First GST number — simple order of steps

The counter is covered with papers. PAN card, a photo, a cancelled cheque, a rent agreement for the shop, address proof that is not in your name. It is 10 pm on the night you decided to stop selling without a GSTIN because the yearly total, or a buyer, or an interstate consignment, made registration real. You do not need a forty-page theory. You need the order of steps so you do not start Part B before you have a TRN, or hunt for ARN before you submitted.

This is a first-time application order. It is not a way to stay unregistered while issuing GST invoices. If you are not yet liable and not choosing voluntary registration, you should not print a GSTIN. If you are liable, apply. Do not bill taxable supplies with a made-up number while you wait.

Step 1 — Confirm you are applying for the right reason

Liable because turnover crossed the threshold for goods or services in your state, or because a compulsory category applies (for example many interstate goods supplies), or voluntary because a buyer needs a GSTIN. Write that reason on a slip. You will type a similar idea in the form.

Open only https://www.gst.gov.in.

Step 2 — PAN, mobile, email, before any PDF upload

You need a PAN in the name that will be the legal name. Proprietor: your PAN. Partnership: the partnership PAN. Do not start with a relative’s PAN “because their Aadhaar OTP works”.

The mobile and email will receive OTPs for the rest of the life of this GSTIN. Use a number you hold at night, not the helper’s prepaid that changes every six months.

Path:

gst.gov.in → Services → Registration → New Registration

Choose taxpayer, the state of principal place, and the other first-screen details. Enter PAN, mobile, email. Complete OTPs. The portal gives a Temporary Reference Number (TRN). Write the TRN on paper. TRN is valid for a limited time. If you wander off for ten days, you may start this step again.

Step 3 — Log in with TRN and fill Part B in one sitting if you can

TRN login is not the final GSTIN login. It is only to finish the application.

Fill business details: constitution, trade name, commencement date. Pick the same commencement story you will tell if an officer asks. Do not backdate a commencement to hide earlier taxable supplies, and do not invent a future date to delay tax if you are already liable.

Principal place of business: the shop address that matches proof. Additional place is extra, not a substitute for principal place.

Promoters / partners as applicable. Authorised signatory: the person who will get OTPs for returns. For a small proprietorship that is usually you.

Bank: account number, IFSC, and proof. A mismatch here causes later bank-add pain.

Keep the form saved if the portal allows, but saved is not submitted.

Step 4 — Documents that actually upload

Typical set for a small shop: photograph, PAN, address proof for principal place, bank proof, and constitution document if you are not a simple proprietor.

Address proof is where first-time applications die. The name on the utility document, the rent agreement, and the applicant must line up in a way the officer accepts. If the shop is rented, a rent agreement plus owner NOC is a common pair — this is about GST address proof, not a rent-control fight. If the document is rejected, you will see a query. Answer on the portal. Do not apply a third time with a new TRN while a query is open unless you know the first ARN is dead.

File size and format errors are boring and real. Follow the portal’s size limits. Do not upload a dark WhatsApp photo of a cheque.

Step 5 — Aadhaar authentication when the form offers it

For many small applicants, Aadhaar authentication of the authorised signatory is the faster track. Keep Aadhaar linked to the mobile that will get the OTP. If Aadhaar fails, the application can still proceed on the other verification track, but it may take longer and may need biometric or extra steps as the portal then instructs. Do not buy a “guaranteed Aadhaar pass” from a cafe.

Complete the verification step the form shows. Submit. DSC or EVC as asked.

Step 6 — ARN, then wait without opening a fake tracking site

After submit you get an Application Reference Number (ARN). Mail and SMS should carry it. Save it.

Track only here:

gst.gov.in → Services → Registration → Track Application Status

Status will move from submitted toward approved, or toward a query. If there is a query, the clock is on you. Upload what they asked. Do not argue on WhatsApp with a person who is not the officer on the portal.

When approved, you receive a GSTIN and a registration certificate. Download the certificate from the portal after you get the new login (username is often the GSTIN). Path under Services → User Services for the registration certificate, as labelled on your dashboard.

Until GSTIN is issued, you do not have a GST number to print. If you were already liable, get local help for the gap. Do not print the TRN on invoices. TRN is not GSTIN.

Step 7 — First login as a taxpayer, then the first return

Username: GSTIN. Password: the one you set. Change it if it was temporary.

Add users only if you understand roles. Map a GST practitioner if you want one, through the official mapping, not by sharing OTP on the phone.

Open:

gst.gov.in → Services → Returns → Returns Dashboard

From the effective date of registration, returns become due for the periods the law requires. A new GSTIN is not a holiday from filing. If there is no business in the first period, file nil. Check this month’s official due dates.

First GSTR-1 reports outward invoices from the date you are registered and issuing tax invoices. First GSTR-3B pays the tax. Create a challan from Services → Payments → Create Challan if the cash ledger needs money.

Issue tax invoices with the new GSTIN from the effective date. Do not issue GST tax invoices for the period before GSTIN. Do not skip GST on taxable sales after GSTIN.

Simple order on one line you can stick on the wall

PAN and mobile ready → New Registration → OTPs → TRN on paper → Part B and documents → Aadhaar or other verification → Submit → ARN → Track on gst.gov.in → GSTIN certificate → Returns Dashboard → tax invoices and first return.

If any step fails, stay on the same ARN or the same TRN as the portal tells you. Parallel applications are how people get two GSTINs by mistake.

FAQ

What is the first thing I need before clicking New Registration?

PAN, a mobile and email you control, and a clear principal place of business. Then gst.gov.in → Services → Registration → New Registration. Without PAN you cannot start this taxpayer application.

Is TRN the same as GSTIN?

No. TRN is temporary, only to finish the form. GSTIN comes after approval. Invoice with GSTIN, not with TRN. Track ARN until the certificate is issued.

Do I file a return before the GSTIN is approved?

You file as a registered person after GSTIN. Before that, you should not be issuing GST tax invoices. If you were liable earlier, get local help. After GSTIN, open Returns Dashboard and file from the required period, including nil.

Aadhaar OTP failed. Should I abandon the ARN and apply again?

Usually no. Follow the portal’s fallback verification and queries on the same application. A second application on the same PAN and state is how duplicate GSTINs start. Get local help if you are stuck.

GST Atka is not a GSTN office. File on gst.gov.in. Rules change. Do not evade tax. Personal case: get local help.