This answer is written by AI. The information provided in this response is intended for general informational purposes only and should not be considered as legal advice. Do not rely solely on the information provided in this response for any legal decisions. Consult with a qualified legal professional before making any decisions.

Can a Supplier Legally Increase Prices After Agreeing on a Contract?

Question from Ben, Can a Supplier Legally Increase Prices After Agreeing on a Contract?

Answer from AI:

When entering into a contract, both parties are generally bound by the terms agreed upon, including the price, delivery dates, and the goods or services to be provided. However, disputes often arise when one party seeks to change these terms after the agreement has been made. In Sarah’s case, the supplier (ClayS) demanded an additional £800 after initially agreeing on a price and delivery date for the materials necessary for her ceramics collection. This situation raises questions about the legality of such demands and the rights of the parties involved.

Understanding Contract Law

Under UK contract law, a contract is formed when there is an offer, acceptance, consideration (something of value exchanged between the parties), and an intention to create legal relations. Once a contract is in place, its terms cannot be unilaterally altered without the agreement of both parties.

Key Points to Consider:

  1. Original Agreement: If Sarah and ClayS had a clear agreement on the price and delivery date, this constitutes a binding contract that both parties are legally obliged to honor.
  2. Price Increase Demand: ClayS’s demand for an additional £800 after agreeing on a price could be seen as an attempt to unilaterally modify the contract, which is generally not permissible without Sarah’s consent.
  3. Legal Remedies: Sarah may have legal grounds to contest the additional charge based on the principle that the terms of the contract cannot be changed without agreement from both parties.

Potential Legal Actions

If a supplier refuses to deliver goods at the agreed price or attempts to increase the price after a contract has been formed, the affected party has several potential legal remedies:

  • Specific Performance: A court order requiring ClayS to fulfill their original contractual obligations, including delivering the materials at the initially agreed price.
  • Damages: Compensation for any losses Sarah incurred due to ClayS’s breach of contract, which could include the additional £800 she paid and any other consequential losses.
  • Negotiation: Although not a legal remedy, sometimes renegotiating the contract terms can be a practical solution to avoid legal disputes.

Seeking Legal Advice

Given the complexities of contract law and the specifics of each case, it’s crucial for individuals in situations like Sarah’s to seek professional legal advice. A solicitor specializing in contract law can provide guidance on the best course of action, whether it’s negotiating with the supplier, seeking specific performance, or claiming damages for breach of contract.

For more information on contract law and disputes, the UK Government’s guidance on resolving business disputes is a helpful resource.


While suppliers cannot legally increase prices after a contract has been agreed upon without the consent of both parties, resolving such disputes can be complex. Individuals facing similar situations should consult with a legal professional to explore their options and determine the most appropriate course of action based on the specifics of their case.

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