self employed - but not declaring tax

[badnews]

A couple of people at work are not declaring their tax. As I always pay mine and always have done since leaving school it really gets up my nose. I really feel like grassing on them but I dont know how to go about it and what information I would need. Does anyone know?

[Postdog]

Have you tried the HMRC website?

Good name for a grass tho!

[tamborine]

I hope you don't suffer retribution. Be certain b4 you 'grass' anything. It's not worth it if you get it wrong and the tax man wont even pat you on the back.

[Twenty20]

How do you know that theyre not declaring their tax?

[badnews]

I know because they boast about how much they earn without paying the taxman. Roughly about �700 per week. Its been going on for about 4years!!!!!!