Cullinane Law BlogHelp for Nonprofits, Foundations, Associations and Social EnterprisesMost Recent PostsHow to Start a Nonprofit Benefits of a Family Foundation10/13/2025. Article originally published 12/03/2023 and updated regularly. A family foundation is a type of 501(c)(3) tax-exempt nonprofit organization that... [Read more] Nonprofit Fundraising and Charitable Giving 5 Items to include in donor acknowledgment letters. What to include for tax purposes.What is a donor acknowledgment letter? A donor acknowledgment letter is more than just a thank you letter. Nonprofit 501(c)(3)... [Read more] How to Start a Nonprofit Public Charity vs. Private Foundation: What’s the difference and what’s best for your organization?The terms of nonprofit entities can be so confusing ... public charity ... private foundation ... private nonoperating foundations …... [Read more] How to Start a Nonprofit How to Start a Business Association with 501(c)(6) StatusSet-up a business association today. Our law firm offer helps business leagues, trade groups, chambers of commerce, and real estate... [Read more] Tax Filings for Nonprofits What is Group Exemption?What is a group exemption? The IRS will allow organizations that are affiliated with a central organization to apply for... [Read more] How to Start a Nonprofit How to Start a New Nonprofit Organization: Step-by-Step Guide to 501(c)(3) StartupAll the steps to start a new nonprofit organization. How to set-up a non-profit with IRS 501c3 status (including Form... [Read more] Tax Filings for Nonprofits What Does It Mean for a Nonprofit to Lose 501(c) Tax-Exempt Status?This article about revocation of tax-exempt status was originally published on 06/20/2011 and has been updated each year. Millions of... [Read more] Tax Filings for Nonprofits Nonprofit Law Basics: What are Nonprofit Tax Returns? What is a 990?Most nonprofit organizations are required to file annual reporting returns with the IRS. Even though tax-exempt nonprofit organizations do not... [Read more] Nonprofit Board of Directors What are the Duties of Nonprofit Directors?What do nonprofit directors do? What are their legal obligations and duties? When can directors be liable? What should directors... [Read more] Tax Filings for Nonprofits What is UBIT (Unrelated Business Income Tax)?A 501(c)(3) nonprofit is not taxed on revenue that comes from an activity that is substantially related to the organization’s... [Read more] Page1 Page2 Page3 Page4 Page5 Page6Browse by TopicNonprofit LawHow to Start a NonprofitNonprofit Fundraising and Charitable GivingTax Filings for NonprofitsSocial EnterprisesNonprofit Board of DirectorsNonprofit LawHow to Start a NonprofitNonprofit Fundraising and Charitable GivingTax Filings for NonprofitsSocial EnterprisesNonprofit Board of Directors Search Search Get Started Today