Your organization didn't file a Form 990-PF. What you need to do File a Form 990-PF Complete the response page Mail it to the address on the notice Frequently asked questions What should I do if I have all ready filed Form 990-PF? If you filed within the last four weeks using the same name and Employer ID number (EIN) on your notice, you don't have to do anything. Our system may not have processed your return at the time we mailed the notice. If you filed more than four weeks ago or used a different name or EIN, complete the Response form starting on Page 3, and mail it to us with a signed and dated copy of the return. What should I do if I don't think I have to file a Form 990-PF? Complete the response form starting on Page 3 of the notice and mail it to us. Reference Tools Publication 1, Your Rights as a Taxpayer PDF Form 990, Return of Organization Exempt From Income Tax PDF Form 990-PF, Return of Private Foundation or Section 4947(a)(1) Nonexempt Charitable Trust Treated as a Private Foundation PDF Form 990-N, Electronic Notice (e-Postcard) for Tax-Exempt Organizations Not Required To File Form 990 or 990-EZ (available electronically only) Full list of tax forms and instructions Need Help? You can authorize someone to contact the IRS on your behalf. See if you qualify for help from a Low Income Taxpayer Clinic. If you can’t find what you need online, call the IRS number at the top of your notice or letter.