FBR Digital Invoicing for Chemical, Plastic and Industrial Raw Material Traders (2026)
Chemical, plastic granule and dye traders: post FBR digital invoices at 18%, add 4% further tax, pick HS codes (Chapters 28, 29, 39) and protect input tax.
What this page tells you
This page is for traders who sell chemicals, plastic granules, dyes, pigments, resins and other raw material to factories. It shows how to post each sale to FBR, which tax to add, and how to keep your buyers happy.
The key facts first. Most industrial raw material is taxed at the standard sales tax rate of 18%. A Rs 500,000 sale of plastic granules to a registered factory carries Rs 90,000 sales tax. If the buyer is not registered, further tax (an extra sales tax on sales to unregistered buyers, commonly 4%) adds about Rs 20,000 more.
Importers were in FBR's first digital invoicing group under SRO 709(I)/2025, dated 22 April 2025. SRO 1852(I)/2025 then brought every sales-tax-registered person in, with the last group due to go live by 31 December 2025. From the 2026-27 tax year, a business that is still not integrated faces a Rs 1,000,000 penalty, then up to Rs 5,000,000 if the failure continues one month, and its premises can be sealed.
Why your buyers care most about the IRN
Almost all of your customers are factories. A factory buys your raw material, pays you sales tax, and then subtracts that tax from the tax it owes. This is called input tax (sales tax already paid on purchases).
A factory can only claim that input tax if your invoice was posted to FBR and came back with an IRN (Invoice Reference Number — the unique number FBR gives every invoice it accepts). No IRN means your buyer loses the 18%. On a Rs 500,000 sale, that is Rs 90,000 the factory cannot adjust.
So a trader who is not integrated does not just risk a penalty. Good buyers will stop buying from them. Large factories now check their suppliers before paying. 'IRN and Input Tax Adjustment: Why Your Buyers Need FBR-Verified Invoices' explains this in more detail.
Post the invoice when the goods leave your godown, not at month end. The sale then shows in your buyer's Annexure-A (the purchase list in their sales tax return) in the same month.
Filling the invoice: HS code, unit and buyer type
HS code (the international product number that tells FBR what you sold). Chemical and plastic goods mostly sit in a few chapters of the tariff. Chapter 28 is inorganic chemicals, such as caustic soda and soda ash. Chapter 29 is organic chemicals, such as solvents and glycols. Chapter 32 is dyes, pigments and paints. Chapter 38 is other chemical products. Chapter 39 is plastics, including PP, PE and PVC granules. Use the exact 8-digit code for your own product. 'HS Codes in FBR Digital Invoicing: A Practical Guide' shows how to find it.
Unit of measure. Raw material is sold by weight or volume, so the unit is usually kilogram, metric tonne or litre. FBR checks that the unit fits the HS code. Quantity can carry up to four decimal places, which suits part bags and drums. See 'UoM in FBR Digital Invoicing: Picking the Right Unit of Measurement (2026)'.
Buyer type. Mark each buyer as Registered or Unregistered. FBR checks this against the buyer's real profile, and a wrong choice is rejected. A sale to a registered factory is a standard-rate sale with no further tax. A sale to an unregistered workshop or small maker needs a 13-digit CNIC and further tax on top. 'Registered vs Unregistered Buyers on FBR Invoices: Registration Type, Further Tax and ATL Checks' covers the details.
Withholding. Some large buyers are withholding agents. This means they keep back part of the sales tax and pay it to FBR themselves. When that happens, fill the withheld amount on the invoice line. 'Sales Tax Withheld at Source in FBR Digital Invoicing' explains the rule.
Returns, rate changes and bulk orders
Returned drums or bags. Do not delete the old invoice. Within 72 hours you can cancel or edit it on IRIS (FBR's online tax portal), as STGO 01 of 2026 allows. After that, issue a credit note against the original invoice within 180 days. 'Debit Notes and Credit Notes in FBR Digital Invoicing' shows the steps.
Price changes after the sale. If the final weight or price goes up, issue a debit note. If it goes down, issue a credit note. Both must point to the original IRN.
Many lines on one invoice. A single order can hold ten or more products. Every line needs its own HS code, rate, unit and value. FBR can reject the whole invoice if one line is wrong. So check each line before posting, not after.
Selling to other traders. If you also supply wholesalers, 'FBR Digital Invoicing for Wholesalers, Distributors & FMCG in Pakistan' covers high-volume billing. If you import your stock, read 'FBR Digital Invoicing for Importers: Green Channel at Risk from July 2026'. Your factory buyers can read 'FBR Digital Invoicing for Manufacturers and Factories in Pakistan (2026)'.
Digi Invoice saves your products with their HS codes and units, adds further tax on its own for unregistered buyers, and checks every line against FBR's rules before it posts. It then prints the IRN and QR code on each invoice. You can create a free account and test in the sandbox (FBR's free practice system where test invoices do not count as real) first. The steps are in 'How to Register for FBR Digital Invoicing (Step by Step)'.
Difficult words in this guide
Input tax — sales tax your buyer already paid to you, which they subtract from the tax they owe.
IRN — Invoice Reference Number, the unique number FBR gives each invoice it accepts.
Further tax — an extra sales tax, commonly 4%, charged when the buyer is not registered.
Withholding agent — a large buyer who keeps part of the sales tax and pays it to FBR directly.
Credit note — a document that reduces the value of an invoice already posted, for returns or price cuts.
For more terms, see 'FBR Digital Invoicing Dictionary — 25 Key Terms Explained'.