Most founders who incorporate a Private Limited Company in Pune focus on getting the Certificate of Incorporation. What they often underestimate is the step that must follow immediately after — GST registration — and the ongoing compliance obligations that begin the moment a GSTIN is issued.
GST registration for a Private Limited Company is not optional once you begin operations. It is mandatory at specific turnover thresholds, mandatory regardless of turnover in certain transaction types, and practically essential for corporate client onboarding even when you are technically below the threshold. A company that raises its first invoice to a corporate client without a GSTIN will almost always be rejected at the vendor onboarding stage.
This guide covers the complete picture — when GST registration is mandatory, the documents required for a Private Limited Company, the step-by-step registration process, and the monthly and annual compliance calendar that follows. If you are still at the stage of deciding whether to incorporate, start with our Private Limited Company Registration Guide for Pune Founders.
When is GST Registration Mandatory for a Private Limited Company?
GST registration is governed by the Central Goods and Services Tax Act, 2017. The registration obligation arises either through crossing a turnover threshold or through the nature of the transactions your company undertakes — irrespective of turnover.
Threshold-Based Mandatory Registration
| Type of Supply | Threshold (Most States incl. Maharashtra) | Special Category States |
|---|---|---|
| Services | ₹20 lakh per year | ₹10 lakh per year |
| Supply of Goods | ₹40 lakh per year | ₹20 lakh per year |
| Mixed Supply (Goods + Services) | ₹20 lakh per year | ₹10 lakh per year |
Special Category States: Manipur, Mizoram, Nagaland, Tripura (lower thresholds apply). Maharashtra is NOT a special category state — the standard thresholds above apply.
Mandatory Registration Regardless of Turnover
These categories require GST registration from the first transaction, regardless of annual turnover:
Inter-State Supply of Goods
If your company sells goods to a buyer in a different state, GST registration is mandatory from the first transaction under Section 24 of the CGST Act, 2017. No turnover threshold applies.
E-Commerce Sellers (Amazon, Flipkart, Meesho, etc.)
Any company selling goods through an e-commerce operator must register for GST regardless of turnover. The e-commerce operator will also deduct TCS (Tax Collected at Source) under Section 52 of the CGST Act.
Reverse Charge Mechanism (RCM) Transactions
Where a company is the recipient of specified services and is liable to pay GST under reverse charge (e.g., legal services from advocates, import of services from overseas), GST registration is mandatory.
TDS Deduction under GST (Section 51)
Companies required to deduct TDS under the GST Act (government entities, PSUs, and notified entities) must be registered regardless of turnover.
Casual Taxable Person
If a company supplies goods or services in a state or territory where it does not have a fixed place of business (e.g., participating in an exhibition), it must register as a Casual Taxable Person before the supply.
The Practical Reality for Pune Companies — Below Threshold Does Not Mean Unregistered
Most corporate clients — IT companies, manufacturers, multinationals operating in Pune and Pimpri Chinchwad — require a GSTIN for vendor onboarding, regardless of your annual turnover. Without a GSTIN, your invoice will be rejected by their accounts payable team. For any Private Limited Company that plans to serve corporate clients, registering for GST voluntarily before the first invoice is the professional standard, not an optional step.
Documents Required for GST Registration of a Private Limited Company
The document requirements for a Private Limited Company are more extensive than for a proprietorship or partnership. Ensure all documents are current and valid before initiating the application on the GST portal.
Company Documents
Registered Office Proof
Authorised Signatory (Director)
Bank Account Details
Important: Bank Account Must be in the Company’s Name
The bank account submitted as proof during GST registration must be in the name of the Private Limited Company — not in the personal name of a director. If your company has not yet opened a business current account, open one first. Most banks in Pune require the GST registration or Shop Act licence as part of current account KYC — which creates a chicken-and-egg situation. The resolution: apply for GST registration using the CoI and address proof, get your GSTIN, and then use it for bank account opening.
Step-by-Step GST Registration Process on the GST Portal
GST registration is done entirely online at gst.gov.in through Form GST REG-01. With complete documentation, approval is typically received within 7 working days. Applications that require verification of the premises may take up to 30 days.
GST Registration Process — 8 Steps
Visit gst.gov.in → Register Now
Go to gst.gov.in → Services → Registration → New Registration. Select Taxpayer as the type. Fill Part A of Form GST REG-01 with the company’s PAN, email address, and mobile number.
OTP Verification
Verify the email and mobile number via OTP. A Temporary Reference Number (TRN) is generated. This TRN is used to access Part B of the application and is valid for 15 days.
Fill Part B — Business Details
Login using the TRN and fill Part B which includes: business details, principal place of business, additional places of business (if any), HSN/SAC codes for goods and services, bank account details, and details of promoters/partners/directors.
Select HSN / SAC Code Correctly
Select the correct Harmonised System of Nomenclature (HSN) code for goods or Service Accounting Code (SAC) for services. Incorrect HSN/SAC selection is one of the most common errors at this stage and can cause application rejection or compliance issues later.
Upload All Documents
Upload all documents listed in the previous section — CoI, PAN, MOA, AOA, address proof, director details, bank proof, and Board Resolution. Documents must be in PDF or JPEG format within the specified file size limits.
Submit with DSC of Authorised Director
For a Private Limited Company, the application must be submitted using the Digital Signature Certificate (DSC) of an authorised director. EVC (Aadhaar OTP) submission is not available for companies; DSC is mandatory.
GST Officer Verification
The application is assigned to a GST officer for verification. If the officer is satisfied, the registration is approved. If clarification is sought, a notice in Form GST REG-03 is issued and the applicant must respond within 7 working days via Form GST REG-04.
GSTIN Issued — Form GST REG-06
Upon approval, the GSTIN (GST Identification Number) is issued in Form GST REG-06. The GSTIN is a 15-digit number: the first 2 digits represent the state code (Maharashtra = 27), followed by the 10-digit PAN of the company, followed by entity-specific identifiers.
Special Cases: Export of Services, E-Commerce, and RCM
1. Export of Services — LUT is Essential
If your Private Limited Company provides services to clients outside India — IT services, consulting, software development, or any other service — these qualify as zero-rated supplies under Section 16 of the IGST Act, 2017. You can export services without paying IGST by filing a Letter of Undertaking (LUT) in Form RFD-11 on the GST portal before raising the first export invoice of each financial year.
LUT Filing Rule — Do This Before Your First Export Invoice
LUT must be filed at the start of each financial year (or before the first export invoice, whichever comes first). Without a valid LUT, you must charge IGST on export invoices and then claim a refund — which ties up your working capital. For IT companies and software exporters in Pune, this is the first thing to do after GST registration. Read our detailed guide for IT companies and startups in Pune for more on export compliance.
2. E-Commerce Sellers — TCS and Mandatory Registration
Private Limited Companies selling on Amazon, Flipkart, Myntra, or any other e-commerce platform must register for GST regardless of turnover. The e-commerce operator deducts TCS (Tax Collected at Source) at 1% on the net taxable supplies made through the platform. This TCS is available as input credit in your GST returns. Your GSTIN must be linked with the e-commerce platform’s seller portal.
3. Reverse Charge Mechanism (RCM)
Under RCM, the recipient of certain services is liable to pay GST instead of the supplier. Common RCM transactions for Private Limited Companies include: legal services from advocates, services from a GTA (Goods Transport Agency), import of services from outside India, and specified categories of services from unregistered suppliers. RCM liability must be self-assessed and paid directly by the company, even if the supplier has not charged GST.
Post-Registration GST Compliance Calendar
Once registered, your Private Limited Company has ongoing monthly and annual GST compliance obligations. Missing return due dates attracts a late fee of ₹50 per day per return (₹20 per day for nil returns), subject to a maximum of ₹10,000 per return per month.
| Return / Compliance | Frequency | Due Date | What It Contains |
|---|---|---|---|
| GSTR-1 | Monthly / Quarterly | 11th of following month | Details of all outward taxable supplies (sales) made during the period |
| GSTR-2B | Monthly | 14th of following month | Auto-populated ITC statement from suppliers’ GSTR-1 filings. Must be reconciled with purchase register before filing GSTR-3B. |
| GSTR-3B | Monthly | 20th of following month | Summary return of outward supplies, ITC claimed, and net tax liability for the period. Tax must be paid before or with this return. |
| GSTR-9 | Annual | 31st December | Annual return summarising all monthly returns for the financial year. Mandatory for all registered taxpayers with turnover above ₹2 crore. |
| GSTR-9C | Annual | 31st December | Reconciliation statement between annual return and audited financial statements. Mandatory if annual turnover exceeds ₹5 crore. |
E-Invoicing — Is It Mandatory for Your Company?
E-invoicing under the GST framework requires specified businesses to generate invoices through the Invoice Registration Portal (IRP) and obtain an IRN (Invoice Reference Number) before issuing invoices to B2B customers. As of the current threshold, e-invoicing is mandatory for companies with an aggregate turnover exceeding ₹5 crore in any preceding financial year.
If your Private Limited Company crosses this threshold, every B2B invoice must be generated through the IRP. Non-compliance results in the invoice being treated as invalid, and the buyer cannot claim ITC on a non-compliant invoice.
5 Common GST Mistakes Private Limited Companies Make in Pune
Registering after the first B2B invoice
The most common mistake. A company onboards a corporate client, issues the first invoice, and the client’s accounts team rejects it for missing GSTIN. GST registration should happen before the first invoice — not after.
Not filing LUT before export invoices
IT companies and service exporters in Pune regularly miss this. Without a valid LUT, the first export invoice charges IGST which then has to be claimed as a refund. Filing LUT takes 10 minutes on the GST portal and avoids this entirely.
Not reconciling GSTR-2B before claiming ITC
Input Tax Credit (ITC) can only be claimed on purchases that appear in GSTR-2B (auto-populated from suppliers’ GSTR-1 filings). Claiming ITC without GSTR-2B reconciliation leads to mismatches and GST notices under Section 61.
Missing GSTR-9 annual return
Many small companies with below ₹2 crore turnover assume GSTR-9 is not applicable. It is mandatory for all registered taxpayers with turnover above ₹2 crore. The late fee is ₹200 per day, subject to a maximum of 0.25% of turnover in the state.
Ignoring RCM liability on imports and legal services
Companies that use overseas software subscriptions (AWS, Google Workspace, Zoom, etc.) or receive services from foreign entities are liable to pay GST under RCM on the import of services. This is commonly missed and surfaces during GST audits.
Frequently Asked Questions
Can a newly incorporated Private Limited Company register for GST before starting operations?
Yes. Voluntary GST registration is permitted even before crossing the mandatory threshold or commencing operations. This is advisable for companies expecting corporate clients who require GSTIN at vendor onboarding. Registration also makes you eligible to claim ITC on purchases made after the effective date of registration, including pre-launch expenses.
What is the Composition Scheme and can a Private Limited Company opt for it?
The Composition Scheme under Section 10 of the CGST Act allows eligible taxpayers to pay GST at a flat rate on turnover instead of the standard rate, with simplified compliance. A Private Limited Company with turnover up to ₹1.5 crore can opt for the scheme. However, composition taxpayers cannot issue tax invoices, cannot claim ITC, and cannot make inter-state supplies. For most Private Limited Companies serving corporate B2B clients or making inter-state supplies, the regular scheme is more appropriate.
What is the QRMP scheme and who should use it?
The Quarterly Return Monthly Payment (QRMP) scheme allows eligible taxpayers with annual turnover up to ₹5 crore to file GSTR-1 and GSTR-3B quarterly instead of monthly, while making monthly tax payments through a challan. This reduces the number of return filings from 24 (monthly) to 8 (quarterly) per year. It is well-suited for smaller companies with consistent monthly turnover and minimal ITC mismatch issues.
Can GST registration be done at a registered office that is a residential address?
Yes. A residential address can be used as the registered office and principal place of business for GST registration purposes, provided adequate address proof (electricity bill or property tax receipt not older than 2 months) and an NOC from the property owner are provided. This is common for newly incorporated companies in Pune and PCMC that have not yet taken up a commercial office.
Is GST registration different for a company’s branch office in another state?
Yes. GST is a state-level registration. A Private Limited Company operating from multiple states — for example, with a registered office in Pune (Maharashtra) and a branch in Bengaluru (Karnataka) — must obtain a separate GSTIN for each state. Both registrations are linked to the same company PAN but carry different state codes (Maharashtra = 27, Karnataka = 29).
Related Guides on This Blog
→ Private Limited Company Registration in Pune — What Every Founder Should Know Before They Start
→ Annual ROC Compliance for Private Limited Companies — Complete Calendar and Penalties
→ CA for IT Companies and Startups in Pune — GST, Compliance and Everything In Between
→ Why Your CA Must Understand Your Industry — SaaS, IT, Manufacturing, Amazon FBA
→ The Premium Founder’s Playbook for Private Limited Company Registration in Pune
→ Virtual CFO Services — Complete Financial Management for Growing Companies