The Fair Trading Amendment Bill amends the Fair Trading Act 1986 to introduce new protections for businesses and consumers against unfair commercial practices. Firstly, it introduces a prohibition against unconscionable conduct in trade. Secondly, it extends existing protections against unfair contract terms in non-negotiable consumer contracts, or "take it or leave it" consumer contracts, to also apply to business contracts with a value below $250,000 in a given year. Thirdly, it strengthens the ability of consumers to require uninvited sellers to leave or not enter their premises, including through the use of "do not knock" stickers. The bill also makes a number of technical changes to the Act to improve its functioning and to support consistency with other legislation enforced by the Commerce Commission.