Choose the Right Online Auction Software for UK Charities

Online auctions are a powerful tool for UK charities, but the success of these events largely depends on the software used to run them. The right platform can streamline bidding, keep your supporters engaged throughout the evening, and make sure the money raised actually reaches your cause.

This guide walks you through the essential features to look for in online auction software, explains the UK regulatory context that US guides miss entirely, and gives you an honest comparison of the platforms a UK Fundraising Manager will actually consider.

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In this article:

• What is online auction software?

• Why UK charities run online auctions

• The best online auction software for UK charities

• Auctions, raffles and the Gambling Act: know the difference

• What UK charities should look for in silent auction software

• Launch your online auction for free with Zeffy

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What is online auction software?

Online auction software is a digital tool for creating, managing and running online or mobile auctions.

These platforms let charities host auctions where supporters can place bids on items or services from anywhere, and they automate much of the administration that would otherwise fall to volunteers.

In the UK, a charity auction sits under the Fundraising Regulator's Code of Fundraising Practice, which was updated on 1 November 2025 with a new Section 9 covering online fundraising platforms. Any prize draw or raffle you run alongside your auction is a lottery under the Gambling Act 2005, see the section below on auctions, raffles and the law.

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Core features of online auction software

• User registration and authentication: Secure, straightforward sign-up for bidders and your team.

• Auction creation: Tools to list items, set starting bids, reserve prices and auction timelines.

• Bidding: Real-time bid tracking, automatic bid increments and outbid notifications.

• Payment processing: Integration with payment providers to handle transactions securely.

• Reporting and analytics: Insights into auction performance, bidder activity and financial summaries.

• Customisable interface: Options to brand the auction site with your charity's colours and logo.

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Why UK charities run online auctions

Online auction software helps charities:

• Reach supporters beyond your postcode. Mobile bidding means donors who cannot attend in person can still participate and compete for lots.

• Cut venue and staffing costs. The platform automates administrative tasks, outbid notifications, payment collection, item tracking, freeing your volunteers for the evening itself.

• Raise more per lot with live bidding. Real-time competition between bidders drives up final amounts, and secure payment collection means winners pay promptly.

• Learn what your supporters bid on. Auction software collects data on bidder behaviour and preferences, helping you choose better lots next time and tailor your communications.

• Give supporters a smoother way to bid. Mobile-first bidding, live chat and supporter feeds make the experience feel slick rather than chaotic.

• Handle Gift Aid on top-up donations correctly. If a winning bidder adds a voluntary donation on top of their lot price, that additional amount can be Gift Aid eligible with a valid declaration (see below for the full rule).

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Handle Gift Aid on auction lots correctly

This is the detail that US auction guides get wrong for UK charities, and getting it wrong risks an HMRC clawback.

Gift Aid does not apply to the winning bid at fair value. When a supporter pays for an auction lot, they are buying goods or services. Because they receive something of value in return, HMRC's Gift Aid rules do not allow the charity to reclaim tax on that payment.

Gift Aid can apply to a genuine top-up donation. If a lot sells for materially more than its fair market value, HMRC allows the excess to be treated as a donation under the 'split gift' rules, provided the fair value of the lot is stated clearly at the point of sale, and the bidder makes a valid Gift Aid declaration on the excess amount (full name, home address, charity name and confirmation they have paid sufficient UK tax). Higher-rate and additional-rate taxpayers can reclaim the difference between basic rate and their rate through Self Assessment. The Charity Tax Group is the technical reference for edge cases on split-gift treatment.

Raffle tickets run alongside the auction are never Gift Aid eligible, regardless of the circumstances.

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The best online auction software for UK charities

Zeffy

Zeffy is a completely free fundraising platform for UK charities. You can launch auctions, track supporter information, process payments and manage your whole fundraising operation, at no cost. Unlike most platforms, Zeffy is a genuine all-in-one solution: event ticketing, membership management and online auctions all sit in the same place, so you are not stitching together three separate tools for one gala night.

A small UK charity running a Christmas ball currently pays Ticket Tailor for the gala ticket, Givergy or GalaBid for the mobile auction, and JustGiving for the appeal donate page, and then reconciles three separate payment streams at the end of the night. Zeffy consolidates all of that, free.

Pricing:

Zeffy is completely free for charities. When someone makes a donation through your fundraising form, they have the option (but are never obliged) to make a voluntary contribution to Zeffy. Enough supporters do so to cover every fee, so your charity pays nothing, ever.

Features:

• Custom auction forms: add images, minimum bid increments, starting prices and descriptions for each lot.

• Fully branded experience: add your charity's logo, colours and a banner to make the form your own.

• Easy payment collection: payments are collected automatically once the auction closes.

• Simple bid and sales tracking: monitor who is bidding on which lots in real time, identify items with no bids, and follow how much your auction has raised.

• Straightforward mobile bidding: forms are optimised for mobile, making it easy to bid from anywhere. Display your auction QR code at your event to send supporters straight to the bidding page.

• All-in-one fundraising platform: donation forms, a CRM, event ticketing and more, all free.

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Givergy

Givergy is a London-based mobile-bidding platform built specifically for charity galas and black-tie fundraising events. Its 'Keep it FREE!' initiative means the platform charges no fee to UK charities, instead, donors can voluntarily cover the platform and payment processing costs at checkout. Givergy has a strong track record at UK gala dinners and has won multiple event-technology awards.

What works well for small UK charities: The donor-covered fee model is a direct response to the platform-fee complaints that have dogged the sector, and the mobile-bidding experience is polished for a formal evening setting.

Where it falls short: Givergy is a live-event auction tool, not an integrated fundraising stack. You will still need separate platforms for your gala ticket sales, your appeal donation page and your supporter database. If you are running a summer fete or a lower-key auction rather than a black-tie gala, the platform may feel like more than you need.

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GalaBid

GalaBid is a global silent-auction and mobile-bidding platform with over ten years of UK track record. It is used by UK schools, sports clubs and hospital fundraising teams, and handles silent auctions, raffles, ticketing and donations from a single mobile-bidding interface. Its sister product CrowdComms provides a broader event-technology suite.

What works well for small UK charities: GalaBid's breadth, silent auctions, raffles, ticketing and donations in one platform, makes it a genuine option for charities that want more than a pure auction tool. The UK support and local reference customers give it credibility with trustees.

Where it falls short: Fees vary by pricing tier, so it is important to confirm the current UK rate directly from GalaBid before committing. The playbook for UK charity content flags a formal complaint that arose from an inaccurate fee figure being published, always verify live. GalaBid is also primarily an event-night tool; it does not replace a year-round fundraising platform or CRM.

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How UK charity galas usually stack their tools

Most small-to-mid UK charities running a gala currently operate across four or five separate platforms: Givergy or GalaBid for the mobile auction, JustGiving or Enthuse for the appeal donation page, Ticket Tailor or TicketSource for the gala ticket, and a CRM such as Beacon or Donorfy for supporter records. Each platform carries its own fee structure, its own login, and its own payment reconciliation. Zeffy's case for UK charities is straightforward: replace that entire stack with one free platform, and keep 100% of every pound raised.

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Auctions, raffles and the Gambling Act: know the difference

This distinction matters because gala organisers routinely run a silent auction and a prize draw on the same night, and the two are treated entirely differently in law.

A silent or live auction is not a lottery. The highest bidder wins a specific lot. There is no random element, so the Gambling Act 2005 does not apply to the auction itself.

A prize draw or raffle is a lottery. If supporters buy tickets for a random draw, that is a lottery under the Gambling Act. Most charity prize draws are 'small society lotteries', which do not require a Gambling Commission operating licence, but they do need to be registered with your local licensing authority (council). Registration costs £40 initially and £20 on annual renewal. A single draw is capped at £20,000 in ticket sales, with an annual aggregate cap of £250,000. At least 20% of proceeds must go to the charity's good cause, and the maximum single prize is £25,000.

The one exception is an incidental non-commercial lottery: a raffle where tickets are sold and the draw is conducted entirely at the event, with no advance sales. These require no registration.

For full details, see the Gambling Commission's guidance on small society lotteries.

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What UK charities should look for in silent auction software

Selecting the right silent auction software is one of the most important decisions in your event planning. Here are the criteria that matter most for UK charities:

• Gift Aid handling at checkout. The platform must block Gift Aid on the fair-value portion of each lot and, where applicable, offer a Gift Aid declaration on any voluntary top-up donation the winning bidder adds. Getting this wrong risks an HMRC clawback. Cite HMRC's Gift Aid guidance to your software vendor and ask them to show you exactly how the form handles it.

• UK payment processing. Look for Stripe (standard UK card rate: 1.5% + 20p per transaction), Apple Pay, Google Pay and PayPal UK. Some US-origin platforms settle only in USD or apply US card rates, confirm the platform settles in sterling before signing up. For any recurring giving add-on, GoCardless is the UK standard for Direct Debit.

• UK data protection compliance. Under UK GDPR and the Data Protection Act 2018, any platform processing your supporters' personal data must have a lawful basis for doing so, operate as an ICO-registered data controller, and have a valid mechanism for any international data transfer. Ask the vendor directly. As one small-charity trustee put it during research: 'Are you GDPR compliant? That would be important, obviously.'

• Fundraising Regulator alignment. The Code of Fundraising Practice (effective 1 November 2025, including Section 9 on online fundraising platforms) sets conduct expectations for any platform your charity uses. Ask the vendor how they support Code compliance.

• Ease of use. The software should have an intuitive interface for both your admin team and your bidders on the night.

• Mobile compatibility. Supporters will bid from their phones. The platform must work seamlessly on iOS and Android without requiring a separate app download.

• Item tracking. Track the status and bidding history of each lot throughout the event.

• Real-time bidding. Supporters should see the current highest bid instantly, so competition feels live.

• Automatic bid increments. The software should increase bids by a predefined amount without manual intervention.

• Max bidding. Allow supporters to set a maximum bid, with the system automatically raising their bid up to that limit.

• Outbid notifications. Automatic alerts keep bidders engaged and drive re-bidding.

• Integrated payments. Support for debit and credit card via Stripe or similar, Apple Pay, Google Pay and PayPal UK.

• Seamless checkout. A straightforward checkout process for winning bidders, with clear confirmation of what they have won and what they owe.

• Auction reports. Detailed reporting on bidding activity, lot performance and overall auction income.

• Branded auction pages. The ability to customise your auction pages with your charity's logo, colours and theme.

• Customer support. Reliable support by phone, email or live chat, plus training materials to help your team get started.

• CRM integration. Check that the platform integrates with your existing supporter database, whether that is Beacon, Donorfy, ChurchSuite (for churches) or Membermojo (for small clubs and associations).

• Scalability. Whether you have ten lots or two hundred, the platform should handle your event without performance issues.

• Affordability. Consider the full cost: platform fee, payment processing fee, and any per-lot or per-transaction charges. A platform that looks free at sign-up may carry hidden costs that eat into your proceeds.

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Tap-to-pay at auction events

'People are not carrying around cash like they used to... they have no credit card transaction mechanisms.' That observation from Mick, a village hall trustee, captures a real shift in UK community fundraising. At auction check-in and for door sales on the evening, you need a card payment option.

Two approaches work well for UK charity events: tap-to-pay from a smartphone using Zeffy's mobile tools, or a dedicated contactless donation device such as a GoodBox unit. The smartphone route costs nothing extra; a dedicated device involves hardware costs and per-transaction fees but can work well for charities running regular in-person events.

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Launch your online auction for free with Zeffy

Running an effective and enjoyable auction for your charity need not be complicated. With the right platform, your team can focus on the event rather than the administration.

By using free online auction software like Zeffy, your charity can make bidding simple and enjoyable with mobile bidding, automated outbid notifications, easy checkout and Gift Aid handling on any top-up donation your winning bidder adds. Zeffy also gives you free marketing and communication tools so you can share auction rules with supporters ahead of the event and follow up with a thank-you message once the hammer falls.

Rather than paying Givergy for the auction, JustGiving for the appeal, and Ticket Tailor for the gala ticket, and then reconciling three payment streams, run everything through Zeffy for free and keep 100% of every pound your supporters give.

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