Why applications bounce
GST registration is free, online and — with clean documents — approved in about a week. Yet a meaningful share of applications come back with a query in Form REG-03 or an outright rejection. Almost every bounce traces to the same three causes: a premises proof that does not match the address typed in the application, a name mismatch between PAN and the other documents, and missing owner-consent papers for premises the applicant does not own.
This checklist covers what the portal actually asks for, entity by entity, and the matching rules that decide approval. Assemble everything before you start the application; the portal's 15-day window for completing a saved application punishes assembling as you go.
The core set every applicant needs
Four things are universal. First, the PAN of the business — the proprietor's personal PAN for a proprietorship, the entity's PAN for a firm, LLP or company; the GSTIN is built on it, so the legal name must match the PAN database letter for letter. Second, the authorised signatory's documents: photograph, PAN and Aadhaar. Third, proof of the principal place of business. Fourth, bank details — furnished within 30 days of registration if not at application.
Add a mobile number and email that the signatory actually controls: every OTP in the application and every notice afterwards routes through them. Using a consultant's number here is a mistake that outlives the engagement.
Entity-specific documents
Proprietorship: the proprietor's PAN, Aadhaar and photograph, plus premises and bank proof. There is no separate entity paper — the trade name is declared in the application itself.
Partnership firm: the partnership deed, PAN of the firm, photographs and KYC of all partners, and an authorisation letter naming the partner (or employee) who will act as authorised signatory. Unregistered deeds are accepted for GST; the deed evidences the firm's existence and the partners' identity.
LLP and company: certificate of incorporation, entity PAN, and a board resolution or authorisation letter appointing the primary authorised signatory (with their acceptance and specimen signature). Companies and LLPs must sign filings with a DSC, so have the signatory's digital signature ready before submission. Directors' or designated partners' KYC goes in as promoter details.
Premises proof — the section that decides your fate
Owned premises: any one ownership document — the latest property-tax receipt, municipal khata copy or the electricity bill in the owner's name. The name on the proof must be the applicant's; if the property is in a family member's name, you are in the consent-letter situation below, not the owned situation.
Rented premises: the rent or lease agreement plus the landlord's utility bill or ownership proof. If the agreement is unregistered where registration was required, or expired, expect a query — renew it first. Add the landlord's NOC where the agreement does not expressly permit business use or registration.
Consented premises (family property, shared space, no rent): a consent letter from the owner plus the owner's utility bill. Plain paper is generally accepted; stricter jurisdictions ask for notarisation. The consent letter's address must match the application's address field exactly — down to the floor and unit — because the field officer compares them at verification.
Special cases: co-working spaces usually issue a standard agreement plus NOC bundle — ask for it in the GST-ready format. For additional places of business, each address needs its own proof of the same standard.
Bank proof and Aadhaar authentication
Bank proof is one of: a cancelled cheque bearing the account holder's name, the first page of the passbook, or a bank statement extract showing name, account number and IFSC. The account should be in the business's name (proprietor's personal account is acceptable for a proprietorship). Details can be added within 30 days of registration, but doing it upfront avoids a follow-up compliance clock.
Aadhaar authentication is the fork in the processing road. Authenticate the authorised signatory's (and for individuals, the applicant's) Aadhaar during the application, and approval typically comes within about seven working days without a site visit. Skip or fail authentication, and the application routes to physical verification of the premises — adding weeks. There is no good reason to skip it if the Aadhaar-linked mobile is accessible.
After submission you receive an ARN to track. A query in REG-03 must be answered in REG-04 within seven working days — answer precisely and attach the corrected document; a second-round rejection means starting over.
Two scheme decisions are made inside the application itself, so decide them before filing. First, regular versus composition: the composition scheme's low flat rate suits small local B2C businesses but bars input credit, inter-state sales and e-commerce — most growing businesses stay regular. Second, the correct HSN/SAC codes for your goods and services: they seed your invoice format and returns, and sloppy codes at registration become recurring mismatches later.
E-commerce sellers deserve their own note: selling through operators like marketplaces requires registration regardless of turnover, and the marketplaces verify the GSTIN against the portal before listing goes live — the legal name, trade name and state on the GSTIN must match your seller-panel details exactly.
The matching rules that prevent rejection
Match one: legal name equals PAN record. The portal validates the name against the income-tax database; even a spacing difference in a firm name causes failure. Check your PAN card, not your memory.
Match two: application address equals premises proof address, exactly. Officers reject for unit numbers present in one and absent in the other. Write the address as the utility bill writes it.
Match three: signatory chain is complete. For entities, the authorisation document, the signatory's KYC and the DSC must all belong to the same person. A resolution naming one director and a DSC belonging to another is an instant query.
Once the GSTIN arrives, three small post-registration duties complete the setup: display the registration certificate at the principal place of business and the GSTIN on the name board, fix your invoice series for the financial year, and add the bank account within 30 days if you skipped it at application — the portal suspends registrations that never furnish one.
Get these three matches right, authenticate Aadhaar, and GST registration is a one-week formality. Get them wrong and it becomes a month of REG-03 correspondence — the entire difference is preparation.
Frequently asked questions
Is there any government fee for GST registration?
No — the GST portal charges nothing for registration. Any cost you incur is professional assistance, which buys you the document preparation and query handling that decide how fast the GSTIN arrives.
How long does GST registration take?
With successful Aadhaar authentication and clean documents, about seven working days. Without Aadhaar authentication the application goes to physical verification of the premises, which can stretch the timeline to about thirty days.
Can I register GST at my home address?
Yes. If you own the home, use your ownership/utility proof. If a family member owns it, add their consent letter and their utility bill. Home-based registration is routine — the address just has to be genuine and verifiable.
What happens after the GSTIN is issued?
Return obligations start immediately from the effective date — GSTR-1 and GSTR-3B (or the quarterly QRMP equivalents), including nil returns for months with no sales. Set up the filing calendar the same week you receive the certificate.
This guide is general information, not legal or tax advice for your specific facts. Engagements on ClearTLC are fulfilled by independent licensed professionals.