Under new Financial Conduct Authority (FCA) rules in force from today, the maximum consumers can be charged will depend on how much redress they are due. For example, if the redress amount is below £1,500 consumers can only be charged a maximum of 30% of their claim, or £420, whichever is lower.

The changes are expected to save consumers £9.6m a year and thousands of pounds on some individual claims.

The cap will apply to most claims where a consumer is awarded monetary redress from a financial services firm, either directly from a firm, via the Financial Ombudsman Service or if a firm has gone out of business, from the Financial Services Compensation Scheme (FSCS).

For other financial services claims, the rules require charges to be reasonable. The new rules do not apply to PPI claims which are already subject to a 20% cap, set by Parliament.

The rules mean CMCs must also disclose key information to consumers before entering a contract, such as giving more detail about how fees will be calculated and making sure they are aware of the free routes to redress available. For example, if consumers make a complaint or a compensation claim themselves to the Ombudsman Service or the FSCS they would keep all redress awarded.

Sheldon Mills, executive director of consumers and competition at the FCA, said: “Our rules protect consumers from losing a significant amount of their compensation in excessive fees, particularly when there are ways for them to make claims without incurring any fees.

“The changes are part of our ongoing work to drive a fundamental shift in industry mindset so we can stop consumer harm before it happens, and to ensure more consistent standards of protection.”