What Claude (Anthropic) with web search answered for payment processing (nonprofits) on 2026-10-08

Claude (Anthropic) with web search claude-opus-5 asked 2026-10-08

Coverage: Claude (Anthropic) with web search. Other engines not included.

The question asked, verbatim: best payment processing for nonprofits

Brands named, in the order the engine gave

1. Stripe mentioned
   Stripe - the default if you have any technical help.
2. ACH compared
   Verified 501(c)(3)s get a discounted rate of 2.2% + 30¢ instead of the standard 2.9% + 30¢, and ACH/bank debits are much cheaper than cards (worth pushing for large gifts).
3. Givebutter mentioned
   (Stripe nonprofit rates via Givebutter (https://givebutter.com/blog/stripe-for-nonprofits))
4. Donorbox compared
   (Givebutter vs Donorbox fee comparison (https://donorbox.org/givebutter-vs-donorbox))
5. Zeffy mentioned
   Zeffy - if your budget is genuinely zero.
6. Truly $0 mentioned
   Truly $0 platform and $0 processing;
7. PayPal mentioned
   Platform fee 1.75-3.95% on top of Stripe/PayPal processing (2.2% + 30¢ at the nonprofit rate).
8. PayPal Giving Fund mentioned
   Don't make it your only rail: PayPal Giving Fund in particular holds the donor relationship and data, and there's no ACH or membership billing.
9. Square mentioned
   Square - only if in-person giving is a big share.

Sources the engine cited

The answer, as recorded

Here's how I'd rank them, assuming a US 501(c)(3): **1. Stripe - the default if you have any technical help.** Verified 501(c)(3)s get a discounted rate of **2.2% + 30¢** instead of the standard 2.9% + 30¢, and ACH/bank debits are much cheaper than cards (worth pushing for large gifts). The catch: Stripe is raw infrastructure - no donation forms, no donor records, no receipting. Pair it with a front end or a CRM. ([Stripe nonprofit rates via Givebutter](https://givebutter.com/blog/stripe-for-nonprofits)) **2. Givebutter - best all-in-one for small and mid-size orgs.** Runs on Stripe, bundles donation pages, events, peer-to-peer, text-to-give, and a light CRM. Platform fees can go to **$0** when you turn on optional donor tips, with processing around 1.9-2.9% + 30¢. The real cost is that donors see a tip prompt - most cover it, but some find it off-putting. ([Givebutter vs Donorbox fee comparison](https://donorbox.org/givebutter-vs-donorbox)) **3. Zeffy - if your budget is genuinely zero.** Truly $0 platform *and* $0 processing; the company lives on donor tips, which average 15-17% and which ~80% of donors pay. ~50,000 nonprofits use it. Trade-offs are real: thinner feature set, limited integrations and design flexibility, and reviewers note the tip opt-out is confusing for donors. Great for a small org running simple campaigns; limiting if you need a real CRM or complex events. ([Zeffy review](https://dupple.com/reviews/zeffy)) **4. Donorbox - strongest donation forms + recurring giving.** Platform fee 1.75-3.95% on top of Stripe/PayPal processing (2.2% + 30¢ at the nonprofit rate). Pricier than Givebutter, but the recurring-donation and form-building experience is more polished, and it doesn't lean as hard on tipping. ([Donorbox pricing comparison](https://donorbox.org/givebutter-vs-donorbox)) **5. PayPal - add it as a second option, not your primary.** Nonprofit rate is about **1.99% + 49¢**, so it's the cheapest per-transaction option on larger gifts, and a meaningful slice of donors simply trust the PayPal button. Don't make it your only rail: PayPal Giving Fund in particular holds the donor relationship and data, and there's no ACH or membership billing. ([PayPal alternatives for nonprofits](https://givebutter.com/blog/paypal-alternatives-for-nonprofits)) **6. Square - only if in-person giving is a big share.** Galas, festivals, donation kiosks, chip readers. Fine online, but not where it wins. ([Square alternatives for nonprofits](https://goharness.com/blog-posts/square-alternatives-for-nonprofits)) Two notes. If you're processing roughly **$1M+/year**, stop shopping flat rates and get an interchange-plus quote from a merchant processor - flat-rate pricing stops being competitive at that volume. And whatever you pick, enable **ACH and bank transfers** for major and recurring gifts; on a $5,000 gift the card fee is ~$110, while ACH is typically capped at a few dollars. That single change usually saves more than switching platforms does. Sources: - https://givebutter.com/blog/stripe-for-nonprofits - https://donorbox.org/givebutter-vs-donorbox - https://dupple.com/reviews/zeffy - https://givebutter.com/blog/paypal-alternatives-for-nonprofits - https://goharness.com/blog-posts/square-alternatives-for-nonprofits

Near this answer

The same question, recorded on other dates: 2026-10-06, 2026-10-05, 2026-10-03, 2026-10-01, 2026-09-26, 2026-09-24, 2026-09-22, 2026-09-20, 2026-09-16, 2026-09-14, 2026-09-12.

payment processing, asked for other audiences: small businesses (asked 2026-10-08), freelancers (asked 2026-10-08).

Other categories with a recorded answer: accounting software, accounts payable automation, audit management software, bookkeeping services.

Markdown edition · JSON record · the question page, with every recording · Answer Watch · AEO Watch

Answer Watch records what one AI answer engine said on one date, nothing more. Each page names the engine and the model, carries the date the question was asked, and lists the brands that appeared in the answer in the order the engine gave them, with the sources it cited. It is a measurement, not a ranking, not a recommendation and not a claim about the world. Brands that did not appear in an answer are not named on any public page. Coverage: Claude (Anthropic) with web search. Other engines not included.