Dominic Grieve, MP for Beaconsfield, will answer questions about his expenses at a public meeting next weekend.
Anybody living in the constituency is invited to attend the meeting on Saturday June 20 at the Memorial Centre on East Common, Gerrards Cross, at 10am.
The meeting will be chaired by Philip Durnville, chairman of the Beaconsfield Conservative Association, who will also explain how the current system of allowances and expenses works.
Mr Grieve will take questions from the floor relating to his own expenses and will take part in a general discussion about how the expenses system could be reformed.
Also up for discussion are wider ranging possible reforms such as a reduction in the number of Mps, the introduction of fixed term parliaments, and reforms to the House of Lords.