Exemption applications must be filed with your local assessor's office. See our Municipal Profiles for your local assessor's mailing address.A tax exempt organization may need a letter to confirm its taxexempt status or to reflect a change in its name or address. Determination of Exempt Status. You must complete the hard copy version of the application to apply for the certificate. 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. Follow the steps below to put a solid foundation in place before incorporating your organization and submitting your Form 1023. Know how to start a nonprofit in Alabama with this guide- naming your organization, recruiting your board, being tax-exempt, getting permits, and much more! Purchases may or may not be taxable. To complete quarterly returns and payments for this tax, use the Philadelphia Tax Center.