GST Authorization Letter What It Is and How to Draft One

In many jurisdictions that levy Goods and Services Tax (GST), businesses often need to appoint a third partyusually a chartered accountant, tax consultant or a corporate service providerto handle GSTrelated filings on their behalf. The legal instrument that gives this third party the right to act is called a GST authorization letter. This page explains the purpose, key components, legal considerations and provides a readytouse sample.

Why a GST Authorization Letter Is Required

• Statutory compliance: Tax authorities typically require a written, signed authorization before allowing a representative to submit returns, claim refunds or communicate with the department.
• Risk management: The letter clearly defines the scope of authority, helping both the taxpayer and the representative understand limits and responsibilities.
• Audit trail: A documented authorization serves as evidence in case of disputes or audits.

Who Can Issue the Letter?

The letter must be signed by an authorized signatory of the GSTregistered entityusually a director, managing partner, or company secretarywho has the power to bind the company.

Key Elements of a GST Authorization Letter

1. Header: Company name, registration number, GSTIN and address.
2. Date of issuance.
3. Recipient details: Name, designation, firm name and contact information of the authorized representative.
4. Scope of authority: A detailed list of activities the representative may perform, e.g., filing returns, obtaining certificates, requesting refunds, etc.
5. Validity period: Start and end dates, or statement until revoked in writing.
6. Limitation of liability: Any conditions or restrictions (e.g., no authority to sign contracts on behalf of the company).
7. Signature block: Name, title, and signature of the authorizing signatory, plus company seal if required.
8. Attachments: Copy of the GST registration certificate, identity proof of the signatory, and any required forms prescribed by the tax authority.

Legal Requirements & Best Practices

• Ensure the letter is on the companys letterhead.
• Use the exact wording demanded by the local tax authority; some jurisdictions have a prescribed format or require a specific form.
• Both parties should retain a signed copyone for the taxpayer, one for the tax authority.
• If the company is a partnership, obtain signatures of all partners or as per the partnership deed.
• Update the authorization promptly when there is a change in the representative, scope, or when the authorized person leaves the firm.

Common Mistakes to Avoid

• Leaving the scope of authority vague always list specific tasks.
• Forgetting the company seal where it is mandatory.
• Using an outdated GSTIN or registration number.
• Not specifying the validity period, which can lead to unintended perpetual authority.
• Failing to attach required supporting documents, causing rejection by the tax department.

Sample GST Authorization Letter

How to Submit the Letter

Most tax authorities accept the authorization letter either as a scanned PDF uploaded through the online portal or as a physical copy submitted at the tax office. Follow these steps:

1. Prepare the letter on company letterhead.
2. Obtain signatures and affix the seal.
3. Scan the document clearly (minimum 300dpi).
4. Log in to the GST portal and navigate to Authorized Signatory/Representative section.
5. Upload the PDF and any supporting documents.
6. Save and note the acknowledgment reference number.

Revoking or Modifying an Authorization

To cancel or amend an existing authorization, issue a new letter stating Revocation of Previous Authorization and reference the earlier letters date and acknowledgment number. Submit the revocation in the same manner as the original.

Conclusion

A welldrafted GST authorization letter protects both the taxpayer and the authorized representative by clearly defining rights and obligations. By adhering to the format, including all required details and keeping the document uptodate, businesses can ensure smooth compliance with GST filing obligations while minimizing the risk of disputes with the tax authority.

For further assistance, consult a qualified tax professional or visit the official GST portal of your jurisdiction.