Everyday Invoicing
The short version
- An invoice that was never reported to FBR is not a valid tax invoice under Chapter XIV — so a buyer's input tax on it is at risk.
- Buyers' purchase records (Annexure-A) are matched against suppliers' declared sales (Annexure-C). Unreported or mismatched supplies show up on the buyer's side.
- If a supplier's registration is suspended, buyers may lose input tax on that supplier's invoices — so large buyers drop non-integrated suppliers.
- For suppliers, integration has become a commercial requirement, not just a legal one.
If you sell to a distributor, a manufacturer, a multinational or a government department, you have probably been asked some version of this question in 2026: "Where is the FBR number on your invoice?" Some buyers now refuse to book a purchase, or hold payment, until they see one. This is not paperwork for its own sake. It is about the buyer's input tax.
How input tax depends on your invoice
Sales tax works on credits: your buyer pays you sales tax and then deducts it, as input tax, from the tax on their own sales. That deduction is only safe if the purchase is backed by a proper tax invoice from a properly registered supplier, and if the supplier has actually declared the sale.
Digital invoicing tightened each of those links:
- Validity. Under Chapter XIV of the Sales Tax Rules (SRO 69(I)/2025), an invoice must be reported to FBR and carry the FBR invoice number and QR code. An unreported invoice is not a valid tax invoice.
- Matching. A buyer's purchases (Annexure-A of the sales tax return) are matched against what suppliers declared (Annexure-C). A supply you never reported — or reported with the wrong buyer NTN — leaves a gap in the buyer's claim.
- Registration status. When a supplier's registration is suspended or blacklisted, buyers may be unable to claim input tax on that supplier's invoices.
- Payment route. Separately, section 73 of the Sales Tax Act requires payments above the prescribed threshold to go through the banking channel for input tax to be admissible. Buyers who pay cash take on that risk too.
Why buyers are acting now
Three things changed in 2026. FBR started suspending registrations of suppliers who hadn't integrated. It expanded its AI-based checks to sales tax returns, making mismatches between buyers and suppliers easier to spot. And since every e-invoice reaches FBR in real time, the gap between "what my supplier reported" and "what I claimed" is visible almost immediately.
A finance manager facing those risks has an easy decision: buy from suppliers whose invoices carry an FBR number, and stop buying from those whose don't.
What buyers are checking
- The FBR invoice number and QR code on every invoice — and that the QR code scans.
- That the invoice shows their correct NTN and registration status.
- Your status on the Active Taxpayer List for sales tax.
- That the rate and SRO you charged are right for the goods — a wrong reduced rate becomes the buyer's problem too.
If you are the supplier
- Integrate. If you haven't, you are past your deadline — start with our digital invoicing guide.
- Keep buyer records clean. A wrong NTN or province on the buyer record repeats on every invoice. Fix it once, at the source.
- Fix errors inside 72 hours. A corrected invoice protects your buyer's claim — see the 72-hour rule.
- Make it easy to verify. Send the PDF with the FBR number and QR code at the same time as the goods, not at month-end.
If you are the buyer
- Ask suppliers for their integration status and FBR-numbered invoices in writing.
- Check suppliers' ATL status before large orders and before each return.
- Reconcile Annexure-A against invoices received each month, and chase gaps while suppliers can still correct them.
Khulasa — Roman Urdu
Buyers ab sirf woh invoice qabool kar rahe hain jis par FBR invoice number aur QR code ho, kyun ke unreported invoice valid tax invoice nahi samjhi jati aur buyer ka input tax khatre mein par jata hai.
Agar supplier ki registration suspend ho to buyer us ki invoices par input tax claim nahi kar sakta. Is liye supplier ke liye integration ab sirf qanooni nahi, karobari zaroorat ban gayi hai.
Frequently asked questions
Can I claim input tax on an invoice without an FBR invoice number?
It is at risk. Under Chapter XIV, an invoice that was not reported to FBR is not a valid tax invoice, and supplies the supplier never declared will not match your Annexure-A. Ask the supplier to report it.
My supplier's registration was suspended. What happens to my input tax?
You may be unable to claim input tax on that supplier's invoices while the suspension stands. Talk to your adviser before claiming, and ask the supplier for their restoration timeline.
How do I verify a supplier's FBR invoice?
Scan the QR code on the invoice and check that the FBR invoice number, your NTN and the amounts match. Check the supplier on FBR's Active Taxpayer List.
Sources and further reading
- Business Recorder — Integration failure: FBR starts suspending sales tax registrations
- ProPakistani — FBR increases AI monitoring of tax returns
- Faubix — FBR digital invoicing legal framework and notifications
- Sales Tax Act, 1990 — FBR
This article explains rules as we understand them on the date shown. It is not tax advice. Notifications change — check the current SRO or general order, and your own position with your tax adviser.
