When writing a complaint letter, it's essential to be clear and polite. Start with a concise summary of the issue, highlighting the importance of clarity and precision in communication. Avoid common pitfalls like unclear language or omitting necessary details. Remember to include all relevant information, such as vendor details and invoice numbers, and politely request action from the recipient.

Table of Contents:

Demand Letter for Unpaid GST by Vendors to GST Department


Goods & Services Tax Commissionerate,
___________ (City),
India, Pin code: ________(Pincode)

Subject: Complaint for Tax not deposit by Vendors

Dear Sir / Madam,

We would like to bring to your notice that some of our vendors / Sellers have not deposited their GST Tax, which was taken from us as per GST Liability. Due to the same, we are not able to avail GST INPUT.

Hereby we are complaining against these vendors / Sellers so that necessary action can be taken against them by you. Details of Parties & their Bills are as follows (photocopies of Invoices Attached):

Sl No.Seller NameSeller GSTIN No Bill No Dated  Taxable Value   SGST  CGST   Total Value 

Besides regular telephonic follow up with them the above vendors/sellers they are not giving us proper justification/reason for non-deposit of GST taken from us.

We already paid the above invoice to them with GST via Bank. We request you to take strict action against these vendors & start an investigation. Also, provide us our Complaint Number to track the complaint.

Your prompt response to this matter will highly be appreciated.

Please find the above in order and do the needful.

Thanking You in Advance.

COMPANY NAME: _________________
NAME: _____________
DESIGNATION: _______________
Contact Number: _____________

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  1. What should I include in a complaint letter to the GST department regarding unpaid taxes by vendors?
    • Ensure to include details such as vendor names, GSTIN numbers, invoice numbers, and dates, along with a clear description of the issue and your efforts to resolve it.
  2. How should I address the recipients of the complaint letter?
    • Address the letter to the Goods & Services Tax Commissionerate in the respective city and state. Use a polite salutation such as "Dear Sir/Madam."
  3. What action can I request from the GST department in response to unpaid taxes by vendors?
    • You can request the GST department to take strict action against the non-compliant vendors, initiate an investigation into the matter, and provide you with a Complaint Number for tracking purposes.
  4. Is it necessary to provide evidence along with the complaint letter?
    • Yes, it's advisable to attach photocopies of relevant invoices and documents that support your complaint to facilitate a prompt and accurate investigation.
  5. What should I do if the vendors do not respond to my attempts to communicate regarding unpaid taxes?
    • If the vendors/sellers do not provide a satisfactory explanation despite your efforts, it's essential to escalate the matter to the GST department for further action, as outlined in the complaint letter.

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    • GST not deposited by supplier
    • Goods & Services Tax not deposited by suppliers before due date

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