Fixing PC's on the side while living with parents?

Im wanting to start fixing PCs on the side to earn some extra cash, now I know id have to declare any extra income to the tax office which is fine, wh

I'm wanting to start fixing PC's on the side to earn some extra cash, now I know i'd have to declare any extra income to the tax office which is fine, what I would like to know is how would this affect my parents mortgage /benefits as my dad is disabled, would this affect anything as all profit would be going to me and only me? any help would be appreciated.

Thanks!

or:I'm wanting to start fixing PC's on the side to earn some extra cash, now I know i'd have to declare any extra income to the tax office which is fine, what I would like to know is how would this affect my parents mortgage /benefits as my dad is disabled, would this affect anything as all profit would be going to me and only me? any help would be appreciated.Thanks!

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