The proposed increase would translate into about 24,000 pounds after tax and would be roughly equal to the maximum currently allowed for expenses related to a second home.
The Sunday Times said the plan was one of three possible options to be put forward by a committee of senior MPs chaired by the speaker of the House of Commons Michael Martin.
MPs earn just under 62,000 pounds a year and can claim up to 24,000 pounds with receipts to help with the costs of running both a constituency and a London home.
The committee launched the review of MPs expenses after a Conservative MP Derek Conway was found to have been paying his son from his expenses. A John Lewis list - detailing scores of items from coffee machines to new bathrooms claimed for by MPs - also increased public pressure to clean up the system.
The committee is due to report its recommendations shortly.
