Know what is a Temporary Reference Number in GST 

Registering GST for a business means getting a unique code of 15 digits. That is Temporary Reference Number (TRN).It is called a Goods and Services Tax Identification Number. GST registration is a fundamental need for business identification. It is also required for compliance verification and any tax purposes. You can track application status using Temporary Reference Number after registration.

Registration of GST is mandatory, if the aggregate value exceeds INR 40 lakhs.

What is a Temporary Reference Number?

A Temporary Reference Number or TRN is a 15-digit unique code. TRN can be generated on your successful GST registration. Especially after filling out all parts of PART A of the application. Validate your email ID and mobile number to enter the chosen OTP and get TRN.

Generated TRN is valid only for 15 days. With the help of TRN, you can get a new registration application. This form will be available in the GST portal, and the portal can be accessible using TRN.

Also know about GST registration process.

How to track application status using TRN?

Follow these steps to track your application status using TRN:

How to track application status using TRN
  • Step 1: Visit to GST official portal.
  • Step 2: Go to the “Service” tab.
  • Step 3: Select the “Registration” option.
  • Step 4: Choose the second option TRN in the “Registration” tab.
  • Step 5: Type TRN in the Text box and enter the given captcha.
  • Step 6: Click on “Proceed” to verify the OTP.
  • Step 7: Again, click “Proceed” to see “My Saved Application”.

There you can check the status of your registration GST application.


In conclusion, a Temporary Reference Number is very important for the business process. It plays a crucial role in GST registration. It has a 15-digit unique code, generated on successful registration. The validation of TRN is 15 days, it helps in initiating new registration GST applications in the portal. By TRN you can make sure about the transparency in the tax procedure. And it takes care of accountability.

Click here to know about validity of GST registration certificate.

1. What is a Temporary Reference Number?

Temporary Reference Number or TRN is generated after registering GST. It is a 15-digit code which helps to track your application status.

2. What is the validity of TRN?

The validity period of TRN is up to 15 days.

3. How to recover the TRN number?

In case you lose TRN, you can get it back via email or SMS. You can receive it after initiating the GST filing application.

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