Gift Aid is a UK tax relief that lets eligible charities and Community Amateur Sports Clubs claim an extra 25p for every £1 donated by an eligible UK taxpayer, subject to HMRC rules.

Does Add25 replace a charity CRM?

No. Add25 focuses on Gift Aid and is designed to work alongside existing fundraising, payment and supporter systems.

Connected Gift Aid technology

Turn every eligible £1 into £1.25.

Add25 makes Gift Aid simpler for donors, charities and the platforms that power giving—so more eligible donations become more impact, with less admin.

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✓ Donor-first experience✓ Charity-ready records✓ Built to integrate

Gift Aid opportunity

£12,840.50

across eligible donations

Claim ready

DeclarationsCaptured and organised

Donation matchingRecords connected

+ Declaration connected

CharitiesCapture more eligible Gift Aid DonorsMake your giving go further Giving platformsAdd Gift Aid to your product Payments & terminalsConnect giving at checkout

One connected journey

Gift Aid, from donation to claim-ready data.

Add25 helps each part of the process work together, without asking organisations to replace the tools they already rely on.

Capture clearly

Give eligible donors a simple way to make a valid declaration at the right moment.

Connect securely

Bring declaration, donor and donation data together across channels and systems.

Prepare confidently

Review records, resolve exceptions and prepare cleaner data for the charity’s HMRC claim process.

The difference 25% makes

Small uplift. Meaningful impact.

For an eligible Gift Aid donation, a charity can normally claim an extra 25p for every £1 given. Try the calculator to see what that can mean.

No extra cost to the donor
A clearer, easier donor experience
More value from eligible donations

Donation amount GBP

Potential Gift Aid£25.00

Potential charity value£125.00

Illustration only. Gift Aid eligibility and HMRC rules apply.

Built around the giving ecosystem

One platform. Four clear benefits.

For donors

Make and manage declarations with a clear view of how eligible giving can go further.

Explore the donor experience →

For charities

Reduce manual work, organise records and identify more of the Gift Aid you may be able to claim.

See how charities benefit →

For platforms

Offer a connected Gift Aid journey within fundraising, donation and supporter products.

Build with Add25 →

For payments

Help turn eligible card, digital and in-person donations into richer Gift Aid-ready records.

Discuss a payment integration →

Donation eventOnline, mobile, platform or terminal

Donor & declarationA clear, connected Gift Aid journey

Structured recordPrepared for review and claim workflows

Integration partners

Add Gift Aid without rebuilding Gift Aid.

Fundraising products, payment processors and terminal providers can work with Add25 to create a more complete donation journey. We will shape the right integration around your channels, data and customer experience.

Explore integrations →

Designed for trust

Clear records. Clear responsibilities.

Add25 supports the process. Charities remain responsible for their declarations, records and accurate claims.

Purpose-built workflows

Focused on the practical steps that sit between an eligible donation and claim preparation.

Audit-friendly records

Keep donor, declaration and donation information organised for review and record keeping.

Works with your stack

Connect Add25 to the tools and channels your organisation already uses.

Plain-English journeys

Make it easier for teams and donors to understand what Gift Aid means and what happens next.

Frequently asked

Gift Aid, made clearer.

What is Gift Aid?

Gift Aid is a UK tax relief. Subject to the rules, eligible charities and Community Amateur Sports Clubs can claim an extra 25p for every £1 donated by an eligible UK taxpayer.

Who can use Add25?

Add25 is being designed for charities and donors, as well as fundraising platforms, payment processors and terminal providers that want to connect Gift Aid to their donation journeys.

Does Add25 replace our CRM or fundraising platform?

No. Add25 focuses on Gift Aid and is designed to sit alongside the systems you already use. Integration options can be shaped around your existing workflow.

Does a donor need a declaration?

A charity must hold a valid Gift Aid declaration for the donations it claims. The declaration must contain the required information and cover the relevant donations.

Does Add25 guarantee that HMRC will accept a claim?

No software can remove the charity’s responsibility to make accurate claims and keep the required records. Add25 helps make that process clearer and easier to manage.

Let’s make more eligible donations go further.

Whether you are a charity, fundraising platform, payment processor or terminal provider, tell us where Gift Aid fits into your journey.

hello@add25.co.uk →