Half of the MPs in the north and north-east are claiming public money to rent constituency offices from their own parties.
Details were published yesterday of more than £3.6million paid to MPs for offices rented from their parties since the 2010 election.
A total of 244 leases were from political parties – about a third of the total – with 477 through other landlords.
The data from the Independent Parliamentary Standards Authority shows six of the 12 MPs for the north and north-east on the list – Inverness MP Danny Alexander, Gordon MP Sir Malcolm Bruce, Ross, Skye and Lochaber MP Charles Kennedy, Western Isles MP Angus MacNeil, Argyll and Bute MP Alan Reid and Moray MP Angus Robertson.
The average cost of leases from political parties was £14,886, slightly higher than the £14,156 for offices rented from other landlords.
Authority chairman Sir Ian Kennedy said: “Our rules allow MPs to rent from a political party, but we require an extra assurance from MPs if they do so – an independent valuation that the lease represents the market rate.
“We are confident that this measure means taxpayers have received value for money from these leases.
“As part of a broad review of accommodation support, the authority will consider whether, even if the individual leases are appropriate, the cumulative effect means we need to reconsider this aspect of the rules.”
Jonathan Isaby, of the Taxpayers Alliance, said: “It’s effectively a back-door subsidy to political parties.”