Electronic Transactions Act (ETA): Key legislation governing electronic contracts, transactions, and signatures. Ensures legal recognition of electronic records and validates electronic contracts.

Personal Data Protection Act (PDPA): Comprehensive data protection law covering collection, use, and disclosure of personal data, including data protection obligations, cross-border transfers, and security requirements.

Copyright Act: Protects original works including code, design, and content. Covers ownership and transfer of intellectual property rights and moral rights considerations.

Computer Misuse Act: Addresses cybersecurity concerns including unauthorized access prevention, protection against cyber threats, and data breach handling protocols.

Contract Law (Common Law): Fundamental principles governing contract formation, terms and conditions, breach and remedies under Singapore's Common Law system.

Consumer Protection (Fair Trading) Act: Ensures fair trading practices and protects against unfair contract terms, particularly relevant when dealing with consumer clients.

Competition Act: Regulates anti-competitive practices and provides guidelines for fair competition in the market.

Spam Control Act: Regulates electronic marketing and commercial communication requirements for websites involving marketing functions.

PDPC Guidelines: Specific guidelines issued by Personal Data Protection Commission for website development and data protection compliance.

Domain Name Regulations: Rules and requirements governing domain name registration and usage in Singapore.

Payment Services Regulations: Regulatory requirements for handling electronic payments and financial transactions if e-commerce is involved.