Short answer. Three things. Article 1495 binds the seller not only to deliver the item but to transfer its ownership and to warrant it. Handing over possession is not enough; the seller must convey title and stand behind the thing, answering if the buyer is later evicted or if the item turns out to have hidden defects.
What the law says
The vendor is bound to transfer the ownership of and deliver, as well as warrant the thing which is the object of the sale.
Civil Code, Article 1495 — Threefold Obligation of the Vendor. Read the full provision →
Delivery is only one of three duties
It is easy to think a seller's job ends when the goods change hands, but the Civil Code asks more. Article 1495 states that the vendor is bound to transfer the ownership of and deliver, as well as warrant the thing which is the object of the sale. That is a threefold obligation: transfer ownership, deliver, and warrant. Delivery is the most visible of the three, yet standing alone it does not discharge the seller. The buyer is entitled to become the true owner and to be protected against certain problems with the thing, not merely to receive physical possession of it.
Transferring ownership, not just possession
The seller must actually convey title, making the buyer the owner and not just the holder of the thing. Delivering possession while ownership stays elsewhere leaves the buyer exposed, since a possessor without title can be challenged by whoever truly owns the property. This is why a seller must have, or be able to pass, ownership of what he sells. The buyer bargained to own the thing, and the law treats the transfer of ownership as a core part of what the seller promised, distinct from the act of delivery itself.
The warranty behind the sale
The third duty is to warrant the thing, which protects the buyer after the sale. Two warranties are central. The seller warrants the buyer's peaceful and lawful possession, answering if the buyer is later evicted because a third person had a superior right to the thing. The seller also warrants against hidden defects, answering when the item has serious faults, not apparent on inspection, that make it unfit for its purpose or greatly reduce its value. These warranties mean the seller stands behind the thing rather than washing his hands once it is delivered.
What this means for buyers and sellers
For a buyer, the lesson is that a completed handover is not the end of the seller's responsibility: you are entitled to real ownership and to protection against eviction and hidden defects. For a seller, it is a reminder that promising to sell carries duties beyond delivery, and that selling something you do not own, or concealing a serious defect, can lead to liability well after the transaction. Knowing the threefold obligation helps both sides understand what a sale truly commits them to.
Cases citing this provision
These Supreme Court decisions cite the provision above. We list them so you can read them yourself; the summaries of what each decided are not ours to give.
- Tomas K. Chua vs. Court of Appeals, et al, G.R. No. 119255, April 9, 2003 — read the decision on LawPhil →
- Reynaldo San Pedro And Other Persons Acting In His Behalf vs. Spouses Angelito Trinidad And Consuelo Trinidad, G.R. No. 272300, April 7, 2025 — read the decision on LawPhil →
- Carlos B. De Guzman vs. Toyota Cubao, Inc, G.R. No. 141480, November 29, 2006 — read the decision on LawPhil →
- Josefina and Mamerto R. Palon, vs. Gil and Flocerfida S. Nino Brillante, et al, G.R. No. 138042, February 28, 2001 — read the decision on LawPhil →