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GST Registration Amendment Core & Non-Core Field Changes

Address, business name, partners, signatories and contact details. Which changes need officer approval, which go through automatically, and which need a fresh registration instead.

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Services

GST registration was painless. They asked for documents, did the filing, and shared the certificate within a day. We were back to selling without the usual portal back-and-forth.

Ravi Menon

Founder, D2C apparel brand

Expert review

A calmer GST workflow with document checks before anything is filed.

The goal is to avoid avoidable rejections: we check documents, prepare the application, file on the GST portal, track ARN, and share the certificate when approved.

24 hrs*Application and ARN target

CA-ledReview and filing support

PAN, Aadhaar, address proof, and bank details checked before submission

ARN and application status tracked after filing

Money-back assurance applies when rejection is due to our filing error

Reviewed by Priya IyerChartered Accountant & GST Reviewer · Last reviewed 30 April 2026

What's Included

Everything Included

Everything you need to register and start filing, in one bundle.

Your Bundle Breakdown

GST Registration (GSTIN in 24 hrs)
1st Month GST Return FilingFREE
Expert CA Support & ConsultationINCLUDED
Document Preparation & ARN TrackingINCLUDED

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Understanding GST

What is GST Registration?

Section 28 of the CGST Act requires a registered person to inform the department of any change in the particulars furnished at registration. Rule 19 sets the mechanics: the application is made in Form GST REG-14 within 15 days of the change.

The system splits fields into two groups, and the split decides how much friction you face. Core fields, which are the legal name of the business, any addition, deletion or retention of the principal or an additional place of business, and any change in partners, directors, Karta, managing committee or board of trustees, need the proper officer to approve the amendment. Non-core fields, which cover most other particulars including contact details and bank accounts, are updated on the portal without approval.

For a core field amendment the officer has 15 working days to act. If the officer is satisfied, the amendment is approved in Form REG-15 and takes effect from the date of the event that occasioned it. If not, a notice is issued in Form REG-03 and you reply in REG-04 within seven working days.

Some things cannot be amended at all. A change in PAN, or a change in constitution of business that requires a new PAN, or moving the principal place of business from one state to another, all mean a fresh registration rather than an amendment, because the GSTIN itself is built from the PAN and the state code.

15-Digit GSTINUnique tax identification

GST InvoicingIssue compliant invoices

Input Tax CreditClaim ITC on purchases

Interstate TradeSell across all states

Eligibility

Who Needs GST Registration?

Businesses that have moved premises or added a branch or godown

Firms adding or removing a partner, director or authorised signatory

Companies that have changed their legal or trade name

Anyone updating bank account details after registration

Businesses whose registered email or mobile is out of date

Traders adding new goods or services to their declared activity

Benefits

Benefits of GST Registration

Keeps the GSTIN valid

Particulars that no longer match reality are a suspension and cancellation risk.

Notices actually reach you

An outdated email or mobile means a notice served and a deadline missed.

Clean e-way bills

A dispatch address that does not match the registration causes detention at check posts.

Correct invoices

The address on your tax invoice has to match the registration for your buyer to be safe.

Inside the 15-day window

Filed within 15 days of the change, as Rule 19 requires.

Queries handled

A REG-03 notice needs a REG-04 reply within seven working days, which is easy to miss.

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Core and non-core fields

Knowing which side a change falls on tells you whether it is done this afternoon or takes a fortnight. Core fields go to an officer. Non-core fields are updated and applied straight away.

Which fields need approval
Field	Type	Approval
Legal name of the business, PAN unchanged	Core	Officer approval, 15 working days
Principal place of business	Core	Officer approval, 15 working days
Additional place of business	Core	Officer approval, 15 working days
Partners, directors, Karta, managing committee	Core	Officer approval, 15 working days
Trade name	Non-core	Auto-approved on submission
Bank account details	Non-core	Auto-approved on submission
Email address and mobile number	Non-core	Auto-approved after OTP verification
Goods and services supplied, HSN or SAC	Non-core	Auto-approved on submission
Authorised signatory details	Non-core	Auto-approved on submission
State of the principal place of business	Not amendable	Fresh registration required
PAN	Not amendable	Fresh registration required

How the process runs

The application goes in on Form REG-14 with the supporting document for the change: a rent agreement and utility bill for a new address, a board resolution or amended deed for a change in partners or directors, and so on. Attaching the right proof is what separates an amendment approved in a week from one that draws a notice.

Where the officer is not satisfied, a show cause notice comes in Form REG-03 and you have seven working days to reply in Form REG-04. If no notice is issued within 15 working days, the amendment is deemed approved and the certificate is updated.

Amendment timeline under Rule 19
Stage	Form	Time
Apply after the change	REG-14	Within 15 days of the event
Officer approves	REG-15	Within 15 working days
Officer raises a query	REG-03	Within 15 working days
You reply to the query	REG-04	Within 7 working days of the notice
No action by the officer	Deemed approved	After 15 working days
Effective date	Date of the event	Not the date of the application

Changes that need a new registration instead

Some changes go to the identity of the registration rather than its particulars, and no amendment can carry them. The GSTIN is constructed from the state code and the PAN, so a change to either means a different GSTIN.

Moving the principal place of business to another state is the one businesses most often try to handle as an amendment. It cannot be. You register in the new state and cancel the old registration, and the transition needs sequencing so you are never supplying from a state where you are not registered.

Change of PAN: fresh registration, no amendment possible

Change of constitution requiring a new PAN, such as proprietorship to private limited: fresh registration

Principal place of business moving to another state: register in the new state, cancel the old one

Transfer of business on succession or amalgamation: fresh registration for the transferee, with credit transferred through Form ITC-02

Why This Page Exists

Proof and operating detail

We use this page to explain how the registration workflow actually works in practice, not just to collect a lead.

Document pre-check before filing

We review signatory, address, entity, and bank proofs before REG-01 is filed so applications do not fail on basic formatting or mismatch issues.

First-month compliance guidance included

The registration workflow is tied to the first filing cycle so new GSTIN holders do not get surprised by nil-return or first-month deadline issues.

Built for remote filing across India

The service flow is designed for WhatsApp and online document handoff, which matches how most founders, freelancers, and sellers actually complete registration.

Filing workflow

How GST registration works

A visible process from document collection to GSTIN delivery, with status updates along the way.

Share Your Details

Share your PAN, Aadhaar, address proof, and business details with our team.

Expert Verification

Our CA team verifies your documents, prepares the application, and files it on the GST portal.

ARN Generated

You receive your Application Reference Number (ARN) within hours of filing.

GSTIN Delivered

GSTIN is granted in three working days on the Rule 14A route, or once verification clears on the normal route.

Documents required

Documents needed for GST registration

We confirm which documents apply to your entity type before filing.

Required for most applicants

PAN Card of the applicant
Aadhaar Card of the applicant
Photograph (passport size)
Proof of business address (rent agreement / electricity bill)
Bank statement or cancelled cheque
Authorization letter / Board resolution (for companies)

Depends on business type

Incorporation certificate (for Pvt Ltd / LLP)
Digital Signature Certificate (for companies)

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Expert-reviewed registration support, ARN tracking, and first-month filing guidance included.

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FAQs

Frequently Asked Questions

How do I change the address on my GST registration?

File Form GST REG-14 within 15 days of the change, attaching proof of the new premises such as a rent agreement with the owner NOC, or the electricity bill and property tax receipt for owned premises. The principal place of business is a core field, so the proper officer must approve it, normally within 15 working days.

What is the difference between core and non-core fields?

Core fields are the legal name of the business, the principal and additional places of business, and changes to partners, directors, Karta or managing committee. They need officer approval. Non-core fields, including trade name, bank details, contact details, authorised signatory and the goods or services declared, are updated on the portal without approval.

How long do I have to file an amendment?

Fifteen days from the date of the change, under Rule 19. The amendment takes effect from the date of the event that occasioned it, not from the date you applied.

How long does approval take?

For a core field, the proper officer has 15 working days. If satisfied, approval is issued in Form REG-15. If not, a notice comes in Form REG-03 and you reply in Form REG-04 within seven working days. If the officer takes no action within 15 working days, the amendment is deemed approved.

Can I change my PAN on an existing GSTIN?

No. The GSTIN is built from the state code and the PAN, so a change of PAN means a different GSTIN. You apply for fresh registration and cancel the old one. The same applies to a change of constitution that requires a new PAN, such as converting a proprietorship into a private limited company.

What if I move my business to another state?

That cannot be done by amendment either. Registration is state-wise, so you register in the new state and cancel the registration in the old one. Sequence the two so there is no period where you are supplying from a state in which you are not registered.

Can I add a new business activity without an amendment?

The goods and services you supply, with their HSN or SAC codes, is a non-core field, so it is updated on the portal and applied straight away without officer approval. Keeping it current matters because a mismatch between declared activity and actual invoicing is a routine scrutiny trigger.

How do I add or remove a partner or director?

Through Form REG-14, attaching the amended partnership deed or the board resolution as applicable, together with the KYC of anyone being added. This is a core field, so it goes to the officer for approval within 15 working days.

What happens if I never update my registration?

Two things, and the second is worse. Notices are served to the registered email and mobile, so an outdated contact means a deadline passing without you knowing. And particulars that no longer match reality, such as a place of business you have left, are grounds for suspension and eventually cancellation under Section 29.