Philippine Civil Law Context

I. Introduction

In Philippine civil law, a specific or determinate thing is a thing that is particularly designated or physically segregated from all others of the same class. It is identified as the exact object that must be delivered, preserved, returned, sold, leased, or otherwise dealt with in an obligation or contract.

The concept is important because the Civil Code treats obligations involving a specific or determinate thing differently from obligations involving a generic or indeterminate thing. The classification affects the debtor’s duties, the creditor’s remedies, the effect of loss or destruction, the transfer of ownership, and the application of legal rules such as delay, fortuitous event, specific performance, damages, and risk of loss.

In simple terms:

A specific thing is “this exact thing.” A generic thing is “any thing of this kind.”

Example:

Specific or determinate thing: “the Toyota Vios with Plate No. ABC 123 registered in the name of X”
Generic or indeterminate thing: “one Toyota Vios”
Specific or determinate thing: “the house and lot covered by TCT No. 123456”
Generic or indeterminate thing: “a house and lot in Quezon City”
Specific or determinate thing: “the original painting signed by Juan Luna hanging in the sala”
Generic or indeterminate thing: “one painting”

This distinction is one of the foundational classifications in the law of obligations and contracts.

II. Civil Code Basis

The Civil Code of the Philippines uses the concept of determinate things in the law on obligations.

Article 1163 provides that:

Every person obliged to give something is also obliged to take care of it with the proper diligence of a good father of a family, unless the law or the stipulation of the parties requires another standard of care.

Article 1165 provides that when what is to be delivered is a determinate thing, the creditor, in addition to the right to recover damages, may compel the debtor to make the delivery. If the thing is indeterminate or generic, the creditor may ask that the obligation be complied with at the debtor’s expense.

These provisions show that the Civil Code distinguishes between determinate and generic objects because the remedy depends on the nature of the thing due.

III. Meaning of Specific or Determinate Thing

A thing is specific or determinate when it is particularly designated or physically segregated from all others of the same class.

This means the thing can be identified as the very object contemplated by the parties. It is not interchangeable with another object without changing the obligation.

A determinate thing has individuality. It is marked, described, titled, numbered, identified, located, or otherwise distinguished so that no other thing can substitute for it unless the creditor agrees.

Examples:

“My 2020 Honda Civic, Vehicle Identification Number [VIN], with Plate No. XYZ 789”
“The parcel of land covered by Transfer Certificate of Title No. 654321”
“The diamond ring inherited from my mother”
“The laptop with Serial No. SN12345”
“The cow named Bessie located at the debtor’s farm”
“The condominium unit Unit 12-B, Tower 1, located at [address]”
“The original signed copy of a particular manuscript”
“The exact 500 sacks of rice stored in Warehouse A and tagged for Buyer X”

The thing is determinate because the debtor cannot deliver another similar thing and claim performance.

IV. Specific, Determinate, Generic, and Indeterminate Things

The terms are often paired as follows:

Specific is commonly used to mean individually identified.
Determinate is the Civil Code term for a thing particularly designated or segregated.
Generic means identified only by class, kind, genus, or category.
Indeterminate means not individually identified at the time the obligation is constituted.

Thus:

A specific or determinate thing is exact and individualized. A generic or indeterminate thing is identified only by kind or class.

Example:

Specific: “the white iPhone 15 Pro Max with Serial No. A123.” Generic: “one iPhone 15 Pro Max.”

Specific: “the 100 sacks of rice marked Lot A-15 in Warehouse 3.” Generic: “100 sacks of rice.”

Specific: “the horse named Midnight.” Generic: “one horse.”

Specific: “the house at 25 Mabini Street, Barangay San Roque.” Generic: “a house.”

V. Why the Distinction Matters

The distinction matters because different legal rules apply.

For a specific thing, the creditor may demand delivery of that exact thing. If it is lost without fault before the debtor is in delay, the obligation may be extinguished.

For a generic thing, the debtor can deliver any thing of the same kind and quality. Loss does not generally extinguish the obligation because a generic thing can be replaced.

The classic principle is:

Genus never perishes — a generic thing does not legally perish because another thing of the same class can usually be procured.

But a specific thing can perish. If the exact thing is destroyed, the debtor can no longer deliver it.

VI. Characteristics of a Specific or Determinate Thing

A thing is specific or determinate when it has one or more of the following characteristics:

1. It Is Particularly Designated

The parties identify the exact thing.

Example:

“I will sell you my red Yamaha motorcycle with Plate No. 1234.”

2. It Is Physically Segregated

Even if the thing belongs to a larger mass, it becomes determinate if separated or marked.

Example:

“500 cavans of rice taken from Warehouse B and marked for Buyer A.”

3. It Is Not Interchangeable Without Consent

The debtor cannot substitute another thing of similar kind without the creditor’s agreement.

Example:

A seller who agreed to deliver a specific antique cabinet cannot deliver a similar antique cabinet.

4. It Has Individual Identity

The thing has a unique identity by title, serial number, location, registration, physical features, or specific description.

Example:

A parcel of land covered by a particular certificate of title.

5. It Is the Exact Object Intended by the Obligation

The parties intended that exact object, not merely an object of the same kind.

Example:

A buyer wants the seller’s particular racehorse, not just any racehorse.

VII. Examples of Specific or Determinate Things

1. Real Property

Real property is often determinate because land is naturally identifiable by location, boundaries, title, tax declaration, or survey plan.

Examples:

A parcel of land covered by TCT No. 123456;
A condominium unit identified by unit number and title;
A house located at a specific address;
A farm lot described by metes and bounds.

2. Vehicles

Vehicles may be determinate when identified by plate number, engine number, chassis number, VIN, registration, or specific description.

Example:

“The 2019 Toyota Fortuner with Plate No. ABC 111, Engine No. X123, Chassis No. Y456.”

3. Animals

Animals may be specific if individually identified.

Example:

“The carabao named Kaloy kept at the debtor’s farm.”

4. Jewelry

Jewelry may be specific if described with sufficient particularity.

Example:

“The 18-karat gold necklace with a heart-shaped pendant and initials M.R.”

5. Artworks and Collectibles

Original works and collectibles are often specific.

Example:

“The original signed painting titled ‘Sunset at Manila Bay’ by Artist X.”

6. Goods Segregated from a Larger Stock

Goods initially generic can become determinate once segregated or marked.

Example:

“1,000 bottles from Batch No. 25, already packed and labeled for Buyer Y.”

VIII. Examples of Generic or Indeterminate Things

A thing is generic when it is identified only by class or kind.

Examples:

“One sack of rice”
“A cellphone”
“A brand-new laptop”
“A car”
“Ten kilos of sugar”
“One cow”
“A parcel of land in Cavite”
“A wedding ring”
“A condominium unit in Makati”
“A 50-square-meter office space”

These descriptions are not yet determinate because many things may satisfy them.

However, a generic thing may later become determinate when selected, segregated, delivered, or specifically identified.

IX. Limited Generic Things

There is also a middle category sometimes discussed in civil law: limited generic things.

A limited generic thing is not fully specific, but the genus or class is limited to a particular source, group, or stock.

Example:

“One of the puppies born to my dog Bella last January”
“100 sacks of rice from my warehouse in Bulacan”
“One of the three cars parked in my garage”
“Any one of the paintings in my private collection”
“A unit from Building A of the developer’s completed condominium project”

This is more restricted than a purely generic obligation, but not yet as individualized as a specific thing.

The legal effect may depend on whether the limited class perishes. If all items in the limited class are destroyed without the debtor’s fault before selection and before delay, performance may become impossible. But if other items within the limited class remain available, the debtor may still be bound to deliver.

X. When Does a Generic Thing Become Specific?

A generic thing may become specific through individualization or determination.

This may happen by:

Selection by the debtor, if the debtor has the right to choose;
Selection by the creditor, if the creditor has that right;
Agreement of both parties;
Segregation from the mass;
Marking or labeling;
Delivery to the carrier;
Setting aside the goods for the buyer;
Identification in a contract, receipt, invoice, or warehouse record;
Transfer of title documents;
Physical delivery.

Example:

A seller agrees to sell “100 sacks of rice.” At first, the thing is generic. When the seller separates 100 sacks, marks them with the buyer’s name, and notifies the buyer, the goods may become determinate, depending on the agreement and circumstances.

XI. Obligation to Give a Determinate Thing

When a person is obliged to give a determinate thing, the debtor must deliver that exact thing.

The debtor’s obligations include:

Preserve the thing with proper diligence;
Deliver the thing itself;
Deliver its accessions;
Deliver its accessories;
Answer for damages in case of fraud, negligence, delay, or contravention of the obligation;
Refrain from substituting another thing without consent.

Example:

If A sells B “A’s black Toyota Hilux with Plate No. XYZ 111,” A must deliver that exact vehicle. A cannot deliver a different Toyota Hilux.

XII. Duty to Preserve the Thing

Under Article 1163, every person obliged to give something must take care of it with the proper diligence of a good father of a family, unless the law or the agreement requires another standard.

For a determinate thing, this duty is important because the thing cannot simply be replaced. The debtor must preserve it until delivery.

Example:

If a seller agrees to deliver a specific horse, the seller must feed it, shelter it, and protect it with ordinary diligence until delivery.

If the debtor negligently allows the specific thing to be damaged or lost, the debtor may be liable for damages.

XIII. Diligence of a Good Father of a Family

The phrase “diligence of a good father of a family” means ordinary diligence. It is the care that a reasonably prudent person would exercise over their own property under similar circumstances.

It does not require extraordinary care unless:

The contract requires it;
The law requires it;
The nature of the obligation requires it;
The circumstances demand a higher standard;
The debtor is a common carrier, depositary, bank, or other party subject to special rules.

In an ordinary sale of a specific object, the debtor must at least exercise ordinary care until delivery.

XIV. Right to Compel Delivery

If the thing is determinate and the debtor refuses to deliver it, the creditor may compel delivery of the exact thing, in addition to damages when proper.

This is the remedy of specific performance.

Example:

A collector buys a particular antique watch from the owner. The owner later refuses to deliver it because another buyer offered a higher price. Since the watch is specific, the buyer may seek delivery of that exact watch, not merely damages.

This remedy makes sense because the creditor bargained for that exact object.

XV. Delivery of Accessions and Accessories

When the obligation is to deliver a determinate thing, the debtor must also deliver its accessions and accessories, even if they were not mentioned, unless there is a stipulation to the contrary.

Accessions

Accessions are additions, improvements, fruits, or attachments produced by or incorporated into the thing.

Examples:

Fruits of a tree;
Young of an animal;
Improvements attached to land;
Natural increase.

Accessories

Accessories are things joined to or included with the principal thing for its use, perfection, or enjoyment.

Examples:

Keys of a car;
Owner’s manual;
Spare tire;
Remote control of an appliance;
Title documents;
Tools specifically attached to machinery.

If A sells a specific car, A must deliver the car’s usual accessories unless otherwise agreed.

XVI. Fruits of the Determinate Thing

The creditor has a right to the fruits of the thing from the time the obligation to deliver arises. However, the creditor generally does not acquire real rights over the thing until delivery.

Example:

A sells B a specific mango tree or a parcel of land with fruit-bearing trees. Depending on the contract, B may have a right to fruits from the time the obligation to deliver arises, but ownership or real right generally requires delivery.

The Civil Code distinction between personal right and real right is important. Before delivery, the buyer may have a personal right against the seller. After delivery, the buyer acquires ownership or another real right, depending on the transaction.

XVII. Personal Right Before Delivery

In a contract to deliver a specific thing, the creditor may acquire a personal right before delivery.

A personal right is enforceable against a specific person, such as the debtor.

Example:

If A sells B a specific ring but has not yet delivered it, B may demand that A deliver the ring. B’s right is against A.

But B may not yet have ownership enforceable against the whole world unless delivery has occurred or unless the law provides otherwise.

XVIII. Real Right After Delivery

A real right is enforceable against the world. In civil law, ownership and other real rights are generally transferred by delivery, not by mere agreement alone.

Thus, in a sale of a determinate thing, the contract may create the obligation to deliver, but ownership is generally transferred upon delivery.

Delivery may be:

Actual or physical;
Constructive;
Symbolic;
By public instrument;
By tradition longa manu;
By tradition brevi manu;
By constitutum possessorium;
By delivery of title documents, depending on the object.

This is why identifying a thing as determinate is important but not always enough to transfer ownership.

XIX. Specific Thing in a Contract of Sale

In a sale, the thing sold may be determinate or determinable.

A sale of a determinate thing is valid if the thing is identified or capable of being identified.

Examples:

Sale of a specific titled lot;
Sale of a specific car;
Sale of a specific condominium unit;
Sale of a specific machine.

The seller must deliver the thing sold. The buyer must pay the price.

If the thing is lost before perfection of the sale, no sale may arise because there is no object. If the thing is lost after perfection but before delivery, the rules on risk and loss must be examined.

XX. Determinate Thing Versus Determinable Thing

A thing may be determinate or determinable.

A determinate thing is already identified.

A determinable thing is not yet specifically identified at the moment, but it can be determined later without the need for a new agreement.

Example:

Determinate: “Unit 15-A of Tower 2, ABC Condominium.”

Determinable: “The unit to be assigned to Buyer from the completed 15th floor units according to the reservation schedule.”

A sale may be valid if the object is determinate or at least determinable, provided it can be identified without a new contract between the parties.

XXI. Specific Thing in Lease

In a lease, the thing leased is often determinate.

Examples:

A specific apartment unit;
A particular office space;
A named parking slot;
A specific farm lot;
A particular vehicle.

The lessor must allow the lessee to enjoy that specific thing for the agreed period. The lessee cannot usually demand another unit unless the contract allows substitution.

If the specific leased thing is destroyed without fault, the lease may be extinguished or modified depending on the extent of loss and applicable rules.

XXII. Specific Thing in Deposit

In a deposit, a specific thing is usually delivered for safekeeping. The depositary must return the identical thing, not another of the same kind, unless the deposit is irregular.

Example:

If A deposits a particular watch with B for safekeeping, B must return that watch.

If money is deposited in a bank, the legal relationship is different because money deposited in a bank is generally treated as a loan to the bank, not an ordinary deposit requiring return of the identical bills.

XXIII. Specific Thing in Commodatum

In commodatum, one party lends a non-consumable thing to another for use, and the borrower must return the same thing.

Example:

A lends B a specific camera for a weekend. B must return that camera, not another camera.

Because commodatum involves return of the identical object, the thing is typically specific or determinate.

XXIV. Specific Thing in Pledge and Mortgage

Security transactions usually involve determinate things.

In pledge, the object pledged must be identified and delivered to the creditor or a third person by common agreement.

In mortgage, the property mortgaged must be sufficiently described, especially for registration and enforcement.

Examples:

A specific parcel of land mortgaged to secure a loan;
A specific vehicle pledged or chattel-mortgaged;
Specific shares of stock pledged as security.

The identity of the collateral matters because the creditor’s right attaches to that property.

XXV. Specific Thing in Succession

In succession, a testator may give a specific thing by legacy or devise.

Examples:

“I give my house in Baguio to my daughter.”
“I give my Rolex watch to my nephew.”
“I give my piano to my niece.”

These are specific legacies or devises. If the specific thing no longer exists in the estate at the time of death, the effect depends on succession rules.

XXVI. Loss of a Specific or Determinate Thing

A key consequence of determinateness is that the loss of the thing may extinguish the obligation if the loss occurs without the debtor’s fault and before the debtor is in delay.

A specific thing can be lost because the debtor cannot replace it with another thing without changing the obligation.

Example:

A is obliged to deliver to B A’s specific horse named Midnight. Before delivery, without A’s fault and before A is in delay, the horse dies due to an unavoidable disease. A may be released from the obligation to deliver the horse, subject to applicable rules.

This is different from an obligation to deliver “one horse,” because the debtor can still procure another horse.

XXVII. Meaning of Loss

Loss may mean:

The thing perishes;
The thing goes out of commerce;
The thing disappears in such a way that its existence is unknown;
The thing is impossible to recover;
The thing is legally or physically impossible to deliver.

Examples:

A specific car is destroyed by fire;
A specific painting is stolen and cannot be recovered;
A specific parcel of land is expropriated;
A specific animal dies;
A specific object is confiscated lawfully and permanently;
A thing becomes illegal to possess or transfer.

Loss must be examined carefully because partial damage is not always total loss.

XXVIII. Loss Without Fault Before Delay

If a determinate thing is lost without the debtor’s fault and before the debtor is in delay, the obligation to deliver may be extinguished.

Example:

A agrees to deliver a specific antique vase to B on June 30. On June 15, an earthquake destroys the vase without A’s fault. A may be excused from delivery.

The reason is that performance became impossible without the debtor’s fault.

XXIX. Loss Due to Debtor’s Fault

If the specific thing is lost due to the debtor’s fault, the debtor is liable for damages.

Example:

A agrees to deliver a specific car to B. Before delivery, A negligently drives it recklessly and destroys it. A cannot deliver the car and must answer for damages.

The obligation to deliver the thing may be converted into liability for damages.

XXX. Loss After Delay

If the debtor is in delay, the debtor may be liable even if the thing is later lost by fortuitous event, subject to Civil Code rules.

Example:

A was supposed to deliver a specific horse on June 1. B made a proper demand, but A unjustifiably refused. On June 10, lightning kills the horse. Since A was already in delay, A may be liable.

Delay changes the risk allocation.

XXXI. Fortuitous Event

A fortuitous event is an event that could not be foreseen, or though foreseen was inevitable, and which makes performance impossible without the debtor’s fault.

Examples:

Earthquake;
Flood;
Fire not caused by negligence;
War;
Government prohibition;
Sudden unavoidable destruction;
Certain natural disasters.

A fortuitous event may excuse the debtor only if all legal conditions are present. It does not excuse liability if the debtor was negligent, in delay, assumed the risk, or if the law or contract provides otherwise.

XXXII. Generic Things Do Not Perish

For generic things, the rule is different.

If A owes B “100 sacks of rice,” A cannot avoid liability by saying that the 100 sacks he intended to deliver were destroyed. Unless the obligation was limited to a specific stock, A can obtain other sacks of rice.

This is the principle that genus never perishes.

Example:

A agrees to deliver “one laptop.” The laptop A planned to deliver is stolen. A must still deliver another laptop of the agreed kind and quality.

XXXIII. When Loss of Limited Generic Thing May Extinguish Obligation

If the obligation is limited to a particular source or class, loss of the entire limited class may extinguish the obligation.

Example:

A agrees to deliver “100 sacks of rice from my warehouse in Bulacan.” If the warehouse and all the rice in it are destroyed by a fortuitous event before delay and without A’s fault, A may argue that performance became impossible.

But if rice from that warehouse remains, A may still be bound to deliver from the remaining stock.

XXXIV. Deterioration of a Specific Thing

A specific thing may deteriorate before delivery.

If deterioration occurs without debtor’s fault, the creditor may have to accept the thing in its deteriorated condition, depending on the contract and applicable rules.

If deterioration occurs through debtor’s fault, the creditor may seek damages or other remedies.

Example:

A is obliged to deliver a specific car. Before delivery, A negligently leaves it exposed to flooding, damaging the engine. B may demand damages.

XXXV. Improvements of a Specific Thing

A specific thing may improve before delivery.

Improvements may be:

By nature;
By time;
At the debtor’s expense;
By third-party action;
By accident.

The rights over improvements depend on the rules on obligations, ownership, accessions, and the contract.

Example:

If a specific parcel of land increases in value because of a new road nearby, the benefit generally follows the property. If the seller made improvements after the obligation to deliver arose, reimbursement issues may arise depending on good faith, agreement, and applicable rules.

XXXVI. Specific Performance

Specific performance is especially relevant to determinate things.

If the debtor refuses to deliver a specific thing, the creditor may ask the court to compel delivery. This is because monetary damages may not be adequate when the object is unique.

Examples:

A family heirloom;
A titled parcel of land;
A rare painting;
A specific vehicle;
A unique piece of equipment;
A collectible item.

For generic things, the remedy may be compliance at the debtor’s expense, because substitutes are available.

XXXVII. Substitution Is Not Allowed Without Consent

If the obligation is to deliver a determinate thing, the debtor cannot deliver a different thing even if it is of equal or greater value, unless the creditor agrees.

Example:

A owes B a specific ring inherited from B’s grandmother. A cannot deliver a more expensive ring and claim performance.

The creditor’s right is to the exact thing promised.

XXXVIII. Creditor Cannot Demand a Different Thing

The rule also works the other way. If the debtor is obliged to deliver a specific thing, the creditor cannot demand another thing unless the debtor agrees or the law allows it.

Example:

If A sold B a specific second-hand car, B cannot demand a brand-new car instead.

The obligation is defined by the object agreed upon.

XXXIX. Determinate Thing and Delay

Delay, or mora, may have serious consequences in obligations involving determinate things.

The debtor may be in delay when:

The obligation is due and demandable;
The creditor makes a judicial or extrajudicial demand;
The debtor fails to perform;
Demand is required, unless waived or unnecessary under the law or contract.

Once in delay, the debtor may bear the risk of loss and may be liable for damages.

Example:

A must deliver a specific motorcycle on May 1. B demands delivery on May 2. A refuses without valid reason. If the motorcycle is destroyed on May 5 due to a fortuitous event, A may still be liable because A was already in delay.

XL. When Demand Is Not Necessary

Demand may not be necessary to put the debtor in delay when:

The obligation or law expressly so declares;
Time is of the essence;
Demand would be useless because the debtor has rendered performance beyond his power;
Other Civil Code exceptions apply.

Example:

If a contract says delivery of a specific wedding gown must occur on the wedding date and time is essential, failure to deliver on that date may result in delay without further demand.

XLI. Determinate Thing and Fraud

If the debtor fraudulently fails to deliver or disposes of a specific thing, the debtor may be liable for damages and possibly other legal consequences.

Example:

A sells a specific car to B, receives payment, then sells and delivers the same car to C in bad faith. B may have civil remedies, and depending on the facts, criminal issues may arise.

Fraud aggravates liability and may defeat defenses based on loss or impossibility.

XLII. Determinate Thing and Negligence

If the debtor negligently loses or damages the specific thing, liability follows.

Example:

A is obliged to return a borrowed camera but leaves it unattended in a public place. It is stolen. A may be liable because the loss resulted from negligence.

The debtor must prove absence of fault if relying on fortuitous event.

XLIII. Determinate Thing and Contravention of the Tenor of the Obligation

The debtor is liable if he violates the terms of the obligation.

Examples:

Delivering late;
Delivering the thing damaged;
Delivering it without accessories;
Refusing to deliver;
Delivering it to the wrong person;
Substituting another thing;
Using the thing in violation of the agreement before delivery;
Encumbering the thing despite obligation to deliver it free from liens.

These may give rise to damages.

XLIV. Determinate Thing in Alternative Obligations

An alternative obligation involves several prestations, but only one is due after selection.

Example:

A agrees to deliver either:

His specific car; or
His specific motorcycle; or
₱200,000.

Before choice, the obligation has multiple possible objects. After valid choice is communicated, the selected prestation becomes the only one due.

If the chosen object is a specific thing, the rules on determinate things apply.

XLV. Determinate Thing in Facultative Obligations

In a facultative obligation, only one prestation is due, but the debtor may substitute another.

Example:

A is obliged to deliver his specific laptop, but he may substitute it with ₱50,000.

The specific laptop is the principal object. If it is lost without debtor’s fault before substitution, the obligation may be extinguished. If the substitute is lost before substitution, the debtor is generally not liable because it is not yet due.

XLVI. Determinate Thing in Conditional Obligations

An obligation to deliver a specific thing may be subject to a condition.

Example:

A promises to give B a specific car if B passes the bar examinations.

Before the condition happens, the creditor’s rights are conditional. If the thing is lost, deteriorates, or improves while the condition is pending, Civil Code rules on conditional obligations apply.

The specific identity of the object remains important because the parties contemplated that exact thing.

XLVII. Determinate Thing in Obligations With a Period

An obligation may involve delivery of a specific thing on a future date.

Example:

A shall deliver to B the specific car on December 1.

Before the period arrives, the debtor must preserve the thing with proper diligence. If the thing is lost before the due date without debtor’s fault, the obligation may be extinguished. If due to debtor’s fault, damages may be due.

XLVIII. Determinate Thing and Resolutory Conditions

If ownership or rights over a specific thing are subject to a resolutory condition, the happening of the condition may require return of the thing.

Example:

A transfers a specific property to B, but the transfer will be revoked if a stated condition occurs.

If the condition happens, rules on return, fruits, deterioration, loss, and improvements may apply.

XLIX. Determinate Thing and Sale by Non-Owner

A sale may involve a determinate thing even if the seller is not the owner. The issue then becomes whether the seller can transfer ownership and what remedies the buyer has.

Example:

A sells B a specific car that actually belongs to C. The car is determinate, but A may be unable to transfer valid ownership.

Depending on the facts, the buyer may sue for breach, damages, warranty against eviction, or other remedies.

L. Double Sale of a Determinate Thing

A determinate thing may be sold to different buyers. The Civil Code contains rules on double sale.

For movable property, ownership generally belongs to the buyer who first takes possession in good faith.

For immovable property, priority may depend on registration in good faith, possession in good faith, or oldest title in good faith, depending on the circumstances.

Double sale rules apply because the same determinate object cannot be fully owned by multiple buyers at the same time.

Example:

A sells the same titled land to B and C. The land is determinate. The law determines who has better right.

LI. Determinate Thing and Risk of Loss in Sale

Risk of loss in sale can be complex. The analysis may involve:

Whether the thing is determinate;
Whether the sale was perfected;
Whether delivery occurred;
Whether ownership transferred;
Whether the debtor was at fault;
Whether the debtor was in delay;
Whether the contract allocated risk;
Whether the thing was lost before or after perfection.

A specific thing may be lost before delivery. The consequences depend on the stage of the transaction and the applicable provisions.

LII. Determinate Thing and Perfection of Contract

A contract of sale is generally perfected by consent as to object and price. Delivery is not necessary for perfection.

Thus, a sale of a specific thing may be perfected even before delivery.

Example:

A and B agree that A sells to B a specific motorcycle for ₱80,000. The sale is perfected when they agree on the object and price, even if delivery and payment will happen later.

However, ownership is generally transferred by delivery, not mere perfection.

LIII. Determinate Thing and Ownership

A determinate thing can be the object of ownership, possession, lease, pledge, mortgage, usufruct, easement, or other rights.

The fact that a thing is determinate does not by itself determine ownership. It only identifies the object. Ownership depends on title, law, contract, delivery, succession, accession, prescription, or other legal mode.

Example:

A specific car may be determinate, but the question of who owns it depends on registration, sale, delivery, documents, and possession.

LIV. Determinate Thing and Possession

Possession may help identify or protect rights over a specific thing.

A possessor of a specific movable may have presumptions in their favor. A possessor of land may have rights depending on title, good faith, length of possession, and other rules.

If an obligation involves a specific thing, the party in possession may be required to preserve and deliver it.

LV. Determinate Thing and Ownership Documents

Documents often help determine the specific identity of a thing.

Examples:

Certificate of title for land;
Condominium certificate of title;
Official receipt and certificate of registration for motor vehicles;
Serial number records;
Warehouse receipts;
Stock certificates;
Invoices;
Bills of lading;
Receipts;
Deeds of sale;
Insurance policies.

However, documents may be evidence of identity or ownership, but the legal effect depends on the transaction and applicable law.

LVI. Determinate Thing and Fungible Things

A thing may be fungible or non-fungible. Fungible things are replaceable by others of the same kind, quality, and quantity.

Examples of fungible things:

Rice;
Sugar;
Oil;
Money;
Gasoline;
Shares of the same class;
Standard commercial goods.

But even a fungible thing can become determinate if segregated or identified.

Example:

“100 liters of gasoline” is generic. “The 100 liters of gasoline contained in Tank No. 5 and sealed for Buyer X” may be determinate.

LVII. Money as a Thing

Money is usually treated as generic. An obligation to pay money is ordinarily not an obligation to deliver specific bills or coins.

Example:

If A owes B ₱10,000, A may pay using any legal tender of the proper amount. A need not deliver the exact bills originally contemplated.

However, money may be specific if the parties refer to particular bills or coins as collectibles or identified objects.

Example:

“The 1906 Philippine peso coin with serial or identifying marks in A’s collection” is specific.

LVIII. Consumable and Non-Consumable Things

Consumable things are those consumed by use, such as food, fuel, and money.

Non-consumable things can be used without being consumed, such as land, cars, furniture, and appliances.

A consumable thing can be generic or specific.

Example:

Generic consumable: “one sack of rice.” Specific consumable: “the sack of rice marked No. 15 stored in my kitchen.”

A non-consumable thing can also be generic or specific.

Generic non-consumable: “one chair.” Specific non-consumable: “the antique narra chair in my living room.”

LIX. Determinate Thing in Obligations to Return

In obligations to return, the thing is often specific.

Examples:

Return of a borrowed car;
Return of deposited jewelry;
Return of leased equipment;
Return of pledged property after payment;
Return of a specific title document;
Return of a child’s school records or personal belongings in appropriate cases.

The debtor must return the identical thing received, subject to ordinary wear and tear or agreed use.

LX. Determinate Thing in Restitution

Restitution may require return of a specific thing.

Examples:

Annulled contract requiring return of the object delivered;
Rescission requiring mutual restitution;
Recovery of possession;
Return of property obtained by mistake;
Return of property wrongfully detained.

If the specific thing cannot be returned due to loss, deterioration, or transfer to third persons, damages or substitute remedies may apply.

LXI. Determinate Thing in Quasi-Contracts

In quasi-contracts such as solutio indebiti, a person who receives something by mistake may be required to return it.

If the thing received is specific, the recipient must return that exact thing if possible.

Example:

A mistakenly delivers a specific painting to B. B must return the painting, not another painting.

If return is impossible due to fault, damages may be due.

LXII. Determinate Thing in Torts

A tort may involve damage to a specific thing.

Examples:

Negligent destruction of a specific vehicle;
Damage to a specific house;
Loss of a specific phone;
Injury to a specific animal;
Destruction of a specific crop or equipment.

Civil liability may include repair cost, replacement value, loss of use, sentimental value in limited cases, attorney’s fees where allowed, and other damages depending on proof.

LXIII. Determinate Thing in Criminal Cases

Some crimes involve specific things, such as theft, robbery, estafa, malicious mischief, carnapping, or arson.

While criminal law uses its own rules, civil liability may involve restitution of the specific thing or payment of its value if restitution is impossible.

Example:

If a specific motorcycle is stolen and recovered, it may be returned to the owner. If it is destroyed, the offender may be ordered to pay its value.

LXIV. Determinate Thing and Insurance

Insurance often covers specific property.

Examples:

A specific vehicle insured under a motor policy;
A specific house insured against fire;
A specific cargo shipment;
Specific equipment listed in a policy.

The identity of the insured object matters. If the insured specific thing is lost due to a covered peril, the insurer’s liability depends on the policy.

LXV. Determinate Thing in Real Estate Transactions

Real estate is usually treated as determinate when identified by title, location, boundaries, tax declaration, lot number, or technical description.

A real estate contract should identify the property clearly to avoid disputes.

Important identifiers include:

Transfer Certificate of Title number;
Condominium Certificate of Title number;
Lot and block number;
Survey plan;
Tax declaration;
Exact address;
Area;
Boundaries;
Registered owner;
Registry of Deeds location.

An unclear description may make the object merely determinable or, in serious cases, uncertain.

LXVI. Determinate Thing in Condominium Sales

A condominium unit may be determinate if identified by project, tower, floor, unit number, and title or contract documents.

Example:

“Unit 18-C, Tower 2, ABC Residences, with parking slot P-45.”

If the buyer merely agrees to buy “a one-bedroom unit in the project,” the object may be determinable if the contract provides a method of assignment, but not yet specific until the unit is allocated.

LXVII. Determinate Thing in Subdivision Lots

A subdivision lot is determinate if identified by lot number, block number, survey plan, area, and title.

Example:

“Lot 5, Block 10, Phase 2 of XYZ Subdivision, covered by TCT No. 12345.”

If the contract says only “one lot in the subdivision,” more detail may be needed unless the contract provides a definite selection mechanism.

LXVIII. Determinate Thing in Movable Sales

For movables, clear identification avoids disputes.

Common identifiers include:

Brand;
Model;
Serial number;
Plate number;
Engine number;
Chassis number;
Color;
Year model;
Physical condition;
Location;
Accessories;
Photos;
Inventory tag.

Example:

A sale of “one laptop” is generic. A sale of “the MacBook Pro 14-inch, Serial No. XYZ, currently in Seller’s office” is determinate.

LXIX. Determinate Thing in Agricultural Products

Agricultural products are often generic but may become determinate when segregated.

Generic:

“1,000 kilos of mangoes.”

Determinate:

“The 1,000 kilos of mangoes harvested from Farm A on May 1, packed in crates numbered 1 to 100 and stored in Cold Room 2.”

Agricultural contracts should specify whether the buyer is buying from a particular harvest or from any available supply.

LXX. Determinate Thing in Warehouse and Storage Transactions

Goods in warehouses may be determinate if properly identified.

Examples:

Goods under a warehouse receipt;
Goods tagged with buyer’s name;
Goods stored in a specific bay;
Goods separated from bulk;
Goods with lot or batch numbers.

If goods are mixed with identical goods of others, the rights of parties may depend on warehouse law, contract, co-ownership concepts, or commercial practice.

LXXI. Determinate Thing in Construction Contracts

Construction contracts may involve determinate objects such as:

A specific building to be constructed on a specific lot;
Specific equipment to be installed;
Specific materials purchased for the project;
A particular unit to be turned over.

A building not yet constructed may be determinable if the plans and specifications identify what must be built.

Example:

“The four-bedroom house to be constructed on Lot 12, Block 8 according to Plans A-1 to A-10.”

LXXII. Determinate Thing in Donation

A donation may involve a specific thing.

Examples:

Donation of a specific parcel of land;
Donation of a specific vehicle;
Donation of a specific artwork;
Donation of a particular sum of money.

Formal requirements depend on whether the object is movable or immovable. For immovable property, donation must comply with strict form requirements.

LXXIII. Determinate Thing in Dacion en Pago

Dacion en pago, or payment by property, often involves a specific thing given in satisfaction of a debt.

Example:

A debtor transfers a specific car to the creditor as payment of a ₱500,000 debt.

The thing must be identified, valued, and delivered according to the agreement.

LXXIV. Determinate Thing in Novation

An obligation may be novated by changing the object.

Example:

Original obligation: A must deliver a specific motorcycle. New obligation: A will instead pay ₱100,000.

If the parties validly agree, the obligation changes. Without creditor consent, the debtor cannot unilaterally substitute the specific thing.

LXXV. Determinate Thing in Payment

Payment means complete performance of the obligation. If the obligation is to deliver a determinate thing, payment occurs only by delivery of that exact thing, together with its accessories and accessions when applicable.

Delivering another thing, even if more valuable, is not payment unless the creditor accepts it.

LXXVI. Determinate Thing in Tender of Payment and Consignation

If the creditor unjustly refuses to receive a determinate thing, the debtor may need legal procedures to release himself from liability. Depending on the nature of the obligation, consignation or deposit may be relevant.

For money, consignation is more straightforward. For specific things, practical custody, preservation, and court procedures may be involved.

LXXVII. Determinate Thing and Impossibility of Performance

If the specific thing is destroyed, delivery becomes impossible. The legal effect depends on fault, delay, assumption of risk, and timing.

If impossibility is without fault and before delay, the debtor may be released.

If impossibility is caused by the debtor, the debtor is liable.

If the debtor promised to deliver despite any event, the debtor may still be liable under the contract.

LXXVIII. Determinate Thing and Damages

Damages may be awarded when the debtor fails to deliver, damages, loses, or wrongfully disposes of a determinate thing.

Possible damages include:

Value of the thing;
Difference in value;
Repair cost;
Loss of use;
Consequential damages;
Attorney’s fees where allowed;
Moral damages in proper cases;
Exemplary damages in cases involving wanton, fraudulent, or oppressive conduct;
Interest, if applicable.

The creditor must prove the basis and amount of damages.

LXXIX. Determinate Thing and Warranties

In sale of specific things, warranties may include:

Warranty against eviction;
Warranty against hidden defects;
Express warranties;
Implied warranties;
Warranty of title;
Warranty of quality, where applicable;
Consumer law warranties, if applicable.

The fact that the thing is specific does not eliminate warranty obligations unless validly waived within legal limits.

Example:

A buyer of a specific second-hand car may still have remedies if the seller concealed serious defects.

LXXX. Specific Thing Sold “As Is, Where Is”

A specific thing may be sold “as is, where is.” This means the buyer accepts the thing in its existing condition and location, subject to the exact wording and legal limits.

However, “as is, where is” does not necessarily protect the seller from:

Fraud;
Bad faith;
Misrepresentation;
Concealed defects known to the seller;
Lack of title;
Violation of consumer protection laws;
Express warranties.

The object remains determinate; the clause affects warranties and risk allocation.

LXXXI. Determinate Thing and Public Instruments

For immovable property and certain important transactions, the law may require or strongly favor documentation in a public instrument.

A public instrument can also serve as constructive delivery in certain cases.

Example:

Execution of a notarized deed of sale over a specific parcel of land may amount to constructive delivery, unless the parties intended otherwise or the seller lacked control.

The property must be sufficiently identified.

LXXXII. Determinate Thing and Registration

Registration is important for certain determinate things.

Examples:

Land registration for titled property;
Motor vehicle registration;
Chattel mortgage registration;
Intellectual property registration;
Ship or aircraft registration.

Registration may affect ownership, priority, notice to third persons, enforceability, or validity against third parties.

A thing may be determinate even without registration, but registration often helps identify and protect rights.

LXXXIII. Determinate Thing and Intellectual Property

Intellectual property rights may be determinate if specifically identified.

Examples:

A registered trademark with registration number;
A copyright over a specific work;
A patent with patent number;
A domain name;
A specific software license.

The object is intangible, but rights over it can be specific and legally identifiable.

LXXXIV. Determinate Thing and Shares of Stock

Shares may be generic or specific depending on description.

Generic:

“1,000 shares of San Miguel Corporation common stock.”

Specific:

“Stock Certificate No. 123 covering 1,000 shares registered in the name of X.”

In many market transactions, shares are fungible. But certificates or specifically identified shares may be treated as determinate for certain purposes.

LXXXV. Determinate Thing and Digital Assets

Civil law concepts can apply by analogy to digital assets when the asset is identifiable.

Examples:

A specific domain name;
A specific account, subject to platform rules;
A specific digital file;
A specific cryptocurrency wallet asset, though legal treatment may vary;
A specific NFT, if legally recognized in the transaction.

The key is whether the object or right is sufficiently identified and legally transferable.

LXXXVI. Determinate Thing and Evidence

To prove that a thing is determinate, useful evidence includes:

Contract;
Deed of sale;
Title;
Serial number;
Photos;
Inventory;
Receipts;
Registration documents;
Warehouse receipt;
Appraisal report;
Witness testimony;
Location records;
Delivery records;
Correspondence;
Insurance policy;
Inspection report.

The more unique or valuable the thing, the more important precise identification becomes.

LXXXVII. Drafting Contracts Involving Specific Things

A contract involving a specific thing should clearly state:

Exact description of the thing;
Owner or possessor;
Location;
Title or registration number;
Serial or identifying numbers;
Condition;
Included accessories;
Excluded items;
Delivery date;
Place of delivery;
Risk of loss;
Responsibility for preservation;
Warranties;
Payment terms;
Remedies for loss or non-delivery.

Poor drafting may create disputes over whether the object was specific or generic.

LXXXVIII. Sample Contract Description

For a vehicle:

The object of this sale is the Seller’s 2020 Toyota Vios 1.3 XLE, color white, bearing Plate No. ABC 1234, Engine No. 1NR-XXXXX, Chassis No. PA1BXXXXX, registered under Certificate of Registration No. [number], together with its keys, spare tire, tools, and registration documents.

For land:

The object of this sale is the parcel of land located at [address], covered by Transfer Certificate of Title No. [number], containing an area of [area] square meters, more or less, registered in the name of [owner], including all improvements thereon unless otherwise excluded.

For goods:

The object of this sale is the 500 sacks of premium rice, 50 kilograms each, from Batch No. R-2026-01, presently stored in Warehouse B, Rows 3 to 5, and marked with Buyer’s initials.

LXXXIX. Common Mistakes

Common mistakes include:

Describing a thing too vaguely;
Failing to state serial numbers;
Failing to identify land by title;
Confusing generic and specific obligations;
Assuming ownership transfers by mere agreement;
Ignoring delivery requirements;
Failing to allocate risk of loss;
Failing to mention accessories;
Selling a thing not owned or controlled;
Not documenting condition before delivery;
Not clarifying whether goods are from a particular stock;
Using “as is” clauses without understanding their limits.

XC. Common Legal Questions

1. Is a car a specific thing?

A car is specific if identified as a particular car, such as by plate number, engine number, chassis number, VIN, registration, or physical description. “A car” is generic. “My Toyota Fortuner with Plate No. ABC 123” is specific.

2. Is land always a specific thing?

Land is usually specific if identified by location, title, boundaries, or technical description. But “a lot in Cavite” is not yet specific unless the contract provides a way to determine the exact lot.

3. Is money a specific thing?

Usually no. Money obligations are generally generic. But rare coins or identified bills treated as collectibles may be specific.

4. Can generic goods become specific?

Yes. Generic goods become specific when selected, separated, marked, delivered, or otherwise identified as the goods subject of the obligation.

5. What happens if a specific thing is lost?

If lost without debtor’s fault and before delay, the obligation to deliver may be extinguished. If lost through debtor’s fault or after delay, the debtor may be liable for damages.

6. What happens if a generic thing is lost?

The obligation generally remains because the debtor can deliver another thing of the same kind and quality.

7. Can the debtor deliver a substitute?

Not if the obligation is to deliver a specific thing, unless the creditor consents.

8. Can the creditor demand a different thing?

No. The creditor is entitled to what was agreed upon, not a different object, unless the debtor agrees or the law allows it.

9. Does the creditor own the specific thing before delivery?

Usually, the creditor has a personal right to demand delivery before delivery. Ownership or real right generally transfers upon delivery, depending on the transaction.

10. Why is identification important?

Because it determines what must be delivered, who bears risk, what remedies apply, and whether the obligation is extinguished by loss.

XCI. Practical Checklist

To determine whether a thing is specific or determinate, ask:

Is the exact thing identified?
Can it be distinguished from all others of the same kind?
Is it described by title, serial number, location, name, mark, or physical segregation?
Did the parties intend that exact thing?
Can another thing be substituted without changing the obligation?
Has the thing been separated from a larger mass?
Does the contract refer to “this thing” or merely “a thing of this kind”?
Is the object unique, registered, titled, or marked?
Is the source limited to a particular stock?
What remedy did the parties contemplate if it is lost?

If the answer shows that only one exact object satisfies the obligation, the thing is specific or determinate.

XCII. Key Legal Effects

A specific or determinate thing has the following legal effects:

The debtor must deliver the exact thing.
The debtor must preserve it with proper diligence.
The creditor may compel specific delivery.
The debtor must deliver accessions and accessories.
Substitution is not allowed without consent.
Loss without fault before delay may extinguish the obligation.
Loss due to fault creates liability for damages.
Loss after delay may still create liability.
Ownership generally requires delivery.
The object’s identity is central to the obligation.

XCIII. Conclusion

A specific or determinate thing in Philippine civil law is a thing particularly designated or physically segregated from all others of the same class. It is the exact object contemplated by the obligation or contract.

The distinction between determinate and generic things is not merely academic. It determines the debtor’s duty to preserve, the creditor’s right to compel delivery, the effect of loss, the availability of specific performance, the rules on accessions and accessories, and the timing of ownership or real rights.

The simplest test is this: If the debtor must deliver that exact thing and no substitute will do without the creditor’s consent, the thing is specific or determinate. If the debtor may deliver any item of the same kind and quality, the thing is generic or indeterminate.

In Philippine civil law, careful identification of the object is essential. It prevents disputes, clarifies remedies, allocates risk, and ensures that the parties know exactly what must be delivered, preserved, returned, or transferred.