My views on the MPs’ pay were set out in the public consultation and in this column (see http://desmondswaynemp.com/HigherPayforMPs-6thJune2015.htm ).
A number of senior colleagues have now publically announced that they will give their pay rise to charity.
Definitive advice on this question however, can be found in St Mathew’s Gospel chapter 6, verses 1 to 4.