How to choose white-label auction software: a buyer's guide

Written by Auction Experts, who supply one of the platforms in this category. The comparisons below are stated as plainly as we can make them, and where a competitor does something differently we have said so.

1. White label, marketplace, or build your own?

There are three routes to selling online, and they differ in who owns the bidder.

A marketplace lists your lots alongside other sellers'. It brings its own audience, which is real value if you have none, but the bidder belongs to the marketplace and you pay for access to your own buyers indefinitely.

White-label auction software gives you your own platform under your own brand. The bidder registers with you, the data is yours, and the commercial terms are yours. You supply the audience.

Building your own gives you total control and costs more than almost everyone expects — not in version one, but in the years of maintaining a real-time bidding engine, payment handling and VAT logic.

Most established auction houses with an existing client list end up on white label. Houses with no audience at all often start on a marketplace and move.

2. Does it run the auction formats you actually sell?

Ask specifically for: timed online auctions, live auctions with remote bidding, sealed bids, and Dutch auctions. Ask whether they run in one back office or as separate products. A platform that handles timed sales beautifully but treats a live sale as an add-on will cost you a second system later.

3. What happens in the last thirty seconds?

This is the question that separates auction platforms from e-commerce platforms with a bid button. Ask: does a bid near the close extend the lot, and by how long? Do lots close in sequence or all at once? What happens if two bids arrive in the same second? What has the platform done under its heaviest load?

Anyone who has run online auctions can answer these immediately. Hesitation here is the most useful signal in the whole evaluation.

4. Can it take your catalogue without re-typing it?

Ask for batch upload from a spreadsheet and a REST API for lot creation and updates. If your cataloguing already happens in another system, the API is what stops the auction platform becoming a second place your staff type everything.

Ask specifically whether the API supports translations and metadata, not just title and price — this is a common gap.

5. Does the invoicing actually work?

Auction invoicing is not e-commerce invoicing. It needs buyer's premium, VAT on the premium at the right rate, margin scheme handling where it applies, per-buyer shipping, and the ability to correct an invoice after the fact. Ask to see a real generated invoice, not a screenshot of the invoice settings.

Ask which payment providers connect, and whether payments settle to your account directly or pass through the vendor's.

6. How white is the white label?

"White label" is used loosely. Check each surface separately: the domain, the site design, the outgoing emails, the invoice PDFs, and the mobile apps. Ask whether the mobile app is published under your developer account or theirs — many vendors publish a single shared app with your logo inside, which is not the same thing.

7. What does it really cost?

Compare on three numbers, not one: the monthly subscription, the one-off implementation fee, and anything charged per transaction or as a share of hammer. A low monthly with a percentage of hammer becomes the most expensive option the moment you succeed.

Ask what a design change costs after launch, and what happens to the price as your volume grows.

For reference, published European pricing in this category tends to run from a few hundred euros a month for a templated site to four figures for a fully branded platform with API access. Auction Experts publishes its own prices — €720 per month for the Professional plan, with implementation from €2,450, and Enterprise on request — because we think you should be able to compare without booking a call. Several competitors do not publish at all.

8. Who is going to be there in five years?

Auction software is infrastructure. Migrating a bidder database, a catalogue history and years of invoices is genuinely painful. Ask how long the vendor has run auctions, how many they run now, where the platform is hosted, and who owns the company.

A short checklist

• Runs timed, live, sealed and Dutch sales in one back office
• Extends lots on late bids; staggered closing
• Batch upload and REST API for lots, bidders and results
• Buyer's premium, VAT and margin scheme handled correctly
• Payments settle directly to your account
• Your domain, your emails, your invoices, your app
• Published pricing, with implementation and any per-transaction fee stated
• European hosting if your bidders are European
• A named reference customer of your size you can call

Where Auction Experts fits

Auction Experts is a white-label online auction platform running for twenty-seven years from Amsterdam, hosted on Microsoft Azure, covering timed, live, sealed and Dutch auctions in one back office, with a REST API, native branded mobile apps and published pricing. It suits auction houses that already have a client list and want to own the bidder relationship. It is not a marketplace and will not bring you an audience.

If that is the shape of what you need, the pricing page has the plans in full.