Come on Taxman..£500/pd is definitely better than £70K as permie. You can earn > 2x easily.500 x 20 (days per month) X 10 (months per year) = 100,000As a contractor you have ways to pay little less tax than permie.So, 100,000 x .75 = 75,000 net pa (after tax)Whereas permie.£70,000 * 0.70 = 49,000 pa(after tax)Not a tough decision really, moolah-wise of course