CBIC Instruction 03/2025-GST: Registration Guide 2026

Reviewed: 27 October 2026 | Original CBIC instruction: 17 April 2025

Quick answer

CBIC Instruction No. 03/2025-GST, dated 17 April 2025, tells GST registration officers to avoid unnecessary document demands and speculative objections when examining FORM GST REG-01. It explains acceptable evidence for owned, rented, family-owned and shared business premises; sets out when clarification is justified; and describes scrutiny and physical verification. It superseded Instruction No. 03/2023-GST.

Important 2026 context: This instruction remains useful, but the registration framework was subsequently updated. Rule 9A and the optional Rule 14A simplified registration route were introduced with effect from 1 November 2025. Do not treat the instruction's original seven-day pathway as the only available route today. See the official CBIC instruction Official ↗ and GST Council's amendment summary ↗.

Why CBIC issued Instruction 03/2025-GST

The Central Board of Indirect Taxes and Customs (CBIC) received complaints about officers seeking documents not mentioned in the list attached to REG-01 and raising avoidable clarification notices. The instruction aims to balance two responsibilities: stopping fictitious registrations used for wrongful input tax credit and enabling genuine businesses to register without unnecessary obstacles.

It is an administrative instruction on processing applications, not an amendment to the eligibility requirements for GST registration. It does not remove lawful checks for identity, premises, business constitution or authenticity. Nor does it exempt a business from separate licences that may be legally required for its operations.

Principal place of business: documents officers should accept

The most useful part of the instruction is paragraph 6(A), which explains appropriate evidence of the principal place of business (PPOB). The correct documents depend on whether you own, rent or use the premises with permission.

For the affidavit route, follow the applicable stamp-paper requirements. Do not assume that an ordinary unsigned self-declaration is an acceptable substitute. The original instruction also rejects unnecessary demands for physical originals where uploaded evidence is adequate.

Example — home-based business: A proprietor operates from a house owned by a parent. Under the instruction, the proprietor may use a consent letter, the parent's identity proof and one acceptable ownership document. This is different from claiming that the proprietor personally owns the property.

Proof of constitution of business

Paragraph 6(B) addresses another common cause of repeated notices.

• Partnership firm: The partnership deed is the specified proof of constitution. Officers should not demand an Udyam certificate, shop-establishment certificate or trade licence merely to establish the firm's constitution.
• Society, trust, club, association, government department, statutory body and similar entities: Submit the relevant registration certificate or other proof of constitution required for the entity type.
• Companies and LLPs: Supply the entity-specific constitution and authorised-signatory information requested by REG-01 and the GST portal. The instruction's express partnership-deed clarification must not be misread as saying every entity needs only one document.

Other industry-specific licences may still be separately required by other legislation. The instruction is about documents for GST registration scrutiny, not permission to conduct a regulated business without licences.

Which GST registration queries are justified?

Officers should not issue queries based only on assumptions such as:

• A proprietor, director or authorised signatory living in another city or state.
• Speculation that the proposed activities cannot be conducted from the declared premises.
• A bare assertion about the HSN classification or saleability of goods without reference to a relevant deficiency in the application.
• Demands for irrelevant certificates that are not necessary to establish premises or constitution.

However, not every query is prohibited. A REG-03 notice may be appropriate where uploaded evidence is illegible or incomplete, an address conflicts with its supporting document, the address is vague, or a GSTIN connected to the applicant's PAN is cancelled or suspended and an explanation is necessary. Where a document outside the indicated list genuinely needs to be sought, the instruction requires approval of the concerned Deputy/Assistant Commissioner.

Example — address mismatch: If REG-01 says Plot 45 but the electricity bill clearly identifies Plot 54, an officer may reasonably ask for clarification. This differs from a speculative objection to a home-office address without supporting facts.

Processing timelines: original instruction versus later rules

Instruction 03/2025-GST explained the standard and physical-verification channels in April 2025. Subsequently, Notification 18/2025-Central Tax, dated 31 October 2025, introduced additional electronic and simplified routes effective 1 November 2025. The applicable route depends on the applicant's facts, portal selection, authentication and risk checks.

Do not promise a three-day GSTIN to every applicant. Incomplete filings, authentication steps, risk selection, clarification notices and physical verification can affect the route and time involved. See the GST Portal registration manual Official ↗.

Rule 14A: who can choose simplified GST registration?

The simplified option under Rule 14A is relevant to applicants whose declared monthly output tax liability on supplies to registered persons (B2B) does not exceed ₹2.5 lakh, subject to the full rule and portal conditions. This is not a ₹2.5 lakh turnover limit and should never be presented as one.

Key conditions described by the GST Council and GST portal include:

• It is an option, not mandatory for every eligible taxpayer.
• Aadhaar authentication is required to use the option.
• The portal does not permit more than one Rule 14A registration under the same PAN within a state/UT.
• Registration may be granted electronically under the prescribed three-working-day route after authentication.
• Withdrawal from the option follows the prescribed FORM GST REG-32 / REG-33 mechanism.

Illustration: A business expects B2B taxable supplies of ₹10 lakh in a month attracting an illustrative 18% GST. The estimated monthly output tax on those B2B supplies is ₹1.8 lakh, which is below ₹2.5 lakh. That mathematical result alone does not establish eligibility: the applicant must meet the other conditions and correctly select the option.

If expected liability may exceed the permitted level or the business model does not fit the option, assess ordinary registration instead of selecting simplified registration solely for speed.

How to apply for GST registration: practical checklist

1. Open gst.gov.in Official ↗ and select Services → Registration → New Registration.
2. Complete Part A of REG-01 with the required PAN, state, mobile number and email address. Verify the OTPs and generate your Temporary Reference Number (TRN).
3. Return with the TRN and complete Part B: business details, promoters, authorised signatory, principal place of business, goods/services and applicable declarations.
4. Choose the correct premises-possession category and upload legible documents matching that category.
5. Review the portal's Rule 14A option and Aadhaar authentication requirements; select the simplified route only when eligible.
6. Verify details, complete signing or e-verification using the method applicable to the entity, and submit.
7. Save the Application Reference Number (ARN) and monitor status under Services → Registration → Track Application Status.
8. If REG-03 is issued, read the exact reason and answer in FORM GST REG-04 before the displayed deadline. Retain the acknowledgement and submitted documents.

The application must accurately reflect the actual business; an instruction against unnecessary officer queries is not a licence to submit false or mismatched information.

What happens if REG-03 is not answered?

Failure to respond in the prescribed period can lead to rejection in FORM GST REG-05. But the instruction does not state that rejection occurs automatically without an officer's decision. It requires reasons to be recorded and an electronic rejection communication. The applicant should therefore monitor the portal and preserve notice dates and proof of any reply.

If a response is factually disputed, organise the documents, answer each objection separately and refer to the relevant paragraph of Instruction 03/2025-GST. Avoid merely replying that an officer is not allowed to ask questions.

What if the officer demands unnecessary documents?

Instruction No. 04/2025-GST, dated 2 May 2025, establishes a grievance mechanism for applicants whose ARN falls under Central jurisdiction. An applicant may write to the email address publicised by the appropriate CGST Zone, including the ARN, jurisdiction and a concise description of the objection. The zonal office can forward complaints relating to State jurisdiction to the appropriate state authority, with a copy to the GST Council Secretariat.

Take these steps before escalating:

1. Keep a PDF or screenshot of the REG-03 notice and relevant upload acknowledgements.
2. Identify why the requested document or objection conflicts with the instruction, citing the exact paragraph.
3. Submit any required REG-04 response on time; do not assume a complaint automatically extends the statutory deadline.
4. Use the officially published zonal grievance contact rather than a guessed email address.
5. Preserve ARN, date of complaint and the response received.

See the GST Council's summary of Instruction 04/2025-GST ↗.

Government fees and professional assistance

The GST portal does not ordinarily charge a government application fee for a standard GST registration. Separate charges may arise for professional assistance, documents, notarial execution or a DSC where applicable. These are not GST registration government fees.

TaxQue can help review the application, prepare the supporting documentation and assist with permitted clarifications. For the verified service offering, see TaxQue GST Registration. Government approval remains outside any service provider's control.

Common GST registration mistakes

• Wrong premises category: uploading an ownership document as though it proves a tenant owns the premises.
• Unregistered lease without lessor ID: overlooking the specific documentary combination described in the instruction.
• Unclear consent letter: omitting the owner's identity or premises information.
• Mismatched address: using a utility document for a different unit, plot or building without explanation.
• Assuming all queries are illegal: officers can seek clarification for genuine material deficiencies.
• Confusing tax liability and turnover: the Rule 14A threshold concerns monthly B2B output tax liability, not sales value.
• Assuming every registration is approved in three days: processing differs by application route.
• Ignoring a REG-03 notice: grievance submission is not a replacement for a timely portal response.

Conclusion

CBIC Instruction 03/2025-GST gives genuine applicants a practical way to understand which premises and constitution documents should ordinarily be sufficient, and which clarification requests may be improper. In 2026, readers must also account for the later Rule 9A and Rule 14A electronic registration pathways and the grievance procedure under Instruction 04/2025-GST. Prepare accurate documents, choose the correct portal option, and track every notice promptly.

For help preparing a GST application or responding to a clarification, explore TaxQue's GST registration service.

Official sources and references

1. CBIC — Instruction No. 03/2025-GST (17 April 2025), primary source Official ↗.
2. GST Council — October 2025 newsletter: Notification 18/2025-Central Tax, Rules 9A and 14A ↗.
3. GST Portal — Apply for Registration: Normal Taxpayer, including Rule 14A Official ↗.
4. GST Council — May 2025 newsletter: Instruction 04/2025-GST grievance process ↗.

Disclaimer: General educational information reviewed on 27 October 2026, not a guarantee of registration, approval time or legal outcome. The applicable rules and portal workflow should be confirmed for each application.