SFDIFYUXUSTAXXFintech / Tax
Tax and business, rebuilt digitally.
Tax preparation, business formation and registered agent service from an IRS-authorized e-file provider, with a secure client portal and a mobile app in nine languages, all built by SFDIFY.
Three surfaces, one record
Clients upload. Preparers review. Everything stays secure.
Preparer workspace
A queue, not an inbox.
Ready for review18
Waiting on client42
Filed this week127
Document pipeline
Forms read themselves.
OCR and classification sort uploads into the right return and flag missing pages before a preparer opens the file.
Business services
Tax filing, business formation, registered agent and consulting in the same portal.
Estimated refund
$2,340
Q3 estimated paymentSep 15
USTAXX app · iOS + Android
Tax filing in your language.
For individuals, 1099 workers, truck drivers and business owners. Useful before you ever become a client, and a full secure portal when you do.
USTAXX AITax questions in plain English, document checklists and notices explained, with escalation to a real preparer
DeadlinesLive countdowns for federal, state and business dates
LearnDaily tax quests, quizzes, streaks and badges
Secure portalEncrypted uploads, filing status, return PDFs behind Face ID, private chat with your preparer
LanguagesEnglish, Español, Русский, Türkçe, Türkmençe, Oʻzbekcha, Кыргызча, العربية, فارسی
Platform
Web portal, iPhone and Android app, staff admin
Stack
Next.js, Flutter, TypeScript
Credentials
IRS Authorized e-file provider, 50 states
Built by
SFDIFY, owned and operated
Work with SFDIFY
Digitizing a professional practice?
Portals, document pipelines and compliance-heavy workflows are where we do our most careful work.