Your users get stuck on complex government forms and "Reference 101" errors. We provide a White-Glove API that handles the filing, the faxing, and the friction.
As a SaaS platform owner, you know the pain. You build a beautiful onboarding flow, only to send your users to the IRS website.
We combine modern API infrastructure with a dedicated team of filing experts to ensure 100% completion rates.
Connect via webhook in minutes. Send us the user details, we handle the rest. No complex SDKs needed.
When the IRS system fails (and it will), our team manually faxes documents and calls the IRS on your user's behalf.
All sensitive data like SSNs are encrypted at rest and in transit. We treat your user data with bank-grade security.
Three steps to zero abandonment.
Send payload to our secure endpoint.
We navigate the bureaucracy for you.
User gets EIN. You get a happy customer.
Join the SaaS platforms that trust NathEIN for their formation and filing infrastructure.
Zero Abandonment. Guaranteed.