GST Documents by Business Type
The list changes with how your business is registered. Applying with the wrong set is the most common reason a GST application comes back.
Everyone needs these
- PAN of the business — and for a proprietorship that is the proprietor's own PAN
- Aadhaar of the applicant, with authentication
- Photograph of the proprietor, partners or directors as applicable
- Proof of the principal place of business — ownership document, or a rent agreement with the owner's NOC and a recent utility bill
- Bank details — a cancelled cheque or statement in the business name
- Email and mobile that you control, since verification is by OTP
What changes by structure
| Structure | Additional documents |
|---|---|
| Proprietorship | Nothing beyond the base list — the proprietor is the business, so their PAN and Aadhaar carry it |
| Partnership firm | Partnership deed, and an authorisation letter signed by the partners naming the authorised signatory |
| LLP | Certificate of incorporation, LLP agreement, and authorisation for the designated partner |
| Company | Certificate of incorporation, MOA and AOA, and a board resolution authorising the signatory |
| Society or trust | Registration certificate, the trust deed or bye-laws, and an authorisation from the governing body naming the signatory |
The authorisation is the part most often missing or wrong. It has to name a specific person, be signed by whoever has authority to appoint them, and be dated. A generic letter with no name, or one signed by the person authorising themselves, gets queried.
Written 5 September 2026. Government requirements and portal behaviour change — message us to confirm before you rely on any date or figure here.
Where applications actually fail
Rarely a missing document — those get asked for. What fails applications is inconsistency and address proof.
- Business name spelled differently across PAN, bank and registration documents. Pick the PAN version and match everything to it.
- Address proof not in the right name, or a rent agreement with no NOC from the owner.
- An electricity bill that is too old or in a previous occupant's name.
- Authorisation letter naming nobody, or naming someone who is not on the deed or the board.
- Bank account not in the business name for a registered entity.
Common questions
Send us your case
Tell us how the business is registered and we will send you the exact list that applies, rather than a generic one.
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Other GST work that comes up once you are registered.