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Unfair Contract Terms Act Section 5 — Modifying Unequal Bargains
Consumer / Smaller Party v Business / Standard-form Drafter
Composite summary — not a single reported case. This entry distils a settled line of Thai Supreme Court (Dika / ฎีกา) authority for legal education. It is not a transcript of one reported judgment, and the heading is not a citable case number. Do not cite it as specific case law — consult a Thai-qualified lawyer for the authoritative Dika number and current application.
Facts
A consumer or smaller commercial party entered a standard-form contract drafted by a larger counterparty — typical examples include hire-purchase contracts, telecoms contracts, condominium SPAs, gym memberships, and franchise agreements. The contract contained one-sided clauses: high default interest, sweeping forfeiture, unilateral termination rights, sweeping limitation of liability, or 'as is' disclaimers. The weaker party invoked Section 5 of the Unfair Contract Terms Act B.E. 2540 (1997) to challenge the clause.
Legal Issue
Whether Section 5 UCTA empowers the court to refuse to enforce or to modify clauses imposing an unreasonable burden, and how the test is applied.
Holding
The Supreme Court has confirmed that Section 5 UCTA empowers the court — on a fact-specific assessment of (i) inequality of bargaining power, (ii) the standard-form nature of the contract, (iii) the weaker party's actual choice, and (iv) the substantive content of the clause — to refuse to enforce, or to modify, terms that impose an unreasonable burden. The remedy can be partial (paring the clause back to a fair scope) rather than total invalidation.
Reasoning
Section 5 UCTA is a remedial statute designed to police the abuse of standard-form drafting. The court must balance freedom of contract against the constitutional and policy concern for substantive fairness. The standard-form nature is the trigger but not the conclusion; reasonable standard terms remain enforceable.
Significance
Underpins most consumer-protection and smaller-business contract litigation in Thailand. Drives the practice of including 'fallback' fair-scope language so that the clause survives in modified form.
Practical Takeaway
Businesses: draft standard forms with substantive fairness, not just legal coverage. Consumers: do not assume a one-sided clause is enforceable — keep documents and seek advice if a clause is invoked aggressively.
Cited Statutes
- Unfair Contract Terms Act B.E. 2540 (1997), Sections 4, 5, 6, 10
- Civil and Commercial Code, Sections 150, 152
- Consumer Protection Act B.E. 2522 (1979)
This entry summarises a representative line of authority from the Thai Supreme Court (ฎีกา). It is intended for general legal education only and is not a substitute for advice from a Thai-qualified lawyer. Individual Dika case numbers are being verified against primary sources; until then these entries are presented as composite doctrinal summaries.
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