There's a slight noticeable effect of tax-free allowances (or 0% band if you think of it that way). UK £100k gross income = £66,692.76 take home UK £80k gross

There's a slight noticeable effect of tax-free allowances (or 0% band if you think of it that way). UK £100k gross income = £66,692.76 take home UK £80k gross income = £55,092.76 take home So that's a 20% cut in gross income for a 17.4% cut in net income. Put it another way, you're £1,738.55 better off than a flat 20% cut in net income. https://listentotaxman.com/?year=2021&taxregion=uk&married=true&marriageallowance=true&age=0&time=1&ingr=100000 https://listentotaxman.com/?year=2021&taxregion=uk&married=t... https://listentotaxman.com/?year=2021&taxregion=uk&married=true&marriageallowance=true&age=0&time=1&ingr=80000 https://listentotaxman.com/?year=2021&taxregion=uk&married=t...