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Sales Tax Registration (STRN): Who Needs It and How to Get It

Sales Tax & Returns September 3, 2026 2 min read
September 3, 2026 2 min read eInvoices Team
Sales Tax Registration (STRN): Who Needs It and How to Get It

Sales tax registration is the gateway to selling to the documented economy. Here is who needs it and how the process actually runs.

Who needs an STRN

  • Manufacturers, importers, wholesalers and retailers making taxable supplies, subject to the thresholds and categories in the law.
  • Businesses whose customers demand sales tax invoices, because registered buyers need them for input claims.
  • Anyone entering supply chains that operate purchase orders and withholding, where an unregistered supplier is simply not onboarded.

The registration process

Apply through IRIS with your NTN as the base. Expect to provide business particulars, premises evidence such as a utility reference or tenancy, bank account details, and photographs of the business as required. A biometric verification step at an e-Sahulat or designated facility confirms the applicant. Field verification of premises can follow for some categories.

After registration

  • Monthly sales tax returns become due, even for months with no activity.
  • Your invoices must meet sales tax invoice requirements, and integration obligations apply as notified for your class.
  • Your STRN becomes verifiable by anyone, which is exactly what makes you sellable to documented buyers.

A word of caution

Registration is a commitment, not a formality. Registering and then not filing builds automatic defaults month after month. Register when you are ready to run the monthly routine, and if that is now, we can complete the application, biometrics guidance and first returns for you as one engagement.

Frequently Asked Questions
Who is required to register for sales tax in Pakistan?
Manufacturers, importers, wholesalers and retailers making taxable supplies within the thresholds and categories of the law, and practically anyone whose buyers require sales tax invoices.
What documents does STRN registration need?
Business particulars on your NTN, premises evidence such as a utility reference or tenancy, bank details and required photographs, plus biometric verification of the applicant.
What happens after I get my STRN?
Monthly sales tax returns become due even for inactive months, invoices must meet sales tax requirements, and e-invoicing integration applies as notified for your class.