GST Registration
New registration, amendments, additional place of business and multi-state registration — prepared correctly the first time, so you avoid queries and rejection.
Goods and Services Tax (GST) registration gives your business a GSTIN, a 15 characters identifier tied to your PAN and your state. Once you hold one you can charge GST on your invoices, claim input tax credit on your purchases, and trade with the many businesses that will not deal with an unregistered supplier.
Above certain limits it is not optional. If your aggregate turnover crosses ₹40 lakh for goods or ₹20 lakh for services in a financial year, you must register — and turnover is counted across India on a single PAN, not state by state. Several situations require registration whatever your turnover: supplying to a customer in another state, selling through an e-commerce platform, or operating as a casual taxable person at an exhibition or seasonal site.
Trading unregistered when you were liable is expensive. Under Section 122 of the CGST Act the penalty is ₹10,000 or the tax due, whichever is higher, and you still owe the tax you should have collected across the whole unregistered period, plus interest. Most cases we see are not deliberate — a business crossed the threshold mid-year and nobody was watching the number.
Enquire about GST Registration
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If any of these describe where you are right now, this is the service you are looking for.
Your aggregate turnover has crossed ₹40 lakh for goods or ₹20 lakh for services in a financial year, counted across India on one PAN.
You supply goods or services to a customer in another state — inter-state supply requires registration at any turnover.
You sell through an e-commerce platform, or take online payments through your own site.
You are liable to pay GST under reverse charge on purchases from unregistered suppliers or on specified services.
You operate as a casual taxable person — an exhibition stall, a seasonal site, or a short project in another state.
You are below the threshold but want to register voluntarily, to claim input tax credit or to qualify as a supplier to registered businesses.
Everything handled, end to end
The full scope of the engagement, so there is nothing to discover halfway through.
Eligibility and threshold check
We confirm whether you are actually liable, and from what date — including whether the Rule 14A simplified route is open to you.
Document preparation and verification
We assemble the full set for your entity type and check each one before filing, which is where most rejections are avoided.
Application filing (GST REG-01)
Part A and Part B prepared and submitted, with your business activities and HSN or SAC codes classified correctly.
Aadhaar and biometric authentication support
We walk you through authentication and, where biometric verification is required, what to carry to the GST Suvidha Kendra.
ARN tracking and departmental follow-up
We monitor the Application Reference Number and chase the file rather than waiting for the portal to update.
Clarification and query response (GST REG-03 to GST REG-04)
If the officer raises a query we draft and file the reply within the window, with supporting documents.
GSTIN certificate handover (GST REG-06)
Your registration certificate, explained — what it says, where it must be displayed, and what it commits you to.
Post-registration compliance setup
Invoice format, return calendar and the first filing, so registration does not quietly become a compliance backlog.
What you'll need to hand over
Collected once, at the start. We tell you which of these apply to your case before you gather anything.
Every applicant
- 01PAN of the business or the proprietor
- 02Aadhaar of the proprietor, partners or authorised signatory, linked to an active mobile number
- 03Passport-sized photograph of the proprietor, partners or authorised signatory
- 04Proof of principal place of business — latest electricity bill, property tax receipt or municipal khata for owned premises; rent agreement plus a No Objection Certificate from the owner for rented premises
- 05Bank account proof — cancelled cheque, bank statement or the first page of the passbook showing name, account number and IFSC
- 06Mobile number and email address for the authorised signatory (OTP is sent to both)
Proprietorship
- 01PAN and Aadhaar of the proprietor
- 02A residential address may be used as the principal place of business
- 03A personal bank account is acceptable where the name matches the PAN
Partnership firm
- 01PAN of the firm
- 02Partnership deed
- 03PAN and Aadhaar of all partners
- 04Photograph of all partners
- 05Proof of appointment of the authorised signatory
- 06Registration certificate of the firm, if registered
Limited Liability Partnership (LLP)
- 01PAN of the LLP
- 02Certificate of Incorporation issued by the Ministry of Corporate Affairs
- 03LLP agreement
- 04PAN and Aadhaar of all designated partners
- 05Board resolution or equivalent authorising the signatory
- 06Class 3 Digital Signature Certificate of a designated partner
Private Limited Company
- 01PAN of the company
- 02Certificate of Incorporation issued by the Registrar of Companies
- 03Memorandum and Articles of Association
- 04PAN, Aadhaar and photograph of all directors
- 05Board resolution authorising the signatory
- 06Class 3 Digital Signature Certificate of a director
Companies and LLPs cannot sign the application with Aadhaar OTP — a Class 3 Digital Signature Certificate is mandatory. Portal uploads are limited to 100 KB per file, PDF or JPEG, so scans usually need compressing before they will attach.
5 steps, start to finish
Where the work actually goes, and what we need from you at each stage.
Eligibility and document check
We confirm the date your liability arose, pick the right registration type, and list exactly what you need to send.
Confirm with us
Application filed
GST REG-01 Part A validates your PAN, mobile and email; Part B carries your business details, place of business and documents. An ARN is generated on submission.
Confirm with us
Aadhaar or biometric authentication
Authentication is completed online, or in person at a GST Suvidha Kendra where biometric verification is required. This must happen within 15 days of submitting Part B.
Within 15 days
Departmental review
The officer either approves or issues a GST REG-03 notice seeking clarification. We draft and file the GST REG-04 reply if one arrives.
Varies with the query
GSTIN issued
Your GST REG-06 certificate is issued with the GSTIN. We hand it over with your invoice format and return calendar set up.
On approval
What to expect, and what it costs
Timelines are indicative and depend on departmental processing and how quickly documents come back to us. Message us on WhatsApp for a written quote.
Enquire on WhatsApp- Document collection and review
- Confirm with us
- Application filing and ARN generation
- Confirm with us
- Approval — Rule 14A simplified route, if eligible
- 3 working days
- Approval — standard, Aadhaar-authenticated
- 7 working days
- Approval — no Aadhaar authentication or physical verification ordered
- up to 30 days
Professional fees
On request
Common questions
The questions we are actually asked about GST Registration. If yours is not here, ask us directly.
Where Aadhaar authentication is completed and no physical verification is ordered, 7 working days. Small businesses eligible for the Rule 14A simplified scheme can be approved in 3 working days. Without Aadhaar authentication, or where the officer orders physical verification of your premises, allow up to 30 days.
Tamil Nadu is a normal category state, so the thresholds are ₹40 lakh of aggregate turnover for goods and ₹20 lakh for services. The lower special-category figures do not apply here. Aggregate turnover is measured across India on one PAN, so branches in other states count towards the same limit.
Within 30 days of becoming liable, under Section 25(1). The timing matters beyond the deadline itself: apply inside the window and your registration is effective from the date liability arose, so the period is clean. Apply late and it takes effect only from the date of grant, leaving the gap exposed.
Rejection almost always follows an unanswered GST REG-03 notice or a mismatch between your documents and the application — an address proof that does not match the premises, or a signatory who is not authorised. You can reapply. We would rather fix the cause first, because a second rejection on the same ground draws closer scrutiny.
Yes. GST is state-specific, so you register separately in every state or union territory from which you make taxable supplies, even under one PAN and one business name. A single registration does not cover a branch, warehouse or site in another state.
Yes, and it is often worth it. Voluntary registration lets you claim input tax credit on purchases and makes you a viable supplier to registered businesses that need the credit. The trade-off is real, though: once registered you carry the full return-filing obligation whatever your turnover.
The penalty under Section 122 is ₹10,000 or the tax due, whichever is higher. On top of that you owe the tax you should have collected for the entire unregistered period, plus interest, and you cannot claim input credit for that period. Wilful evasion is treated far more harshly than a missed threshold.
Companies and LLPs do — a Class 3 DSC is mandatory, as they cannot sign with Aadhaar OTP. Proprietorships and partnership firms can normally authenticate with Aadhaar OTP instead. We issue Class 3 certificates ourselves, so this does not have to become a separate errand.
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