While organizations without 501c3 status can't apply for grants, there are still ways to legally accept donations, fund their business, and serve the community. When is a nonprofit donation tax receipt required?The key to earning a sales tax exemption is being designated a charitable, taxexempt 501(c)3 nonprofit organization under the Internal Revenue Code. A tax exempt organization may need a letter to confirm its taxexempt status or to reflect a change in its name or address. Exemption applications must be filed with your local assessor's office. See our Municipal Profiles for your local assessor's mailing address. Determination of Exempt Status. Include the nonprofit's EIN so the the donor can to check the charity's tax-exempt status with the IRS. However, without a 501(c)3 status, your donors will not be able to receive a tax deduction for their donations. Samaritan's Purse is a 501(c)(3) tax-exempt charity.