If your nonprofit has misplaced your 501(c) determination letter for the IRS, you can get a copy of an affirmation letter to have “proof” of your tax-exempt status. Call the IRS Customer Service for nonprofit organizations at 1-877-829-5500 and give them your nonprofit’s name and Employer Identification Number (EIN).

How do I verify a 501c3?

In the United States, this status is called 501(c)(3) after the relevant part of the Internal Revenue Code. You can search for non-profit status by using the IRS Select Check database or by asking the non-profit to show you proof of their status.

When does a 501 ( c ) 3 tax return have to be available?

A section 501(c)(3) organization must make available for public inspection and copying any Form 990-T, Exempt Organization Business Income Tax Return, filed after August 17, 2006. Returns must be available for a three-year period beginning with the due date of the return (including any extension of time for filing).

Where can I find a list of 501c3 non-profit organizations?

501c3Lookup.org provides an up-to-date and completely searchable list of the United States Internal Revenue Service (IRS) 501c3 Non-profit organizations. Learn more about nonprofit and charitable organizations directly from the official US IRS Charities and Non-profits page.

Do you know the Ein for a 501c3 organization?

If you know the EIN (Employer Identification Number, also known as the IRS Federal Tax Identification Number, or Tax ID), partial name, or the city the 501c3 organization is based out of, you can enter it in the appropriate form fields. You can also choose from the list of Activity Codes or NTEE Codes a given 501c3 is listed under.

Where can I find information about tax exempt organizations?

A collection of links to State government web sites with useful information for exempt organizations. Learn more about the benefits, limitations and expectations of tax-exempt organizations by attending 10 interactive courses at the online Small to Mid-Size Tax Exempt Organization Workshop.