Invoicing & Iran's Tax System for Sheet Sales: The Challenge of Choosing the Right Product Code

For rebar, choosing the product code is relatively simple because product variety is limited. With sheet, the situation is different: hot-rolled, cold-rolled, galvanized, and color-coated, each in different thicknesses, dimensions, and grades. This variety means that correctly registering an invoice for sheet in the Taxpayers System requires greater precision, and errors can occur more easily.

Four points to check on every sheet invoice

The variety of sheet types and thicknesses makes correctly registering the product code in the Taxpayers System more precise and sensitive.

Why the wrong product code causes trouble

If you register the product code for hot-rolled sheet for a cold-rolled sheet, or enter the thickness and grade incorrectly, this discrepancy will appear in the quarterly value-added tax report and may lead to follow-up with the Tax Affairs Organization. Since sheet has a wide variety, this error occurs more often than with simpler products.

Practical steps before submitting the invoice

1. Match the exact sheet type (hot-rolled, cold-rolled, galvanized, color-coated) with the selected product code.
2. Enter the thickness, dimensions, and grade based on the actual shipment and mill test certificate, not from memory.
3. Reconfirm the buyer’s economic code, especially for a new customer.
4. Register the invoice in the timeframe stipulated by the system, particularly for high-value transactions.

This few minutes of care prevents costly subsequent tax follow-ups for a transaction that is usually high in value and whose product variety makes errors more likely.