Book IV runs from Article 1156 to Article 2270 and is the largest part of the Civil Code — roughly half of it. It begins with obligations in the abstract: how they arise, what happens when a party fails to perform, and when they are extinguished. It then turns to contracts in general, and after that to the named contracts one at a time: sale, lease, partnership, agency, loan, deposit, guaranty, mortgage and pledge. Its last Titles are the ones people reach without realising it — quasi-contracts, quasi-delicts, and damages. Nearly every money claim, broken agreement, unpaid debt, accident and negligence case in the Philippines is decided somewhere in this Book, and in several areas a special statute now governs first.
Quick Answer
Book IV (Arts. 1156–2270) covers obligations (Arts. 1156–1304), contracts in general (Arts. 1305–1422), natural obligations, estoppel and trusts, then the named contracts from sale (Arts. 1458 onwards) through mortgage and pledge, and finally quasi-contracts and quasi-delicts (Title XVII) and damages (Arts. 2195–2235). It ends with the transitional provisions and Article 2270, the repealing clause. Several subjects are now governed first by special laws, including residential instalment sales, consumer transactions and security interests over movable property.
The Titles of Book IV
| Title | Articles | What it governs |
|---|---|---|
| I — Obligations | 1156–1304 | Sources and kinds of obligations, breach and delay, fortuitous events, and extinguishment including payment, loss, condonation, confusion, compensation and novation |
| II — Contracts | 1305–1422 | Essential requisites, form, reformation, interpretation, rescissible, voidable, unenforceable and void contracts, and the Statute of Frauds |
| III — Natural Obligations | 1423–1430 | Obligations not legally enforceable but which, once voluntarily performed, cannot be recovered |
| IV — Estoppel | 1431–1439 | When a party is barred from denying what it earlier admitted or represented |
| V — Trusts | 1440–1457 | Express and implied trusts, including resulting and constructive trusts |
| VI — Sales | 1458–1637 | Perfection and form, the obligations of seller and buyer, delivery, warranties, documents of title, and remedies for breach |
| VII — Barter or Exchange | 1638–1641 | Exchange of one thing for another |
| VIII — Lease | 1642–1766 | Lease of things, work and services, including the rights and obligations of lessor and lessee |
| IX — Partnership | 1767–1867 | Formation, obligations of partners, management, dissolution and limited partnership |
| X — Agency | 1868–1932 | Authority of the agent, obligations of principal and agent, and modes of extinguishment |
| XI — Loan | 1933–1961 | Commodatum and simple loan (mutuum), and interest |
| XII — Deposit | 1962–2009 | Voluntary, necessary and judicial deposit |
| XIII — Aleatory Contracts | 2010–2027 | Insurance, gambling, and life annuity |
| XIV — Compromises and Arbitrations | 2028–2046 | Settlement of disputes by agreement, and submission to arbitration |
| XV — Guaranty | 2047–2084 | Guaranty and suretyship, and the effects between guarantor, debtor and creditor |
| XVI — Pledge, Mortgage and Antichresis | 2085–2141 | Requisites common to pledge and mortgage, pledge, real estate mortgage, chattel mortgage and antichresis |
| XVII — Extra-Contractual Obligations | 2142–2194 | Chapter 1, quasi-contracts, including payment by mistake and management of another’s affairs; Chapter 2, quasi-delicts, including negligence and vicarious liability |
| XVIII — Damages | 2195–2235 | Actual, moral, nominal, temperate, liquidated and exemplary damages, and the requisites of each |
| XIX — Concurrence and Preference of Credits | 2236–2251 | Which creditors are paid first out of the debtor’s property |
| Transitional and repealing provisions | 2252–2270 | How the new Code applied to situations existing in 1950, and the repealing clause |
Four things Book IV settles that readers usually get wrong
An obligation does not require a contract
Obligations arise from law, from contracts, from quasi-contracts, from acts or omissions punished by law, and from quasi-delicts. Article 1162 makes the cross-reference explicit: obligations derived from quasi-delicts are governed by Chapter 2 of Title XVII of the same Book and by special laws. So a person who has never signed anything with you may still owe you money, and a person who has signed may owe nothing if the contract is void.
A signed document is not automatically a valid contract
Title II separates contracts that are rescissible, voidable, unenforceable and void, and the consequences differ sharply — including who may attack the contract, within what period, and whether it can be ratified. The Statute of Frauds in the same Title makes certain agreements unenforceable by action unless they are in writing, which is a rule about proof rather than about validity.
Civil liability is separate from criminal liability
Quasi-delict under Title XVII stands on its own. It requires an act or omission, fault or negligence, damage, and a causal connection, and it is proved by preponderance of evidence rather than beyond reasonable doubt. The Code also imposes liability for the acts of others in defined circumstances — parents, employers, and owners or possessors of animals and vehicles — and Article 2184 makes the owner of a motor vehicle solidarily liable with the driver where the owner was in the vehicle and could have prevented the mishap by the use of due diligence.
Damages are not one thing
Title XVIII treats actual, moral, nominal, temperate, liquidated and exemplary damages as distinct awards, each with its own requisites and its own proof. Moral damages are not a standard add-on to every successful claim, and exemplary damages are not available merely because the defendant behaved badly. A claim that asks for all of them without establishing the basis of each is routinely trimmed by the courts.
Where special laws govern before Book IV
- Residential instalment sales — the Realty Installment Buyer Protection Act (Republic Act No. 6552) governs cancellation and the buyer’s rights on default, ahead of the general rules on sale.
- Instalment sales of personal property — the Recto Law provisions restrict the seller’s remedies once the vendor has chosen one of them.
- Consumer transactions — the Consumer Act of the Philippines (Republic Act No. 7394) adds protections in consumer sales and services.
- Security over movable property — the Personal Property Security Act (Republic Act No. 11057) now governs security interests in personal property and displaced much of the older law on pledge and chattel mortgage.
- Interest on money judgments — the legal rate, and the date from which it runs, come from Bangko Sentral issuances as applied in Supreme Court decisions, not from the Code. Both have changed, and the applicable rule depends on the period involved, so verify before relying on any figure.
- Arbitration — Title XIV is supplemented by the Alternative Dispute Resolution Act and its rules.
Article 2270, the repealing clause, explains why several of these contracts sit in the Civil Code at all: it repealed the Code of Commerce provisions on sales, partnership, agency, loan, deposit and guaranty, consolidating them here.
Where Book IV is explained on CivilLaw.PH
- Titles I to XVI — Obligations and Contracts, which also carries the named contracts: sale, lease, loan and interest, agency, partnership, guaranty, mortgage and pledge.
- Titles XVII and XVIII — Damages and Civil Liability, covering quasi-contracts, negligence, vicarious liability and the classes of damages.
- Employment obligations — where the Labor Code applies, the subject belongs to our sister site LaborCode.ph; CivilLaw.PH states the civil-law rule and links out rather than duplicating it.
- Collecting, filing and deadlines — Barangay, Courts and Civil Remedies.
Frequently asked questions
Is a verbal agreement binding in the Philippines?
Often yes. A contract is generally binding once there is consent, an object and a cause, whatever its form. The complication is proof, and the Statute of Frauds in Title II makes certain agreements unenforceable by action unless there is a written note or memorandum. The practical question is therefore not whether the agreement existed but what you can prove and whether the agreement is one that must be in writing.
What is the difference between rescission and annulment?
They address different defects and are governed by different chapters of Title II. Rescission addresses economic damage or lesion in a contract that is otherwise valid; annulment addresses a defect in consent or capacity, making the contract voidable. The grounds, the parties who may sue and the periods differ, so the label chosen in a complaint matters.
Can I claim moral damages for a breach of contract?
Not as a matter of course. Title XVIII treats moral damages as a distinct award with its own requisites, and in contractual cases they are generally allowed only in defined circumstances, such as bad faith or fraud, rather than for the disappointment of a broken bargain. The basis has to be pleaded and proved.
If an accident was also a crime, do I have to wait for the criminal case?
Not necessarily. A quasi-delict claim under Title XVII is a civil action in its own right, and the Preliminary Title’s Articles 32 to 35 create further civil actions that proceed independently of a criminal prosecution. How the civil claim was commenced affects the answer, so this is worth checking early rather than after a criminal case has run for years.
Sources and Legal Citations
- Civil Code of the Philippines, Republic Act No. 386, Book IV, Arts. 1156–2270, full text at lawphil.net. Supports: the Titles and their article ranges, Art. 1162’s cross-reference to Chapter 2 of Title XVII, Art. 2184 on motor vehicle mishaps, and Art. 2270’s repeal of the Code of Commerce provisions on sales, partnership, agency, loan, deposit and guaranty. Status: verified against the published text.
- Realty Installment Buyer Protection Act, Republic Act No. 6552. Supports: that residential instalment sales are governed by a special law.
- Consumer Act of the Philippines, Republic Act No. 7394. Supports: additional protections in consumer transactions.
- Personal Property Security Act, Republic Act No. 11057. Supports: that security interests in personal property are now governed by that statute rather than by the older pledge and chattel mortgage rules.
- Labor Code of the Philippines, Presidential Decree No. 442, as amended. Supports: the network boundary for employment obligations.
Sources rechecked as of 11 September 2026. Article ranges are stated by number from the published text; no codal provision is quoted on this page. The legal interest rate and the date from which it runs are deliberately not stated here — both are volatile and must be verified against the current issuance for the period involved.
Disclaimer
This page is general legal information, not legal advice. Contract and damages questions depend on the document, the conduct of both parties, the evidence and the law in force when the obligation arose. CivilLaw.PH is independent and is not a government website, a court, a registry or a law firm.