Question about backdated Severe disability payment. I am appointee for my son who ist transpires is going to be recieving a backdated lump sum as he wasnt awarded SDP when he should have been. I have been told that the amount will be disregarded for 12 months so he will want to spend it. Its a large amount. I am seriously daunted by this because I am worried that this sum of money could impact his benefits. What can the money be spent on? He wants to go on a dream holiday but I was told that he wouldnt be able to pay for me to take him I would have to fund myself but I havent go money for that.. has anyone any experience of navigating this?