The Unfair Contract Terms Act 1977 (c 50) is an Act of Parliament of the United Kingdom which regulates contracts by restricting the operation and legality of some contract terms. It extends to nearly all forms of contract and one of its most important functions is limiting the applicability of disclaimers of liability. The terms extend to both actual contract terms and notices that are seen to constitute a contractual obligation.
The Act renders terms excluding or limiting liability ineffective or subject to reasonableness, depending on the nature of the obligation purported to be excluded and whether the party purporting to exclude or limit business liability, acting against a consumer.
It is normally used in conjunction with the Unfair Terms in Consumer Contracts Regulations 1999 (Statutory Instrument 1999 No. 2083), as well as the Sale of Goods Act 1979 and the Supply of Goods and Services Act 1982.