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Get your nonprofit onboarded to Overflow so you can start accepting gifts.

Prerequisites

  • Your organization’s EIN and IRS determination letter
  • A primary admin email address
  • Bank account information for payouts

Create your organization

  1. Sign up at overflow.co with your admin email.
  2. Enter your nonprofit’s legal name, EIN, and address.
  3. Upload your IRS determination letter for verification.
  4. Wait for verification — most organizations are approved within one business day.

Invite your team

Once verified, invite the rest of your team from Settings → Team. You can assign roles when you invite them; see Roles & permissions for details.

Next steps

Continue to First-time configuration to configure funds, branding, and payouts.
Last modified on July 21, 2026