successful auction buyers. By understanding total costs, reading descriptions carefully, planning collections, and using viewing days, you’ll avoid the most common online auction mistakes and make smarter, more confident bidding decisions.
Buying at auction remains one of the best ways to secure exceptional value, source unique items, and access high-quality equipment below retail prices. If you’re ready to put these insider tips into practice, explore our current sales and discover what’s available.
Register today and browse our latest auctions with JPS, your trusted auctions and valuation experts.