A Bengaluru buyer paid most of the price for a resale flat, took the keys, moved in, and lived there for two years on the strength of a signed sale agreement, confident that possession and payment had made him the owner. When he tried to sell, his own buyer's lawyer stopped the deal cold: there was no registered sale deed, so in the eyes of the law the flat had never actually been transferred to him. He had a home he lived in and a document that promised ownership, but not the one that conferred it. The gap between agreeing to buy and being made the owner is a single registered instrument, and it is the one buyers most often postpone.

The short answer. A sale agreement, or agreement to sell, is a promise to transfer ownership in the future once conditions are met; a sale deed is the instrument that actually transfers ownership now. Title to immovable property passes only on a registered sale deed, and no amount of payment or possession under an agreement to sell makes you the legal owner without it. The sale deed is compulsorily registrable, which is why the stamp duty and registration cost land at that stage. The trade off is sequencing, not choice: you usually sign the agreement first to lock the deal and its conditions, then complete with a registered sale deed, and it is the second document, not the first, that makes the property yours.

What is the difference between a sale agreement and a sale deed?

A sale agreement sets out the terms on which a sale will happen later, while a sale deed carries out the sale itself. The agreement to sell records what the parties intend, the price, the timeline, the conditions to be met, and the promise that the seller will convey the property once those are satisfied, but it stops short of transferring anything. The sale deed is the document that, on registration, actually moves ownership from the seller to you. One is a forward looking promise; the other is the present act of transfer. Buyers often treat the agreement as the important document because it is signed first and feels like the commitment, but legally it is the sale deed that does the work, and reading the two as a sequence rather than as alternatives is the key to understanding your own position at each stage.

Which one actually transfers ownership to me?

Only the registered sale deed transfers ownership; the agreement to sell never does, however detailed it is. The courts have been consistent that title to immovable property passes on a registered conveyance and not on an agreement to sell, so a buyer holding only an agreement, even with full payment made and possession taken, is not yet the legal owner. This is the single most important thing to carry away, because it reframes the agreement as a step towards ownership rather than ownership itself. Until the sale deed is executed and registered, your rights rest on the contract, which you can enforce, but you do not hold the title. Treating the agreement as the finish line is exactly how buyers end up, like the one in our opening, unable to sell a home they have lived in for years. The same gap shows up when a buyer tries to raise a loan, since a lender wants security over a property the borrower actually owns, or when the property has to pass to heirs, where an unregistered agreement leaves the succession unsettled. Each of these is a moment when the missing deed, invisible while you simply live in the flat, suddenly decides what you can and cannot do.

Why is registration the dividing line?

Because the law makes a sale deed a compulsorily registrable document, and registration is what gives the transfer legal effect and public record. The table below sets the two documents side by side on the points that matter to a buyer.

Reading across, the registration of the sale deed is the moment the property legally becomes yours and the moment the bulk of the duty falls due. That is why completion, not agreement, is the event a buyer should treat as the real transfer.

If I have paid and taken possession, am I not the owner?

No, payment and possession under an agreement to sell do not by themselves make you the owner. It is a common and understandable assumption, because paying the price and holding the keys feels like ownership, but the law separates the enjoyment of the property from the title to it. Without a registered sale deed you have contractual rights, the ability to compel the seller to complete or to recover your money, but you do not have the title that lets you sell, mortgage cleanly or pass the property on with certainty. This matters most at the point you try to deal with the property later, which is exactly when the missing deed surfaces. Possession is comfort; registration is ownership, and a buyer who has one without the other has an unfinished purchase, not a completed one. There is also a real exposure to the seller's conduct in the gap: while only an agreement exists, a dishonest seller retains the legal title and the theoretical ability to deal with the property again, which is why a buyer should move from agreement to registered deed as promptly as the conditions allow rather than living indefinitely on a promise.

When do I sign each document, and what does RERA require?

You usually sign the agreement to sell first to lock the deal, then complete with a registered sale deed once conditions are met. The agreement is where you fix the price, the payment schedule, the timeline and the conditions, such as clearing dues or obtaining approvals, and it protects both sides while those are worked through. When buying an under construction flat in a registered real estate project, the developer is required under the RERA framework to execute a registered agreement for sale before taking more than a capped share of the price, which gives the buyer a registered contract at the booking stage. The sale deed then follows at completion, transferring the finished flat. So the agreement governs the journey and the sale deed marks the arrival, and knowing which stage you are at tells you exactly what rights you currently hold. A well drafted agreement also sets out what happens if either side fails to complete, such as the buyer's right to seek specific performance or the return of the earnest money, which is precisely the protection that carries you safely from the promise to the transfer.

How do I use each safely as a buyer?

Treat the agreement as protection for the process and the sale deed as the event that makes you the owner.

1. Put the full terms, price, schedule and conditions into a clear written agreement to sell.
2. Use the agreement period to complete title checks and clear any conditions.
3. Do not treat payment or possession under the agreement as ownership of the flat.
4. Insist on a registered sale deed to actually transfer title into your name.
5. Budget the stamp duty and registration for the sale deed stage, where they fall.
6. For an under construction flat, obtain the registered agreement for sale RERA requires.
7. Keep both the agreement and the registered sale deed together in your records.

How does this fit GPA and stamp duty?

The rule that only a registered sale deed transfers title connects two things a Bengaluru buyer should already understand. It is the same principle behind our guide to why a general power of attorney sale is not a substitute for a registered sale deed, since neither an agreement nor a power of attorney conveys ownership the way a registered deed does. And because the sale deed is where the duty falls, our guide to Karnataka stamp duty and registration charges explains the cost you meet at that stage. If you are buying into a project such as JRC Kanso on Sarjapur Attibele Road, use the agreement to secure your terms and the registered sale deed to secure your ownership. The two documents do different jobs, and a safe purchase uses both in the right order.

Frequently asked questions

Does an agreement to sell make me the owner? No. An agreement to sell is a promise to transfer ownership in the future once conditions are met, and it does not transfer title on its own. Ownership of immovable property passes only on a registered sale deed, so a buyer holding only an agreement, even with payment and possession, is not yet the legal owner.

Is a sale deed compulsory to transfer property? Yes. A sale deed is a compulsorily registrable document, and the courts treat a registered sale deed as the only instrument that transfers ownership of immovable property. Without registration the transfer has no legal effect, which is why completion by a registered sale deed, not merely an agreement, is the event that makes the property yours.

I have paid and hold possession, why am I not the owner? Because payment and possession under an agreement to sell give you contractual rights, not title. You can compel the seller to complete or recover your money, but you cannot sell, cleanly mortgage or pass on the property with certainty until a registered sale deed transfers the title. Possession is enjoyment; registration is ownership.

When is each document signed? Usually the agreement to sell is signed first to fix the price, schedule and conditions, and the registered sale deed follows at completion. For an under construction flat in a registered project, the developer must execute a registered agreement for sale before taking more than a capped share of the price, with the sale deed at handover.

Last updated 2026-08-30. PropNewz Team.