DefineLaw

What is acceptance?

Acceptance is the offeree’s agreement to the terms of the offer.

Why it matters

Acceptance completes the contract and creates mutual obligations.

Common confusion

Acceptance must match the offer; changing terms is a counter-offer.

DefineLaw editors — plain-English definitions for general reference; not a substitute for advice from a licensed attorney.

Frequently Asked Questions

Must acceptance be in writing?

Not always, but some contracts require a signed writing.

What is the mailbox rule?

Acceptance is often effective when sent, not when received.

Can I accept by starting work?

Sometimes — beginning performance can be acceptance of an offer.

Related contract terms