NTN and STRN serve different purposes
STRN means Sales Tax Registration Number for FBR sales tax. Having an NTN alone does not authorise charging sales tax. If you ask for a “TRN”, we first clarify whether you need income tax registration, federal STRN or provincial service-tax registration.
Federal sales tax: common preparation items
- Iris access and the correct business/registration classification.
- Business bank certificate, business activity and branch particulars.
- GPS-tagged premises photographs and utility consumer/meter evidence.
- For manufacturers, machinery and industrial meter photographs.
- Relevant member/director/principal-officer identity for an AOP or company.
Remember biometric verification
FBR’s published Iris procedure requires NADRA e-Sahulat biometric verification within 30 days after registration. Track this step and retain evidence. Additional verification may apply to manufacturers.
What about services?
Assess the service, location and current rules. Relevant authorities include PRA in Punjab, SRB in Sindh, KPRA in Khyber Pakhtunkhwa and BRA in Balochistan; FBR administers ICT service-tax requirements. Cross-province or mixed supplies need a specific review.
Official reading
- FBR sales tax registration procedure ↗
- Punjab Revenue Authority guides ↗
- Sindh Revenue Board user manuals ↗
- Khyber Pakhtunkhwa Revenue Authority ↗
- Balochistan Revenue Authority ↗
Reviewed 13 October 2026. General preparation guidance. Current law, portal requirements and your circumstances determine the final documents, fees and obligations.