LawWiki
HomeCodesSearchGlossaryAPIAbout
LawWiki

Plain English summaries of California law with zero-hallucination AI. Every summary is verified against official source text.

Product

  • Search
  • Codes
  • About

Legal

  • Privacy Policy
  • Terms of Service
  • Disclaimer

© 2026 LawWiki. All rights reserved.

HomeCivil CodeDiv. 3Pt. 2Ch. 4§ 1598 Void Unlawful Contracts

§ 1598 Void Unlawful Contracts

Civil Code·California
AI Summary·Official Text·Key Terms·Related Statutes·References
AI SummaryVerified

§ 1598 Void Unlawful Contracts

This law says that if a contract is about only one thing and that thing is illegal, impossible, or too unclear, then the whole contract is considered void.

Key Takeaways

  • •If a contract's only purpose is illegal, impossible, or too vague, the whole contract is void.
  • •The law applies whether the illegal part is the whole contract or just a part of it.
  • •A contract that can't be clearly defined is also considered void.

Example

A person hires a contractor to build an addition on their house, but the contractor promises to use a material that is banned by law.

Because the single goal of the contract (building the addition) includes an illegal part (using the banned material), the entire agreement is treated as void and cannot be enforced.

AI-generated — May contain errors. Not legal advice. Always verify source.

Official Source
View on CA.gov

§ 1598 Void Unlawful Contracts

Where a contract has but a single object, and such object is unlawful, whether in whole or in part, or wholly impossible of performance, or so vaguely expressed as to be wholly unascertainable, the entire contract is void. (Enacted 1872.)

Last verified: January 9, 2026

Key Terms

single objectunlawfulimpossible of performancevaguely expressedwholly unascertainablevoid

Related Statutes

  • § 1451 Unenforceable Alternative Obligations
  • § 1599 Partial Contract Validity
  • § 1441 Void Contract Conditions
  • § 1608 Unlawful Contract Consideration Void
  • § 1169 Recording Real Property Instruments

References

  • Official text at leginfo.legislature.ca.gov
  • California Legislature. Civil Code. Section 1598.
View Official Source