If you have ever prepared a rent agreement, an affidavit, or a commercial lease, you have probably run into three words that get used as though they mean the same thing: stamping, registration, and signing. They do not. Confusing them is the single most common reason a document that looked perfectly fine causes a problem months later.
This primer separates the three, explains how electronic stamping works in practice, and sets out what actually happens when the duty is wrong. It is written for people creating agreements themselves — landlords, founders, HR teams, freelancers, procurement managers — rather than for lawyers.
The three things people confuse
Think of a document as passing three independent tests. It can pass one and fail another.
- Stamping is a tax event. A government levies duty on certain categories of instrument, and you evidence payment by attaching or generating a stamp of the prescribed value. Stamping says nothing about whether the terms are sensible or whether the signatures are genuine.
- Registration is a recording event. A registrar enters the document, or particulars of it, into a public record. Only specific instruments require it, and the requirement usually depends on the type and duration of the transaction.
- Signing is an execution event. It establishes that the named parties assented to the terms. This is where electronic signatures and Aadhaar eSign live.
A digitally signed agreement with no stamp duty paid is validly executed but potentially under-stamped. A properly stamped agreement that nobody signed is a stamped draft. You need each test passed on its own terms.
What eStamp actually is
Traditionally, stamp duty in India was paid by buying physical stamp paper of the right denomination and printing the agreement on it, or by franking at an authorised bank. Both approaches had obvious problems: counterfeit stamp paper, availability of the right denomination, and the requirement to be physically present.
Electronic stamping replaced the physical medium with a certificate generated through a central record. Instead of paper carrying value, you receive a uniquely numbered certificate showing the duty paid, the parties, the instrument description, and the date. Because the certificate is recorded centrally, its existence and value can be verified independently — which is precisely the fraud problem the older system could not solve.
Operationally, an eStamp certificate becomes page one of your agreement. When WeSignDeal procures the stamp for a supported agreement type and jurisdiction, the certificate is merged into the front of the executed PDF, so the stamp and the signed terms travel together as one document.
The three ways stamp duty gets handled
On WeSignDeal, depending on the agreement type and your account permissions, you may see up to three routes:
- The platform procures the stamp. You confirm the duty amount, pay it through checkout alongside service fees, and the eStamp is procured and merged. The stamp duty component is shown separately from platform fees, because it is collected for onward payment rather than as revenue.
- You arrange and upload it yourself. Where enabled for your account, you buy the stamp through your own channel and upload the certificate PDF. The platform provides the technical upload and merge facility only — it does not verify the amount, authenticity, timing, or legal sufficiency of what you upload.
- You continue without stamp duty processing. Appropriate where you have determined that no duty is payable on the instrument, or where you will arrange it separately.
All three routes share one feature that people consistently misread: the platform never decides what is legally payable. You select or confirm the amount and accept a declaration recording that decision, and the declaration text, version, and timestamp are stored on the agreement's audit trail. Our FAQ Centre covers the specific mechanics, and the allocation of responsibility is set out in the Terms and Conditions.
Why the amount is so hard to state generically
In India, stamp duty is a state subject. That single constitutional fact explains most of the confusion. Rates, the way duty is calculated, and even whether an electronic certificate is accepted for a given instrument are set state by state. For a residential lease, the calculation may depend on annual rent, the security deposit, the term, and sometimes the property's location within the state.
The result is that two identical agreements — same rent, same term, same clauses — can attract materially different duty depending only on which state the property sits in. Any article, calculator, or platform that quotes you a single national figure for "rent agreement stamp duty" is oversimplifying to the point of being unhelpful.
Practical approach: identify the instrument type precisely, identify the state, and then check the current schedule for that state. Where the transaction is significant, that is a question for a professional, not a search engine.
Instrument type matters more than you expect
A common trap is assuming that documents which feel similar are treated the same. They often are not:
- A leave and license agreement and a lease may be assessed differently, and the distinction is substantive rather than cosmetic — see our leave and license guide for why.
- An affidavit typically attracts a small fixed duty, but frequently also needs notarisation, which is an entirely separate requirement.
- Commercial leases often carry different treatment from residential ones, and the presence of a large interest-free deposit can change the calculation.
- Many purely commercial contracts — service agreements, NDAs, vendor agreements — attract little or no duty in many states, which is why the "continue without stamp duty processing" route exists at all.
What actually goes wrong when duty is short
People imagine the risk is a fine. The more damaging consequence is usually evidentiary. In broad terms, an inadequately stamped instrument may not be admitted in evidence until the deficit and a penalty have been paid. That matters at exactly the worst moment: you are in a dispute, you produce the agreement, and the other side points at the stamp.
Other practical consequences include:
- A registrar declining to register the instrument until duty is made good.
- A bank, employer, visa authority, or counterparty rejecting the document during due diligence.
- Penalties calculated as a multiple of the deficit, which can dwarf the original saving.
- Delay — the deficit has to be cured through a process, and processes take time you may not have.
None of this makes a digital agreement risky. It makes guessing at stamp duty risky, whether the agreement is on paper or a PDF.
Sequencing: get the order right
Stamping is generally expected at or before execution, not months afterwards. That has a workflow implication: decide the stamp duty position before you send signing invitations, not after everyone has signed.
This is also why agreement fields lock once verification links are issued and payment is completed. Every party needs to review and sign the same version of the same document, with the same stamp position. If the duty changes after signatures are collected, you are generally looking at a fresh document rather than an edit. Our How it works page walks through the full sequence, and Pricing shows how the stamp duty component is presented separately from service fees.
Notes for readers outside India
Two features discussed above are India-specific: Aadhaar eSign, which requires Aadhaar-based authentication, and the Indian eStamp system. If you are executing a document elsewhere, the concepts still transfer but the mechanics do not.
Most jurisdictions have some form of transaction or documentary tax, though the scope varies enormously. Some apply it narrowly to property and share transfers. Some apply it to leases above a certain term. Some have abolished it for ordinary commercial contracts entirely. A few useful questions to ask locally:
- Does my document type attract any duty, tax, or registration fee at all?
- Is there a filing deadline after execution, and is there a penalty for late payment?
- Does the document need to be witnessed, notarised, or apostilled for the use I have in mind?
- Is an electronic signature acceptable for this instrument, or is wet ink required?
That last question is worth its own treatment — we cover it in remote signing across borders.
A short checklist before you sign anything
- Name the instrument precisely. "Agreement" is not a category; "leave and license agreement for residential premises" is.
- Identify the governing state or country, and check that jurisdiction's current schedule.
- Decide whether registration is separately required — it is a different test.
- Decide the stamping route before issuing signing links, not after.
- Keep the stamp certificate and the executed agreement together as one file.
- If the amount is material or the instrument unusual, pay for an hour of professional advice. It is cheaper than a penalty.
Related reading
- How Aadhaar eSign works for online agreements
- Creating a residential rent agreement online
- Commercial lease agreements online
- Affidavits online, and when you still need a notary
Ready to start? Browse the document types on Do Agreement Online, or return to the WeSignDeal home page for an overview of the platform.
This article is general information about how stamping and electronic stamping work. It is not legal or tax advice, and WeSignDeal is not a law firm. Stamp duty requirements depend on your instrument, jurisdiction, and circumstances — obtain independent professional advice where the position matters.
