Civil Law Act (Cap. 43): Primary legislation governing civil law matters in Singapore, including contractual obligations and interest rates
Moneylenders Act (Cap. 188): Regulates money lending transactions and provides framework for interest rate controls and borrower protections
Contracts Act (Cap. 53): Fundamental legislation governing contract formation, validity, and enforcement in Singapore
Bills of Exchange Act (Cap. 23): Contains provisions relevant to negotiable instruments, including promissory notes, though not directly governing them
Stamp Duties Act (Cap. 312): Governs the stamp duty requirements for legal documents including promissory notes
Consumer Protection (Fair Trading) Act: Ensures fair trading practices and protects consumer interests in financial transactions
Unfair Contract Terms Act: Regulates unfair terms in contracts and provides protection against unreasonable contract conditions
Limitation Act (Cap. 163): Sets time limits for enforcement of legal rights and bringing of legal actions
Rules of Court: Procedural rules governing the enforcement of legal documents through Singapore courts
Moneylenders Rules: Subsidiary legislation under Moneylenders Act providing specific regulations on interest rates and lending practices
Banking Act: Relevant if the promissory note involves regulated financial institutions or banking transactions
MAS Guidelines: Regulatory guidelines issued by Monetary Authority of Singapore affecting financial instruments and transactions
