Yes, it’s possible to request and receive your EIN confirmation letter (AKA the CP-575 letter) online using the IRS’s free online service. If you’re applying for the first time, you’ll have to answer several interview-style questions, and the system will guide you through the application process. You’ll have to provide your business name, official address, and your business’s responsible party (generally the business owner). If you’ve already received an EIN in the past and are simply looking to verify what it is, then you can request an EIN verification letter (a 147C letter) on the same website.