Introduction

Obligations are central to Philippine civil law. Every contract, loan, sale, lease, service agreement, settlement, damages claim, family support duty, and many other legal relationships involve obligations.

Under the Civil Code of the Philippines, an obligation is a juridical necessity to give, to do, or not to do. This means that a person who is bound by an obligation may be compelled by law to perform it, and failure to perform may result in liability.

The law classifies obligations in several ways. These classifications matter because the rights and remedies of the parties differ depending on the kind of obligation involved. For example, the rules for a pure obligation are different from those for a conditional obligation; the rules for a divisible obligation differ from those for an indivisible obligation; and the consequences of breach may differ depending on whether the obligation is to give, to do, or not to do.

This article discusses the principal kinds of obligations under Philippine civil law, their legal effects, examples, and practical consequences.

I. Meaning of Obligation

An obligation is a legal relation where one person, called the debtor or obligor, is bound to perform a prestation in favor of another person, called the creditor or obligee.

The prestation may consist of:

Giving something;
Doing something; or
Not doing something.

An obligation is not merely a moral duty. It is enforceable by law, unless it falls under special categories such as natural obligations, which are not enforceable by court action but may produce legal effects when voluntarily performed.

II. Essential Elements of an Obligation

An obligation generally has four elements:

1. Active Subject

The active subject is the creditor or obligee. This is the person who has the right to demand performance.

Example: In a loan, the lender is the creditor who can demand payment.

2. Passive Subject

The passive subject is the debtor or obligor. This is the person who has the duty to perform.

Example: In a loan, the borrower is the debtor who must pay.

3. Object or Prestation

The object is the conduct required of the debtor. It may be to give, to do, or not to do.

Example: Deliver a car, pay money, build a house, or refrain from constructing a wall.

4. Juridical Tie

The juridical tie is the legal bond that connects the creditor and debtor. It is the reason why the debtor can be compelled to perform.

Example: A contract of sale creates a juridical tie between seller and buyer.

III. Sources of Obligations

Before discussing kinds of obligations, it is important to understand where obligations come from.

Under Philippine civil law, obligations may arise from:

Law;
Contracts;
Quasi-contracts;
Acts or omissions punished by law; and
Quasi-delicts.

1. Obligations Arising from Law

These are obligations imposed directly by statute.

Examples:

Obligation to pay taxes;
Obligation of parents to support their children;
Obligation of spouses to support each other;
Obligation of employers under labor laws.

Obligations arising from law are not presumed. They must be expressly or clearly established by law.

2. Obligations Arising from Contracts

These arise from agreements between parties. Once a contract is valid, it has the force of law between the parties.

Examples:

Buyer must pay the price;
Seller must deliver the thing sold;
Lessee must pay rent;
Contractor must complete the project.

3. Obligations Arising from Quasi-Contracts

Quasi-contracts are lawful, voluntary, and unilateral acts that create obligations to prevent unjust enrichment.

Common examples:

Negotiorum gestio: A person voluntarily manages another’s property or business without authority.
Solutio indebiti: A person receives something by mistake and must return it.

4. Obligations Arising from Crimes

A person who commits a crime may incur civil liability in addition to criminal liability.

Examples:

Restitution;
Reparation of damage;
Indemnification for consequential damages.

5. Obligations Arising from Quasi-Delicts

A quasi-delict is a negligent act or omission causing damage to another, where there is no pre-existing contractual relation between the parties.

Example: A driver negligently hits a pedestrian. The driver may be civilly liable for damages.

IV. Principal Classification: Obligations to Give, To Do, and Not To Do

The most basic classification of obligations is based on the prestation required.

A. Obligation to Give

An obligation to give requires the debtor to deliver a thing to the creditor.

Examples:

Seller must deliver the car sold;
Borrower must return the thing borrowed;
Donor must deliver the donated property;
Debtor must pay money;
Lessor must deliver the leased premises.

Obligations to give may involve either a determinate thing or a generic thing.

B. Obligation to Give a Determinate Thing

A determinate thing, also called a specific thing, is particularly designated or physically segregated from all others of the same class.

Example: “The Toyota Vios with plate number ABC 1234.”

Duties of the debtor who must deliver a determinate thing include:

Preserve the thing with the diligence of a good father of a family;
Deliver the thing itself;
Deliver the fruits from the time the obligation to deliver arises;
Deliver accessions and accessories;
Answer for damages in case of fraud, negligence, delay, or breach.

Example

If Juan sells to Maria his specific watch, Juan must take care of that particular watch until delivery. He cannot deliver another watch of the same brand without Maria’s consent.

C. Obligation to Give a Generic Thing

A generic thing is identified only by class or kind.

Example: “A sack of rice,” “one laptop,” or “ten kilos of sugar.”

In generic obligations, the debtor may deliver any thing belonging to the agreed class, provided it is of the quality contemplated by the parties.

A key rule is that genus never perishes. If one item is lost, the debtor may still be required to deliver another item of the same kind.

Example

If Pedro promises to deliver one sack of ordinary rice, he cannot escape liability by saying that the particular sack he intended to deliver was destroyed. He can still deliver another sack of ordinary rice.

D. Obligation to Do

An obligation to do requires the debtor to perform an act or service.

Examples:

Contractor must build a house;
Artist must paint a portrait;
Lawyer must render legal services;
Mechanic must repair a vehicle;
Employee must perform assigned work.

If the debtor fails to do what he promised, the creditor may ask that the act be done at the debtor’s expense, unless the obligation is personal and cannot be compelled without violating personal liberty.

If the act is done poorly, it may be ordered undone or corrected at the debtor’s expense.

E. Obligation Not to Do

An obligation not to do requires the debtor to refrain from doing something.

Examples:

A seller agrees not to compete within a certain area;
A tenant agrees not to sublease the property;
A landowner agrees not to build beyond a certain height;
A party agrees not to disclose confidential information.

If the debtor violates the obligation, the creditor may demand that what was done be undone, if still possible, and may also claim damages.

V. Pure and Conditional Obligations

Another important classification is based on whether the obligation is subject to a condition.

A. Pure Obligation

A pure obligation is one whose performance does not depend on a future or uncertain event and is not subject to a period.

It is demandable at once.

Example

“I promise to pay you ₱100,000.”

If no condition or period is stated, the creditor may generally demand payment immediately, subject to the nature of the obligation and surrounding circumstances.

B. Conditional Obligation

A conditional obligation depends on a future and uncertain event, or upon a past event unknown to the parties.

The condition affects either the birth or extinguishment of the obligation.

Example

“I will give you ₱100,000 if you pass the bar examination.”

Passing the bar examination is a future uncertain event. The obligation depends on the happening of that condition.

C. Suspensive Condition

A suspensive condition gives rise to the obligation only upon the happening of the condition.

Before the condition happens, the creditor has only an expectancy, not yet a demandable right.

Example

“I will sell you my land if my loan is approved.”

The obligation to sell becomes effective only if the loan is approved.

D. Resolutory Condition

A resolutory condition extinguishes an obligation that is already effective.

Example

“You may use my condominium until my daughter returns from abroad.”

The right to use the condominium exists now but ends when the daughter returns.

E. Potestative, Casual, and Mixed Conditions

Conditions may also be classified according to whose will or act controls them.

1. Potestative Condition

A potestative condition depends upon the will of one of the parties.

If a suspensive condition depends solely on the debtor’s will, the obligation is generally void because the debtor can prevent the obligation from arising.

Example: “I will pay you if I want to.”

2. Casual Condition

A casual condition depends on chance or the will of a third person.

Example: “I will give you ₱50,000 if it rains tomorrow.”

3. Mixed Condition

A mixed condition depends partly on the will of a party and partly on chance or the will of a third person.

Example: “I will pay you a bonus if you win the contest judged by an independent panel.”

F. Impossible and Illegal Conditions

A condition that is physically impossible, legally impossible, or contrary to law, morals, good customs, public order, or public policy may affect the validity of the obligation.

If the condition is attached to an obligation to give and is impossible or illegal, the obligation may be annulled or treated as void, depending on the circumstances.

VI. Obligations with a Period

An obligation with a period is one whose demandability or extinguishment depends on a future and certain event.

The event is certain to happen, although the exact date may or may not be known.

A. Difference Between Period and Condition

A condition is future and uncertain.

A period is future and certain.

Example of condition: “I will pay you if my business earns profit.”

Example of period: “I will pay you on December 31.”

B. Suspensive Period

A suspensive period delays the demandability of the obligation.

Example

“I will pay you ₱100,000 on June 30, 2026.”

The obligation exists, but the creditor cannot demand payment before June 30, 2026.

C. Resolutory Period

A resolutory period terminates the obligation upon arrival of the period.

Example

“You may occupy the apartment until December 31, 2026.”

The right exists now but ends on December 31, 2026.

D. Period for the Benefit of Both Parties

As a general rule, when a period is fixed, it is presumed to benefit both the creditor and the debtor, unless the nature of the obligation or circumstances show otherwise.

This means the debtor cannot be compelled to perform before the period, and the creditor cannot be compelled to accept premature performance.

E. When the Debtor Loses the Benefit of the Period

The debtor may lose the right to use the period in certain cases, such as:

Insolvency, unless security is given;
Failure to provide promised security;
Impairment of security through the debtor’s acts;
Violation of undertakings;
Attempt to abscond.

When the debtor loses the benefit of the period, the obligation may become immediately demandable.

VII. Alternative and Facultative Obligations

These obligations involve more than one possible prestation.

A. Alternative Obligation

An alternative obligation requires the performance of one of several prestations.

Example

“I will deliver either my car, my motorcycle, or ₱300,000.”

The debtor is bound to perform only one prestation, unless the right of choice is given to the creditor.

As a general rule, the debtor has the right of choice, unless the law or agreement provides otherwise.

The choice becomes effective only when communicated.

B. Loss of Objects in Alternative Obligations

The effect of loss depends on:

Who has the right of choice;
Whether the loss was due to fortuitous event or debtor’s fault;
Whether all or only some of the prestations were lost.

If only one prestation remains, the obligation may become simple and the remaining prestation must be performed.

C. Facultative Obligation

A facultative obligation has only one principal prestation, but the debtor may substitute another prestation.

Example

“I will deliver my laptop, but I may instead pay ₱50,000.”

Only the laptop is due. The ₱50,000 is merely a substitute that the debtor may choose to give.

D. Difference Between Alternative and Facultative Obligations

In an alternative obligation, several prestations are due, but performance of one is sufficient.

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

This distinction matters in case of loss. In a facultative obligation, if the principal thing is lost without the debtor’s fault before substitution, the obligation may be extinguished. The substitute is not due unless substitution has been validly made.

VIII. Joint and Solidary Obligations

This classification applies when there are multiple debtors, multiple creditors, or both.

A. Joint Obligation

A joint obligation is one where each debtor is liable only for his proportionate share, and each creditor can demand only his proportionate share.

Joint obligation is the general rule.

Example

A, B, and C jointly owe X ₱90,000.

Unless solidarity is stated or required by law, each debtor generally owes only ₱30,000.

X cannot demand the entire ₱90,000 from A alone.

B. Solidary Obligation

A solidary obligation is one where each debtor may be liable for the whole obligation, or each creditor may demand the whole obligation, depending on the kind of solidarity.

Solidarity is not presumed. It exists only when:

The obligation expressly states it;
The law requires solidarity;
The nature of the obligation requires solidarity.

Common words indicating solidarity include:

Jointly and severally;
Solidarily;
In solidum;
Individually and collectively.

Example

A, B, and C solidarily owe X ₱90,000.

X may demand the entire ₱90,000 from A alone. A may later seek reimbursement from B and C for their shares.

C. Active Solidarity

Active solidarity exists among creditors. Any one creditor may demand the entire performance from the debtor, subject to accounting with the other creditors.

Example

D owes ₱100,000 solidarily to X and Y. X may collect the entire ₱100,000, but must account to Y for Y’s share.

D. Passive Solidarity

Passive solidarity exists among debtors. Any debtor may be compelled to perform the entire obligation.

Example

A, B, and C are solidarily liable to X for ₱300,000. X may collect the entire amount from any one of them.

E. Mixed Solidarity

Mixed solidarity exists when there are several creditors and several debtors, and solidarity exists on both sides.

F. Importance of Solidarity

Solidarity is powerful because it allows the creditor to collect the whole obligation from one debtor. It is common in loan agreements, guarantees, surety arrangements, tort liability, and commercial contracts.

A person who signs a solidary obligation should understand that he may be made to pay more than his personal share, subject only to reimbursement from co-debtors.

IX. Divisible and Indivisible Obligations

This classification concerns whether the prestation can be partially performed.

A. Divisible Obligation

An obligation is divisible when the prestation can be performed in parts without changing its essence or value.

Examples

Payment of money in installments;
Delivery of several sacks of rice;
Construction work divided into phases;
Delivery of 100 units of goods in batches.

B. Indivisible Obligation

An obligation is indivisible when it cannot be validly performed in parts.

Examples

Delivery of a specific car;
Delivery of a specific painting;
Obligation to execute a deed of sale;
Obligation to build a complete house where partial delivery does not satisfy the agreement.

C. Legal Significance

Divisibility affects performance, breach, and remedies.

If an obligation is indivisible, the debtor cannot force the creditor to accept partial performance.

If divisible, partial performance may be allowed if the law, contract, or nature of the obligation permits it.

X. Obligations with a Penal Clause

An obligation with a penal clause includes an accessory undertaking to pay a penalty in case of breach.

The penalty may serve as:

A substitute for damages;
A form of liquidated damages;
A deterrent against breach;
Security for performance.

Example

“If the contractor fails to finish the project by June 30, the contractor shall pay ₱10,000 per day of delay.”

A. Penalty as Substitute for Damages

As a general rule, the penalty substitutes for damages and interest in case of breach, unless the parties agree otherwise or the debtor is guilty of fraud.

This means the creditor does not always need to prove actual damages if a valid penalty is agreed upon.

B. When Additional Damages May Be Recovered

Additional damages may be recovered when:

The parties expressly agreed that damages may be recovered in addition to the penalty;
The debtor refuses to pay the penalty;
The debtor is guilty of fraud.

C. Reduction of Penalty

Courts may reduce the penalty when:

The principal obligation has been partly or irregularly performed;
The penalty is iniquitous or unconscionable.

This is important in contracts with excessive penalty charges.

XI. Unilateral and Bilateral Obligations

A. Unilateral Obligation

A unilateral obligation is one where only one party is bound to perform.

Example

A simple donation, once perfected and accepted, may impose an obligation on the donor to deliver the donated property.

B. Bilateral Obligation

A bilateral obligation is one where both parties are reciprocally bound.

Examples

Sale: seller delivers the thing; buyer pays the price.
Lease: lessor allows use of property; lessee pays rent.
Employment: employee works; employer pays wages.

Many contracts create reciprocal obligations.

XII. Reciprocal Obligations

Reciprocal obligations are obligations where each party’s performance is conditioned upon the other’s performance.

Example

In a sale, the seller is bound to deliver the thing, and the buyer is bound to pay the price.

If one party does not perform, the other may refuse to perform or may seek rescission, damages, or specific performance.

A. Remedies in Reciprocal Obligations

When one party fails to comply, the injured party may generally choose between:

Fulfillment of the obligation; or
Rescission of the obligation;

with damages in either case, where proper.

Example

If the buyer does not pay, the seller may demand payment or seek rescission of the sale, depending on the circumstances.

XIII. Civil and Natural Obligations

A. Civil Obligation

A civil obligation gives the creditor a right of action in court to compel performance.

Example

A valid loan agreement creates a civil obligation. If the borrower does not pay, the lender may sue.

B. Natural Obligation

A natural obligation is based on equity and natural law but does not grant a court action to compel performance. However, once voluntarily performed, the debtor cannot generally recover what was delivered or paid.

Example

A debtor voluntarily pays a debt that has already prescribed. The creditor may keep the payment because the debtor voluntarily fulfilled a natural obligation.

C. Importance of Natural Obligations

Natural obligations are important because they explain why certain voluntary payments cannot be recovered, even though the creditor could no longer have compelled payment in court.

XIV. Real and Personal Obligations

A. Real Obligation

A real obligation is an obligation to give.

It involves delivery of a thing.

Example

Seller must deliver a parcel of land or a specific vehicle.

B. Personal Obligation

A personal obligation is an obligation to do or not to do.

Positive Personal Obligation

This is an obligation to do.

Example: A contractor must repair a roof.

Negative Personal Obligation

This is an obligation not to do.

Example: A lessee must not sublease the premises.

XV. Determinate and Generic Obligations

This classification applies to obligations to give.

A. Determinate or Specific Obligation

A determinate obligation involves a specific, identified thing.

Example

“I will deliver the ring with serial number 12345.”

The debtor must deliver that exact thing.

B. Generic Obligation

A generic obligation involves a thing identified only by class or kind.

Example

“I will deliver one brand-new office chair.”

The debtor may deliver any office chair meeting the agreed description.

C. Limited Generic Obligation

A limited generic obligation involves a class limited by certain characteristics.

Example

“I will deliver one of the five laptops in my office.”

The object is not entirely specific, but the class is limited.

XVI. Positive and Negative Obligations

A. Positive Obligation

A positive obligation requires the debtor to give or do something.

Examples:

Pay money;
Deliver goods;
Render service;
Construct a building.

B. Negative Obligation

A negative obligation requires the debtor to refrain from doing something.

Examples:

Do not build;
Do not compete;
Do not disclose;
Do not disturb possession.

XVII. Principal and Accessory Obligations

A. Principal Obligation

A principal obligation can stand by itself.

Example

The borrower’s obligation to pay a loan.

B. Accessory Obligation

An accessory obligation depends on a principal obligation.

Examples

Mortgage;
Pledge;
Guaranty;
Suretyship;
Penal clause;
Interest obligation attached to a loan.

If the principal obligation is extinguished, the accessory obligation is generally also extinguished, subject to special rules.

XVIII. Simple and Compound Obligations

A. Simple Obligation

A simple obligation has only one prestation.

Example

“I will pay you ₱20,000.”

B. Compound Obligation

A compound obligation has several prestations.

Compound obligations may be:

Conjunctive;
Distributive;
Alternative;
Facultative.

C. Conjunctive Obligation

A conjunctive obligation requires the performance of all prestations.

Example

“I will deliver the car, pay ₱50,000, and execute the deed of sale.”

All must be performed.

D. Distributive Obligation

A distributive obligation requires only one of several prestations or allows substitution, depending on whether it is alternative or facultative.

XIX. Individual and Collective Obligations

A. Individual Obligation

There is only one debtor and one creditor.

Example

A owes B ₱10,000.

B. Collective Obligation

There are multiple debtors, multiple creditors, or both.

Collective obligations may be joint or solidary.

XX. Obligations According to Sanction

Obligations may also be classified based on enforceability.

A. Perfect Obligation

A perfect obligation is legally enforceable and supported by a civil action.

Example: A valid and demandable debt.

B. Natural Obligation

A natural obligation is not judicially enforceable, but voluntary performance produces legal effects.

Example: Voluntary payment of a prescribed debt.

C. Moral Obligation

A moral obligation is based on conscience or ethics alone and has no direct civil enforceability unless connected to law or contract.

Example: A moral duty to help a friend financially, without any legal commitment.

XXI. Obligations According to Cause

A. Onerous Obligation

An onerous obligation involves valuable consideration or burden on both sides.

Example: Sale, lease, employment, construction contract.

B. Gratuitous Obligation

A gratuitous obligation is based on liberality or generosity.

Example: Donation.

C. Remuneratory Obligation

A remuneratory obligation is given to reward a service or benefit previously rendered, where the service does not constitute a demandable debt.

Example: A donation made in gratitude for past assistance.

XXII. Obligations According to Performance

A. Instantaneous Obligation

This is performed at one time.

Example: Payment of the full purchase price on signing.

B. Periodic Obligation

This is performed at regular intervals.

Example: Monthly rent.

C. Continuing Obligation

This continues over a period.

Example: Obligation of a tenant to maintain the premises during the lease.

XXIII. Monetary Obligations

A monetary obligation is an obligation to pay money.

Examples:

Loan payment;
Purchase price;
Rent;
Damages;
Salary;
Service fee.

Monetary obligations are usually generic because money of the same legal tender may satisfy the debt.

Important issues include:

Legal interest;
Penalty charges;
inflation clauses;
currency stipulations;
tender of payment;
consignation;
delay;
damages.

XXIV. Obligations Involving Interest

Interest may be:

Monetary interest, compensation for the use or forbearance of money;
Compensatory interest, imposed as damages for delay;
Penalty interest, agreed upon as sanction for breach.

Interest must generally have a legal or contractual basis. In loans or forbearance of money, interest stipulations should be clear.

Courts may reduce unconscionable interest.

XXV. Obligations According to Demandability

A. Demandable at Once

Pure obligations are generally demandable immediately.

B. Demandable Upon Happening of a Condition

Conditional obligations subject to a suspensive condition become demandable only when the condition happens.

C. Demandable Upon Arrival of a Period

Obligations with a suspensive period become demandable when the period arrives.

D. Demandable Upon Demand

Some obligations require demand before delay or default begins, unless demand is unnecessary under the law, contract, or circumstances.

XXVI. Delay, Fraud, Negligence, and Contravention

Kinds of obligations are also affected by how breach occurs.

A debtor may be liable for damages due to:

Fraud;
Negligence;
Delay;
Contravention of the tenor of the obligation.

A. Fraud

Fraud involves deliberate evasion of normal performance.

Responsibility arising from fraud is demandable in all obligations. Waiver of future fraud is void.

B. Negligence

Negligence is failure to observe the required diligence.

The diligence required depends on law, contract, and circumstances. If not specified, the standard is generally the diligence of a good father of a family.

C. Delay

Delay, or mora, occurs when the debtor fails to perform on time after demand, unless demand is not required.

There are different kinds of delay:

Mora solvendi: delay by the debtor;
Mora accipiendi: delay by the creditor in accepting performance;
Compensatio morae: delay in reciprocal obligations.

D. Contravention of the Obligation

This refers to violation of the terms of the obligation.

Example: Delivering inferior goods when the contract requires a specific grade.

XXVII. Fortuitous Events and Obligations

A fortuitous event is an event that could not be foreseen, or though foreseen was inevitable.

As a general rule, no person is responsible for fortuitous events.

However, the debtor may still be liable if:

The law so provides;
The contract so provides;
The nature of the obligation requires assumption of risk;
The debtor is already in delay;
The debtor promised to deliver the same thing to two or more persons with different interests;
The loss was partly due to the debtor’s fault.

Fortuitous events are especially important in obligations to deliver specific things. If a determinate thing is lost without the debtor’s fault before delay, the obligation may be extinguished. But in generic obligations, the debtor usually remains bound because genus does not perish.

XXVIII. Examples by Type of Transaction

1. Contract of Sale

Seller’s obligations:

Deliver the thing sold;
Transfer ownership;
Preserve the thing before delivery;
Warrant against eviction and hidden defects.

Buyer’s obligations:

Pay the price;
Accept delivery.

Kinds involved:

Reciprocal;
Usually bilateral;
Obligation to give;
May be pure, conditional, or with a period.

2. Loan

Borrower’s obligation:

Pay the amount borrowed;
Pay interest if validly stipulated;
Comply with maturity date.

Kinds involved:

Obligation to give;
Monetary;
May be with a period;
May have accessory obligations such as mortgage or guaranty.

3. Lease

Lessor’s obligations:

Deliver the leased property;
Maintain peaceful possession;
Make necessary repairs in proper cases.

Lessee’s obligations:

Pay rent;
Use the property properly;
Return the property after the lease;
Not make unauthorized alterations.

Kinds involved:

Reciprocal;
Continuing;
Periodic;
Positive and negative obligations.

4. Construction Contract

Contractor’s obligations:

Build according to plans;
Complete by deadline;
Follow specifications;
Correct defects.

Owner’s obligations:

Pay contract price;
Provide access or materials if agreed.

Kinds involved:

Obligation to do;
Reciprocal;
May have a penal clause;
May be divisible by project milestones or indivisible as to final completion.

5. Non-Compete or Confidentiality Agreement

Obligations involved:

Obligation not to compete;
Obligation not to disclose confidential information.

Kinds involved:

Negative;
Personal;
Often with penal clause or damages provision.

XXIX. Remedies for Breach Based on Kind of Obligation

The remedy depends on the kind of obligation breached.

A. Breach of Obligation to Give

The creditor may demand:

Specific performance;
Delivery of the thing;
Delivery of fruits, accessions, and accessories;
Damages;
Rescission in reciprocal obligations, where proper.

B. Breach of Obligation to Do

The creditor may demand:

Performance at debtor’s expense;
Correction of defective work;
Damages;
Rescission, if reciprocal and legally proper.

The debtor generally cannot be physically compelled to perform a personal act, but may be liable for damages.

C. Breach of Obligation Not to Do

The creditor may demand:

Undoing of what was done, if possible;
Injunction in proper cases;
Damages;
Rescission, if applicable.

XXX. Extinguishment of Obligations

The kind of obligation also affects how it may be extinguished.

Obligations may be extinguished by:

Payment or performance;
Loss of the thing due;
Condonation or remission;
Confusion or merger of rights;
Compensation;
Novation;
Annulment;
Rescission;
Fulfillment of a resolutory condition;
Prescription;
Other causes provided by law.

A. Payment or Performance

Payment means not only delivery of money but complete performance of the obligation.

B. Loss of the Thing Due

This applies mainly to obligations to deliver a determinate thing. If the specific thing is lost without fault and before delay, the obligation may be extinguished.

C. Condonation

Condonation is the gratuitous forgiveness of a debt.

D. Confusion or Merger

This occurs when creditor and debtor become the same person.

Example: A debtor inherits the credit against himself.

E. Compensation

Compensation occurs when two persons are creditors and debtors of each other, and their obligations are offset.

F. Novation

Novation extinguishes an obligation by replacing it with a new one, changing the object, principal conditions, debtor, or creditor.

XXXI. Practical Importance of Classification

Knowing the kind of obligation helps determine:

When the obligation becomes demandable;
Who may demand performance;
Who may be compelled to perform;
Whether partial performance is acceptable;
Whether the debtor may choose among prestations;
Whether the creditor may collect from one debtor or only proportionate shares;
Whether damages may be recovered;
Whether a penalty may be reduced;
Whether loss of the object extinguishes liability;
Whether a court action is available;
Whether specific performance, rescission, or damages is the proper remedy.

XXXII. Common Drafting Issues in Philippine Contracts

Many disputes arise because contracts are unclear about the kind of obligation created.

Parties should be clear about:

Whether liability is joint or solidary Use clear words if solidary liability is intended.
Whether the obligation has a period State exact due dates.
Whether an event is a condition or merely a term Use precise language.
Who has the right of choice in alternative obligations State whether the debtor or creditor chooses.
Whether partial performance is allowed State milestone and installment rules.
Whether penalties replace or supplement damages State whether the penalty is exclusive or cumulative.
What standard of diligence applies State required care and responsibility.
What happens in fortuitous events Allocate risk clearly.
Whether interest applies State rate, basis, and when it begins.
What remedies are available upon breach State whether rescission, acceleration, liquidated damages, or specific performance may be used.

XXXIII. Frequently Asked Questions

1. What are the three basic kinds of obligations?

The three basic kinds are obligations to give, to do, and not to do.

2. What is a pure obligation?

A pure obligation is not subject to any condition or period and is generally demandable at once.

3. What is a conditional obligation?

A conditional obligation depends on a future and uncertain event or a past event unknown to the parties.

4. What is an obligation with a period?

It is an obligation whose demandability or extinguishment depends on a future and certain event.

5. What is the difference between joint and solidary obligations?

In a joint obligation, each debtor is liable only for his share. In a solidary obligation, one debtor may be made to pay the entire obligation, subject to reimbursement from co-debtors.

6. Is solidarity presumed?

No. Solidarity must be expressly stated, required by law, or required by the nature of the obligation.

7. What is an alternative obligation?

It is an obligation where several prestations are due, but performance of one is sufficient.

8. What is a facultative obligation?

It is an obligation where only one prestation is due, but the debtor may substitute another.

9. What is a divisible obligation?

It is an obligation that can be performed in parts without changing the essence of the prestation.

10. What is an indivisible obligation?

It is an obligation that cannot be validly performed in parts.

11. What is a penal clause?

It is an accessory undertaking imposing a penalty in case of breach.

12. Can a penalty be reduced by the court?

Yes, especially when there has been partial or irregular performance or the penalty is unconscionable.

13. What is a natural obligation?

It is an obligation not enforceable by court action but whose voluntary performance produces legal effects.

14. What happens if a specific thing is lost?

If the determinate thing is lost without the debtor’s fault and before delay, the obligation may be extinguished. If the debtor is at fault or in delay, the debtor may be liable.

15. What happens if a generic thing is lost?

The obligation generally remains because a generic thing can be replaced by another of the same kind.

Conclusion

Under Philippine civil law, obligations are classified in many ways because different rules apply depending on the nature of the prestation, the number of parties, the presence of conditions or periods, the manner of performance, and the remedies available upon breach.

The most basic classification is the obligation to give, to do, or not to do. From there, obligations may be pure or conditional, with a period, alternative or facultative, joint or solidary, divisible or indivisible, with a penal clause, civil or natural, principal or accessory, unilateral or bilateral, and positive or negative.

These classifications are not merely academic. They determine when an obligation can be enforced, who may enforce it, who may be made liable, whether partial performance is valid, whether damages may be claimed, and whether the obligation is extinguished by loss, payment, rescission, prescription, or other legal causes.

For parties entering contracts or resolving disputes, the precise kind of obligation matters. A carefully drafted obligation can prevent uncertainty, while an unclear one can lead to litigation, delayed performance, or unexpected liability.