UK companies registered with the Securities and Exchange Commission have been told they will not be allowed to secure any deals that negotiate limited liability with their auditors, the Financial Times reports. Usually, auditors have unlimited liability - facing all costs if the company is to be sued. Last year, UK rules changed so companies and their auditors can agree to a limit of risk in balance with the responsibility they have. The SEC has said that these rules do not apply for UK companies that have registered with the commission either because they have a US stock market listing or have a high number of US investors. Head of KPMG Europe John Griffith- Jones said that this decision will place big pressure on the Big Four needlessly, according to the FT. UK auditors will lobby for change to make liability limits statutory so that the SEC is unlikely to block them in future agreements.