Enter the entity name and identifying number from the tax return where the noncash charitable contribution was originally reported, if different from above. You'll also need to submit: • A copy of the IRS Determination Letter granting tax-exempt status.This step-by-step guide will help you fill out the donation tax receipt and get things in order for tax season. The 1099G is neither a bill nor a refund. Instead, the amount reported on form 1099-G may be considered income for federal tax purposes. Where can I find the Ohio University Foundation tax exempt letter? Answer. The Ohio State University Foundation's Tax ID Number is: 31-1145986. Completing the federal application for tax exemption is significantly easier with the assistance and support of a professional. Generalizations or failure to answer questions in the Form 1023 application will prevent us from recognizing you as tax exempt. Complete this form and attach your check or money order donation being made in honor or memory of a loved one.