GST Registration Forms List: REG-01 to REG-31 Explained

GST registration uses 31 distinct forms (Form GST REG-01 to REG-31), each tied to a specific stage of the registration lifecycle — application, amendment, cancellation, suspension, revocation, and TDS/TCS registration. The most-used forms are REG-01 (new application), REG-06 (registration certificate), REG-14 (amendment), and REG-29 (cancellation). Knowing which form to use saves weeks of confusion.

This is a complete reference of every GST registration form, what it's for, who files it, and the deadline. Bookmark this page if you handle GST applications regularly.

What is the registration form used for GST?

Form GST REG-01 is the application form for new GST registration. It's filed online at gst.gov.in by anyone applying for a fresh GSTIN. The form has two parts: Part A (PAN, mobile, email — generates a Temporary Reference Number or TRN), and Part B (business details, promoter information, address proof, HSN/SAC codes, bank details).

For Casual Taxable Persons and Non-Resident Taxable Persons, the form is REG-09 instead. For TDS Deductors and TCS Collectors, it's REG-07. The "registration form" terminology in everyday speech almost always refers to REG-01 unless otherwise specified.

Complete list of GST registration forms (REG-01 to REG-31)

Form	Purpose	Filed by	Deadline / Validity
REG-01	Application for new GST registration	Taxpayer	Within 30 days of becoming liable
REG-02	Acknowledgement of REG-01 submission	Auto-issued by portal	Instant on submission
REG-03	Notice for seeking additional info / Show Cause Notice	Proper Officer	Within 7 working days of REG-01
REG-04	Reply to Show Cause Notice (clarification)	Taxpayer	Within 7 working days of REG-03
REG-05	Order of rejection of registration application	Proper Officer	Within 7 working days of REG-04 (or non-response)
REG-06	GST registration certificate (with GSTIN)	Proper Officer (auto)	On approval, permanent
REG-07	Application for TDS Deductor / TCS Collector registration	Govt depts, e-commerce operators	Before commencing deduction/collection
REG-08	Order of cancellation of TDS/TCS registration	Proper Officer	—
REG-09	Application for Non-Resident Taxable Person / Casual Taxable Person	Foreign / temporary suppliers	5 days before commencing supply
REG-10	Application for OIDAR service provider registration	Foreign digital service providers	Before commencing supply to India
REG-11	Extension of validity for CTP / NRTP	Taxpayer	Before existing validity expires (extends by 90 days)
REG-12	Order of suo moto registration by officer	Proper Officer	—
REG-13	Application for UIN (UN bodies, embassies, consulates)	Diplomatic / international bodies	—
REG-14	Application for amendment of registration	Taxpayer	Within 15 days of change
REG-15	Order of approval of amendment	Proper Officer	Within 15 working days of REG-14
REG-16	Application for cancellation of registration	Taxpayer	Within 30 days of event triggering cancellation
REG-17	Show Cause Notice for cancellation by officer	Proper Officer	—
REG-18	Reply to REG-17 (defending against cancellation)	Taxpayer	Within 7 working days of REG-17
REG-19	Order of cancellation of registration	Proper Officer	—
REG-20	Order of dropping of cancellation proceedings	Proper Officer	—
REG-21	Application for revocation of cancelled registration	Taxpayer	Within 90 days of cancellation order
REG-22	Order of revocation	Proper Officer	Within 30 days of REG-21
REG-23	SCN before rejecting revocation request	Proper Officer	—
REG-24	Reply to REG-23	Taxpayer	Within 7 working days
REG-25	Certificate of provisional registration (legacy from VAT era)	Auto-issued during transition	—
REG-26	Application for enrolment of provisional registration	Legacy taxpayers	—
REG-27	SCN for cancellation of provisional registration	Proper Officer	—
REG-28	Order of cancellation of provisional registration	Proper Officer	—
REG-29	Application for cancellation of provisional registration by taxpayer	Taxpayer (legacy)	—
REG-30	Field visit / physical verification report	Proper Officer	Within 15 working days of visit
REG-31	Intimation for suspension of registration	Proper Officer	Pending cancellation proceedings

Most-used GST registration forms explained

Form REG-01 — New registration application

The form everyone starts with. Filed online at gst.gov.in → Services → Registration → New Registration. Part A captures PAN, mobile, and email — these get OTP-verified to issue a Temporary Reference Number (TRN). Part B is the long part: business details, promoter information, principal place of business, additional places of business, HSN/SAC codes, bank details, and authorised signatory.

For step-by-step walkthrough, see our GST registration process guide.

Form REG-03 and REG-04 — Show Cause Notice and reply

REG-03 is the SCN issued by the proper officer when they want clarification before deciding on REG-01. Common triggers: address mismatch, wrong HSN, weak documents, photo issues. The taxpayer must reply via REG-04 within 7 working days. Missing the deadline = automatic rejection via REG-05.

Form REG-06 — Registration certificate

The deliverable. REG-06 is the digital certificate carrying the 15-digit GSTIN, business name, address, and QR code. Auto-generated upon approval, downloaded from Services → User Services → View/Download Certificates. Display at every place of business under Rule 18.

Form REG-09 — Casual / Non-Resident Taxable Person

Used when registering for short-term GST in a state where you don't have a fixed place of business (exhibitions, trade fairs, temporary stalls), or as a foreign supplier without an Indian establishment. Filed at least 5 days before commencing business. Validity is 90 days, extendable by another 90 via REG-11.

Form REG-14 — Amendment of registration

Used to update business details after registration is approved — change in legal name, trade name, principal place of business, additional places, partners/directors, signatories, or bank account. Core field amendments require officer approval (Form REG-15) within 15 working days. Non-core changes (additional places, bank, signatories) auto-approve immediately.

See our detailed walkthrough: how to update business details on the GST portal.

Form REG-16 — Cancellation by taxpayer

Filed when a business voluntarily wants to cancel its GSTIN — closure, business sold, turnover dropped below threshold, or change in constitution. Must be filed within 30 days of the cancellation-triggering event. Stock and capital goods ITC reversal is computed via Form GSTR-10 (final return) within 3 months of cancellation.

Form REG-21 — Revocation of cancellation

If the GST officer cancels your registration suo moto (typically for non-filing of returns over 6 months), you have 90 days from the cancellation order to file Form REG-21 requesting revocation. You must file all pending returns and pay all dues before submitting. Officer approves via Form REG-22 within 30 days.

Form REG-30 — Physical verification report

Internal officer form used after a site visit under Rule 25. The officer photographs the premises, verifies the address, and uploads the report to the portal. As an applicant, you don't file REG-30 — but its content directly determines whether your application is approved or rejected.

Form REG-31 — Suspension intimation

Issued when the officer intends to cancel registration but proceedings are still ongoing. During suspension, the taxpayer cannot make taxable supplies, cannot issue tax invoices, and cannot collect GST. Suspension lifts automatically if cancellation is dropped (Form REG-20) or revocation is approved (Form REG-22).

Other related GST forms (not in REG series)

Beyond the 31 REG forms, several other forms are part of the registration ecosystem:

Form	Purpose
CMP-01	Intimation to opt for Composition Scheme (legacy/transitional)
CMP-02	Intimation to opt into Composition for a financial year
CMP-03	Stock declaration on opting into Composition
CMP-04	Withdrawal from Composition Scheme
CMP-05 to CMP-07	SCN, reply, and order for compulsory withdrawal from Composition
ITC-01	Claim ITC on stock when moving from Composition to Regular
ITC-02	Transfer of unutilised ITC on merger, sale, transfer, or amalgamation
ITC-03	Reversal of ITC on stock when moving from Regular to Composition
GSTR-10	Final return after cancellation of registration

Which form is used in which section of the CGST Act?

Each form maps to a specific provision of the CGST Act, 2017 and the CGST Rules, 2017:

Section 22 (threshold-based registration) — applies via REG-01
Section 24 (compulsory registration) — applies via REG-01
Section 25 (procedure for registration) — REG-01, REG-02, REG-06
Section 27 (CTP / NRTP) — REG-09, REG-11
Section 28 (amendment) — REG-14, REG-15
Section 29 (cancellation) — REG-16, REG-17, REG-18, REG-19, REG-20
Section 30 (revocation) — REG-21, REG-22, REG-23, REG-24
Section 51 / 52 (TDS / TCS) — REG-07, REG-08

How to file the right GST form (decision tree)

Starting fresh? → Form REG-01 (or REG-09 for CTP/NRTP, REG-07 for TDS/TCS)
Got an SCN? → Form REG-04 (within 7 working days)
Need to update business details? → Form REG-14
Closing the business? → Form REG-16, then GSTR-10 within 3 months
Officer cancelled your GSTIN? → Form REG-21 (within 90 days)
Validity of your CTP/NRTP expiring? → Form REG-11 (before expiry)
Want to opt out of Composition? → Form CMP-04
Merging two GSTINs / business sale? → Form ITC-02 to transfer ITC

Frequently Asked Questions

Which form is used for new GST registration?

Form GST REG-01 is the application form for new GST registration in India. It's filed online at gst.gov.in → Services → Registration → New Registration. The form has Part A (PAN, mobile, email) and Part B (business details, promoter info, place of business, HSN/SAC, bank details).

What is Form REG-06 in GST?

Form REG-06 is the GST registration certificate issued by the proper officer once the application is approved. It carries the 15-digit GSTIN, legal name, principal place of business, and a QR code. The certificate is digitally signed, doesn't expire, and must be displayed at every place of business under Rule 18.

How many GST registration forms are there?

There are 31 forms in the GST registration series (REG-01 to REG-31), covering new applications, amendments, cancellations, suspensions, revocations, TDS/TCS, and physical verification. Additional related forms include CMP series (Composition Scheme), ITC series (input tax credit transfers), and GSTR-10 (final return).

What is Form REG-14 used for?

Form REG-14 is the application for amendment of GST registration. It's used to update legal name, trade name, principal address, additional places of business, partners/directors, signatories, and bank accounts. Core field amendments require officer approval (Form REG-15) within 15 working days; non-core changes auto-approve immediately.

What's the difference between REG-01 and REG-09?

REG-01 is for resident Indian taxpayers applying for regular or composition GST. REG-09 is for Casual Taxable Persons (occasional supply in a state without fixed place of business) and Non-Resident Taxable Persons (foreign suppliers without Indian PE). REG-09 has 90-day validity and requires advance tax deposit.

How long do I have to respond to a Form REG-03 notice?

You have 7 working days from the date of REG-03 issuance to file Form REG-04 with clarification or corrected documents. Missing this deadline results in automatic rejection via Form REG-05. The 7-day period is fixed under Rule 9(2) of the CGST Rules and cannot be extended.

If filling these forms feels like a maze, our GST registration service handles REG-01, REG-04 (SCN reply), and REG-14 (amendments) for ₹499 — including officer follow-up. For specific situations, see our application status guide, rejection reasons, or amendment walkthrough.

What should you verify before using this GST Registration guide?

Before acting on gst registration forms list, verify the current rules or platform behavior with the GST Portal. The practical answer depends on your business model, state, turnover, documents, software stack, and whether the decision affects tax, customer data, paid media spend, or a production workflow.

Use this article as a working checklist, then confirm thresholds, registration status, return forms, document rules, and portal notices. In our audits, most expensive mistakes do not come from ignoring the whole process. They come from one stale assumption, one mismatched address, one missing event, or one automation path that nobody tested after launch.

Checkpoint	Why it matters	Where to confirm
Current rule or platform status	Limits, forms, policies, and APIs can change after a blog update.	GST Portal
Your exact business case	A local shop, freelancer, D2C store, agency, and SaaS team rarely need the same next step.	Documents, invoices, campaign data, analytics setup, or workflow logs
Implementation evidence	The safest GST decision is backed by proof, not memory or screenshots from an old setup.	Portal acknowledgement, dashboard export, invoice sample, test lead, or error log

How do we apply this in real business work?

We start with the smallest decision that can be verified. For compliance work, that means matching PAN, address, bank, invoices, and portal status before filing. For websites, marketing, analytics, and automation, it means testing the real user path from first click to final record. The boring checks catch the costly failures.

A useful rule: if a claim changes money, tax, reporting, or customer communication, keep evidence for it. Save the acknowledgement, export the report, test the form, and note the date you verified the source. That gives you a clean trail when a client, officer, platform, or internal team asks why the setup was done that way.

When should you get expert review?

Get expert review when the next action can create tax exposure, lost reporting data, ad waste, broken customer communication, or production downtime. A simple self-check is enough for low-risk learning. A filed return, new registration, tracking migration, paid campaign restructure, or live automation deserves a second set of eyes before it affects customers or records.

How often should this be rechecked?

Recheck the decision whenever your turnover, state, product mix, campaign budget, website stack, analytics property, or workflow ownership changes. Also recheck it after major portal updates, platform policy changes, annual filing deadlines, and vendor migrations. The guide is useful today only if the facts behind it still match your business.

What is the fastest safe way to decide?

Write the decision in one sentence, list the proof needed for that sentence, and verify only those items first. This keeps the work focused. If the proof confirms the decision, proceed. If one item is unclear, pause and resolve that point before changing filings, campaigns, tracking, website code, or automation logic.

What can go wrong if you skip verification?

The usual failure is not dramatic at first. It looks like a rejected application, a wrong tax invoice, a missing conversion, a duplicate lead, a broken report, or a workflow that silently stops. Those small failures become expensive when nobody notices them until month-end reporting, filing day, or a customer escalation.

What evidence should you keep after making the change?

Keep enough evidence to reconstruct the decision later. For a compliance topic, that usually means the application reference number, registration certificate, invoice sample, return acknowledgement, payment challan, notice reply, or source link checked on the day of filing. For a website, campaign, analytics setup, or automation, keep the before-and-after screenshot, test submission, dashboard export, webhook log, and the exact setting that changed.

This matters because most business fixes are revisited months later, when nobody remembers the original reason. A short evidence trail makes audits faster, handovers cleaner, and vendor conversations more precise. It also keeps the advice in this guide tied to your real operating context instead of becoming a generic checklist that gets copied without review.

Date checked: record when the official source, dashboard, or portal screen was reviewed.
Business context: note the entity, state, product, campaign, property, or workflow affected.
Proof of action: save the acknowledgement, report export, test result, or live URL.
Owner: assign one person to re-check the item when rules, tools, or business volume change.

Repeat this check whenever rules, platform settings, business volume, or ownership changes.

Which next step should you take after reading this?

Turn the article into one action list. Mark what is already true, what needs proof, and what needs expert review. If you want to go deeper, compare this guide with GST Registration, and GST Registration Process India. Then update the decision only after the official source and your own records agree.

GST Registration Forms List: REG-01 to REG-31 Explained (Complete 2026 Reference)