Sale Deed vs Agreement to Sell: What's the Difference?

An Agreement to Sell and a Sale Deed are both central to a property transaction, but they serve entirely different legal functions — and confusing the two is one of the more common, and costly, mistakes in real estate dealings.

Agreement to Sell

An Agreement to Sell is a promise to transfer property in the future, subject to agreed conditions being fulfilled — typically full payment. It creates a right to obtain the sale deed, but it does not itself transfer ownership or title. Possession may sometimes be handed over under an Agreement to Sell, but that alone does not make the buyer the legal owner.

Sale Deed

A Sale Deed is the actual instrument of transfer — it conveys ownership from seller to buyer, and must be registered under the Registration Act, 1908 to be legally valid and enforceable. Only after a registered Sale Deed is executed does the buyer become the legal owner of the property.

• Agreement to Sell: a promise to transfer, does not itself convey ownership
• Sale Deed: the actual, registered instrument that transfers ownership
• Stamp duty and registration apply to the Sale Deed, not typically the Agreement to Sell
• Disputes often arise when parties treat an unregistered Agreement to Sell as if it were a completed sale

The practical implication

If ownership hasn't legally transferred through a registered Sale Deed, the buyer's position remains vulnerable — regardless of how much has been paid or how long possession has been held. Ensuring the transaction is carried through to a properly registered Sale Deed is what actually secures the buyer's title.