Do I need an e-seal (electronic plomb) before uploading?

Yes. The upload is tied to an e-seal tracking code for a specific tax file and fiscal period. Request the e-seal first, then use its tracking code during upload.

Which file format should I upload: Excel or CSV?

Use the official Excel template for normal-sized datasets. For very large journals, CSV is often more reliable, as long as it matches the required column order and formatting rules.

What are the most common reasons an upload is rejected?

Typical causes include missing required fields, invalid date formats, unbalanced debit/credit totals, inconsistent account codes/titles, and values that do not follow the template rules.

Should I upload monthly, quarterly, or annually?

It depends on your obligations and how your accounting system is configured. Many businesses upload by fiscal period windows. Follow the rules shown in the portal and your taxpayer profile.

Where do I submit the upload?

Uploads are submitted through the Electronic Commercial Books service in my.tax.gov.ir after you sign in to your taxpayer account.

Iran Electronic Commercial Books — Upload Guide

This guide explains how to request an e-seal (electronic plomb) and upload Excel/CSV journal entries to the Electronic Commercial Books module on my.tax.gov.ir. It also highlights file rules, practical checks, and common errors so your submission is accepted.

Key takeaway

Upload is accepted only when the sealed period and the file structure match.

Request the e-seal for the correct fiscal period first.
Export using the required columns and date/number formats.
Validate totals (debit/credit) and account mapping before upload.
Submit within the permitted time window shown in your taxpayer profile.

What you need

Access to your taxpayer account on my.tax.gov.ir.
An e-seal tracking code issued for your tax file and fiscal period.
Your accounting export in the official template (Excel) or CSV (for large uploads).
Clear mapping for GL accounts and any subsidiary/auxiliary accounts.

Tip: Keep a copy of the exported file and upload confirmation for your audit trail.

Step 1 — Request the e-seal (electronic plomb)

Open the Company Registration portal and locate the option for electronic sealing of commercial books.
Select your tax file and the fiscal period (time range) you want to seal.
After approval, copy the issued tracking code (e-seal code).

Important

The tracking code is tied to a specific tax file and fiscal period.
If the period is wrong, the upload step will fail or be rejected.

Step 2 — Sign in to my.tax.gov.ir

Go to my.tax.gov.ir and sign in.
Open Electronic Commercial Books from the services list.
Choose the relevant tax file (if you manage more than one).

If you do not see the service, confirm your taxpayer profile permissions and the fiscal period eligibility.

Step 3 — Upload your file

Enter the e-seal tracking code.
Select the file type (Excel or CSV) and upload your journal entries.
Run validation (if available) and review any errors.
Submit and keep the receipt / reference number.

Before you press Submit

Confirm the file period matches the sealed period.
Confirm debit totals equal credit totals for the period.
Check that all mandatory fields are filled (no blank dates, account codes, or amounts).

Time-window rules

The system enforces time windows based on your fiscal year and reporting period. Uploads are accepted only for periods that are open in your profile and tied to a valid e-seal.

Seal and upload the same fiscal period (no mixing months/quarters).
Use the date format and period boundaries required by the portal.
If you need corrections, submit an updated file following the portal’s update/correction workflow.

Upload deadlines

Deadlines depend on your fiscal year start and the period type (monthly/quarterly/annual) shown in the portal. Always verify the latest official announcements for your taxpayer profile.

Practical rule of thumb

Plan your upload early—do not wait until the final week.
Allow time for validation errors and re-uploads.
Keep evidence of submission and system receipts.

Excel/CSV template & rules

Typical required fields

Voucher / document number
Transaction date
Account code and account title
Debit amount and credit amount
Description (if required by the template)

Formatting checks

Use a consistent date format (as required by the template/portal).
Do not mix text and numbers in amount columns.
Keep account codes consistent across lines (no leading/trailing spaces).

Common errors & fixes

Rejected file / invalid format

Download the latest template again and re-export using the same column order.
Remove extra columns, merged cells, and special formatting.
For large files, export as CSV and ensure UTF-8 encoding.

Unbalanced totals

Confirm debit totals equal credit totals for the uploaded period.
Check rounding, separators, and negative signs.

Account code/title mismatch

Keep a single source of truth for account mapping and naming.
Ensure subsidiary/auxiliary accounts (if used) are consistent with your GL structure.

Legal notes

This guide is practical and informational; your portal profile and official notices are the source of truth.
Keep your accounting system documentation and exports available for audit and system-based reviews.

FAQ

Do I have to upload Excel, or is CSV acceptable?

Excel is commonly accepted via the official template. CSV is often better for large datasets, as long as it follows the required structure and formatting rules.

Why does the system say my period is not allowed?

Usually the e-seal period does not match your file, or the period is closed in your taxpayer profile. Re-check the sealed period and the allowed windows shown inside the service.

What should I keep as evidence of compliance?

Keep the exported file, the e-seal tracking code, upload receipts/reference numbers, and any confirmation screens or messages.

Can I re-upload if I find an error after submission?

Many profiles allow correction workflows. Follow the portal’s correction method and keep records of the updated submission.

References & sources

Useful official portals related to the workflow:

my.tax.gov.ir — National Tax Services Portal