No. If you provide goods or services at the fundraisers in return for the contributions, however (as charities do in an annual fundraising gala dinner), and if you do a whole lot of events throughout the year, the IRS could consider that you are regularly carrying on an unrelated trade or business and subject the income to unrelated business income tax. For more information see our Ready Reference Pages - Nonprofits Often Worry About UBIT, Charity Fundraisers Raise Many Legal Issues and Form 990 Reporting for Special Events Can Be Tricky – And Is Often Wrong.