Tesseract-Tax Cloud™

by KnotTheory

Email or upload your documents. We read and analyze them. You approve — then e‑file yourself or through your CPA.

For individuals filing their own return and for CPA firms filing for clients. No preparer required.

You'll be securely redirected to sign in — continue with Google, Apple, Microsoft, GitHub, a passkey, or your email.

Private · IRS e‑file · Individuals & CPA firms

Tesseract-Tax Cloud™ is a trademark of KnotTheory.ai Inc.