Why donors drop off when they leave your website (and what to do about it)

Your donate button works. Someone clicked it. And then, somewhere between clicking and confirming, they vanished.

The average conversion rate sits at around 15%, and honestly, most fundraisers we speak to find even that figure a bit optimistic.

The uncomfortable question is why.

A lot of digital teams assume the fault lies with the donor. They got distracted, changed their mind, couldn’t find their card. And sometimes, fair enough, that’s true. But the data points to a much bigger factor, one that’s often hiding in plain sight: the moment a donor leaves your website to complete their gift, a meaningful percentage of them never come back. Not because they don’t want to give. Because the experience broke.

This post is about what’s actually going on in that gap between “I want to donate” and “gift completed,” and what you can do to close it.

The cost of the redirect

Most UK charity websites have a donate button that points somewhere else. JustGiving. Enthuse. PayPal Giving Fund. CAF Donate. The flow usually looks like this:

1. A donor arrives on your homepage, inspired by a campaign.
2. They click “Donate.”
3. They’re bounced to a different website, often with different branding, a different URL, different form fields, and sometimes even a different logo at the top.
4. They hesitate. Wait, is this still the right charity? Is this site secure? Why does it look different?
5. Some complete the donation. Many don’t.

Fundraise Up’s research found that donor conversion drops by at least 8% when the donation form is off-site compared to an on-site form. A separate study referenced in Nonprofits Source puts the number far higher, suggesting that custom-branded donation pages nested inside a charity’s own website raise up to six times more than off-site equivalents.

Six times. Not six per cent.

You can argue with the exact multiplier, and we’d encourage you to, because the original research is a few years old now. But the direction of travel isn’t really in doubt. Every redirect costs you donors, and the donors you lose most often are the ones who matter most: first-time givers who haven’t yet built trust with your organisation.

Why the redirect breaks trust

There are three things happening in the donor’s head when they land on a third-party page.

The brand signal disappears. Your donor trusts you, not a donation platform they’ve never heard of. Research from Nonprofit Tech for Good found that 68% of online donors say they most trust websites and email addresses on the .org domain. That trust can evaporate the moment the domain changes. Even a tiny flicker of “hang on, is this right?” is enough to break the moment.

The cognitive load goes up. Your donor has already made the emotional decision to give. Now they’re being asked to re-orient themselves on a new page, relearn the layout, and trust a new interface. Every extra step they have to think about is a chance to bail.

Mobile makes it worse. Mobile is now the majority of charity website traffic, and mobile users convert significantly less often than desktop users. Part of that is because redirects are especially jarring on a small screen. A page that loads slowly, or reflows during the redirect, or asks for a card number above a keyboard that’s covering the field, loses you money.

None of this is the donor’s fault. It’s the infrastructure’s fault.

What “on-site” actually means

When we say “keep the donation on your site,” we don’t just mean an iframe that looks a bit like your site but isn’t really. Donors notice. The address bar is a surprisingly honest thing.

A genuinely on-site donation experience means:

• The URL stays the same. If your charity lives at yourcharity.org, the donation page is yourcharity.org/donate, not some-platform.com/yourcharity.
• The branding stays the same. Same fonts, same colours, same header, same footer. No “powered by” badges hijacking the donor’s attention at the wrong moment.
• The form lives on your server. The data is yours. The analytics are yours. The donor journey is yours to improve.
• The payment is still handled by a regulated processor. Stripe, GoCardless, or similar. Card details never touch your server, so security and compliance stay watertight.

This is a solvable problem. You don’t have to accept an 80-something per cent drop-off rate as a cost of doing business.

What to measure before you change anything

Before you switch platforms or rebuild a donation flow, get honest data on where you’re actually losing people. A few things worth checking this week:

Where is the drop-off happening? Is it on your donate button click, on the third-party page load, on the payment step, or after? GA4 with proper event tracking will tell you. So will a tool like Astrolytics if you want plain-English answers without wading through GA4 yourself. Utilising tools like Microsoft Clarity or Hotjar temporarily is also a sure way to identify issues.

What’s your mobile versus desktop split? If mobile is converting at less than half the desktop rate, the form itself is probably the problem.

How long does it take for your donate button click to turn into a completed gift? If it’s more than 90 seconds, something is slowing people down, usually the redirect and the re-establishing of trust on the new page combined with a form that’s potentially too lengthy.

Anyone can tell you donation drop-off is bad. The useful question is where yours is happening, and why.

Fixing the leak

Three practical changes, in order of impact.

1. Bring the donation form onto your own site. This is the single biggest lever you have. Keep your donors on your domain, under your branding, from click to confirmation. The options range from embedded widgets (better than redirects) through to a full on-site donation platform. If you’re on WordPress, forGood is a free plugin we built specifically for this. Zero platform fees, Gift Aid built in, direct Stripe and GoCardless integration, and your donor never has to leave your site.
2. Fix mobile first. Your form needs to work on a five-year-old Android with one hand on the bus. Test it there. Watch someone actually try to complete a donation on their phone, and fix what you see.
3. Cut the form fields. Every field you don’t strictly need is a reason for someone to quit. Name, email, amount, card. That’s the minimum. Address is only needed for Gift Aid. Phone number isn’t needed at all. Be honest about what you actually use once the donation is in your CRM, and cut everything else.

The bigger picture

Donation drop-off isn’t really a design problem, or a tech problem. It’s a trust problem, and trust is built or broken in small moments. The URL bar. The logo at the top of the page. The speed of the next page load. The name on the confirmation email.

If you treat the donation flow as something that happens on your website rather than something that happens through your website, you’ll almost always raise more money. Not because donors suddenly become more generous, but because the people who already wanted to give finally get to finish the job.

The 87% who leave aren’t lost forever. Most of them were two or three clicks away from donating. They just hit a wall you put in their way without meaning to.

Take the wall down.

If you’d like to talk about on-site donations, Gift Aid, or just getting an honest read on your current donation flow, book a 30-minute call. No pitch, no obligation, and we’ll happily walk through your numbers with you.