Quick Answer

Look the supplier up on the Active Taxpayer List (Sales Tax) at e.fbr.gov.pk, using their NTN or CNIC. Then match the 13-digit STRN and the business title against the tax invoice. If the payment is large, send it through a business bank channel, because Section 73 asks for that. And keep dated proof of your check for six years.

Last Verified: October 2026 (Finance Act 2026 Compliance)

When you buy goods or services for a business in Pakistan, whether you can claim the input tax on that invoice depends on the supplier’s sales tax status. This guide covers how to verify supplier sales tax registration in Pakistan, what the FBR results actually mean, and which records protect your claim. It’s written for finance managers, procurement officers, business owners, and Non-Resident Pakistanis running operations from abroad. Treat it as general information, not legal advice. For a specific case, a qualified tax professional is the right person to ask.

Why Supplier Sales Tax Verification Matters for Buyers

Your input tax claim doesn’t rest on the invoice in your hand. It rests on the supplier’s status. If they aren’t active on the FBR list, the tax on that invoice may not be allowed in your return at all. The check takes a few minutes before you pay. Sorting out a disallowed claim later takes a lot longer, and the cost ends up in your own purchase price.

Picture an ordinary week in a procurement office. A quote comes in, you agree the price, and an invoice arrives with a tax line on it. Most people glance at the total and move on. Nobody asks about the supplier’s status until later, when your return gets compared with what the supplier declared. If you’d like help building a routine around this, our sales tax registration services [link to Sales Tax Registration Services Pakistan pillar page] team works with businesses on exactly that.

NTN and Verbal Assurances Are Not Proof of Sales Tax Registration

“Yes, we’re registered” doesn’t prove anything. Neither does an NTN printed on a letterhead. An NTN is a National Tax Number, and FBR has been clear that quoting one doesn’t replace sales tax registration. To charge sales tax, a business needs a valid 13-digit STRN, and it has to show as active on the Sales Tax list.

The two numbers often sit right next to each other on a document, which is where people get caught. One can be genuine while the other is missing. So when a supplier says they’re registered, ask for the STRN, the NTN or CNIC, and the exact business title, then check them yourself. It’s a fair thing to ask, and a properly registered supplier will have all of it ready.

The Financial and Audit Exposure for Buyers

There’s real audit data behind this. The Auditor-General’s report for audit year 2020-21 found 398 registered entities that had claimed Rs 2.6 billion in input tax on invoices from suppliers who were non-active, suspended, or blacklisted. FBR does look at supplier status during audits, and claims nobody verified can be disallowed after the fact.

That doesn’t mean every purchase should feel risky. The check just needs a spot in your routine, a bit like confirming a delivery before you release payment. Buyers who keep a dated record of the verification, along with bank payment proof, are in a much better position to explain a claim if anyone asks. What that record should look like comes up further down.

How to Check the FBR Sales Tax Active Taxpayer List (ATL)

The FBR sales tax active taxpayer list is on the official e-portal at e.fbr.gov.pk, under the Active Taxpayers (Sales Tax) option. You search with the supplier’s NTN or CNIC, not the STRN on its own. What comes back is a taxpayer profile showing whether the supplier is currently active. Do this before you pay.

Plenty of guides tell you to type the STRN straight into the search box. The official utility doesn’t work that way. It wants an NTN or CNIC, so you need to collect those from the supplier along with the STRN. If a search by STRN gives you nothing, that’s probably the reason. Go back, ask for the NTN or CNIC, and try again. That’s also the short answer for anyone wondering how to check STRN Pakistan style: start with the NTN or CNIC, then confirm the STRN on the profile is the one printed on the invoice.

Step-by-Step Portal Lookup via e.fbr.gov.pk

Start by getting three things from the supplier in writing: their STRN, their NTN or CNIC, and their registered business name. Then open e.fbr.gov.pk, go to the Active Taxpayers (Sales Tax) option, type the NTN or CNIC into the search field, and submit.

A profile report for that taxpayer will come up. Read it slowly. Look at the registered name, the status, and the business activity, and make sure all three agree with the supplier’s invoice and quotation. If the name or the activity is off, stop the purchase and ask the supplier to explain before any money moves.

After that, save the report, either as a PDF or as a screenshot where the date and time are visible. A check with no date is hard to rely on later, since supplier status can change from one month to the next. And if you already use the FBR Tax Asaan mobile app or your IRIS portal login for other things, bring the same habit there: official source, saved proof.

Official FBR Utilities vs. Third-Party Verification Tools

Callout: Official FBR Portal vs Third-Party Verification Utilities

Three sources are official: the FBR e-portal at e.fbr.gov.pk, the IRIS portal, and the Tax Asaan mobile app. All of them belong to the Federal Board of Revenue. Lots of other websites and apps offer lookups, bulk checks, or data feeds pulled from somewhere else. They can help for a quick first look, but they aren’t FBR systems, and it’s best not to treat them like they are.

If a check will end up supporting a return or an audit, use the official portal and keep that result. A third-party tool is fine for convenience, as long as you confirm the supplier on the FBR portal afterwards. Whatever you file away should come from the official source.

How to Verify STRN, NTN, and Invoice Details

To verify STRN and NTN details, put the supplier’s FBR profile next to their invoice and compare. The 13-digit STRN, the registered name, the address, and the business activity should all line up. A small spelling difference might just be a typing slip. A different name, or a different kind of business altogether, needs an explanation, and you want that explanation before you pay, not after.

It’s easiest to do this at the time of purchase, when you’ve got the invoice, the FBR profile, and the supplier on the phone all at once. Leave it until month-end and you’re trying to rebuild a conversation from memory. Not sure how the two numbers relate? Our guide on the difference between NTN and STRN [link to Difference Between NTN and STRN supporting blog] explains it in plain terms.

Validating the 13-Digit STRN and Entity Details

Only a business issuing invoices with a valid 13-digit STRN can charge sales tax, so that number is the first thing to check on any tax invoice. Count the digits. Then make sure the STRN on the invoice is the same one on the FBR profile you pulled up.

Next, compare the legal name, the address, and the principal activity. Say a supplier is registered for trading in building materials but sends you an invoice for IT equipment. That deserves a second look. It doesn’t prove anything is wrong, but it’s the kind of thing a reviewer would pick up on. One quick question to the supplier, with the answer saved in an email, usually settles it.

Scope Note on Provincial Revenue Authorities

This guide covers federal sales tax on goods, checked through FBR. A lot of service providers fall under provincial authorities instead: the Punjab Revenue Authority (PRA), the Sindh Revenue Board (SRB), the Khyber Pakhtunkhwa Revenue Authority (KPRA), and the Balochistan Revenue Authority (BRA). Each has its own registration and its own way of verifying, and those have changed in recent provincial tax updates.

If you’re buying a service like consulting, catering, or advertising, find out which authority your supplier is registered with and verify them there. Our article on federal vs provincial sales tax [link to Federal vs Provincial Sales Tax supporting blog] shows how to tell which one applies to your purchase.

Interpreting FBR Statuses: What Active, Suspended, and Blacklisted Mean for Buyers

Active means the supplier is in good standing. Suspended means FBR has blocked them over compliance concerns. Blacklisted means formal action has followed findings of fraud or fake invoicing. What a buyer wants to know is whether they can claim input tax on this invoice. With an active supplier, usually yes. With a suspended or blacklisted one, no. Once you understand the sales tax registration status active suspended blacklisted difference, you can decide quickly.

Status also moves. It follows the supplier’s filing and compliance behavior, so someone who was active last quarter may look different today. A dated check at the moment of purchase is worth more than one done once and forgotten.

Active Status Requirements

An active supplier is one FBR lists on the Active Taxpayer List (Sales Tax). To stay there, they file their returns, meet their withholding obligations, and have no suspension or blacklisting against them. If the profile says Active and the details match your invoice, the first layer of your check is done.

Active is a good sign, though, not the full picture. Registrations can be obtained and then used for the wrong reasons, which is why the rest of this guide has you check identity, payment, and plausibility too. Active is where you start, not where you stop.

Suspended Status and Immediate Input Tax Reversals

FBR can suspend a registration for things like an untraceable address, an abnormal business profile, or missing returns. According to FBR guidance, buyers can’t claim input tax on invoices issued by a suspended person, no matter when the invoice was issued. If your supplier turns out to be suspended, the input tax on their invoices may have to be reversed.

In practice, that means checking before you pay, and checking again if you buy from the same supplier regularly. If a regular supplier suddenly goes quiet when you ask about their status, write that down. Keep the conversation calm and documented, and speak to your tax adviser.

Blacklisted Status and the Simulated Invoice Issuers Register

Blacklisting is the serious one. It follows formal proceedings that found fraud or fake invoice issuance. Under Finance Act 2026 and Sales Tax Circular 1 of 2026, FBR keeps a public Simulated Invoice Issuers Register that names entities issuing fictitious invoices. Buyers who dealt with listed entities can face input tax reversals going back in time.

The rules also add a 20% penalty where claimed input tax can’t be matched to the supplier’s declared output tax in FBR’s system, along with refund disallowance. For a buyer it comes down to checking the supplier, matching the details, and keeping your evidence. If a supplier you’ve already dealt with turns up on the register, talk to a tax professional about what comes next.

Handling Post-Purchase Supplier Status Changes

Sometimes a supplier’s status changes after you’ve paid, even though they were fine on the day. Newer e-invoicing integration rules mean compliant suppliers can occasionally be suspended or deregistered over technical issues, so point-in-time checks matter more than they used to.

A dated record helps here: the portal report showing the supplier as active on the day of the transaction, the invoice, and your bank payment proof. FBR’s guidance on suspended suppliers is strict, so none of this guarantees an outcome. It does give you and your tax adviser real evidence to work with if the claim gets questioned.

Mandatory Record-Keeping Before Accepting a Sales Tax Invoice

Before you accept a sales tax invoice, check that it has the required fields and that you’ve got somewhere to keep it for six years. A valid invoice shows a description of the goods or services, the quantity, the value, the tax amount, and the supplier’s STRN. Beside it, keep your dated portal check and your payment proof. Those three together make up your audit file for that purchase.

Plenty of businesses store invoices well and forget the verification record, which is the part that shows what you knew and when. Make it a habit. Invoice, portal check, payment proof, all saved together under one reference. For a wider view of what to hold on to, our sales tax compliance checklist [link to Sales Tax Compliance Checklist supporting blog] is a handy companion.

Essential Invoice Fields and 6-Year Retention Rules

Go through each invoice for the description, quantity, value, tax amount, and the supplier’s STRN before you file it. If something’s missing, ask for a corrected invoice right then. Getting a fix within days is much easier than chasing one months later.

On retention, hold purchase records for at least six years after the end of the relevant tax period. That means tax invoices, dated proof of your supplier status check, delivery receipts, and payment records. Cloud storage with clear file names (supplier name, invoice number, date) keeps things easy to find, and it protects your records if an office computer dies.

Section 73 Banking Channel Requirements

Callout: Section 73 Banking Threshold Alert

For purchases above Rs 50,000, Section 73 expects payment through a crossed bank instrument or another traceable banking channel that identifies business accounts on both sides. Pay more than Rs 50,000 in cash and your input tax claim can be at risk, even if the supplier is active and the invoice is perfect.

If a supplier asks for cash on a big invoice, push back politely. Offer a bank transfer or a crossed cheque to their business account, and keep the bank statement or transfer confirmation with the invoice. That payment trail is the third layer of your check, and auditors often look hardest at it.

Practical Supplier Verification Checklist for Procurement and NRPs

Checking the list is necessary, but it won’t carry you alone. Some operators hold a genuine active registration and still issue fictitious invoices, so a sound routine looks past status. The callout below sets out the four layers, and the checklist after it turns them into eight steps you can copy and use.

Callout: The 4-Layer Supplier Check

• Layer 1, Status: the supplier shows up as active on the official FBR list.
• Layer 2, Identity: the name on the invoice, the CNIC or NTN, the address, and the 13-digit STRN all match the FBR profile.
• Layer 3, Payment: anything above Rs 50,000 moves between business bank accounts that identify both buyer and seller.
• Layer 4, Plausibility: what the supplier is registered for, and what they can really deliver, fits what you’re buying.

Copyable Checklist

• [ ] Before agreeing to the purchase, get the supplier’s STRN, NTN or CNIC, and registered business name in writing.
• [ ] Look the supplier up on the Active Taxpayer List (Sales Tax) at e.fbr.gov.pk, using the NTN or CNIC.
• [ ] Save the portal report as a PDF or screenshot, with the date and time showing.
• [ ] Compare the invoice with the FBR profile: 13-digit STRN, legal name, address, principal activity.
• [ ] Ask yourself whether this business can realistically supply what you’re buying, going by its registered activity and its actual premises or track record.
• [ ] Pay by crossed cheque or bank transfer between business accounts for anything above Rs 50,000. Never cash.
• [ ] Keep the invoice, portal check, delivery receipt, and payment proof in one place for six years.
• [ ] Re-check regular suppliers on a schedule, and again before every advance payment or large order.

Advances need a little extra care. If you pay part of a big order up front, the supplier’s status can change before the final invoice turns up. Run the check on the day you release each advance, save that report, and ask for the tax invoice as soon as the goods or services arrive.

If you’re a Non-Resident Pakistani managing operations from abroad, the same steps work well as a written policy for your local finance manager. Ask them to send you the dated PDF of each portal check, the invoice, and the bank confirmation for any larger purchase. A shared cloud folder sorted by supplier and month lets you review the trail from anywhere without chasing paperwork.

Frequently Asked Questions (FAQs)

Is an NTN enough to prove that a supplier is registered for sales tax in Pakistan?

No. An NTN is an income tax identifier, so it can’t prove sales tax registration. FBR has said plainly that quoting an NTN doesn’t stand in for an STRN. To lawfully charge sales tax on an invoice, a supplier needs a valid 13-digit STRN and has to appear as active on the Sales Tax Active Taxpayer List.

Can an unregistered supplier charge sales tax on a purchase invoice?

No. If a supplier has no valid 13-digit STRN, they shouldn’t be showing any sales tax on an invoice. When one does, you can’t claim that amount as input tax, and accepting the invoice can raise questions in an audit. Ask for a corrected invoice without the tax line before you pay.

What is the difference between an active, suspended, and blacklisted supplier?

An active supplier has filed its required returns and has no block on the FBR portal. Suspended is a temporary block by FBR, usually over something like an untraceable address, an unusual profile, or unfiled returns. Blacklisted is heavier, since formal proceedings found fraud or fake invoice issuance. With either of the last two, buyers can’t claim input tax on the invoices.

How long must purchase invoices and supplier verification records be retained?

At least six years after the end of the relevant tax period. That covers sales tax invoices, dated proof of your supplier’s status check, delivery receipts, and payment records. Scanned copies in well-organized cloud folders make the whole thing much easier to live with.

What happens if a supplier’s status changes to suspended after I make a purchase?

FBR guidance says input tax can’t be claimed on invoices from a suspended person, whether the suspension came before or after the invoice date. What you can do is keep a dated screenshot or printout showing the supplier as active at the time of purchase, along with Section 73 bank payment proof. That gives you and your tax adviser something useful to work with if the claim is questioned.

How can Non-Resident Pakistanis arrange supplier sales tax verification remotely?

Set up a simple written routine for your local finance team. They run the portal check on every new supplier and save a dated PDF, match the invoice details against the FBR profile, pay larger purchases through business bank accounts, and store everything in cloud folders for six years. Then you review a sample of the files each month. Want help building the process? Our sales tax registration services [link to Sales Tax Registration Services Pakistan pillar page] team can set it up with you, and our sales tax compliance support [link to Sales Tax Compliance Support service page] page explains what ongoing help looks like.