A more intrusive and interventionist style of regulation of the mortgage market has been promised by the Financial Services Authority.

Its mortgage market review discussion paper’s key features are:

• Imposing affordability tests for all mortgages and making lenders ultimately responsible for assessing a consumer’s ability to pay;
• Banning 'self-cert’ mortgages through required verification of borrowers’ income;
• Banning the sale of products which contain certain 'toxic combinations’ of characteristics that put borrowers at risk;
• Banning arrears charges when a borrower is already repaying and ensuring firms do not profit from people in arrears;
• Requiring all mortgage advisers to be personally accountable to the FSA;
• Calling for the FSA’s scope to cover buy-to-let and all lending secured on a home.

Jon Pain, FSA managing director of supervision, said: “The mortgage market has seen extraordinary upheaval over the last 18 months and whilst it has worked well for the vast majority of borrowers, some have suffered great financial distress.

"We recognise that we need to bring about a step change in regulation and we need to act now to address the issues we have identified.

“The paper sets out the main findings of the FSA’s comprehensive analysis of the mortgage market.

"It clearly shows a rapid explosion in mortgage products; the emergence of high risk lending strategies which typically focused on higher risk borrowers; relaxed credit standards; and a mutual assumption by too many borrowers and lenders that the good times could not end.

“The FSA needs to ensure that firms only lend to people who can afford to pay the money back. The reforms that we have announced today will ensure that the mortgage market works better for consumers and that it is sustainable for firms.”

The review has also identified that the irresponsible lending practices seen in the market until recently will be curtailed by the FSA’s existing work on capital and liquidity.

The proposals are designed to tackle the problems identified while maintaining a vibrant and sustainable market.

But the FSA has not ruled out further change if the initial proposals do not have sufficient effect, including caps on loan-to-value, loan-to-income or debt-to-income.