Falkirk Labour MP Eric Joyce (pictured) has run up the biggest expenses bill of any MP in the House of Commons.
Figures released on Monday revealed he spent £190,000 on office costs, staff and travel in the last financial year.
The official figures also revealed six of the top ten expense claims came from Scottish MPs. Michael Connarty, Alistair Carmichael, Mohammed Sarwar, Charles Kennedy and Jim McGovern join Mr Joyce at the top the list.
It comes as the row continued over the expenses of Home Secretary Jacqui Smith. Ms Smith claimed £22,948 in 2007/08 in taxpayer-funded allowances for her second home. Ms Smith, whose claims are already under investigation by a sleaze watchdog, was battling fresh embarrassment after it emerged that public money paid for two adult films watched by her husband Richard Timney.
Ms Smith has apologised for the claim which she made for the cost of watching TV - including the pay-per-view adult films - at her family home in Redditch, Worcestershire, and has paid the money back. It is understood that the movies were watched by Mr Timney while she was away from home. He made a brief apology on Sunday for the embarrassment he caused his wife. Ms Smith's overall expenses claim was £157,631.
The figures released by the House of Commons authorities showed that Prime Minister Gordon Brown claimed £124,454 while Conservative leader David Cameron claimed £148,829.
The details are published annually and were initially due for release last October but were delayed amid a legal row over whether full receipts and invoices should be disclosed.
MPs are permitted to claim a range of expenses, including an additional costs allowance (ACA), which covers the cost of staying away from their main residence to carry out their parliamentary duties.
ACA is used to cover the cost of running and furnishing a property, as well as rent or mortgage interest payments. Most MPs use it to pay for a base in central London to use while they are working in Westminster, though some - like Ms Smith - treat their London address as their main home and claim allowances on their constituency property.
Employment minister Tony McNulty, who has been at the centre of a row over his ACA claim for the outer London house where his parents live, claimed £12,600 in second home allowances.