Letter Format of Authorization for GST Sole Proprietorship

If you are a sole proprietorship then you need to register for GST if your business turnover exceeds a specific amount. And for that a letter of authorization of GST is written. Just like Partnership Authorization Letter, Letter of Authorization for GST Sole Proprietorship forms an important document that registers your firm for GST. The GST Authorised Letter Format for Partnership Firm is same as that for sole proprietorship.

This post includes a formal format for Letter of Authorization for GST. You can use this letter just like the authorization for GST for partnership to create a personalized letter.

Sample Letter of Authorization for GST Sole Proprietorship

Declaration for Authorized Signatory

I, Rob Smith, affirm by writing this letter that Mr. Richard Smith will act as the authorized signatory for Zenith Technologies. The GST registration number of the business is 7889455612.

The actions of Mr. Richard Smith concerning this business will be acting as a binding on us.

Rob Smith

Proprietor

Zenith Technologies

New York

Acceptance to Act as Authorized Signatory

I, Richard Smith, give my acceptance that I will be behaving like the authorized signatory for Zenith Technologies and my actions will be the binding on the business.

Richard Smith

Manager

Zenith Technologies

New York

Date: January 5th, 2026

Click Here to Download Letter of Authorization for GST Sole Proprietorship in Word Format