Conservative MP Peter Bone paid his wife up to £50,000 to run his office last year, new figures have revealed.
The MP for Wellingborough and Rushden claimed £55,232.12 expenses in 2012-13, according to the Independent Parliamentary Standards Committee (IPSC).
And the IPSC figures show he paid between £45,000 and £49,999 of that to his wife Jeanette, who is his office manager.
Mr Bone was not available for comment when the Chron tried to contact him today.
In the rest of the county, MPs claimed a total of £150,666.76 between them.
Northampton South MP Brian Binley was the biggest claimant with £41,046.54, while Northampton North MP Michael Ellis claimed £24,587.70.
Daventry MP Chris Heaton-Harris claimed £37,720.82, while South Northamptonshire MP Andrea Leadsom claimed £19,261.18.
Kettering MP Philip Hollobone is once again the county’s thriftiest MP, claiming just £8,789.34, while new Corby MP Andy Sawford claimed £23,671.71.
Across the UK, the bill for MPs’ expenses rose by more than seven per cent to £98 million, the IPSC said.
The largest claims in the UK were from Ian Paisley (DUP, North Antrim), who claimed £100,204, and Alistair Carmichael (Lib Dem, Orkney and Shetland), who claimed £82,878
One MP - Tory Zac Goldsmith of Richmond Park - made no claim, while business minister Michael Fallon (Con, Sevenoaks) received just £38.74 and Adam Afriyie (Con, Windsor) £604.20.