Filing made easy.
Every tax, every time.
ISTAX is a corporate tax advisory firm serving individuals and businesses across Pakistan with FBR, SRB, SECP, audit and bookkeeping expertise — delivered with accuracy, confidentiality and full compliance.
A full-service tax practice.
From routine federal filings to complex corporate matters, ISTAX provides a disciplined, partner-led service across the full spectrum of Pakistan's tax and regulatory framework.
FBR Tax Filing
Federal Board of Revenue income tax returns, NTN registration and refund processing for salaried individuals, AOPs and companies.
Sales Tax — SRB & FBR
Sindh Revenue Board and federal sales tax registration, monthly return filing, reconciliation and notice handling.
SECP Corporate Compliance
Company incorporation, annual returns, statutory filings and corporate secretarial services under the Companies Act.
Audit & Assurance
Statutory and internal audits delivered to professional standards, with clear, actionable management reporting.
Bookkeeping
Monthly and quarterly bookkeeping, ledger maintenance and financial statement preparation tailored to your sector.
Retainership Advisory
Ongoing tax and regulatory advisory under a fixed retainer — a single accountable partner for every filing cycle.
Accuracy. Confidentiality. Compliance.
Accuracy
Every return reconciled, reviewed and cross-checked before submission. Zero tolerance for avoidable errors.
Confidentiality
Client information is handled under strict professional secrecy with controlled-access record systems.
Compliance
Filings prepared to the letter of FBR, SRB and SECP regulations — protecting you from penalty exposure.
Industry coverage
A corporate profile
built on rigour.
ISTAX Consultants is a Karachi-based corporate tax practice serving individuals and businesses across Pakistan. The firm specialises in tax preparation, return filing, corporate compliance and retainership advisory — supported by a team trained in the evolving requirements of FBR, SRB and SECP.
Our practice is structured around collective expertise rather than individual personalities. Every engagement is reviewed by a senior partner, ensuring consistent quality regardless of file size or sector.
Start a confidential conversation.
Call, email, or visit our office. A partner will respond within one business day.
Main Shahrah-e-Faisal,
Karachi, Pakistan