My parents run their own business, I occasionaly do a bit of typing etc. for them.
I had DD2 in 2007 but she was born with multiple problems and I am now her official carer, never went back to my old job from maternity leave etc. DH is on longterm sick due to permanent health issues so he gets DLA, DD2 gets DLA, I get CA and we get HB and tax credits etc. My mum has mentioned passing the business to me eventually and recently I have been considering doing this but it would involve me 'working' at their house a couple of days a week to get into things and gain a knowledge of how things work. My dad has run things for many years but is getting old and forgetful which is putting extra strain on my mum so I'm keen to help. They are upgrading cars (do lots of business mileage), so have suggested that I have the old car instead of them selling it, and my work would be in payment for it (our car is falling apart so we really need it, it's worth about 7k). They are very supportive both financially and emotionally, we are quite a close family. Equally we are very much the 'above board' type of people and wouldn't want to do anything that bends the rules at all.
So, my question is, would it be legal for me to 'work' for them in payment for the car? Do I need to notify the benefits even though I'm not actually going to get a tangible, regular income from it? (not that a car isn't tangible, but it won't show on bank statements if you see what I mean!). If we're stuck sometimes they help with food shopping, but we do our best to pay them back. They also buy things for the kids that we can't afford...
Dazed and confused... would appreciate any opinions please, thank you in advance