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Apply for GST Registration

GST Registration Online in India

GST registration gives your business a GSTIN, the 15-digit number that makes you a recognised taxpayer under India's Goods and Services Tax system. Once you cross the turnover threshold, or fall into one of the categories the law treats as compulsory, registering isn't optional. LegalDev's tax team handles the filing on the government portal, checks your documents before submission, and tracks the application through to certificate delivery.

Below is everything you need before you apply: who must register, the current turnover limits, what changed in the process this year, documents by entity type, fees, and the timeline you can realistically expect.

GST Return Filing  |  TDS Return Filing

Turnover Limit for GST Registration

Registration turns mandatory the moment your aggregate turnover in a financial year crosses the limit set for your category and state. These limits haven't changed since April 2019, and they still apply through FY 2026-27:

CategoryRegular category statesSpecial category states
Suppliers of goods₹40 lakh₹20 lakh
Suppliers of services (and mixed suppliers)₹20 lakh₹10 lakh

Special category states are Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland, Tripura, Sikkim, Himachal Pradesh, Jammu & Kashmir, and Uttarakhand.

What Counts Toward Turnover

Aggregate turnover is calculated PAN-wide, not branch-wise or state-wise. It includes all taxable supplies, exempt supplies, exports, and inter-state supplies, but excludes CGST, SGST, IGST, and cess. If your PAN runs businesses in three states, all three turnovers are added together to check whether you've crossed the limit.

Below the Threshold but Still Need to Register?

A handful of activities require registration regardless of turnover: inter-state supply, e-commerce selling, casual taxable persons, non-resident taxable persons, businesses under reverse charge, input service distributors, and TDS/TCS deductors. These are covered in detail in the next section.

Below the Threshold and Don't Need To?

You can still register voluntarily to claim input tax credit, issue GST-compliant invoices to B2B buyers, and look more credible to vendors who ask for a GSTIN before they'll deal with you.

Composition Scheme Alternative

If your turnover is under ₹1.5 crore (₹75 lakh in special category states), you can opt for the Composition Scheme instead of regular registration. You pay a flat 1% to 6% of turnover depending on your business type, file one quarterly return instead of monthly ones, but can't claim input tax credit or issue tax invoices.

Types of GST Registration

The Three (or Four) Taxes Under One Registration

TypeLevied byApplies to
CGST (Central GST)Central governmentIntra-state supply
SGST (State GST)State governmentIntra-state supply
IGST (Integrated GST)Central governmentInter-state supply and imports
UTGST (Union Territory GST)Union Territory administrationIntra-UT supply (in UTs without a legislature)

A single GSTIN covers all of these. You don't apply for CGST or SGST separately; the portal calculates which tax applies based on where the supplier and recipient are located.

Categories of GST Registration by Taxpayer Type

  • Regular taxpayer: the standard registration for most businesses above the threshold, with no turnover ceiling and full ITC eligibility.
  • Composition taxpayer: for small businesses opting into the fixed-rate scheme described above.
  • Casual taxable person: for someone supplying goods or services occasionally in a state where they have no fixed place of business, such as a vendor at a trade fair. Valid for 90 days, extendable.
  • Non-resident taxable person: for a foreign business or individual making taxable supplies in India without a fixed establishment here.
  • Input Service Distributor (ISD): a head office that receives tax invoices for input services and distributes the credit to its branches.
  • TDS deductor / TCS collector: government departments and e-commerce operators required to deduct or collect tax at source.
  • OIDAR service provider: non-resident suppliers of online information and database access services to Indian consumers.

Who Needs GST Registration

Beyond the turnover limits above, registration is compulsory, irrespective of turnover, for:

  • Businesses making inter-state taxable supplies
  • Casual taxable persons and non-resident taxable persons
  • Persons liable to pay tax under reverse charge
  • E-commerce operators, and sellers supplying through e-commerce platforms
  • Input service distributors and agents supplying on behalf of other taxable persons
  • TDS deductors under the Income Tax Act and TCS collectors
  • Suppliers of online information and database access or retrieval services from outside India
  • Anyone previously registered under an earlier indirect tax law (VAT, service tax, excise) who is required to migrate

What Changed in GST Registration in 2026

Under Rule 9A, low-risk applications with clean Aadhaar authentication now get fast-track GSTIN approval within 3 working days without manual officer intervention. Small businesses with projected monthly output tax under ₹2.5L can also register on self-declaration under Rule 14A.

This is the part most guides online still don't mention, because it's recent. The registration process itself changed meaningfully over the past year, and it's worth understanding before you apply, since it affects how fast you'll get your GSTIN.

Rule 9A: The 3-Day Fast-Track Approval

Under Notification No. 18/2025, the GST portal now runs every fresh application through a data-analytics and risk-parameter check the moment it's filed. If your application is flagged low-risk, no physical site visit and no manual officer review, the GSTIN is granted electronically within three working days.

Rule 14A: The Simplified Scheme for Small Taxpayers

Inserted through Notification No. 12/2026-GST with effect from 1 April 2026, this rule lets businesses whose projected monthly output tax liability on B2B sales is under ₹2.5 lakh, along with e-commerce sellers operating across multiple states, register largely on self-declaration. Physical verification before registration is skipped unless the system flags something. If your monthly B2B output tax later crosses ₹2.5 lakh, you file Form GST REG-32 to withdraw from the scheme, and once approved via Form GST REG-33, you continue on the same GSTIN as a normal taxpayer from the following month.

Biometric Aadhaar Authentication

Biometric Aadhaar authentication is still mandatory, but it's easier to complete. Every new applicant still goes through Aadhaar-based authentication. What's changed is that applicants flagged for biometric verification can now do it at a facilitation centre or GST Suvidha Kendra in their own state, instead of travelling to the jurisdictional office that used to require it. If Aadhaar authentication fails due to a technical error or a biometric mismatch, the case is routed for physical verification of the business premises by the jurisdictional officer.

Realistic Timelines Under the Current System

  • Low-risk, Aadhaar-authenticated applications: GSTIN within 3 working days
  • Standard applications with no red flags: around 7 working days
  • Applications requiring physical verification: up to 30 working days

For most first-time applicants, whether you land in the fast-track bucket or the standard one depends on how clean your Aadhaar authentication and documentation are on the first attempt, which is exactly where a filing error costs you the most time.

Benefits of GST Registration

  • Legal recognition as a supplier. A GSTIN establishes your business as a recognised taxable entity, which matters when you're bidding for contracts, opening a current account, or dealing with larger companies that only work with GST-registered vendors.
  • Input Tax Credit. You can offset the GST you paid on business purchases against the GST you collect on sales, which lowers your net tax outflow instead of paying tax on the full sale value each time.
  • Interstate trade without restriction. Registered businesses can supply goods and services across state lines without the state-by-state friction that existed under the old VAT/CST system.
  • Access to e-commerce platforms. Amazon, Flipkart, and similar marketplaces require a valid GSTIN before onboarding any seller.
  • Composition Scheme eligibility. Small businesses under the turnover cap get to opt for lower, fixed-rate tax with quarterly filing instead of monthly compliance.
  • Eligibility for government tenders. Most state and central tenders list a valid GST registration as a mandatory bidding document.
  • Stronger standing with lenders. A GST certificate and consistent return-filing history are commonly requested during business loan underwriting.

GST Registration Fees

The government charges no fee to register on the GST portal itself; filing Form GST REG-01 is free for regular taxpayers. The only government charge that applies is for casual and non-resident taxable persons, who deposit an advance tax equal to their estimated liability for the registration period rather than a flat registration fee.

Where a fee does come in is professional assistance: correctly classifying your business, choosing the right HSN/SAC codes, structuring your application to land in the low-risk, fast-track bucket, and following up if the department raises a query. LegalDev's GST registration service covers document review, application filing, Aadhaar authentication support, and query resolution until your GSTIN is issued. See GST Registration pricing

Documents Required for GST Registration

Entity typeDocuments required
Sole ProprietorshipPAN and Aadhaar of the proprietor; passport-size photograph; bank account proof (cancelled cheque or statement); address proof of the business premises (electricity bill, property tax receipt, or rent agreement with NOC from the owner if rented)
Partnership Firm / LLPPAN of the firm/LLP; partnership deed or LLP incorporation certificate; PAN, Aadhaar, and photographs of all partners; authorised signatory's letter of authorisation; bank proof; business address proof
HUFPAN card of the HUF; PAN and Aadhaar of the Karta; photograph; bank proof; business address proof
Private Limited / Public Limited / One Person CompanyPAN of the company; Certificate of Incorporation; MOA and AOA; PAN, Aadhaar, and photographs of all directors; board resolution or authorisation letter for the signatory; bank proof; business address proof
Society, Trust, or ClubPAN of the entity; registration certificate; PAN and photograph of trustees or office bearers; bank proof; business address proof
Foreign Company / NRTPCertificate of incorporation or registration from the home country; tax identification number of that country; passport of the authorised signatory; Indian bank account; business address proof in India

Address proof for a rented premises requires a rent or lease agreement along with a No Objection Certificate from the property owner. For a self-owned premises, a recent electricity bill, property tax receipt, or municipal khata copy is enough. A residential address is acceptable; a separate commercial address isn't mandatory.

GST Registration Process

Step 1: Document and eligibility review. LegalDev checks your turnover, business category, and documents against current rules, including whether you're likely to qualify for Rule 9A fast-track or the Rule 14A simplified scheme.

Step 2: Part A of Form GST REG-01. PAN, mobile number, email, and state are submitted, and you receive a Temporary Reference Number (TRN) by OTP verification.

Step 3: Part B of Form GST REG-01. Business details, principal and additional places of business, bank account details, and the supporting documents from the table above are uploaded and digitally signed (DSC for companies and LLPs, EVC for others).

Step 4: Aadhaar authentication. The primary authorised signatory completes OTP-based Aadhaar authentication. If flagged for biometric verification, this is completed at a facilitation centre or GST Suvidha Kendra.

Step 5: Application Reference Number (ARN). Once submitted, an ARN is generated immediately, and this is what you use to track status on the portal.

Step 6: Processing and approval. Low-risk, Aadhaar-verified applications are approved electronically within 3 working days under Rule 9A. Others go through standard review (around 7 working days) or physical verification (up to 30 working days) if flagged.

Step 7: GSTIN and certificate issued. On approval, the GST Registration Certificate with your GSTIN is available for download from the portal, and LegalDev shares login credentials and the certificate with you directly.

If the department raises a query (Form GST REG-03), a response with clarification or additional documents is due within 7 working days, so keeping your paperwork ready before filing matters more than it used to now that most of the timeline is compressed.

GST Registration Timeline

ScenarioTypical time to GSTIN
Low-risk application, Aadhaar authenticated, no query raised (Rule 9A fast-track)3 working days
Standard application, no red flags7 working days
Application flagged for physical verificationUp to 30 working days
Casual or non-resident taxable personRegistration valid for 90 days from approval, extendable

The stage most applicants underestimate isn't government processing, it's getting Part B of the form and the supporting documents right on the first submission. A rejected or query-flagged application resets much of that timeline.

Penalties for Not Registering

Operating without GST registration when you're liable to register attracts a penalty of 10% of the tax due, subject to a minimum of ₹10,000. Where the department finds deliberate evasion, the penalty rises to 100% of the tax due. Separately, issuing invoices without a valid GSTIN, or collecting GST without being registered, carries its own penalty under the same 100%-of-tax-or-₹10,000 rule, whichever is higher.

Why LegalDev for GST Registration?

  • Filed and reviewed by professionals who track GST notifications as they're issued, not a generic template, so your application reflects the current Rule 9A/14A framework rather than a process that changed months ago.
  • One point of contact from document collection to certificate delivery, including Aadhaar authentication support and responding to any department query on your behalf.
  • Bundled next steps once your GSTIN is issued: HSN/SAC code classification, GST-compliant invoice formats, and a handover into monthly or quarterly return filing so you're not scrambling before your first due date.

Talk to a GST expert

Frequently Asked Questions

Not automatically. Registration turns mandatory only after turnover crosses Rs. 40 lakh a year for goods or Rs. 20 lakh for services (Rs. 20 lakh and Rs. 10 lakh in special category states like Manipur, Mizoram, Nagaland, or Sikkim). But three situations override the turnover limit: selling through Amazon, Flipkart, or any other marketplace, supplying goods or services across state lines, or falling under reverse charge. If none of these apply and you're under the threshold, you can operate without a GSTIN, though many small businesses register anyway to claim input tax credit or satisfy a B2B buyer who wants a GST invoice.

Registration on the government's GST portal itself is free; there's no official fee at any stage. What you pay for, if you hire a consultant, is document review, correct HSN/SAC selection, and help getting through Aadhaar authentication without a rejection. At LegalDev, that support costs Rs. 1,499 plus GST, with nothing added later regardless of how many clarification rounds your application needs.

Only if you're selling on your own website and staying under the turnover threshold, and even then it's a narrow window. The moment you list on Amazon, Flipkart, Meesho, or a similar marketplace, GST registration becomes compulsory regardless of turnover, because these platforms won't activate a seller account without a valid GSTIN. Selling through your own site without one is possible below the threshold, but most online sellers cross it quickly or need it anyway to get onto a marketplace.

No. GST registration is a tax record tied to your PAN for a specific business activity; it isn't reported to employers and doesn't appear in a standard background check. What can matter is your own employment contract: some companies restrict outside business activity or require disclosure of a side income, and that's a separate HR or contractual question, not a GST one.

For a clean application with Aadhaar authentication going through smoothly, approval typically comes within 24 hours. If your file gets flagged for biometric verification or a physical site visit, expect 7 to 15 working days. Since November 2025, small B2B suppliers with monthly output tax liability of Rs. 2.5 lakh or less can also use the Rule 14A fast-track route, which usually delivers a GSTIN within three working days.

It depends on your business structure. A proprietorship needs the owner's PAN, Aadhaar, a photo, and address proof. A partnership or LLP needs the deed or incorporation certificate, the firm's PAN, and PAN/Aadhaar for every partner. A private limited company needs the Certificate of Incorporation, company PAN, MOA, AOA, a board resolution, and the authorised signatory's Digital Signature Certificate. Whatever the structure, names on every document need to match PAN and Aadhaar exactly, since mismatches are the most common reason applications stall.

Registration becomes mandatory once your total service income crosses Rs. 20 lakh a year (Rs. 10 lakh in special category states), counting every client together. If you work only with foreign clients, that income qualifies as a zero-rated export, so you can stay unregistered below the threshold, though registering voluntarily lets you file a Letter of Undertaking (LUT) and claim refunds on GST you've paid. One thing overrides turnover entirely: if you pay for foreign SaaS tools like Canva, Adobe, or Zoom without an Indian GSTIN, reverse charge can trigger mandatory registration regardless of income.

Start by filling Part A of Form GST REG-01 with your PAN, mobile number, email, and state; OTP verification gives you a Temporary Reference Number (TRN). Log back in with the TRN within 15 days to complete Part B with your business and signatory details, then upload documents matched to your business type. Finish Aadhaar authentication, which most applicants complete online via OTP. Once verification clears, you get an Application Reference Number to track status, and on approval, your GST certificate with GSTIN.

Yes, without exception. Anyone selling through Amazon, Flipkart, Meesho, or any other e-commerce platform must register for GST regardless of turnover, because the standard Rs. 40 lakh/Rs. 20 lakh threshold doesn't apply to marketplace sellers. No platform will activate a seller account without a valid GSTIN on file.

Rs. 40 lakh a year in turnover for a business supplying goods, and Rs. 20 lakh for one supplying services. In special category states such as Manipur, Mizoram, Nagaland, or Sikkim, those limits drop to Rs. 20 lakh and Rs. 10 lakh. Turnover here means your total aggregate revenue across all business verticals under the same PAN, not just taxable sales, so exempt and export turnover count toward the limit too.

Yes. The GST portal is open to anyone, and there's no legal requirement to use a CA or consultant to file Form GST REG-01 yourself. The tradeoff is that document mismatches, wrong HSN/SAC codes, and incomplete Aadhaar authentication account for most rejections, and fixing a rejected application costs more time than getting it right the first time. Many small businesses do it themselves successfully; it just takes care at each step.

Fees vary, but a flat charge somewhere between Rs. 1,000 and Rs. 3,000 is typical for straightforward registration support, covering document review, HSN/SAC selection, and Aadhaar authentication assistance. Be wary of anyone charging a percentage of turnover for basic registration, since the government fee is zero and the actual work doesn't scale with your business size. LegalDev charges a flat Rs. 1,499 plus GST for the full process.

Construction and works contract services are taxed at 18% GST in most cases, with affordable housing projects taxed at a concessional rate. Registration is mandatory once turnover crosses Rs. 20 lakh, and because construction almost always involves inter-state material or labour sourcing, most contractors end up needing GST regardless of turnover. Reverse charge can also apply on services procured from unregistered suppliers, so it's worth getting HSN/SAC classification right at registration to avoid input tax credit disputes later.

It depends on the service. Goods Transport Agencies (GTAs) fall under a specific reverse charge structure where, in many cases, the recipient of the service pays GST instead of the transporter, which changes whether registration is mandatory at a given turnover. Delivery aggregators and courier businesses generally register once they cross the standard Rs. 20 lakh services threshold, or immediately if they operate through an e-commerce platform. Given how many transport-specific exceptions exist, it's worth confirming your exact category before assuming you're exempt.

Often, yes. Registering before you're legally required to lets you claim input tax credit on business purchases, issue GST-compliant invoices that bigger B2B buyers insist on, and build a compliance history that banks look at favourably for loans. The cost is ongoing: monthly or quarterly return filing, even in months with no sales. If your input costs are significant or your buyers are other registered businesses, voluntary registration usually pays for itself; for a small B2C operation with minimal purchases, it may not be worth the overhead yet.

Income from Upwork and similar platforms counts as export of services when paid in foreign currency, which makes it zero-rated, so registration only becomes mandatory once your total service income (Upwork plus any other clients) crosses Rs. 20 lakh a year. Below that, you can stay unregistered, but you'll need a GSTIN if you want to file a Letter of Undertaking to invoice without charging IGST upfront, or if you use paid foreign tools that trigger reverse charge. Upwork's own service fee doesn't attract Indian GST since Upwork isn't an Indian entity.

If your businesses operate in different states, or are genuinely separate verticals within the same state, you can hold multiple GSTINs against a single PAN. Each registration is filed separately through Form GST REG-01, using the same PAN but a distinct business vertical or state code. Every registration then has its own return filing obligation, so running multiple GSTINs multiplies your compliance workload even though the underlying PAN is shared.

You lose the ability to raise valid tax invoices or claim input tax credit for the period you should have been registered, on top of a penalty of 10% of the tax due, with a minimum of Rs. 10,000, for a genuine oversight. Where the department finds deliberate evasion, the penalty rises to 100% of the tax due. Operating past the point you're legally required to register is rarely worth the risk once you factor in the retroactive tax liability the department can assess.

A common myth is that a sole proprietorship is "too small" to need GST, but the same Rs. 40 lakh/Rs. 20 lakh threshold and marketplace-seller rules apply regardless of business structure. Another myth is that proprietors can't get GST without a separate business PAN; in reality, a proprietorship registers using the owner's own PAN, since the business and the individual aren't legally distinct. The documentation is also lighter than for a company or LLP: just the proprietor's PAN, Aadhaar, and address proof.

GST registration itself doesn't get reported to employers and isn't searchable in a standard background check, so registering doesn't automatically reveal a side business. Whether you're required to disclose it is a separate question governed by your employment contract, which may include a moonlighting clause or a conflict-of-interest policy. That's a matter to review in your own appointment letter, not something GST law dictates either way.

Part A of the registration, generating your Temporary Reference Number by entering your PAN, mobile number, email, and state with OTP verification, genuinely takes a few minutes. The rest of the process, completing Part B, uploading documents, and finishing Aadhaar authentication, takes longer since document upload and verification aren't instant. Treat the "5 minutes" framing as the time to start your application, not to finish it end to end.

Service providers register at Rs. 20 lakh turnover, half the Rs. 40 lakh threshold that applies to goods suppliers, because the goods threshold was raised separately in past GST Council revisions while the services limit stayed lower. Service businesses also need to select the correct SAC (Services Accounting Code) rather than an HSN code, and most professional and consulting services are taxed at a flat 18% regardless of the specific service offered.

Only if turnover crosses the threshold, or one of the mandatory-registration triggers applies, such as inter-state supply, e-commerce sales, or reverse charge liability. A large share of micro businesses genuinely fall below Rs. 40 lakh (goods) or Rs. 20 lakh (services) and can legally operate without a GSTIN. The mistake to avoid is assuming "micro" automatically means exempt; check your actual turnover and sales channels against the specific triggers rather than going by size alone.

The most frequent one is a name mismatch between uploaded documents and PAN or Aadhaar records, down to spelling and spacing. Others include blurry or oversized document uploads that fail the portal's automated checks, address proof without a No Objection Certificate on rented premises, an HSN or SAC code that doesn't match your actual business activity, and missing the 15-day window to complete Part B after generating your TRN, which forces a fresh application. A fifteen-minute document check before submission avoids most of these.

Eligibility isn't really a qualifying test, it's a set of triggers: has your turnover crossed Rs. 40 lakh (goods) or Rs. 20 lakh (services)? Do you sell through an e-commerce marketplace? Do you supply across state lines? Are you liable under reverse charge? A yes to any of these makes registration mandatory. If not, you're still eligible to register voluntarily; there's no minimum turnover or business size required to opt in early.

Regular registration covers most ongoing businesses that cross the standard threshold. Composition scheme registration suits small businesses with turnover under Rs. 1.5 crore that want simplified quarterly returns and a lower flat tax rate, in exchange for giving up input tax credit. Casual taxable person and non-resident taxable person registrations are temporary, valid for 90 days, meant for short-term or one-off supplies. Input service distributor registration applies to head offices distributing credit across branches. Most small businesses fall into either regular or composition.

Add a validated bank account to the portal within 30 days, or before filing your first GSTR-1, since the system now auto-suspends registrations that miss this window. Start issuing GST-compliant tax invoices with your GSTIN, correct HSN/SAC codes, and applicable tax rate shown separately. File GSTR-1 and GSTR-3B on schedule even in months with no sales, since nil returns are still mandatory. If you move goods worth more than Rs. 50,000 per consignment, register separately on the e-way bill portal too.

Confirm your entity is incorporated first, since GST registration needs a PAN tied to that entity. Gather the Certificate of Incorporation, company PAN, MOA/AOA, a board resolution naming your authorised signatory, and that signatory's Digital Signature Certificate. Decide between regular and composition registration based on projected turnover and whether you need input tax credit. Register voluntarily even below the threshold if you're billing other registered businesses, since many B2B buyers won't place an order without a GST invoice. Budget for ongoing monthly or quarterly return filing from day one.

You need a documented principal place of business, but it doesn't have to be owned property or a commercial office. A home address works if you can show a utility bill or property tax receipt in the owner's name along with a No Objection Certificate if you're not the owner. Co-working spaces and virtual offices are also accepted as long as the space provider issues a valid address proof and NOC for GST purposes.

Log into the GST portal and go to Services > Registration > Amendment of Registration. Non-core fields, such as email, mobile number, or bank account details, update instantly without department approval. Core fields, like your business name, principal place of business, or addition of a partner, need departmental review and can take a few working days to approve. Keep supporting documents ready for whatever field you're changing, since the portal often asks for fresh proof even for a minor correction.

You can legally raise GST invoices from the date your GSTIN is issued, not from the date you applied. For a clean application, that's typically within 24 hours of completing Aadhaar authentication; for one needing biometric verification or a site visit, 7 to 15 working days. Small B2B suppliers using the Rule 14A fast-track route can get a GSTIN, and start invoicing, within about three working days.

No. Hiring employees is an income tax and labour law matter (TDS, PF, ESI), not a GST trigger. GST registration is based on turnover and business activity type (e-commerce, inter-state supply, reverse charge), not headcount. A business with ten employees and turnover below the threshold still doesn't need to register, and a one-person operation that crosses the threshold does.

Mandatory from the first sale, regardless of turnover, because marketplace rules override the standard threshold entirely. You'll need your GSTIN before the platform activates your seller account, and most marketplaces also expect you to keep your HSN codes and tax rates configured correctly in their seller dashboard, since incorrect tax setup on the platform side can trigger compliance notices even when your GST filing itself is accurate.

Marketplaces typically ask for your GSTIN, the legal name matching your registration, your registered business address, and bank account details for settlements. Some platforms also verify your GST status directly against the government database during onboarding, so a GSTIN that's inactive, suspended, or under a different legal name than your seller account will get flagged and can delay account activation.

Yes, they're separate systems covering different things. GST is a tax on the supply of goods and services, tracked through your GSTIN, with its own monthly or quarterly returns. Income tax is a tax on your net profit or personal income, tracked through your PAN, filed annually as an ITR. Registering for GST doesn't exempt you from income tax filing, and filing income tax doesn't exempt you from GST registration if your turnover or business activity requires it; most businesses that need one eventually need both.

The application process itself is identical to registering a new business, since the GST portal doesn't distinguish between a brand-new operation and one that's been trading unregistered. What's different is the exposure: once you register, the department can look back at how long you were liable and assess tax, interest, and penalty for the period you should have been registered but weren't. Registering promptly, and where advisable disclosing the prior period voluntarily, generally results in a better outcome than waiting to be caught.

The most common causes are a name mismatch against PAN or Aadhaar, address proof missing a No Objection Certificate on rented premises, an HSN/SAC code that doesn't match the stated business activity, or blurry document uploads failing automated checks. A rejected application means starting over, not correcting the same filing, so review every document against your PAN and Aadhaar spelling before resubmitting, and make sure your business activity description matches the codes you've selected.

Yes, as long as none of the mandatory triggers apply to you: your turnover stays under Rs. 40 lakh (goods) or Rs. 20 lakh (services), you don't sell through an e-commerce platform, you don't supply across state lines, and you're not liable under reverse charge. The moment any of those conditions is met, continuing to operate without a GSTIN stops being a choice and becomes non-compliance, with the associated penalty exposure.

GST registration and the Import Export Code (IEC) from DGFT are separate requirements; one isn't a precondition for the other, but customs clearance checks both together, so you effectively need both to trade internationally. Exporters typically file a Letter of Undertaking (LUT) to ship goods or invoice foreign clients without paying IGST upfront, since exports are zero-rated under Section 16 of the IGST Act. Importers pay IGST at the point of customs clearance, which is then available as input tax credit.

Add up your aggregate turnover for the financial year, all taxable supplies, exempt supplies, and export turnover combined, across every business vertical under your PAN, before any GST is added on top. Compare that total against Rs. 40 lakh if you supply goods, or Rs. 20 lakh if you supply services (Rs. 20 lakh and Rs. 10 lakh respectively in special category states). The moment your running total crosses the applicable limit during the year, registration becomes mandatory within 30 days, not from the start of the next financial year.

Get GST Registration Online Through LegalDev

LegalDev's tax team handles GST registration applications for businesses across India, including document review before submission, Aadhaar authentication support, and follow-up until the GSTIN and certificate are issued. Get in touch for a free consultation.

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