Wellingborough MP Peter Bone racked up more than £200,000 in costs and expenses in the last financial year.
The total cost of every MP for 2017-18 has been revealed by IPSA, the authority that oversees parliamentary standards.
Mr Bone - who employs his wife and girlfriend from the public purse - was the most expensive MP in the north of the county with a total cost of £202,707.90 to the taxpayer.
The bulk of that was his payroll (£150,037.80), about £3,000 under the maximum allowed for a non-London MP.
The Brexiter spent more than £7,000 on renting his High Street office as well as claiming for several items of furniture and office equipment.
They included a photocopier (£3,300), new chairs (£1,898.40), filing cabinets (£853.63), a printer (£120) and an office heater (£48).
Other costs claimed included a kettle (£30), a toilet seat (£14), office cleaning (£46.45) and spending £100 to repair his phone screen.
Mr Bone also claimed almost £10,000 in travel, more than £20,000 in accommodation, more than £2,500 on stationery and £438.78 on security.
Kettering MP Philip Hollobone continues to be one of the UK’s cheapest parliamentarians, claiming back just 3.5 per cent of his Wellingborough counterpart’s costs.
The Conservative’s total bill for 2017-18 was £7,117.49.
Of that just under £1,000 was phone bills, about £1,500 came under the staffing category and the rest was train tickets between Kettering and London.
Corby MP Tom Pursglove, the vice chairman of the Conservative Party for youth, cost a total of £170,217.85.
The majority of that was on his payroll, totalling £117,913.70.
Other costs incurred included £11,142.95 on renting his constituency office, £21,492.46 in accommodation and £4,321.40 on travel.
He also claimed back more than £2,500 in stationery, £1,800 on an un-named ‘professional service and advice’ and £586 on London hotels.