The amounts written off ranged from £7.50 to £309. The reasons they were not paid by Ipsa included because they were outside the allowances scheme or that they were duplicate claims.
Much of the spending was on official credit cards that are automatically paid off by Ipsa before checks on whether they are allowable.
Ipsa said the amounts had been written off because it was not cost-effective to continue to pursue them.
The full list of written-off debts
Barry Gardiner (Labour, Brent North) - £77.30
Caroline Dinenage (Conservative, Gosport) - £13.50
Charles Hendry (Conservative, Wealden - until May 2015) - £87.60
Chris Skidmore (Conservative, Kingswood) - £125.00
Clive Efford (Labour, Eltham) - £79.20
Daniel Poulter (Conservative, Central Suffolk and North Ipswich) - £229.62
Edward Timpson (Conservative, Crewe and Nantwich) - £127.70
Frank Dobson (Labour, Holborn and St Pancras - until May 2015) - £7.50
Frank Roy (Labour, Motherwell and Wishaw - until May 2015) - £63.37
Guy Opperman (Conservative, Hexham) - £161.09
Ian Mearns (Labour, Gateshead) - £10.00
Joe Benton (Labour, Bootle - until May 2015) - £309.15
Julie Hilling (Labour, Bolton West - until May 2015) - £75.30
Khalid Mahmood (Labour, Birmingham Perry Barr) - £36.00
Laurence Robertson (Conservative, Tewkesbury) - £27.00
Michael Meacher (Labour, Oldham West and Royton) - £27.00
Paul Farrelly (Labour, Newcastle-under-Lyme) - £28.00
Peter Bone (Conservative, Wellingborough) - £40.17
Sian James (Labour, Swansea East - until May 2015) - £193.00
Stephen Barclay (Conservative, North East Cambridgeshire) - £62.75
Stephen McCabe (Labour, Birmingham Selly Oak) - £27.00
Stephen Williams (Liberal Democrat, Bristol West - until May 2015) - £209.18
Stewart Jackson (Conservative, Peterborough) - £7.50
Tim Yeo (Conservative, South Suffolk - until May 2015) £10.00
Tobias Ellwood (Conservative, Bournemouth East) - £26.50
