Signing a client agreement: what actually makes it binding

Send a freelancer a service agreement with no witness line and a fair number will ask where it went. Tell them the NDA doesn't need a notary and some will ask you to add one anyway, just to be safe. Neither instinct is wrong to have. Both turn out to be unnecessary for the documents freelancers actually sign.

What actually makes an agreement a contract

Section 10 of the Indian Contract Act, 1872 sets out what turns an agreement into a contract: free consent between parties competent to contract, lawful consideration, and a lawful object. That is the whole list. Nothing in it mentions a witness, a notary, or a particular kind of paper.

Witnesses: not required, and four courts have said so

The Bombay High Court reached the same place in Asudamal v. Kisanrao, holding that attestation only becomes necessary where some specific statutory provision requires it for that particular document. That is the governing principle behind everything else here: attestation is the exception. It applies to a closed list of instruments rather than acting as a general rule waiting to be applied to whatever gets signed.

• Wills, under section 63 of the Indian Succession Act, 1925: two or more witnesses, each having seen the testator sign or received a personal acknowledgment of the signature.
• Gifts of immovable property, under section 123 of the Transfer of Property Act, 1882: a registered instrument attested by at least two witnesses.
• A mortgage other than by deposit of title deeds, for a principal of one hundred rupees or more, under section 59 of the same Act: again a registered instrument, again two witnesses.

A service agreement, an NDA, a founders' agreement, an MSA or a statement of work is none of those three things. None of them requires a witness by law.

This year's Supreme Court decision confirms it again

That decision, handed down in July this year, confirms a position the Supreme Court first took in 2007 still holds under the current evidence framework. The mechanism behind both rulings is a proof rule rather than a validity rule. The attesting-witness requirement in evidence law only activates for a document some other statute already requires to be attested. For everything outside that closed list, it never switches on.

A witness is still worth having, just not for the reason people assume

Nobody is required to add one, and adding one anyway is cheap and genuinely useful. A witness who signs and dates alongside the parties makes it harder for anyone to later deny they signed, and gives a court an easy way to fix the execution date if that ever gets disputed. Recommend it because it helps. Don't recommend it because the document is somehow incomplete without it.

Electronic signatures work, with two sharp exceptions

Section 5 of the Information Technology Act, 2000 gives an electronic signature the same legal standing as a signature on paper, and Aadhaar-based eSign has carried that same statutory recognition since a 2015 notification. For the great majority of what a freelancer signs, from an MSA to an NDA to a vendor agreement, electronic signature is fully valid.

• Negotiable instruments other than a cheque still sit outside electronic execution under the Act's First Schedule.
• A power of attorney does too, with a narrow carve-out for one that lets a regulated financial entity act under it.
• Wills and trusts stay excluded as well.
• Contracts for the sale of immovable property used to be on this exclusion list. A 2022 amendment took them off it. Content still listing property sale contracts as excluded from electronic signature is out of date.

Stamping is the one that genuinely bites

Section 35 of the Indian Stamp Act, 1899 makes an instrument chargeable with duty inadmissible in evidence, original or copy, until it is properly stamped. That is the sharpest consequence in this whole area: an unstamped MSA can sit signed and agreed for years and still be unusable the day you actually need to produce it in a dispute.

The defect is curable. Section 40(1)(b) sets the penalty at five rupees, or, at the Collector's discretion, up to ten times the deficient duty. The Supreme Court has held that maximum multiplier cannot be applied automatically just because a shortfall exists. The Collector needs a rational basis, such as fraud, before reaching for it.

Notarisation buys less than most people assume

Notarisation carries a genuine statutory presumption for exactly one class of document: a power of attorney, under section 84 of the Bharatiya Sakshya Adhiniyam, 2023. For an ordinary commercial contract, notarising it does not cure a stamping defect, does not cure a registration defect, and does not prove the truth of anything written inside it. It goes to execution. What the document actually says is a separate question entirely.

What this means for the next agreement you sign

• Get the stamp duty right. It varies by state and it is the one defect with a real evidentiary consequence.
• Sign electronically without a second thought, unless the document is a power of attorney, a will, or a negotiable instrument.
• Add a witness if it makes you or the other side more comfortable. It costs nothing and it never hurts.
• Skip the notary unless the document is a power of attorney or is headed outside India, where a separate authentication regime applies instead.

BuildWright drafts the agreement itself, tells you what stamp duty applies in your state, and sets it up so signing electronically is enough.