Stainless steel comes in many grades, forms, and finishes, and carries high value — which makes correct product-code entry in Iran's e-invoicing system (Samaneh-ye Mo'addian) especially important. Learn the key points.
In stainless steel, both the value per kilogram is high and product variety is extensive: different grades, various forms, and multiple finishes. The combination of high value and variety makes correctly recording invoices in the Taxpayer System one of the most sensitive parts of the process.
Four points to check on every invoice
| Item | Taxpayer System requirement | Why it is more sensitive for stainless steel |
|---|---|---|
| Unique invoice identifier | Unique code for each official invoice | The high invoice amount makes errors noticeable during audits |
| Parties’ economic code | Buyer’s and seller’s codes | High-value transactions are more often with legal entities |
| Line-item product code | Correct code for the grade, form, and finish | The wide variety of grades and finishes makes code selection difficult |
| Precise product specifications | Grade, form, thickness, and finish | They must match the actual shipment and its analysis certificate exactly |

The high value and variety of stainless steel grades and finishes make correctly recording the product code in the Taxpayer System more sensitive.
Why an incorrect product code is more costly here
If you record grade ۲۰۱ with code ۳۰۴, or enter the finish and form incorrectly, this discrepancy will appear in the quarterly value-added tax report. Because stainless steel transactions involve large amounts, this error creates a large absolute figure, and its tax follow-up is also more serious.
Practical steps before submitting the invoice
- Match the exact grade, form, and finish with the selected product code.
- Enter the weight using the correct density (۸.۰) and based on a valid weighbridge.
- Reconfirm the buyer’s economic code, especially for high-value transactions.
- Register the invoice in the time period specified by the system.
This few minutes of care prevents costly tax follow-ups for a transaction that is both high-value and prone to errors because of its product variety.
A less-noticed point about finish
The surface finish of stainless steel, such as ۲B, No. ۴, or mirror, directly affects the unit price because an additional processing cost has been paid for it. If only the grade is mentioned on the invoice and the finish is omitted, the recorded amount will not correspond to the actual finished cost and will raise questions during a subsequent review. For mirror and satin sheets in particular, never omit mentioning the finish in the product line.
Frequently Asked Questions
چرا ثبت فاکتور استیل حساستر است؟
چون ارزش هر کیلو استیل بالاست و مبلغ فاکتورها بزرگ؛ هر خطای ثبت، رقم مطلق بزرگی در گزارش فصلی ایجاد میکند. ضمناً تنوع گرید و فینیش، انتخاب کد کالا را دشوارتر میکند.
چرا تفکیک گرید در فاکتور مهم است؟
چون گریدهای مختلف (۳۰۴، ۳۱۶، ۲۰۱، ۴۳۰) قیمت و گاهی کد کالای متفاوتی دارند؛ ثبت گرید اشتباه، مغایرت در گزارش و ریسک مالیاتی ایجاد میکند.
چه اطلاعاتی باید در فاکتور استیل درج شود؟
شناسهٔ یکتای فاکتور، کد اقتصادی طرفین، کد کالای درست هر ردیف، و مشخصات دقیق (گرید، فرم، ضخامت، فینیش).
Reader comments
Be the first to share your experience with this article.