Eric Joyce has racked up a £13,000 expenses bill on train tickets and hotel costs for staff – some of which was run up on a special Parliamentary credit card . Parliament ’ s expenses watchdog has been forced to dock an MP 's wages until the election in a bid to recoup £13,000 in debts he owes the taxpayer , MailOnline can reveal . Eric Joyce , who was convicted of assault in 2012 after head-butting a fellow MP in a bar , racked up the bill on train tickets and other expenses – some of which was put on a special Parliamentary credit card . Commons expenses chiefs made the unprecedented decision to recoup the cash by deducting around £1,000 a month from Mr Joyce ’ s wages after he objected to handing back the cash . The Independent Parliamentary Standards Authority [ IPSA ] , which overseas MPs ’ expenses , began deducting cash from his salary in February , but he only has another two months ’ pay before the election . Mr Joyce , who was kicked out of the Labour Party following the 2012 Commons brawl , is not standing for election in May and will therefore still owe thousands of pounds after leaving Parliament . IPSA has revealed that Mr Joyce now owes just over £10,000 - down from £12,919.61 at the end of January . If he refuses to repay the money after leaving Parliament he will be pursued through the civil courts , an IPSA source told MailOnline . The expenses body has never deducted cash directly from an MP ’ s salary before – and Mr Joyce is understood to be furious about the move . A source said : ‘ We are doing it and he knows we are doing it . We have these powers to be able to do it . I wouldn ’ t say he was happy about it. ’ IPSA informed the MP last month that they would not pay a host of travel and other expenses . A spokesman for the expenses watchdog said : ‘ It is unusual for us to be in this situation , but we are clear that the MP has a duty to repay the sums due and it is our job to make sure that the taxpayer doesn ’ t lose out . ‘ We are taking payments direct from the MP ’ s salary to recover the money due . If the MP leaves Parliament at the election and there are still amounts owing , we will continue to seek repayment. ’ Mr Joyce , a former army officer , was thrown out of the Labour party after being arrested for head-butting Tory MP Stuart Andrew ( right ) in a House of Commons bar . Mr Joyce confirmed to MailOnline he owed around £10,000 in claims for ‘ travel and accommodation for staff ’ . He revealed he was being docked ‘ around a grand a month ’ from his wages . Mr Joyce said he was told out of the blue by IPSA that he owed them the money and insisted that they had previously signed off his expenses claims – a claim which IPSA denies . The MP said he had made a complaint to the expenses watchdog ’ s compliance officer who was investigating whether it was a ‘ fair demand ’ . He said : ‘ It won ’ t be finished when I finish next month . I will have to pay them it anyway . ‘ If I owe them it then I will pay them it , but I just dispute that I owe them it. ’ In a blog post posted on his website last month he attacked IPSA for making it look like he ‘ had knowingly left a debt unpaid for over a year ’ . Sir Ian Kennedy has led the clampdown on MPs ' expenses as chair of the Independent Parliamentary Standards Authority . He said : ‘ IPSA accepts that the claims were agreed in advance , then confirmed as OK , then checked and paid by IPSA. ’ But he said : ‘ They say that the original reading of the rules by IPSA staff was wrong and so was all of the advice they gave . ‘ My staff member or me , as it ’ s my responsibility should therefore repay all of the cash paid out by IPSA last year. ’ He added : ‘ I have at no point in my parliamentary career failed to promptly pay anything to IPSA which may have been owed by my office , nor have I made any public complaint about IPSA . ‘ I will not repay IPSA in cash unless the situation is resolved in IPSA ’ s favour. ’ The revelation that Mr Joyce owes more than £10,000 to the Commons authorities comes after his expenses claims sparked controversy last year when it emerged he had bought expensive computers and charged them to the taxpayer . In total Mr Joyce claimed £185,635 in expenses last year . Among the items he charged to the taxpayer was £1,777 of 'replacement laptops ' and £125 on accessories from the Apple shop . Mr Joyce will be able to keep the technology despite agreeing to refrain from seeking re-election in 2015 . The MP was thrown out of the Labour party after being arrested for head-butting Tory MP Stuart Andrew in a House of Commons bar . In March 2013 the former Army major was banned from buying alcohol in Parliament following another bust-up . He was fined £1,500 for abusive language towards a baggage handler at Edinburgh Airport earlier this year . Mr Joyce has refused to resign his seat despite pressure from critics .
EXCLUSIVE : Eric Joyce racked up the bill on train tickets hotels for staff . Some of the debt was run up on a special Commons credit card for MPs . Mr Joyce now owes just over £10,000 , down from £12,919.61 in January . Commons expenses watchdog IPSA docking his wages by around £1,000 . But the MP only has two pay packets left before leaving Parliament . He is fighting the claim , insisting that IPSA signed off his expense claims . Mr Joyce was convicted of assault in 2012 after head-butting a fellow MP . Ex Army major was also banned from buying alcohol in Parliament in 2013 . Fined £1,500 for abusive language towards staff at Edinburgh Airport .