Federal Inland Revenue Service

Unified Tax Audit &
Taxpayer Portal

A modern, digital-first platform that simplifies tax compliance, streamlines audit processes, and provides transparency for taxpayers and FIRS staff across Nigeria.

Taxpayer Portal FIRS Staff Portal
+
States Covered
M+
Registered Taxpayers
%
Digital Audits
hrs
Average Response

One System, Complete
Transparency

KnoTax centralizes intelligence, standardizes processes, and digitizes all taxpayer-auditor interactions across Nigeria.

Smart Tax Filing

Guided digital forms with built-in validations, auto-calculated liabilities, and machine-readable schedules.

Digital Audit Workspace

Structured information requests, timeline-based communication, and central document repository for each audit case.

Secure Messaging

Direct communication with FIRS officers through encrypted channels. No emails, no paper files.

Risk Intelligence

Advanced risk scoring engine identifies compliance issues early, focusing audits where they matter most.

Real-time Status

Track filing status, payment history, audit progress, and deadlines from a unified dashboard.

Compliance Assured

End-to-end audit trails, role-based access control, and enterprise-grade data encryption.

Access Points

Choose Your Portal

Whether you're a taxpayer managing compliance or FIRS staff conducting audits, KnoTax has you covered.

Taxpayer Portal

For companies and authorized tax consultants. Access your filing status, payment history, open audits, secure messaging, and document uploads.

  • View filing status by tax type
  • Track payment history
  • Respond to audit requests
  • Upload documents securely
Access Taxpayer Portal

FIRS Staff Portal

For audit officers, supervisors, enforcement teams, and dispute resolution officers. Manage cases, run recomputations, and track audit progress.

  • Risk-based case assignment
  • Automated recomputation engine
  • Digital audit workspaces
  • National visibility dashboards
Access Staff Portal
New Staff? Register here