Contracts Act (Cap. 53): Primary legislation governing contract formation, validity, and enforcement in Singapore. Covers fundamental principles including offer, acceptance, consideration, and contractual obligations.

Electronic Transactions Act: Regulates formation and validity of electronic contracts, digital signatures, and electronic records in Singapore.

Misrepresentation Act: Deals with false statements made during contract formation and provides remedies for parties induced into contracts by misrepresentation.

Civil Law Act (Cap. 43): Covers contractual formalities, enforcement, and general principles of civil law applicable to contracts in Singapore.

Consumer Protection (Fair Trading) Act: Protects consumer interests in contracts, particularly relevant if one party is a consumer. Ensures fair trading practices.

Unfair Contract Terms Act: Regulates the use and effectiveness of exclusion and limitation clauses in contracts, protecting against unreasonable terms.

Specific Relief Act: Governs remedies available for breach of contract, including specific performance and injunctive relief.

Limitation Act: Sets time limits for bringing contractual claims and legal actions in Singapore courts.

Personal Data Protection Act 2012: Regulates the collection, use, and disclosure of personal data in contracts involving data processing.

Singapore Common Law: Body of case law from Singapore courts and persuasive Commonwealth jurisdictions that supplements statutory law in contract interpretation and enforcement.