The 7 best free payment processors for UK charities in 2026

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In this article:

• Our top picks for free payment processing in 2026

• What is free payment processing for charities and how does it work?

• How to find the best free payment processor for your charity

• The 7 best free (and free-ish) payment processors for UK charities in 2026

• Handle Gift Aid properly, or leave 25p per £1 on the table

• Choosing the best payment processor for your charity

• Frequently asked questions

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Our top picks for free payment processing in 2026

• 1. Zeffy: the only truly free UK charity payment stack

• 2. GoCardless: the UK Direct Debit standard for regular giving

• 3. Stripe UK: the best for custom integrations

• 4. PayPal UK: best for donor familiarity

• 5. Wonderful.org: best for Open Banking / Pay by Bank at 0%

• 6. JustGiving: the UK household name (with caveats on fees)

• 7. SumUp / Zettle: best for card readers at fetes and door collections

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What is free payment processing for charities and how does it work?

"Free payment processing" is one of the most misused phrases in charity software marketing. Before you compare platforms, it helps to understand the different models hiding behind the word "free."

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Why UK charities pay more than they think

A small UK charity running a full fundraising calendar typically stitches together several tools: Ticket Tailor for the summer fete, JustGiving for the autumn appeal, Crowdfunder for a Christmas campaign, and a separate CRM for donor records. On top of each platform's fee, there is card processing on every transaction. Add a GoCardless Direct Debit subscription for regular givers and the monthly outgoings mount up before you have raised a penny. This article is not just about replacing JustGiving. It is about understanding the real cost of a fragmented tool stack and whether a single platform can consolidate it for nothing.

This is the reality for many of the charities Zeffy works with: a village hall treasurer paying per-ticket fees on Eventbrite that wipe out the fete profit; an unincorporated community group locked out of the better charity-rate pricing because they do not yet hold a charity number. Fee structures that feel small in isolation compound across a fundraising year.

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The models of "free" processing

1. Tip-funded (platform absorbs all fees). The platform charges the charity nothing: no platform fee, no processing fee. Revenue comes from optional voluntary contributions that donors can add at checkout. This is the only model where 100% of a donation reaches the charity. Zeffy is the example on this list.

2. Discounted UK charity rates. The processor offers verified registered charities a lower per-transaction rate than its commercial customers. Stripe UK: 1.5% + 20p on UK cards. GoCardless: 1% + 20p per Direct Debit transaction, capped at £2, with a 25% charity discount available. PayPal UK: discounted charity rates via the PayPal Giving Fund. The charity still pays a fee on every donation; it is simply a smaller fee. This is "cheaper," not free.

3. Donor-covered fees. Most platforms offer a checkbox at checkout asking donors to add a small percentage to cover processing. When a donor opts in, the charity nets close to 100%. When they do not, the fee comes out of the donation. UK donors are more fee-sensitive than their US counterparts: Money Saving Expert and BeCleverWithYourCash have both covered the JustGiving ~17% suggested tip prompt at length, and UK charities consistently report that aggressive tip prompts damage donor trust and reduce conversion rates. Effective take-rate on this model depends entirely on opt-in behaviour, which varies widely.

4. Hardware plus per-transaction (for in-person giving). GoodBox sells dedicated contactless donation devices for in-person giving at churches, museums, and events. SumUp and Zettle offer card readers popular at charity shops, fetes, and door collections. Each combines a hardware cost with a per-transaction fee. This is covered in entry 7 below.

The cleanest way to compare options is to ask one question: what does the charity actually keep from a £100 donation, before any donor opt-in?

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Free vs. low-cost vs. donor-pays: side-by-side

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The real cost of "discounted" at different fundraising volumes

Per-donation percentages feel small in isolation. Multiplied across a year of donations, they are not.

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Estimates assume an average £100 gift and no donor-covered-fee opt-in. Actual amounts vary with gift size and opt-in rate, but the order of magnitude holds: on every other platform, charities will receive £97 or less per £100 given.

How Zeffy can be truly £0. Zeffy is funded by optional voluntary contributions donors can add at checkout. These are never required and never charged to your charity. Zeffy runs on Stripe under the hood and covers every Stripe fee. See how the optional voluntary contribution model works.

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How to find the best free payment processor for your charity

Finding a cost-effective solution matters because every pound in fees is a pound that does not reach your cause. Beyond fees, the right platform also depends on your fundraising mix (online, in-person, recurring, events), your team's capacity, and the features you will actually use.

Here are the questions worth asking any processor before you commit.

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Top features of charity payment processors to ask about

Cost and fees

• Are there transaction or platform fees? If so, are charity discounts available, or does the platform absorb them entirely?

• Are there monthly, setup, or hidden fees?

• Can voluntary donor contributions or donor-covered-fee toggles offset processing costs?

• Is the pricing structure published transparently, or only revealed after a sales call?

Donation options

• What payment methods are accepted (credit, debit, Direct Debit via GoCardless, digital wallets, Apple Pay, Google Pay)?

• How are international payments handled?

• Is the mobile donor experience optimised?

Donor experience and donation flow

• Can donation forms be customised to match your charity's branding?

• Can donors easily set up and manage recurring donations?

• Are Gift Aid declarations captured automatically and donor acknowledgements sent?

Fundraising tools beyond a single donation form

• Does the platform support event ticketing, peer-to-peer, auctions, raffles, or memberships?

• Can you collect in-person donations with tap-to-pay or a card reader?

Security and compliance

• Is the platform PCI compliant?

• What fraud and chargeback protection is built in?

UK GDPR and ICO compliance

• Does the platform have a UK data-controller relationship or an explicit UK GDPR compliance statement?

• Does it retain Gift Aid declaration records for the full six-year HMRC retention window?

• Does it follow the Fundraising Regulator Code of Fundraising Practice (new version effective 1 November 2025, including Section 9 on online platforms)?

Reporting and supporter management

• Is real-time donation tracking included?

• Are custom reports and exports available?

• Is there a built-in supporter database, or do you need to add a separate CRM?

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The 7 best free (and free-ish) payment processors for UK charities in 2026

1. Zeffy: the only truly free UK charity payment stack

Capterra: 4.8 | G2: 4.9

Zeffy is the only platform on this list that covers the underlying Stripe processing too. Other "free for charities" tools waive their own platform fee but still pass through 1.5% to 2.9% per donation. Zeffy absorbs both layers, so when a donor gives £100, your charity receives £100.

Beyond payment processing, Zeffy includes everything a small-to-mid UK charity is likely to need in one place:

• Customisable branded donation forms with Gift Aid declaration capture and HMRC-compliant donor records

• Tap to Pay for in-person donations and event payments from your phone, no card reader required

• Event ticketing, memberships, and recurring donations

• Raffle and lottery tooling aligned with small-society-lottery rules (£20,000 single-draw cap awareness, 20%-to-cause floor)

• An online shop for merchandise revenue

• UK GDPR handling and alignment with the Fundraising Regulator Code

Zeffy is available to UK registered charities and not-for-profit organisations. Globally, more than 100,000 charities have raised over £2bn through Zeffy.

Pricing: 100% free. No platform fees. No processing fees. No setup or subscription costs.

"We are a small not-for-profit start-up organisation that was having problems raising money online. We were limited in how donors could send us money and the processing fees were costly. We found Zeffy easy to use and extremely donor-friendly. Zeffy delivers a receipt to donors immediately." Ronald W., G2

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2. GoCardless: the UK Direct Debit standard for regular giving

Direct Debit accounts for approximately 31% of all UK charity donations and GoCardless is the payment rail behind nearly every UK fundraising platform that supports it, including Enthuse, Donorfy, Beacon, and ChurchSuite.

Even if you pick another donation platform on top, understanding GoCardless as the underlying infrastructure for UK regular giving is worthwhile. Direct Debit is the gold standard for monthly gifts in the UK: it reduces failed payments, supports higher average recurring amounts, and donors are familiar with authorising it through their bank.

UK fees: 1% + 20p per Direct Debit transaction, capped at £2 per payment. A 25% charity discount is available for registered charities. GoCardless also offers an Instant Bank Pay product for one-off Open Banking donations.

Honest take: GoCardless is infrastructure, not a donation platform. It handles the Direct Debit mechanics; you still need a donation form and a CRM on top. It is best understood as the regular-giving rail that platforms sit on, rather than a standalone solution for a small charity building its first donate page.

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3. Stripe UK: best for custom integrations

Capterra: 4.6 | G2: 4.3

Stripe is the payment rail behind Ticket Tailor, TicketSource, Enthuse, and Zeffy itself. On its own, it provides raw payment rails with no fundraising features included.

UK pricing: 1.5% + 20p for UK cards; 2.5% + 20p for EEA cards; 3.25% + 20p for international cards. Stripe handles 135+ currencies, which makes it useful for charities running international appeals.

Honest take: Discounted, not free. Stripe is the right choice for a technically confident team that wants to build a custom donation experience, integrate with a bespoke CRM, or process payments across multiple currencies. It has no donation forms, no Gift Aid claim submission, no donor acknowledgements, and no fundraising features out of the box. On a £100 donation at UK card rates, your charity nets roughly £98.30.

"I like that Stripe integrates with many, many platforms. Whether it is databases or crowdfunding sites, Stripe is accepted in a lot of places, which has been so helpful for us. I also think it has really accurate reporting and is heavily detail-oriented." Rachel D., G2

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4. PayPal UK: best for donor familiarity

Capterra: 4.7 | G2: 4.4

PayPal is a trusted checkout brand that nearly every UK donor has used, which reduces friction on the donate page. Registered UK charities can access discounted rates through the PayPal Giving Fund.

Honest take: Discounted, not free. PayPal is a payment button, not a fundraising platform. It has no Gift Aid automation, no branded donation acknowledgements, no native event ticketing, and no supporter management. The PayPal Giving Fund in the UK routes donations via a separate UK-registered charity, which disburses on its own schedule. This can create cashflow friction for smaller charities that need funds promptly. See the live Zeffy vs PayPal comparison for current UK fees and a side-by-side breakdown.

"The ease of integrating with any website, no matter what platform it is designed on. It is a secure platform, it does not generate errors on the user's side or on the programmer's or administrator's side." Ivan B., G2

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5. Wonderful.org: best for Open Banking / Pay by Bank at 0%

Wonderful.org is a UK-based platform that uses Open Banking (account-to-account / Pay by Bank transfers) to achieve a genuinely 0% platform fee, 0% Gift Aid processing fee, and 0% card fee on Pay by Bank transactions.

Honest take: Technically the best-value UK option for digital-first donations, and regularly cited as such by Money Saving Expert. The trade-off is reach and conversion behaviour. Wonderful.org has a smaller donor-facing profile than JustGiving, so cold donors arriving from a search or social campaign may be less familiar with the brand. The Open Banking authentication journey (which requires donors to approve the payment through their banking app) converts well with younger, banked donors comfortable with that flow and less well with older donors unfamiliar with it. Worth running alongside a better-known platform rather than as a sole donation page.

UK fees: 0% on Pay by Bank donations. Card transactions carry processing fees only.

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6. JustGiving: the UK household name (check the full fee picture)

JustGiving is the default UK donation platform for most supporters. Brand recognition is its strongest asset: a JustGiving URL on a fundraising appeal still converts cold donors who recognise it and trust it.

Honest take: The headline 0% platform fee masks a more complex cost picture. JustGiving charges approximately 1.9% + 20p card processing and a 5% Gift Aid processing fee. Its default suggested tip prompt of around 17% has been the most-criticised pricing pattern in UK fundraising press, with coverage from Money Saving Expert and BeCleverWithYourCash documenting that many donors believe the platform fee has been added without their knowledge. This conversion drag is well documented among small UK charities. JustGiving has been owned by Blackbaud since 2017.

UK fees: 0% platform fee headline; 1.9% + 20p card processing; 5% on Gift Aid value claimed; default ~17% suggested voluntary contribution prompt.

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7. SumUp / Zettle: best for card readers at fetes and door collections

Capterra: 4.7 | G2: 4.6

Cash is dying at UK community events. A village hall or PTA running a summer fete increasingly needs a card reader at every stall, not just the entrance. SumUp and Zettle dominate the UK fete and charity-shop point-of-sale market: both offer low-cost hardware (card readers from around £19 to £29), a familiar tap-and-pay experience for donors, and straightforward daily payouts.

GoodBox offers a dedicated contactless donation device designed specifically for charities, popular at churches, museums, and visitor attractions where a fixed-installation tap-to-donate point is needed. See the live Zeffy vs GoodBox comparison for current fees.

Honest take: SumUp and Zettle apply standard commercial rates (SumUp: 1.69% per transaction; Zettle: 1.75% per transaction on most UK cards). There are no charity discounts. They do not offer Gift Aid handling, donor records, or integration with a fundraising CRM. They are the right choice purely for in-person card acceptance at an event where you need reliable hardware.

For event tap-to-pay without the per-transaction cut, Zeffy also offers Tap to Pay for in-person donations and event payments: free, with no card reader to buy and no per-transaction fee.

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Handle Gift Aid properly, or leave 25p per £1 on the table

Gift Aid is the single most valuable tax mechanism available to UK charities and the main reason a UK charity's payment processor choice matters beyond the fee rate alone.

When a UK taxpayer makes a Gift Aid eligible donation, your charity can reclaim 25p from HMRC for every £1 donated. A £100 donation becomes £125 for your cause at no extra cost to the donor. Over a fundraising year, Gift Aid can add tens of thousands of pounds to a mid-sized charity's income.

Official HMRC guidance on Gift Aid sets out the full requirements.

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What Gift Aid requires

To make a valid Gift Aid claim, your charity needs:

• A signed (paper, digital, or oral) Gift Aid declaration from the donor: their full name, home address, the charity's name, and confirmation that they are a UK taxpayer and want the donation to be treated as Gift Aid.

• HMRC recognition for your charity (a separate step from registration with the Charity Commission for England and Wales, OSCR in Scotland, or CCNI in Northern Ireland). HMRC issues a Charities Reference Number when recognition is granted.

• Records of all declarations retained for at least six years after the last donation they cover.

• Claims submitted via HMRC Charities Online or a ChR1 paper form.

Higher-rate and additional-rate taxpayers can also claim the difference between basic rate and their own rate through Self Assessment.

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What Gift Aid does NOT cover

Gift Aid does not apply to:

• Raffle or lottery ticket purchases (the donor receives a chance to win, which constitutes goods or services).

• Event tickets sold at their fair market value.

• Auction lots bid on at fair value.

• Donations from companies (different rules apply).

• Donors who have not paid enough UK Income Tax or Capital Gains Tax in the year to cover the claim.

The Gift Aid Small Donations Scheme (GASDS) allows charities to claim a 25% top-up on small cash and contactless donations of £30 or less, without a written declaration, up to £8,000 in eligible small donations per tax year. This is particularly useful for fetes, collection buckets, and contactless giving at events.

For technical detail on charity tax, the Charity Tax Group is the independent reference used by charity finance professionals.

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Which platforms handle Gift Aid for you

Zeffy captures Gift Aid declarations at the point of donation, stores records to HMRC's six-year retention standard, and provides HMRC-compliant donor records. Most payment-only tools (Stripe, PayPal, GoCardless, SumUp, Zettle) provide no Gift Aid handling: your charity must collect declarations separately and submit claims via Charities Online yourself.

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Choosing the best payment processor for your charity

Every processor on this list works. The right one depends on three questions: how much you raise, how you raise it, and how much fee leakage you are willing to accept.

If you raise primarily online and want every pound to reach the cause, the tip-funded model is the only one that achieves a true £0 take-rate, and Zeffy is the only platform open to every registered UK charity without an application review. If you raise primarily through regular giving and Direct Debit, GoCardless (whether standalone or via an integrated platform) is the UK rail most fundraising professionals rely on. If you need raw payment rails for a custom build, Stripe UK at 1.5% + 20p is the cleanest option.

For most small to mid-sized UK charities asking "is there a cheaper option?" the answer is not cheaper. It is free.

The stacked-tool problem is real. A charity running a fete ticket sale (Ticket Tailor), an autumn appeal (JustGiving), a Christmas raffle (Crowdfunder), and a sponsored 5K (another platform) is paying four separate sets of fees and managing four separate supporter records. Zeffy consolidates that stack: fundraising, ticketing, memberships, raffles, auctions, and supporter management in one free platform, with Gift Aid handling built in.

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Frequently asked questions

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