Employment Act (Cap. 91): Primary legislation governing employment relationships in Singapore. Critical for establishing clear independent contractor status and avoiding misclassification of the consultant as an employee.

Income Tax Act: Governs tax obligations for consultants, including withholding tax requirements, GST registration considerations, and distinction between contractor and employee tax treatment.

Central Provident Fund Act: Regulates mandatory retirement and savings contributions. Important for establishing consultant relationship to avoid triggering mandatory CPF contribution requirements.

Personal Data Protection Act 2012 (PDPA): Governs the collection, use, and disclosure of personal data. Crucial for establishing data protection obligations and privacy requirements in the consultant relationship.

Competition Act: Regulates market competition and trade practices. Relevant for structuring non-compete clauses and trade restrictions in the consultant agreement.

Contract Law (Common Law): Fundamental principles governing contract formation, terms, conditions, and termination. Based on Singapore's common law system.

Civil Law Act: Provides framework for civil obligations including contract enforceability and limitation of liability provisions in consultant agreements.

Workplace Safety and Health Act: Establishes safety requirements and obligations, particularly relevant if consultant performs work on-site or in company premises.

Work Injury Compensation Act: Covers work injury insurance requirements and liability considerations for workplace accidents involving consultants.

Third Parties (Rights of Contracts) Act: Governs rights of third parties under contracts and assignment provisions, relevant for consulting relationships involving multiple parties.