Whether you’re a business owner confirming your own registration or verifying a supplier before accepting a tax invoice, checking sales tax registration status in Pakistan takes just a couple of minutes through FBR’s official portal — no login required.
First: STRN, NTN, and ATL Are Three Different Things
These terms get mixed up constantly, so it’s worth being clear upfront:
| Term | What It Actually Confirms |
|---|---|
| NTN (National Tax Number) | Your general income tax identity with FBR |
| STRN (Sales Tax Registration Number) | Specific registration for charging and collecting sales tax on goods |
| ATL – Sales Tax (Active Taxpayer List) | Whether that sales tax registration is currently active, not just registered on paper |
An NTN is not a substitute for an STRN — a business can have a valid NTN for income tax purposes while having no sales tax registration at all. If you’re dealing with a supplier, checking their STRN specifically (not just their NTN) is what actually confirms they’re legally entitled to charge you sales tax on an invoice.
How to Check STRN Status Online
- Visit the official FBR IRIS portal: iris.fbr.gov.pk
- Go to Online Verification (sometimes listed as “Online Verification Detail” or “Verification Services”)
- Select NTN/STRN Inquiry or Taxpayer Profile Inquiry from the menu
- Choose “STRN” as your search parameter, or enter the CNIC/NTN if you’re checking an individual or don’t have the STRN directly
- Enter the number, complete the captcha, and click Verify/Search
The result will show the registered business name, registration status, and — where applicable — confirm whether the entity is actively registered for sales tax, not just holding an inactive or historical registration.
Checking the Sales Tax Active Taxpayer List Specifically
Separate from a one-off STRN lookup, FBR also maintains a dedicated Active Taxpayer List for Sales Tax, which you can check the same way — through IRIS’s Online Verification menu, selecting “Active Taxpayer List (Sales Tax)” specifically. This is the more reliable check if your main concern is simply confirming whether a registration is currently active, since a registration number existing doesn’t automatically mean it’s in good standing.
Checking by SMS (No Internet Needed)
For a quick income-tax-side active taxpayer check, you can text your 13-digit CNIC (no dashes) to 9966, and FBR will reply with your Active Taxpayer status within seconds. Note that this SMS method confirms general filer/ATL status rather than sales-tax-specific registration details — for a full STRN verification, the IRIS portal remains the more complete option.
Don’t Forget Provincial Sales Tax on Services
Here’s a detail that trips a lot of people up: FBR’s sales tax registration covers goods. Sales tax on services is handled separately by each province’s own revenue authority, with its own registration and verification system entirely apart from FBR’s:
| Province | Authority |
|---|---|
| Punjab | Punjab Revenue Authority (PRA) |
| Sindh | Sindh Revenue Board (SRB) |
| Khyber Pakhtunkhwa | Khyber Pakhtunkhwa Revenue Authority (KPRA) |
| Balochistan | Balochistan Revenue Authority (BRA) |
If you’re verifying a service provider — consultants, restaurants, telecom services, and similar — rather than a goods supplier, you’ll need to check with the relevant provincial authority’s own portal rather than FBR’s IRIS system, since these are entirely separate registration databases.
If Importing or Exporting: Check via Pakistan Single Window
If you’re verifying a registration in the context of import or export activity, businesses typically confirm sales tax status through their Pakistan Single Window (PSW) profile rather than going directly through FBR’s portal, since PSW integrates customs and trade-related verification alongside tax status.
What to Do If an STRN Isn’t Showing Up
- Double-check you’re searching the correct number — STRN and NTN are different numbers, even for the same business
- If a business claims to be registered but nothing appears, check the Registration tab within their IRIS profile (if you have access) or ask them to confirm via their own IRIS login
- Keep in mind a registration can exist but not be “active” — always check the Active Taxpayer List specifically if that distinction matters for your purposes
Why This Check Actually Matters
Verifying a supplier’s STRN before accepting a tax invoice isn’t just a formality — it protects you from input tax claims being rejected later if the supplier turns out not to be genuinely, actively registered. For a quick check that costs nothing and takes under two minutes, it’s a worthwhile habit to build into routine business transactions rather than only checking when something already looks off.
Final Thoughts
Checking sales tax registration status in Pakistan comes down to knowing which number you’re actually checking (STRN, not just NTN) and which authority is relevant (FBR for goods, your provincial revenue authority for services). For federal goods-based sales tax, iris.fbr.gov.pk remains the single official source — free, fast, and requiring no account login to look up a registration.
