Does multi-state registration give one GSTIN for all of India?

No. GST registration remains State-wise. You still get a separate GSTIN for each State/UT, and each one files its own returns. Only the application process is combined.

Who can use the GST Multi-State Registration facility?

Currently only Normal Taxpayers who want registration in more than one State/UT under the same PAN. Other categories, such as TDS deductors, TCS collectors and non-resident taxable persons, use the regular registration route.

Within how many days must the Master TRN be submitted?

The Master TRN, with the Common Registration Information, must be submitted within 15 days of generation, according to the GSTN advisory of 1 October 2026.

What do I still have to fill for each State?

The principal place of business, any additional places of business, State-specific information and Aadhaar authentication must be completed in each State-specific TRN.

Can I apply for two registrations in the same State using one Master TRN?

No. Multiple States/UTs can be selected, but only one registration can be applied for in a particular State/UT using one Master TRN.

GST Multi-State Registration: Master TRN Guide (2026)

Q: What details are entered only once?

Business details, promoter/partner details, authorised signatory, authorised representative and goods and services. These are auto-populated in each State TRN and remain editable.

GST multi-state registration: one Master TRN, separate GSTIN for each State

Quick answer

GST multi-state registration is a new GST portal facility, live from 1 October 2026. You select all the States/UTs you need, get one Master TRN, enter the common details (business, promoters, authorised signatory, goods and services) once, and the portal then creates a separate TRN for each State/UT. It is available only for Normal Taxpayers. It does not give you one GSTIN for India: you still get one GSTIN per State/UT, and each one is a separate registration.

GST multi-state registration summary: select States, one Master TRN, common details entered once, State-wise TRNs and separate GSTINs — GST Multi-State Registration at a glance (source: GSTN advisory, 1 October 2026)

What is GST multi-state registration?

Before GST multi-state registration, a business that needed registration in, say, Maharashtra, Karnataka and Tamil Nadu had to file three separate FORM GST REG-01 applications, one per State, typing the same business, promoter and signatory details three times.

On 1 October 2026, GSTN issued an advisory on the Multistate Registration facility and added a Multi-State Registration tab on the GST portal home page, next to Register and Login. Taxpayers seeking registration in more than one State/UT under the same PAN can now start all those applications together. The common information is captured once and copied into every State application.

Key points at a glance

One Master TRN

A single Master Temporary Reference Number is generated for all the States/UTs you select.

Multiple States/UTs

Select as many States/UTs as you need from a multi-select list, but only one registration per State/UT per Master TRN.

State-wise TRNs and GSTINs

Once the common details are submitted, a separate TRN is created for each State/UT, and each one becomes its own application and, on approval, its own GSTIN.

Common details entered once

Business details, promoters/partners, authorised signatory, authorised representative and goods and services are filled once and auto-populated (still editable) in every State TRN.

Normal taxpayers only

For now, the facility is enabled only for Normal Taxpayers. Other registration types still use the regular Register route.

Important: this is not one GSTIN for the whole country

GST registration remains State-wise. Section 25(1) of the CGST Act requires registration in each State or Union territory from which you make taxable supplies, and each GSTIN starts with that State's code. Multi-State Registration only makes the application easier. After approval you will still hold several GSTINs, file returns for each, and treat each one as a separate (distinct) person.

Old process vs Multi-State Registration

Point	Earlier (one application per State)	Multi-State Registration
Where you start	Register, separately for each State	Multi-State Registration tab on the portal home page
Reference number	One TRN per State, generated separately	One Master TRN for all selected States, then a TRN per State
Business, promoter, signatory, goods and services details	Typed again in every application	Entered once as Common Registration Information (CRI) and auto-populated
Place of business, State-specific details, Aadhaar authentication	Per State	Still per State, in each State TRN
GSTIN	One per State	Still one per State
Who can use it	All registration types	Normal Taxpayers only (currently)

How to apply: step-by-step

Open Multi-State Registration
On the GST portal home page, click Multi-State Registration (it opens reg.gst.gov.in/registration/msr). The "I am a" field is fixed as Taxpayer, since the facility is only for Normal Taxpayers.
Select the States/UTs
Choose every State/UT where you need registration from the multi-select list. Only one registration can be applied for in a particular State/UT using one Master TRN.
3
Enter PAN-level details and verify OTPs
Enter the legal name of the business (as in PAN, and MCA records where applicable), PAN, email address and mobile number. Separate OTPs are sent to the email and the mobile number.
- Check the legal name matches PAN exactly, because it flows into every State application.
Get the Master TRN
After OTP verification, one Master TRN is generated for all the selected States/UTs.
5
Fill the Common Registration Information (CRI)
Log in with the Master TRN and fill the details common to all States:
- Business details
- Promoter / partner details
- Authorised signatory
- Authorised representative
- Goods and services
Submit the Master TRN within 15 days
The Master TRN must be submitted within 15 days. Plan your documents before you start.
7
Complete each State TRN
On submission, an individual TRN is created for each State/UT, with the CRI already filled in (you can still edit it). Then complete the State-specific parts:
- Principal Place of Business (PPoB) in that State
- Additional Places of Business (APoB), if any
- State-specific information
- Aadhaar authentication
Track each application separately
Each State application is submitted and verified on its own by that State's jurisdiction, and on approval you receive a separate GSTIN and registration certificate for each State/UT.

Documents you still need for each State

Multi-State Registration saves typing, not paperwork. Keep these ready for every State before you start the 15-day clock:

Proof of principal place of business in that State: rent or lease agreement, ownership document, electricity bill or consent letter, as applicable.
Photographs and details of promoters/partners and the authorised signatory (entered once in the CRI).
Authorisation (board resolution or letter of authorisation) for the authorised signatory.
Aadhaar authentication for each State application, as required by the portal.
Bank account details, where asked for at that stage.

Common mistakes to avoid

Mistake	What happens	How to avoid it
Assuming you will get one all-India GSTIN	Invoices, returns and ITC set up wrongly	Plan for one GSTIN, one set of returns and one invoice series per State
Errors in the common details	The same error is copied into every State application	Review the CRI carefully before submitting the Master TRN, and correct it in each State TRN if needed
Missing the 15-day window for the Master TRN	You have to start again	Collect State-wise documents before generating the Master TRN
Trying to apply twice in one State with one Master TRN	Not allowed	Use a separate application for a second registration in the same State
Applying as a non-normal taxpayer	The facility is not available	TDS/TCS registrations, non-resident taxable persons and other special categories use the regular Register route

What changes after you get multiple GSTINs

Each GSTIN is a distinct person under section 25(4) of the CGST Act. Once registered in several States, plan for the following:

Separate returns (GSTR-1, GSTR-3B and annual returns) for every GSTIN.
Stock transfers and branch supplies between your own GSTINs are supplies, and are taxed and invoiced like sales.
Common input services billed to one GSTIN but used by others must be distributed through an Input Service Distributor (ISD), which is mandatory from 1 April 2025.
Composition scheme: if one registration under a PAN wants composition, all registrations under that PAN must opt for it.
ITC reconciliation per GSTIN: GSTR-2B, IMS and purchase registers have to be matched State by State.

GSTCPC handles multi-GSTIN compliance from one dashboard: return filing, GSTR-2B and purchase reconciliation and notice tracking for every GSTIN under your PAN. For the basics of a first registration, see our guide to GST registration in India.

Frequently Asked Questions

A Master TRN (Master Temporary Reference Number) is a single reference number generated when you apply for GST registration in several States/UTs at once through the Multi-State Registration facility. You use it to fill the common details once; on submission, separate State-specific TRNs are generated.