Originally Posted by kaishang
HMRC require you to declare it. There is a requirement to fill in a self-assessment form as the others have said.
I'm guessing that HMRC probably would not find out if they did not declare the income, but that is their choice.
I'd tell your friend that when filling out the self assessment form to put his occupation down as a member of parliament.
HMRC, will see that (MP) and ignore everything else on the form and issue your friend with a tax rebate,and set up a yearly direct credit