Some people on here simply have no idea what they're talking about - it's scary. Enzo if it sounds too good to be true it probably is mate.
Last month I made £3366 gross on sector pay (87 hours roughly at £38.49). My pay slip specifically states £3146 of it is gross the other £220 is non taxable. I received a net of £1910 for this £3366 gross sector earned (57% of the amount gross). You all can be the judge of whether 'The majority of the sector pay is non-taxable' is a reasonable statement or not.
I genuinely think people don't know how to read their own payslips.