The MP wants an overhaul of mortgage and rent expenses

He says those who put in claims "appear to be using public money to pay off mortgages on their main home".

He also says MPs should be barred from remortgaging their home and use the allowances to cover increased payments.

Mr Baker has written to the chairman of the Review Body on Senior salaries, John Baker calling for the changes.

The Lewes MP suggests four changes in the rules:

1. Ministers who are provided with free taxpayer-funded grace and favour accommodation in London should not be permitted to claim rent or claim mortgage repayments from the ACA for any other property. At the moment ministers who do so appear to be using public money to pay off mortgages on their main home or first property.

2. It should be expressly prohibited for MPs to re-mortgage a property they own and use the ACA to cover the consequential increased mortgage repayments.

3. Any MP owning three or more houses should not be eligible to claim rent or mortgage payments or, at most should be able to claim those for the property with the lowest rent or outstanding mortgage.