Substack can't accept donations or send tax receipts. Zeffy gives you both, plus a donor CRM, for $0.
Zeffy is trusted by 100,000+ nonprofits
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Zeffy gives you donation forms, donor management, event ticketing, and email tools designed for fundraising, not paid subscriptions, with zero fees.
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Substack's built for paid content creators. Zeffy gives you donation forms, tax receipts, event ticketing, and a donor CRM — all free, all in one place.
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Substack tracks subscribers. Zeffy tracks donors — with giving history, segmentation, and thank-you emails that build trust, not just open rates.
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Substack's built for writers who want to publish. Zeffy's built for nonprofits who need to fundraise fast — set up donation forms, events, and emails in one afternoon.
Substack is built for paid content subscriptions, not charitable giving. You can't accept donations, issue tax receipts, or track donor history. Zeffy gives you donation forms, event ticketing, and a donor CRM designed for nonprofits.
No. Substack doesn't generate tax receipts or track charitable contributions. Zeffy automatically sends donation receipts that meet IRS and CRA requirements, so your donors get the documentation they need.
Substack takes 10% of subscription revenue plus payment processing fees. Zeffy charges zero platform fees. Donors have the option to leave a voluntary contribution to support our platform, so you keep 100% of every donation.
Substack manages subscribers for paid content, not donors. Zeffy gives you a donor CRM with giving history, segmentation, and email tools built for fundraising campaigns and donor stewardship.
Yes. Zeffy includes built-in email and newsletter tools designed for nonprofits. You can send targeted fundraising appeals, event updates, and thank-you messages directly from the same platform you use to collect donations and manage donors.
Zeffy is 100% free for nonprofits. There are no platform fees, no processing fees, and no monthly subscriptions. Donors can leave an optional tip to support Zeffy, but it's never required, and your organization keeps every dollar raised.
Yes. Zeffy offers full event ticketing and registration tools at no cost. You can create events, sell tickets, manage guest lists, and track attendance, all in one place. Substack doesn't support event management.
Substack is built for paid content subscriptions, where readers pay for access to newsletters. Zeffy is built for charitable donations, where supporters give to your mission and receive tax-deductible receipts. The two serve very different purposes.
Substack charges 10% of revenue plus processing fees and lacks nonprofit-specific features like tax receipts and donor tracking. Zeffy gives you email tools, a donor CRM, and donation forms with zero fees, so more of your budget goes to your mission.
Zeffy is the fundraising platform that cuts out the fees, clears up your tech mess, and puts your cause first — so your team, even if you're a small team wearing many hats or a one-person show, can focus on what really matters.
No platform fees. No processing fees. No catch. We know it sounds too good to be true, but it's not. Every penny goes straight to your mission, while competitors take 2-3% off every donation.

Stop bouncing between MailChimp, Eventbrite, and all those spreadsheets. Now you can handle donations, ticket sales, memberships, raffles, and all your donor info in one spot.
Built for teams like yours — whether you're volunteer-led or have limited staff. Set up donation forms, sell tickets, and launch campaigns without needing a tech wizard. It's super easy, and you'll be up and running in minutes.


From QR codes on flyers to Tap-to-Pay on a phone, Zeffy makes it easy to accept donations on the go. Mobile-optimized and offline-ready, so no donor slips through the cracks.
Centralize supporter relationships, automate thank-you messages, and preserve institutional knowledge when board members rotate out.

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As a startup nonprofit with only two members, and no funding (yet) we’d need something with low (or no) fees. Zeffy was a dream come true.
Masey, Loose Ends.
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