Contract Law (Cap. 43): Primary legislation governing contract formation, terms, and enforcement in Singapore, including common law principles

Employment Act (Cap. 91): Ensures proper classification of consultant as independent contractor rather than employee, avoiding misclassification issues

Income Tax Act (Cap. 134): Governs tax obligations and withholding requirements for consultancy services

Personal Data Protection Act 2012 (PDPA): Regulates collection, use, and disclosure of personal data if consultant handles such information

Copyright Act (Cap. 63): Protects original works and establishes ownership of intellectual property created during consultancy

Patents Act (Cap. 221): Governs patent rights and inventions that may arise from consultancy work

Trade Marks Act (Cap. 332): Protects trademarks and related intellectual property in consultancy deliverables

Competition Act (Cap. 50B): Regulates anti-competitive practices, particularly relevant for non-compete clauses in consultancy agreements

Electronic Transactions Act (Cap. 88): Governs electronic communications and transactions in consultancy services delivered digitally

Mediation Act 2017: Provides framework for mediation as a dispute resolution mechanism

Arbitration Act (Cap. 10): Governs domestic arbitration proceedings for dispute resolution

International Arbitration Act (Cap. 143A): Governs international arbitration proceedings for cross-border consultancy disputes

GST Registration Requirements: Goods and Services Tax obligations for consultancy services exceeding registration threshold

Work Pass Regulations: Requirements for foreign consultants providing services in Singapore

Professional Indemnity Insurance: Insurance requirements to protect against professional liability claims

Industry-Specific Regulations: Specific regulatory requirements depending on the nature of consultancy services provided