MantechIT builds and maintains Pakistan’s most reliable FBR digital invoicing integration — connecting your Odoo ERP directly to FBR’s IRIS portal via live API. Every invoice you generate is automatically transmitted to FBR in real time. Every sale at your retail counter generates an FBR-compliant receipt instantly. Your monthly sales tax return compiles itself.
FBR’s digital invoicing mandate has fundamentally changed what Pakistani businesses must do every time they issue an invoice. If any of the following sounds familiar — your current system is putting your business at risk.

Our FBR integration connects your Odoo ERP directly to FBR’s IRIS API. The moment you confirm an invoice in Odoo — it transmits to FBR automatically, receives a unique FBR number, and displays a QR code on your invoice PDF. Your team does nothing extra.
Your team creates and confirms a sales invoice in Odoo as normal. No extra steps. No portal login. No manual data entry.
Odoo instantly formats the invoice in FBR's required schema and transmits to FBR's IRIS API in real time — under 3 seconds. All required fields included: seller NTN, buyer NTN/STRN, tax breakdown per line item, invoice date, sequential invoice number.
FBR's IRIS processes the data and returns a unique FBR invoice number. Odoo stores this number permanently against the invoice — creating an immutable compliance record.
The FBR invoice number and a scannable QR code appear automatically on the invoice PDF sent to your customer. Your buyer can verify the invoice on FBR's portal instantly.
At month-end, all IRIS-transmitted invoices are available in Odoo's tax reports — categorized by tax type. Your accountant reviews the summary and files. Time taken: under 3 hours
MantechIT’s FBR integration is not just basic GST invoicing. It covers every tax regime and every business type operating in Pakistan.

B2B Invoice Integration (Manufacturers & Distributors)
Tier-1 POS Integration (Retailers)
Tax Regime Coverage:
WHT Integration:
Error Handling:
Textile mills, garment factories, food processors, chemical manufacturers, pharmaceutical producers — every B2B invoice auto-transmitted. Mixed product catalogues with different tax rates handled automatically.
FMCG distributors, pharmaceutical distributors, chemical wholesalers, auto parts distributors — high-volume invoicing with correct tax per product line, transmitted in real time without manual effort.
Fashion chains, pharmacy networks, grocery supermarkets, electronics showrooms, restaurant chains — FBR Tier-1 compliant POS at every counter. Offline-capable. Multi-branch. Instant receipts.
Mixed tax treatment (exempt, zero-rated, standard) on pharma invoices — all handled automatically. Input tax documentation for purchases. Section 153 WHT on manufacturer purchases.
PRA 16% on construction services in Punjab. Section 153 WHT on subcontractor payments. Milestone billing to clients with correct FBR invoice format.
SRO-based exemptions, standard GST, and FED on chemical products — configured per product category. Landed cost documentation for import-sourced chemicals.
Export zero-rating on all foreign buyer invoices. Input tax documentation on fabric and trim purchases. FBR compliance for domestic sales alongside zero-rated exports.
Standard GST on processed foods. FED on carbonated beverages. Mixed invoices for food businesses supplying both retail and institutional buyers.
Every MantechIT FBR integration is live in production — not a sandbox demo or a promised feature. We show you a real invoice being transmitted to FBR's IRIS and the FBR number returned, before you sign anything.
MantechIT holds Official Odoo Partner status — certified by Odoo S.A. Verifiable at odoo.com/partners. Our technical team has passed Odoo's certification examinations. Not self-declared expertise.
Most FBR integration providers handle basic 17% GST. MantechIT covers PRA service tax, Section 153/154/155 WHT, Federal Excise Duty, export zero-rating, and SRB — because Pakistani businesses need all of it, not just the basics.
When FBR changes its IRIS API requirements, SRO notifications change tax rates, or new compliance requirements are introduced — MantechIT applies the necessary system updates for all clients under support. No extra charges.
Office 8, Block E, Johar Town, Lahore. Our team can visit your business anywhere in Lahore — DHA, Gulberg, Sundar Industrial Estate, Brandreth Road, or anywhere else — for in-person setup, training, and go-live support.
Beyond Lahore, MantechIT serves clients in Karachi, Islamabad, Faisalabad, Sialkot, Gujranwala, Rawalpindi, Multan, and all of Pakistan — with remote implementation and on-site visits for key milestones.
| Metric | Before Integration | After Integration |
|---|---|---|
| Time spent on FBR uploads | 2–4 hours daily | 0 — fully automatic |
| Monthly return preparation | 3–7 days | Under 3 hours |
| Invoice transmission errors | Frequent — manual | Near-zero — auto |
| IRIS rejection incidents | Common | Near-zero |
| FBR penalty risk | High | Eliminated |
| Input tax claim accuracy | Often disputed | Clean — verified |
| Corporate buyer compliance | Frequent complaints | Zero — all FBR verified |
| Accountant overtime | Regular | Eliminated |
We review your FBR registration, business type, invoice volume, tax regime, and current invoicing process. We provide a written project scope with fixed cost and timeline.
Odoo installed and configured for your business. Product catalogue with correct tax categories. Customer profiles with NTN/STRN. Invoice templates with all required FBR fields. Chart of accounts aligned with Pakistani tax requirements.
MantechIT's FBR IRIS integration module installed and connected to your FBR credentials. Test invoices transmitted in FBR's sandbox environment. Every tax scenario tested — standard, exempt, zero-rated, mixed, WHT, FED.
Your accounts team trained on the new invoice workflow. For POS retailers — cashiers trained on counter operations and FBR receipt handling. Management trained on monthly return review and tax reports.
First live invoices transmitted to FBR's production IRIS. MantechIT monitors all transmissions for the first week — resolving any IRIS responses or errors immediately.
Monthly FBR regulatory changes applied. IRIS API updates maintained. New tax categories added as your product range evolves. Annual compliance check included.
Yes. Your business must have an active NTN and STRN (Sales Tax Registration Number) with FBR. For Tier-1 POS, each retail branch must also be registered in FBR's POS system. MantechIT assists with FBR registration as part of the onboarding process for businesses that are not yet registered.
For a small business with B2B invoicing only: 3–4 weeks. For a Tier-1 retailer with multiple branches: 4–6 weeks. For a manufacturer or distributor with complex tax requirements: 6–10 weeks. All timelines include configuration, testing, training, and go-live support.
Yes. MantechIT demonstrates live Odoo FBR integration during your free consultation — including a test invoice transmitted to FBR's sandbox environment and the FBR number returned in real time. You see it working before signing anything.
MantechIT monitors all FBR regulatory changes and applies necessary system updates for clients under support agreements. FBR API updates, new SRO notifications, and compliance requirement changes are handled without additional charges during the support period.
Yes. MantechIT's Odoo FBR integration works for businesses anywhere in Pakistan. We serve clients in Karachi, Islamabad, Faisalabad, Sialkot, Gujranwala, Rawalpindi, Multan, and beyond — with remote implementation and on-site visits for key project milestones.
Yes. Odoo handles both B2B invoice transmission and Tier-1 retail POS integration from one system. Businesses with both wholesale and retail operations — like pharmaceutical companies with distributor and retail pharmacy operations — manage both from one integrated Odoo instance.
Odoo POS continues working offline — sales are processed and stored locally. Transactions are transmitted to FBR IRIS automatically when internet connectivity returns. No sales are lost and compliance is maintained. FBR accepts reasonable technical delays with proper documentation.
MantechIT includes FBR IRIS integration as a standard component of every Odoo implementation — not as an add-on. For Pakistani businesses, FBR compliance is not optional, so we build it in from the start.
Odoo ERP implementation, customization, business automation and FBR digital invoicing integration for businesses in Lahore and across Pakistan.
Quick Links
ERP Solutions
© 2026 Mantechit.com All Rights Reserved.