Nonprofit Membership Management Software

Membership software for 501(c)(3) and 501(c)(6) nonprofits run by a small staff and a lot of volunteers. Dues, open-amount contributions, event registration, email and your website share one member database, and each volunteer gets a permission level that shows only what they manage. Unlimited members, no per-member fees.

For advocacy groups, community associations, foundations with members, and clubs.

i4a nonprofit membership management software dashboard showing retention rate, renewal rate, membership by month, and members by member type

Trusted by Leading Nonprofit Organizations

i4a AMS is built for membership-based nonprofits: 501(c)(3) and 501(c)(6) organizations, advocacy groups, community associations, foundations, and clubs.

Customer: La Leche League International Customer: National Association for Family Child Care Customer: Local Government Hispanic Network Customer: Mocha Moms, Inc. Customer: California Garden Clubs, Inc. Customer: Pediatric Chaplains Network Customer: Illinois Judges Foundation

Highly rated by association professionals

4.9 out of 5 on Capterra, GetApp and Software Advice

One Platform for Membership, Events, Email and More

i4a is membership software for nonprofits whose work depends on members: the people who pay dues, come to events and volunteer. Pricing starts at $99 a month for one staff user, with unlimited members and no per-member fees.

What Changes When Your Nonprofit Runs on i4a

One system a small team can run

Members, events, payments, email and your website in one place.

Unlimited members, one price

Your software cost stays the same as membership grows.

Renewals on autopilot

Automated renewal reminders and online dues payment.

Support that answers the phone

A U.S.-based team that has served nonprofits since 1996.

Membership Management Software Built for Nonprofits

Built from the ground up for membership organizations, not a generic CRM trying to adapt. We understand your unique needs because we've been serving membership-based nonprofits for decades, with the tools and flexibility to manage members, events and community engagement.

Membership Management

Unlimited members with automated renewals, member portal, and retention tracking

Event & Program Management

Unlimited events with registration, payment processing, and built-in reporting.

Payment Processing

Accept membership dues, event payments, and contributions through custom forms

Flat-Rate Pricing

Flat-rate pricing regardless of member count

Join or renew form in i4a nonprofit membership software with individual, family, senior, student and lifetime membership types, an optional any-amount contribution field, and credit card or eCheck payment

Membership types with their own dues, an any-amount contribution field, and card or eCheck payment.

Your Membership Software Should Fit Your Mission, Not Your Mission to the Software

Most membership platforms are built for businesses or generic CRM, not membership-based nonprofits. You're forced to pay per-contact fees, work with impersonal support, or compromise on features your organization needs.

Unlimited Members, No Per-Contact Fees

Your software cost stays the same as membership grows, so a bigger roster never forces a budget decision

Built for Membership, Not a Sales CRM

CRM platforms built for sales teams don't understand membership renewals, events, or dues. i4a was built for them

One System a Small Team Can Run

Members, events, payments, email and your website in one place, so a small staff isn't managing disconnected systems

Email campaign list in i4a nonprofit membership software showing a welcome email, gala registration, membership renewal reminder, advocacy update, workshop recap and newsletter

Renewal reminders, event invitations and newsletters, sent from the same member database.

What Association Leaders Say About i4a

Kerry Bamrick

“For me, this was about more than choosing software. It was about supporting the community we were building and knowing we had a team we could count on.”

Kerry Bamrick, MBAExecutive Director, Consortium for Advanced Practice Providers Read Kerry's story →

"As a two-person team managing a growing association, i4a has been a game-changer. The all-in-one platform eliminated the need to juggle multiple systems, and the unlimited member pricing means we can focus on growth instead of worrying about per-contact fees eating into our budget."

Amber Elaine C.
Amber Elaine C.
Higher Education Association
2-person team managing growing membership

"For professional societies needing complete web services, i4a is an outstanding, easy-to-use option. Our website development costs and implementation time have been profoundly impacted with streamlined business efficiencies."

Chris Barry
Chris Barry
Marketing Technology Manager, SPE
Reduced website development costs & implementation time
Reviewed October 2026
4.9 average customer rating
Capterra · GetApp · Software Advice · FeaturedCustomers

What Is i4a, and What Does It Cost a Nonprofit in 2026?

i4a is membership management software for nonprofits that run a membership program: 501(c)(3) charities and 501(c)(6) organizations, advocacy groups, community associations, and clubs and societies. It fits the way most of them work, with a small paid staff, volunteers and board members who need limited access, and a membership that can grow without raising the software bill, since the price follows the number of staff users rather than the number of members.

It handles membership types with their own dues and renewal cycles (individual, student, senior, lifetime or organizational), contribution forms with an open amount, event registration with member and non-member pricing, email, a member directory, a self-service member portal and your website, all in one system with one member database. Volunteers and board members can each have their own permission level.

2026 pricing: the Core plan is $99 a month for one staff user or $198 for two, on an annual contract billed monthly. With five staff users it is $2,935 a year (about $245 a month), billed annually. Pro starts at $224 a month. Every plan includes unlimited members and contacts, with no platform per-transaction fees. There is a one-time $1,500 setup fee.

In dollars: a nonprofit with one staff user pays $2,688 in its first year ($1,188 in subscription plus the $1,500 setup fee) and $1,188 a year after that, whether it has 300 members or 30,000.

View Pricing & Plans

How Do We Get Up and Running?

  1. Your development site

    A development site and a step-by-step onboarding checklist within one business day of signing.

  2. Setup with a specialist

    You import your member records with our Contact Import Wizard and build your pages in the drag-and-drop page builder, with a dedicated implementation specialist guiding you through payment setup and staff training.

  3. Go live

    Most nonprofits are live within 60 to 90 days, often sooner for smaller member lists.

30 Years of Answering the Phone

Unlike VC-backed platforms where you're routed through offshore call centers, you'll work directly with our U.S.-based team, experienced professionals who understand nonprofit operations, member engagement, and the unique challenges of serving mission-driven organizations and growing membership value. We've been serving nonprofits since 1996: 30 years of personal partnerships built on your success, not transactional relationships.

Rapid Response When It Matters

Most support requests answered same-day. We're here when you need us, especially during your events and renewal season.

30 Years of Stability

Serving nonprofits since 1996. No VC pressure to exit or pivot, just long-term commitment to your mission's success.

Secure Encryption
256-bit SSL encryption
Backups Every 4 Hours
99.9% uptime commitment
U.S.-Based Servers
Data sovereignty
Unlimited Members
No per-contact fees

Nonprofit Organization FAQs

Yes. Our platform includes integrated payment processing for membership dues, event registrations, and custom payment forms. You can create forms with open-amount payment fields (let users enter any amount), process credit cards and eCheck payments securely, and track all revenue in real-time dashboards.

We integrate with our payment gateway, 8am™ AffiniPay, for secure, PCI DSS Level 1 compliant payment processing. You can also set up different membership types with different dues rates, such as individual, student, senior, lifetime, or organizational memberships, each with its own renewal cycle and pricing.

Yes. Our registration software lets you create unlimited events with online registration and payment, perfect for galas, socials, workshops, and community gatherings. Set member and non-member pricing, collect payments via credit card or eCheck, and report on registrations. Users automatically receive confirmation emails.

Yes. Our directory builder lets you create searchable member directories with custom filters for location, interests, or any custom attributes you define. You can create member-only directories (login required) or public directories. This helps build engagement and strengthen connections within your organization.

Yes. Your public website can stay where it is while i4a handles membership, renewals, event registration, payments, the member directory and members-only content, on a members address such as members.yourassociation.org that your site links to. If your site runs on WordPress, i4a's free WordPress SSO plugin gives members one login across both sites. On Squarespace, Weebly, Wix and other site builders there is no equivalent plugin, so members log in on the i4a side. You can also move your whole site onto i4a's drag-and-drop page builder whenever you're ready.

We offer flat-rate pricing regardless of how many members you have. Whether your nonprofit has 1,000 members or 50,000+ members, you pay the same price. No per-contact fees as you grow, just straightforward pricing. Plans start at $99 per staff user per month on the Core plan, and every plan includes unlimited members.

This means you can focus on your mission and growing your community instead of worrying about software costs increasing every time you add new members. Visit our pricing page for nonprofits of all sizes.

Absolutely. Our platform is designed to be intuitive for nonprofit staff and volunteers. The website builder is drag-and-drop with no coding required, email campaigns can be created with templates, and dashboards show key metrics at a glance.

You can grant different permission levels to volunteers so they only see what they need to manage, protecting sensitive data while empowering your team.

Your member data is protected by enterprise-grade security infrastructure. Our network uses dual active/passive firewalls with automatic failover, database servers that are completely isolated from internet access, and encrypted passwords at rest. We don't store payment information in your database: all transactions are processed through PCI DSS Level 1 compliant payment gateways. See our security page for the full details.

Start with how your organization actually operates, not with feature lists. Write down the workflows you need handled (dues renewals, event registration, payment processing, member directories, email) and note who will use the system day to day. If volunteers or a small staff run your operations, ease of use matters as much as capability.

Then look closely at the pricing model: per-contact pricing means your software bill grows every time your membership does, while flat-rate pricing stays predictable as you grow. Finally, ask vendors about data migration support, security practices, and what implementation help is included.

The best test is a demo built around your real scenarios: bring your renewal process, your event calendar, and your reporting needs, and watch the software handle them. Our guide to questions to ask in a software demo can help you prepare, and our comparison of the leading nonprofit membership platforms shows how the options stack up.

Yes, free options exist, and for a small group with simple needs they can be a reasonable starting point. Most are funded another way: transaction fees or donor tips on every payment you process, or free tiers capped by member count and features.

Membership-driven organizations that manage renewals, events, and directories usually outgrow these tools, and the paid platforms they graduate to often charge per contact, so costs climb as membership grows. i4a takes a different approach: flat-rate pricing with unlimited members, so your software budget stays the same whether you have 1,000 members or 50,000.

You Build Community and Drive Member Engagement. Your Platform Should Make That Easier

As a membership organization leader, you focus on growing your community, strengthening member connections, and maximizing your budget. Our pricing is published: from $99 per staff user per month, unlimited members, no platform per-transaction fees.