Fundamentals of Business Laws and Business Communication · Essential Elements of a Contract, Offer and Acceptance

Acceptance and Its Legal Rules in Contract Law

Updated 10 October 2026 · Fact-checked

Acceptance is the offeree's final, unconditional assent to the terms of an offer. It must be absolute, made by the offeree, communicated to the offeror, and in the prescribed or a reasonable mode. Once accepted, the offer becomes a promise. Silence alone is not acceptance. Performing the conditions of the proposal also counts (Section 8).

Understand Acceptance and Its Legal Rules

A contract starts with an offer (proposal). The offer turns into a promise only when the person it is made to says yes. That yes is acceptance. Until then, nothing binds either side.

The law sets rules so that both sides know exactly when the deal is made. The first rule is that acceptance must be absolute and unconditional. It must match the offer exactly. If you add a new condition, change the price or vary a term, you have not accepted. You have made a counter-offer, which rejects the original offer and creates a new one.

The second rule is that acceptance must be communicated to the offeror by the offeree or an authorised person. A decision made in your head is not acceptance. Silence cannot be forced into acceptance either. The offeror cannot say, "If I hear nothing, I will take it as yes." The offeree has no duty to reply.

The third rule is the mode. If the offer prescribes a mode, such as "reply by registered post", accept in that mode. If no mode is prescribed, use a usual and reasonable mode. If the offeree uses a different mode, the offeror may insist on the prescribed mode, but must do so within a reasonable time. Otherwise the offeror is taken to have accepted the different mode.

Acceptance can also be by conduct. If an offer lists conditions, performing those conditions is acceptance. Taking the benefit of a reciprocal promise (accepting consideration for it) is also acceptance. This is the idea in Section 8 of the Indian Contract Act, 1872. Acceptance must also be given while the offer is still open, so it must come before the offer lapses or is revoked. Only the person to whom the offer is made can accept it.

Key formulas to remember

Absolute and unconditional: Acceptance = exact match with the terms of the offer; Any change or new condition is a counter-offer, not acceptance.
Communication: Acceptance must be communicated to the offeror; Mental assent or an uncommunicated decision is not acceptance.
Silence: Silence ≠ acceptance; The offeror cannot impose a duty to reply. Silence may amount to acceptance only where the surrounding conduct shows assent.
Mode of acceptance: Prescribed mode, or else a usual and reasonable mode; If a different mode is used, the offeror must object within a reasonable time or is taken to have accepted it.
Who can accept: Only the offeree (or an authorised agent); A stranger cannot accept an offer made to someone else.
Timing: Acceptance must be made before the offer lapses or is revoked; Acceptance after lapse or revocation is not valid. It is at most a new offer.
Acceptance by conduct (Section 8): Performing the conditions of the proposal, or accepting consideration for a reciprocal promise = acceptance; Typical case: a general offer such as a reward notice, where doing the act, with knowledge of the offer, is the acceptance.

How to solve Acceptance and Its Legal Rules questions

Use this method for any question that asks whether a valid acceptance has been made.

1Identify the offer and its exact terms, including any mode of reply prescribed.
2Check who replied. Only the offeree or an authorised agent can accept.
3Compare the reply with the offer. If it adds, changes or conditions any term, it is a counter-offer, so no acceptance.
4Check communication. Was the reply actually conveyed to the offeror? If only silence or a private decision, there is no acceptance.
5Check the mode. Was the prescribed mode followed, or a reasonable mode if none was prescribed?
6Check timing. Was the offer still open, not lapsed, not revoked, not rejected?
7For conduct, ask whether the offeree performed the conditions of the proposal or accepted consideration for a reciprocal promise (Section 8), and whether the offeree knew of the offer.
8State your conclusion in one line: valid acceptance, counter-offer or no acceptance, with the reason.

Quickest way: Four-word acceptance check

When to use it: Use it in MCQs where several options describe a reply to an offer and you must pick the valid acceptance or the wrong statement.

Ask: Absolute? Any added condition makes the reply a counter-offer. Eliminate that option.
Ask: Communicated? Silence or an unspoken decision is out.
Ask: Offeree? Replies by strangers are out.
Ask: On time and in mode? Late replies and replies after revocation are out.
If the case says someone performed the act the offer asked for, knowing of the offer, mark acceptance by conduct.

Common mistakes in Acceptance and Its Legal Rules

Treating a reply with a changed term as acceptance.
The reply sounds positive, such as "I agree, but at ₹90,000", so students overlook the change.
Fix: Any variation is a counter-offer. It rejects the original offer, and the original offeror becomes the offeree of the new proposal, free to accept or reject it.
Believing silence is acceptance when the offeror says so.
Students think the offeror can set the rules for the reply.
Fix: The offeror cannot impose a duty on the offeree to speak. Silence alone is not acceptance.
Thinking a mental decision to accept is enough.
Students confuse intention with communication.
Fix: Acceptance must be communicated to the offeror by words or conduct.
Saying acceptance in a different mode is always invalid.
Students remember that a mode was prescribed and stop there.
Fix: The offeror may insist on the prescribed mode only within a reasonable time. If the offeror stays quiet, the different mode is treated as accepted.
Letting a stranger accept an offer.
Students focus on the content of the reply, not who gave it.
Fix: Only the person to whom the offer was made, or an authorised agent, can accept.
Forgetting that performing the conditions is acceptance.
Students look for a written or spoken yes.
Fix: Under Section 8, doing the act the offer asks for, or accepting consideration for a reciprocal promise, is acceptance. The person must know of the offer when doing the act.

Worked examples

Example 1

Ravi offers to sell his scooter to Meena for ₹60,000. Meena replies, "I accept, but I will pay ₹55,000." Is there a contract at the time of her first reply?

Show the solution

The offer is to sell at ₹60,000.
Meena's first reply changes the price to ₹55,000, so it is not absolute and unconditional.
A changed term makes it a counter-offer. It rejects Ravi's original offer.
The original offer is therefore gone. Ravi is now the offeree of Meena's new proposal and may accept or reject it. No contract exists after the first reply.

Answer: No contract. Meena's first reply is a counter-offer, not acceptance, and it ends Ravi's original offer.

Example 2

Sunita publishes a notice: "Anyone who finds my lost dog and returns it will get ₹5,000." Anil reads the notice, finds the dog and returns it. Another person, Kiran, who also read the notice, only thought of looking but did nothing. Who has accepted the offer, and how?

Show the solution

The notice is a general offer with a condition: return the lost dog.
Under Section 8, performing the conditions of a proposal is acceptance.
Kiran only made a mental decision and performed nothing, so he has not accepted.
Anil knew of the notice and performed the act the offer asked for, so acceptance by conduct is complete.
Note that if Anil had returned the dog without knowing of the notice, he would not have accepted, since acceptance needs knowledge of the offer.

Answer: Anil has accepted by performing the conditions of the proposal (Section 8), knowing of the offer. Kiran has not accepted, because a private decision is not acceptance.

Exam tips

Questions often hide a counter-offer in a polite reply. Look for words like "but", "provided that" and any changed price or date.
If the options say "silence is acceptance", it is almost always the wrong choice.
When a question mentions a reward notice or a general offer, think of acceptance by performing the conditions, and check that the person knew of the offer.
Check who is replying. A reply from a third party is a favourite trap.
Read mode of communication questions carefully: an offeror who stays quiet about a different mode is treated as having accepted it.

Practice questions from Essential Elements of a Contract, Offer and Acceptance

Acceptance and Its Legal Rules: frequently asked questions

Can silence be acceptance of an offer?

No, silence by itself is not acceptance. The offeror cannot make the offeree reply by saying that silence will mean yes. Assent can be shown by words or conduct, but not by plain silence.

What does Section 8 say about acceptance?

Section 8 says that performing the conditions of a proposal, or accepting any consideration for a reciprocal promise that is offered with the proposal, is acceptance. It is the basis of acceptance by conduct, as in reward offers.

What is the difference between acceptance and a counter-offer?

Acceptance agrees to the offer exactly as made. A counter-offer changes or adds to the terms. A counter-offer rejects the original offer, so the original cannot be accepted later unless it is made again.

How do you accept an offer in contract law?

The offeree communicates unconditional agreement to the offeror, in the mode prescribed or a usual and reasonable mode, while the offer is still open. If the offer asks for an act, doing that act with knowledge of the offer also counts as acceptance.