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Company Stamps and Seals in India: Common Seal, Rubber Stamp, and e-Stamping Explained

India uses the word "stamp" for three unrelated things, and paperwork regularly stalls because someone brought the wrong one. Here is the map.

The three are: the common seal (a corporate law formality, now optional), the rubber stamp (pure business convention, legally weightless), and stamp duty (a tax that determines whether your document is admissible in court). Confusing the third with the other two is the expensive mistake — a company that carefully stamps every invoice with its rubber stamp but leaves an agreement unstamped for duty has protected nothing and risked something real.

1. The common seal — optional since 2015

The Companies (Amendment) Act 2015 made the common seal optional. Where older law required the embossed seal on share certificates, powers of attorney and similar instruments, a company without a seal now executes them with the signatures of two directors, or a director and the company secretary. Most companies incorporated since simply never adopt one.

If your company does have a common seal — typically because it was incorporated before 2015 and the articles provide for one — check what those articles actually say. Some older articles require the seal for specified instruments and prescribe how it must be affixed. In that case the requirement is contractual, arising from your own constitution rather than the Act, and the cleaner fix is usually to amend the articles rather than to keep maintaining a seal you no longer need.

2. The rubber stamp — no law, all practice

The round or rectangular inked rubber stamp has no statutory basis, but Indian banking and administration run on it:

  • banks want the stamp on account forms, cheques deposited by companies, and board resolutions;
  • government offices, courts and tender processes expect stamped-and-signed documents;
  • invoices, purchase orders and delivery challans are stamped as a matter of course, often with "For [Company Name]" above a signature line and "Authorised Signatory" below it;
  • GST-related paperwork, e-way bill printouts and vendor onboarding forms attract the same expectation, again from counter practice rather than from the GST law itself.

That "For XYZ Pvt Ltd — Authorised Signatory" round stamp is the single most common Indian format. Structurally it's the round layout of the corporate seal template: company name curved around the top, "Authorised Signatory" or the city along the bottom arc, plain center. Blue and violet inks dominate. You can build it in the online seal generator in minutes, export a transparent PNG for digital paperwork, or SVG for a local stamp maker; the PDF stamping tool places it on digital invoices, and the background remover digitizes an existing stamp.

What to put on it

The conventional Indian company stamp is informative rather than decorative. In practice the useful elements are:

  • The registered company name exactly as on the certificate of incorporation, including "Private Limited" or "Limited" spelled as registered.
  • "Authorised Signatory" — this is what makes the stamp function as an execution block rather than a decoration.
  • Optionally the CIN or GSTIN. Including the GSTIN is increasingly common on invoice stamps because it saves the recipient a lookup.

A common error is stamping with a brand or trading name. The counterparty is verifying you against MCA or GST records, and those hold the registered name.

3. Stamp duty and e-stamping — a tax, not your stamp

"Stamping" a document in the legal sense means paying stamp duty under the Indian Stamp Act and state stamp laws — historically via stamp paper, now largely via e-stamping through the authorized system. This is a tax formality that affects whether an instrument is admissible in evidence. Your company rubber stamp has nothing to do with it and cannot substitute for it; conversely, duly e-stamped agreements don't need your rubber stamp to be valid.

Two practical consequences worth holding onto:

  • Duty is state-specific. The rate and the manner of payment depend on the state where the instrument is executed, and sometimes on where the property or subject matter sits. An agreement stamped correctly for one state may be under-stamped for another.
  • Under-stamping is curable but painful. An inadequately stamped instrument can generally be impounded and validated on payment of duty and a penalty — but that happens when you are trying to rely on the document, which is the worst possible moment to discover it.

If a document matters, confirm the duty position when it is signed, not when it is disputed.

Digital signatures (DSC)

India's IT Act 2000 gives legal recognition to digital signature certificates (DSC) issued by licensed certifying authorities. DSCs are mandatory for company filings with the MCA, tax returns and much of GST compliance — meaning every Indian company already holds the digital successor to the seal. A pasted stamp image on a PDF is visual convention, not a DSC; the difference is covered in electronic seal vs. electronic signature and are image seals legally valid?.

A DSC is issued to an individual, not to the company — it identifies a director or authorised signatory acting for the entity. That distinction matters when someone leaves: their DSC goes with them, and any filing authority tied to it needs to be reassigned.

Common mistakes

  • Assuming the rubber stamp does legal work. It evidences that the document passed through the company. Authority to bind comes from board resolution or delegation.
  • Treating the stamp as a substitute for stamp duty. Unrelated systems.
  • Letting the stamp image circulate freely. A clean transparent PNG of your "Authorised Signatory" stamp is exactly what a fraudster wants — see the seal file management guide.
  • Keeping an obsolete stamp in use after a name change or conversion. Pvt Ltd to Ltd, or a name change, means a new stamp.

FAQ

Is a common seal required for Indian companies? No — optional since 2015; two authorized signatures replace it.

Is the rubber stamp legally required on invoices? No statute says so, but banks and many counterparties expect it, so operating without one is impractical.

Does the company stamp satisfy stamp duty? No. Stamp duty is a state tax paid through stamp paper or e-stamping; the rubber stamp is unrelated.

Should the CIN or GSTIN go on the stamp? Neither is required. GSTIN is genuinely useful on an invoice stamp; CIN is more common on formal correspondence.

Can an LLP or proprietorship use the same style of stamp? Yes — the "For [Name] — Authorised Signatory" format is used across entity types. Match the wording to how the entity is actually registered.

Is a stamped and signed scan enough to enforce an agreement? It evidences agreement, but enforceability turns on proper execution and correct stamp duty. For anything material, use a DSC or a properly executed and duly stamped original.

This article is general information, not legal advice. Verify current requirements with the MCA, your state's stamp authority, or a qualified professional.