ExpressExtension Support Find answers to your questions. Get Answers Support Form 8868 General I don’t have an EIN. Can I e-file a Tax extension Form 8868? Yes. If you do not have an EIN, you can use your SSN to e-file with the IRS. As an IRS-authorized e-file service provider, we will e-file your tax extension Form 8868 for you. Was this helpful? Yes No Need more help? Get in touch with our dedicated support team Contact Us (803) 514-5155 [email protected]