Quick answer
- GST becomes mandatory around ₹40 lakh turnover for goods and ₹20 lakh for services (thresholds subject to change) — but inter-state sellers and most e-commerce sellers need it from day one (a narrow exemption exists for small within-state-only sellers of goods).
- Registration on gst.gov.in has no government fee and typically takes about 7 working days with Aadhaar authentication.
- Want a clean, first-attempt approval? WhatsApp us at 91155 52911.
A trader in Patiala's Adalat Bazaar loses a ₹3 lakh wholesale order because the buyer's accountant asks for a GST invoice he cannot issue. A freelancer gets her Amazon seller application bounced for the same missing number. GST registration is free and takes a week — the expensive part is not knowing when you need it.
Do you even need GST? The real thresholds
Registration is mandatory once your annual turnover crosses the threshold — but the threshold is not the whole story.
₹40 lakh
Goods — annual turnover threshold in most states (subject to change; lower in special-category states)
₹20 lakh
Services — annual turnover threshold in most states (subject to change)
₹0
Inter-state sellers of goods and most e-commerce sellers — GST compulsory regardless of turnover (narrow intra-state-only exemption exists)
Read that third card twice. Sell goods from Punjab to a buyer in Delhi, or list products on Amazon, Flipkart or Meesho, and the turnover threshold usually does not protect you — registration is generally compulsory from the first rupee. (Since October 2023 there is a narrow exemption for small sellers making only within-state supplies of goods via marketplaces using an enrolment number — but conditions apply, and many marketplaces still ask for a GSTIN.) This single rule catches more small sellers off guard than anything else in GST.
Why smart small businesses register voluntarily
Input tax credit: registered businesses claim back the GST paid on stock, equipment and even the shop's billed expenses — that is real money, not paperwork. Big buyers demand it: companies, government tenders and large distributors simply will not deal with unregistered vendors, because your missing GSTIN breaks their own credit chain.
Credibility: a GSTIN on your invoice and signboard signals a real, bankable business — it helps with current accounts, business loans and marketplace onboarding. For many Patiala traders, voluntary registration pays for itself with the first big client it unlocks.
Regular vs Composition: the trade-off in one table
The composition scheme (for turnover up to about ₹1.5 crore, subject to change) trades paperwork for restrictions. Choose deliberately — switching mid-year is messy.
| Regular scheme | Composition scheme | |
|---|---|---|
| Tax rate | Normal GST rates per item | Low flat rate on turnover |
| Input tax credit | Yes | No |
| Collect GST from customers | Yes, on invoice | No — pay from own pocket |
| Inter-state sales | Allowed | Not allowed (goods) |
| Returns burden | GSTR-1 + GSTR-3B, monthly/quarterly | Quarterly payment + one annual return |
| Best for | B2B, e-commerce, growth plans | Small local B2C shops and eateries |
Documents that make or break approval
Nine out of ten rejections we see are address-proof problems. Get this list right and approval is boring — exactly how you want it.
- 🪪PAN of proprietor / firmthe GSTIN is built on this PAN — details must match exactly
- 🆔Aadhaarwith a live mobile number — needed for OTP-based Aadhaar authentication
- 📷Passport-size photoof the proprietor or all partners/directors, JPEG as per portal size limits
- 🏪Business address proofown place: electricity bill; rented: rent agreement + owner's NOC + owner's bill — the #1 rejection point
- 🏦Bank proofcancelled cheque, passbook front page or statement showing name, account number and IFSC
The gst.gov.in application, step by step
Start a New Registration
On gst.gov.in: Services → Registration → New Registration. Choose Taxpayer and your state and district.
Fill Part A — get your TRN
PAN, mobile and email, verified by two OTPs. You receive a 15-digit Temporary Reference Number (TRN).
Log back in with the TRN
Complete Part B within 15 days: business details, promoters, principal place of business, goods/services with HSN codes, bank details.
Upload the documents
Photo, address proof, NOC if rented, bank proof — sized and formatted as the portal demands.
Complete Aadhaar authentication
OTP on the Aadhaar-linked mobile. Skipping it invites physical verification of your premises and a much longer wait.
Submit and note your ARN
Sign with EVC or DSC and submit. The Application Reference Number (ARN) is your tracking handle.
Receive your GSTIN
On approval, the 15-digit GSTIN and registration certificate (Form REG-06) arrive by email — download from the portal.
Day 1
Apply
Part A + Part B + Aadhaar authentication
Day 2–7
Officer review
Approval, or a query (REG-03) to answer within 7 days
~Day 7
GSTIN issued
Certificate downloadable; longer if physical verification applies
Want your GSTIN without a single rejection?
Send your documents on WhatsApp — we file it right the first time.After the GSTIN: your new duties
Registration is the start, not the finish. Regular-scheme businesses file GSTR-1 (sales) and GSTR-3B (summary + tax payment) monthly, or quarterly under the QRMP option for smaller turnovers. Composition dealers pay quarterly and file one annual return.
Two rules people forget: display the registration certificate at your premises and the GSTIN on your signboard, and put the GSTIN on every invoice with the correct format and HSN codes. Officers do check on inspection.
Mistakes that quietly cost money
⚠️
Common mistake: "no sales this month, so no return needed." Wrong — nil returns are compulsory, and the late fee builds per day, per return until you file. We have met traders whose accumulated late fees crossed the profit of the quarter.
Wrong HSN code: it drives the tax rate; a wrong code means wrong tax on every single invoice until someone notices — usually an officer. Sloppy address proof: a rent agreement without the owner's NOC and electricity bill is the classic REG-03 query. Ignoring the query deadline: a REG-03 unanswered within its window gets the application rejected, and you start over.
💡
Insider tip: complete Aadhaar authentication the same day you file Part B. Applications with clean Aadhaar auth sail through in about a week; those without it can sit in the physical-verification queue for a month.
A GST number is free. A GST number filed wrong costs you a rejection, a month, and sometimes the client you wanted it for.
How Sahayak Seva registers you
WhatsApp 91155 52911 with photos of your PAN, Aadhaar and address proof — that is genuinely all it takes to start. We check your documents against the officer's checklist, choose regular vs composition with you based on your actual customers, file Part A and Part B, complete Aadhaar authentication, answer any REG-03 query and send you the GSTIN and certificate on the same chat. After that, we can handle your monthly and nil returns so late fees never touch you.
Hindi, Punjabi or English — your choice, no sign-up needed. Sahayak Seva is a private service provider and is not affiliated with the GST Network or any government department.
