If you're looking for the tax requirements for your nonprofit, this page on the IRS website is a good place to start. Exemption, unrelated business income, employment taxes, filing requirements, etc.
Articles of Incorporation - NCM Sample
Bylaws - NCM Sample
How to Form a 501(c)(3) Nonprofit Corporation
Annual Filings
How to Obtain 501(c)(3) Tax-Exempt Status for Your Nonprofit
Nonprofit Payroll: What Records to Keep?
A Board Member's Guide to Nonprofit Insurance
State Liability Laws for Charitable Organizations and Volunteers
Stay Exempt
1) Tax-Exempt Status - Learn the ABCs of 501(c)(3) tax exemption and how to avoid
activities that jeopardize it.
2) Unrelated Business Income - Identify when income-producing activities generate
taxable income and how to report and pay taxes on it.
3) Employment Issues - Learn the differences between employees, independent contractors,
and volunteers, and the different tax treatment required for each.
4) Form 990 - Walk through the steps of filling out Form 990, and learn how
good recordkeeping is essential for accurate completion.
5) Required Disclosures - Learn your organization’s responsibilities to disclose
certain types of information to the general public.