how do builders fiddle via Ltd Co ?

[diesel]

If it makes you all feel any better I knew a self employed sparky who offered a "cash discount" to a lady who turned out to be a VAT inspector. I don't think she pushed as hard as she could have, but I got the impression he learnt his lesson.

[BoredBloke]

So did you pay his wife? Surely by doing this you are helping him avoid his taxes.