The UK's plan to compensate millions of customers who were overcharged on car loans was always going to attract a legal fight. The deadline to file challenges was Monday. Six entities, including Mercedes-Benz and Volkswagen, made the cut.
That sets up a high-stakes fight over a £7.5 billion ($10 billion) compensation scheme that could shape how UK regulators handle financial misconduct for years.
The Financial Conduct Authority's plan estimates that 12.1 million mis-sold car finance deals are eligible for compensation. Those deals stem from a long-running issue where car dealerships received commissions tied to the interest rates they set on auto loans, often without disclosing the arrangement to customers.
The FCA's redress scheme is meant to push out compensation across that pool of deals quickly, with a single industry-wide framework.
Mercedes-Benz Group's financial services unit, Volkswagen, and four other companies filed appeals challenging the lawfulness of the scheme. The deadline for legal challenges passed Monday, April 28, 2026.
On the other side, Santander, Barclays, and Lloyds decided to accept the scheme as it stands.
Consumer Voice is also at the Upper Tribunal but for the opposite reason. The group argues the scheme could leave millions of consumers out of pocket by several hundred pounds per claim and is asking for a separate review.
The UK fight has implications far beyond car loans. Financial regulators across Europe and Australia have been pushing harder on consumer redress, and the UK is one of the first to use a single comprehensive framework rather than case-by-case action.
If the legal challenges succeed, regulators will need to rethink how they push large-scale redress. If they fail, more banks and lenders will face similar schemes.
The challenges are now in front of the Upper Tribunal, which will rule on whether the FCA's framework is lawful. Santander already booked an additional £207 million provision for the issue this quarter. The next data point is the Tribunal's decision and how the remaining lenders adjust their provisioning.
