GST registration gives an eligible person a state-specific GSTIN and registration certificate. A person may need to register after crossing the applicable aggregate-turnover threshold or when a compulsory-registration provision applies. The application is filed online in Form GST REG-01. Aadhaar or biometric verification, document review, queries and physical verification can affect processing time.
Introduction
GST registration is the process through which a business or other eligible person obtains a Goods and Services Tax Identification Number (GSTIN) for a State or Union Territory. Registration allows the person to collect GST when required, issue GST-compliant invoices, file returns and claim eligible input tax credit subject to the law.
Registration is not based only on turnover. The answer can change with the nature of supply, State or Union Territory, whether the applicant supplies goods or services, inter-State transactions, e-commerce activity, reverse-charge liability and other compulsory-registration provisions.
This guide is a practical overview. GST law, notifications and portal procedures change, so confirm the current position for your facts before filing.
Quick Highlights
| Point | Details |
|---|---|
| Application | Form GST REG-01 on the GST Portal |
| Registration scope | State/Union Territory specific; separate registrations may be required where supplies are made from more than one State/UT |
| Government application fee | No government fee for filing a normal GST registration application on the common portal |
| Typical departmental timeline | CBIC's citizen charter indicates 7 days where Aadhaar is authenticated and 30 days where Aadhaar is not opted for, fails, or physical verification is required |
| Main output | GSTIN and registration certificate in Form GST REG-06 |
| Important caution | Thresholds and compulsory-registration exceptions depend on facts and notifications |
| After approval | Bank details, invoicing, returns, tax payment, records and registration updates may be required |
Key Takeaways
- Calculate aggregate turnover on an all-India PAN basis, not outlet by outlet.
- Check compulsory-registration provisions even when turnover is below the normal threshold.
- A person dealing exclusively in wholly exempt or non-taxable supplies may not be liable under Section 23.
- Apply within 30 days after liability arises; casual and non-resident taxable persons generally apply at least five days before business begins.
- Keep the legal name, PAN, constitution and address consistent across the application and supporting documents.
- Aadhaar, biometric or document verification may be required, and the officer may conduct physical verification.
- GST registration has no normal government application fee, but professional assistance is separately chargeable.
- Registration creates continuing obligations; it is not a one-time certificate with no follow-up.
What Is GST Registration?
GST registration identifies a person under the Goods and Services Tax system. An approved applicant receives a 15-character GSTIN linked to its PAN and the relevant State or Union Territory.
Registration may be mandatory under Sections 22 or 24 of the Central Goods and Services Tax Act, 2017, or voluntary under Section 25(3). A voluntarily registered person generally assumes the same compliance obligations as another registered person.
Registration does not by itself confirm that every supply is taxable, that every purchase qualifies for input tax credit, or that the applicant may use the composition scheme. Those questions require separate analysis.
Objective of Registration
GST registration enables an eligible person to:
- Report taxable outward supplies under the correct GSTIN
- Collect and pay GST where legally required
- Issue tax invoices or bills of supply, as applicable
- Claim eligible input tax credit subject to statutory conditions
- Complete customer, marketplace, tender or vendor onboarding where a GSTIN is legitimately required
- Maintain a traceable tax and return-filing record
Who Should Apply?
Apply when either the applicable turnover threshold is crossed or a compulsory-registration rule applies. Common applicants include proprietors, partnership firms, LLPs, companies, trusts, societies, Section 8 companies, professionals, traders, manufacturers, service providers and e-commerce participants.
Registration is generally required in each State or Union Territory from which the person makes taxable supplies and is liable to register. Merely having customers in another State does not by itself answer where registration is needed; the place from which supplies are made and any fixed establishment matter.
Turnover thresholds
The following are practical headline thresholds, not a substitute for a fact-specific check:
| Applicant profile | General threshold position |
|---|---|
| Supplier of services or mixed supplies | Generally ₹20 lakh aggregate turnover; ₹10 lakh in Manipur, Mizoram, Nagaland and Tripura |
| Person engaged exclusively in supplying goods | Up to ₹40 lakh where the higher threshold notification applies; otherwise ₹20 lakh |
| Voluntary applicant | May apply below the threshold, but ongoing GST obligations begin after registration |
“Aggregate turnover” is calculated across India for all persons with the same PAN and includes taxable supplies, exempt supplies, exports and inter-State supplies, while excluding GST and cess. Special rules and notifications can change the result.
Compulsory-registration cases
Section 24 lists categories that can require registration irrespective of the normal threshold. Examples include:
- Casual taxable persons making taxable supplies
- Non-resident taxable persons making taxable supplies
- Persons required to pay tax under reverse charge in specified cases
- Persons required to deduct tax under Section 51 or collect tax under Section 52
- Agents making taxable supplies on behalf of other taxable persons
- Input Service Distributors
- Certain e-commerce operators and suppliers using e-commerce operators
- Persons supplying specified online information and database access or retrieval services from outside India
- Other notified persons
Exemptions and later notifications modify some of these categories. For example, certain small service suppliers making inter-State supplies or supplying through e-commerce platforms have received threshold-based relief, subject to conditions. Do not rely on the bare Section 24 list without checking applicable notifications.
Who may not be liable?
Section 23 states that the following are not liable to registration for those activities:
- A person engaged exclusively in supplies that are wholly exempt or not liable to GST
- An agriculturist, to the extent of supply of produce from cultivation of land
- Other classes exempted by notification, subject to their conditions
An applicant with both exempt and taxable activities needs a separate review. A customer request for a GSTIN does not create a statutory liability if the law does not require registration, although voluntary registration may be considered after understanding its consequences.
Eligibility and Pre-Application Checks
Before applying, confirm:
- The correct PAN and legal name of the applicant
- The constitution of business: proprietorship, partnership, LLP, company, trust, society or another form
- The State/UT and principal place from which supplies are made
- The date on which liability arose
- Aggregate turnover for all registrations under the PAN
- Nature of goods and services and suitable HSN/SAC details
- Whether compulsory registration, an exemption or a special registration category applies
- Whether regular or composition taxation is appropriate and available
- Authorized signatory and signing method
- Access to the registered email address and Indian mobile number for OTPs
Benefits and Responsibilities
Registration may support lawful tax collection, input tax credit, interstate operations and customer onboarding. It also creates responsibilities.
A registered person may need to file returns even during a nil-activity period, pay tax and interest on time, issue correct invoices, reconcile records, maintain books, report changes and respond to notices. Voluntary registration should therefore be a considered decision rather than a document obtained only for appearance.
Documents Required
The GST Portal selects attachments according to applicant type and answers entered in Form GST REG-01. The official portal checklist should be checked immediately before filing.
Common information and documents
- PAN of the applicant, or PAN of the proprietor for a proprietorship
- Active email address and Indian mobile number of the primary authorized signatory
- Photograph of the proprietor, promoters, partners, directors, trustees or authorized signatory, as prompted
- Proof of constitution of business
- Proof of principal place of business and each additional place, if any
- Authorization letter or board/partner resolution for the authorized signatory
- Details of promoters, partners, directors, trustees or managing committee members
- Description and HSN/SAC details of principal goods or services
- State-specific registration details, where requested
By applicant type
| Applicant | Typical constitution and authority documents |
|---|---|
| Proprietorship | Proprietor's PAN and identity details; no separate incorporation certificate |
| Partnership firm | Partnership deed, firm PAN, partner details and authorization |
| LLP | Certificate of incorporation, LLP agreement where requested, LLP PAN, designated-partner details and authorization |
| Company or Section 8 company | Certificate of incorporation, company PAN, director details and board authorization/resolution |
| Trust | Trust deed or registration document, trust PAN, trustee details and authorization |
| Society, club or association | Registration certificate or constitution document, PAN, managing-committee/member details and authorization |
Proof of place of business
Depending on occupancy, the portal may ask for documents such as:
- Property tax receipt, municipal khata, electricity bill or ownership document for owned premises
- Valid rent/lease agreement with supporting ownership or utility proof for rented premises
- Consent letter with supporting premises proof for consent/shared premises
- Government allotment or similar document where applicable
Ensure the address entered in the form matches the evidence. Blurred, expired, incomplete or contradictory documents are a common cause of queries.
Bank details
Bank-account details are generally furnished after grant of GSTIN through a non-core amendment. Rule 10A prescribes a time limit linked to the date of registration and the due date of the first applicable return. Keep a bank statement or cancelled cheque in the registered person's name ready.
Step-by-Step Registration Process
- Check liability and category. Confirm the State/UT, effective date, threshold position and whether the applicant is a normal taxpayer, casual taxpayer, non-resident taxpayer, ISD, TDS/TCS applicant or another category.
- Start Part A of Form GST REG-01. Use the GST Portal's New Registration service and enter PAN, legal name, State/UT, district, email and mobile number.
- Verify OTPs and obtain the TRN. Use the Temporary Reference Number to reopen and complete Part B.
- Complete business details. Enter trade name, constitution, commencement and liability dates, promoter/partner details, authorized signatory, places of business and goods/services.
- Upload supporting documents. Use the document type and size requested by the portal.
- Complete Aadhaar, biometric or e-KYC steps. The path depends on constitution, option selected and portal risk parameters.
- Verify and submit. Submit using DSC, EVC or another permitted mode. Companies and LLPs should follow the signing method required on the portal.
- Track the ARN. Save the acknowledgement and monitor the application on the GST Portal.
- Answer any notice accurately. If the officer requests clarification or documents, respond within the stated deadline.
- Download the certificate. After approval, download Form GST REG-06 and verify the legal name, trade name, addresses and effective date.
Aadhaar Authentication, Biometric Verification and Physical Verification
The registration application includes Aadhaar-authentication choices for specified persons based on the constitution of business. Portal risk parameters may route an applicant to OTP-based Aadhaar authentication, biometric authentication at a GST Suvidha Kendra, document verification or officer review.
If Aadhaar authentication is not selected, fails or cannot be completed, the applicant may need to upload permitted e-KYC documents and can be subject to physical verification of the principal place of business. The proper officer may also seek additional evidence or conduct verification where the application is flagged for review.
The applicant should ensure that:
- Name, date of birth and gender match Aadhaar and PAN records
- The selected promoter/partner and primary authorized signatory can complete the required verification
- The premises are genuine, accessible and supported by current documents
- Signage and business evidence are available if physical verification occurs
Do not assume that choosing Aadhaar authentication guarantees approval. It changes the verification route but does not cure incorrect facts or deficient documents.
Government Fee and Professional Fee
Government fee
There is no government application fee for filing a normal GST registration application on the GST common portal.
This should not be confused with:
- Advance tax deposit required from a casual or non-resident taxable person
- Stamp, notarisation, DSC or document-procurement costs incurred outside the GST application
- Tax, interest, late fee or penalty arising from past liability
Professional fee
A consultant may charge separately for applicability review, document checks, application preparation, HSN/SAC review, filing, query response and post-registration setup. Obtain a written scope showing:
- Work included and excluded
- Number of query responses included
- Whether DSC or document costs are extra
- Whether return filing is included after registration
- Taxes applicable to the professional invoice
Service Completion Time
CBIC's citizen charter indicates a service standard of:
- 7 days where Aadhaar is authenticated
- 30 days where Aadhaar authentication is not opted for, fails, or the applicant is selected for physical verification
These are departmental service standards, not a guaranteed delivery promise. Processing may take longer if documents are inconsistent, biometric or site verification is pending, the officer issues a notice, the applicant responds late, or the portal experiences disruption.
File early when registration is needed for an operational, customer or tender deadline.
Output Documents
After approval, the applicant should receive or retain:
- GSTIN
- Registration certificate in Form GST REG-06
- Effective date of registration
- Approved principal and additional places of business
- ARN and application acknowledgement
- Copy of the submitted application and attachments
- Copies of notices, replies and orders, if any
The certificate is downloaded electronically from the GST Portal. Verify it immediately and apply for amendment if an approved detail is incorrect.
When Registration Is Required
Registration should be assessed before crossing the applicable turnover threshold, starting an activity covered by compulsory registration, or beginning operations as a casual or non-resident taxable person.
A person liable under Section 22 or Section 24 generally applies within 30 days from the date liability arises. A casual taxable person or non-resident taxable person generally applies at least five days before commencing business.
If the application is filed within the prescribed 30-day period, the effective date can relate back to the date liability arose. A delayed application can change the effective date and create invoicing, tax and interest complications.
Compliance After Registration
After GSTIN is granted:
- Add bank-account details within the Rule 10A timeline
- Display the registration certificate at the principal and additional places of business
- Display the GSTIN on the name board at those premises
- Issue tax invoices or bills of supply in the prescribed form
- File the applicable returns, including nil returns where required
- Pay tax, interest and other dues within applicable timelines
- Maintain invoices, purchase and sales records, stock and input-tax-credit records
- Reconcile books, returns and auto-populated statements
- Report changes to core and non-core registration particulars through the correct amendment route
- Apply for a fresh registration if a change in constitution results in a new PAN
- Review whether e-invoicing, e-way bill, TDS/TCS, composition or annual-return requirements apply
Return type and frequency depend on taxpayer category, turnover and schemes such as QRMP. Do not use one generic filing calendar for every registered person.
Other Compliances Before and After Registration
GST registration does not replace entity, local, labour, import-export, food, professional-tax or sector-specific approvals. Depending on the business, also review:
- Company, LLP, partnership, trust or society registration
- Import Export Code for import/export activity
- Shops and Establishments registration
- FSSAI registration or licence for food businesses
- Professional tax, labour and payroll registrations
- Udyam registration where eligible
- E-invoicing and e-way bill applicability
- LUT or bond requirements for eligible zero-rated supplies
Can You Register Without a Consultant?
Yes. A normal taxpayer can apply directly on the GST Portal without appointing a consultant, and the portal provides official manuals and document checklists.
DIY filing is most suitable when the liability, State, constitution, premises documents, authorized signatory and tax category are straightforward. Professional review may be useful where:
- Turnover spans several entities or States
- Supplies include exempt, zero-rated or mixed activities
- Compulsory-registration provisions or exemptions are uncertain
- The applicant uses e-commerce platforms
- There are several places of business
- The liability date has already passed
- A notice, rejection or physical verification has occurred
A professional cannot guarantee approval. The applicant remains responsible for complete and truthful information.
Common Problems and Rejection Risks
- Legal name or PAN mismatch
- Wrong State, jurisdiction, constitution or reason for registration
- Incorrect date of liability
- Unsupported principal-place address
- Rent agreement, consent letter or owner evidence missing
- Blurred or outdated utility/property document
- Incorrect authorized signatory or missing authorization
- Aadhaar/PAN demographic mismatch
- Incorrect HSN/SAC or vague business description
- Missed clarification deadline
- Business not found or evidence unavailable during physical verification
How BlackPapers Can Help
BlackPapers can assist with applicability review, document-gap checks, Form GST REG-01 preparation, application filing, notice response and post-registration compliance setup. Scope, professional fees, government payments and recurring return-filing work should be confirmed in writing before engagement.
Frequently Asked Questions
1. Is GST registration mandatory below ₹20 lakh?
It can be. Compulsory-registration provisions may apply regardless of the normal turnover threshold. Notifications also provide relief for some categories, so the correct answer depends on the supply, State, e-commerce model and other facts.
2. Is the threshold ₹20 lakh or ₹40 lakh?
The general service/mixed-supply threshold is ₹20 lakh, subject to the lower threshold in specified States. A person engaged exclusively in supplying goods may use the higher ₹40 lakh threshold where the relevant notification applies; otherwise the limit may be ₹20 lakh. Always check the current State-specific position and exclusions.
3. Does GST registration have a government fee?
No government application fee is charged for normal registration on the GST Portal. Professional fees and external costs such as DSC or document preparation are separate. Casual and non-resident taxable persons may need to make an advance tax deposit.
4. How long does GST registration take?
CBIC's citizen charter indicates 7 days with Aadhaar authentication and 30 days where Aadhaar is not opted for, fails, or physical verification applies. Queries, incomplete documents and verification can extend the process.
5. Is Aadhaar authentication mandatory for every applicant?
The portal applies Aadhaar, biometric and e-KYC requirements according to the applicant's constitution, selection and risk parameters. A person who does not complete Aadhaar authentication may need e-KYC and can face physical verification and a longer review route.
6. Can a home address be used as the principal place of business?
It may be used if the business genuinely operates from that address and the applicant can provide the occupancy and address documents accepted by the portal. Local-use restrictions and other laws should also be checked.
7. Are bank details required with the initial application?
For a normal taxpayer, bank details are generally added after GSTIN is granted. They must then be furnished within the Rule 10A timeline through the portal.
8. Do I need separate GST registration in every State?
Registration is State/UT specific. A person who is liable and makes supplies from establishments in more than one State/UT may require a registration in each relevant State/UT. Customers located in another State do not automatically mean that an establishment exists there.
9. Can I obtain GST registration voluntarily?
Yes. Section 25 permits voluntary registration. Once registered, the person is generally subject to the provisions applicable to registered persons, including invoicing, record-keeping and return filing.
10. What happens if the officer asks for clarification?
Read the notice carefully and respond through the portal within the stated time with a direct explanation and supporting evidence. An incomplete or late reply can lead to rejection.
Related Guides
- GST Return Filing
- GST Annual Return Filing
- GST LUT Form
- GST Compliance Services
- Company Registration
- LLP Registration
- MSME Registration
Official Sources
Reviewed on 2 October 2026. Verify the latest law, notifications and portal advisories before filing.
- GST Portal: https://www.gst.gov.in/
- GST Portal manual for a normal-taxpayer registration application: https://tutorial.gst.gov.in/userguide/registration/Apply_for_Registration_Normal_Taxpayer.htm
- GST Portal registration document checklist: https://tutorial.gst.gov.in/cbt/registration/gstregistration/course/story_content/external_files/GST_Registration_Document_Checklist.pdf
- Central Goods and Services Tax Act, 2017, including Sections 22 to 25: https://cbic-gst.gov.in/hindi/CGST-bill-e.html
- CBIC registration rules: https://cbic-gst.gov.in/gst-registration-rules.html
- CBIC overview of registration thresholds and exemptions: https://cbic-gst.gov.in/pdf/01062019-GST-An-Update.pdf
- CBIC citizen charter for registration service timelines: https://cbic-gst.gov.in/aces/citizencharters.html
- GST Portal GSTR-1 manual: https://tutorial.gst.gov.in/userguide/returns/GSTR_1.htm
- GST Portal bank-account update manual: https://tutorial.gst.gov.in/userguide/registration/Non-Core_Fields.htm
Conclusion
GST registration begins with a liability check, not a form. Confirm the applicant's aggregate turnover, State/UT, type of supply, compulsory-registration provisions and exemptions before submitting Form GST REG-01. Clean constitution and address documents, accurate verification details and a timely response to portal queries improve the application process.
After approval, download and verify Form GST REG-06, add bank details within the applicable deadline, set up invoicing and returns, and keep registration particulars current.