MP for Maidenhead, Theresa May claimed £6,735.77 in 2012/13, including staff costs and spending on her constituency office.
Windsor MP, Adam Afriyie claimed just £604.20 for his office.
Neither politician claimed any travel expenses.
The new figures from The Independent Parliamentary Standards Authority (IPSA) showed the total claimed from commons representatives was £23.8m.
That is down £10.9m since before the 2009 expenses scandal.
The IPSA was set up in response to the public outcry following the shocking revelations which led to jail terms for some MPs.
It reveals full details of every expenses claim made in the last financial year.
The organisation claimed in its annual report that is has saved more than £35m since it was formed in 2010.
MP for Beaconsfield, Dominic Grieve, whose constituency covers areas of South Buckinghamshire, claimed £17,711.98 and Slough MP Fiona Mactaggart claimed £35,238.07.
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The Met Office has issued a yellow alert for Windsor and Maidenhead, Slough and Wokingham, warning that rain moving eastwards across the south of the country may turn to snow in some places.