I am saying nothing about whether we should be taxed more or less. Most people will pay zero tax if allowed to do so.
They are the same rules. "Needing money more" is a difficult thing to quantify. I can definitely say some who earns £20K needs that marginal £ more than a like for like person earning £100K. Therefore that marginal £ should be taxed at a higher rate.
Tax credits then come in to help certain people out, mainly families who have dependants to pay for.
No they aren't the same rules. The same rules would mean either the same tax percentage for everyone, or if tax rates are different for people needing the money more, then everyone needing the money more should get that reduction too.
They are the same rules. "Needing money more" is a difficult thing to quantify. I can definitely say some who earns £20K needs that marginal £ more than a like for like person earning £100K. Therefore that marginal £ should be taxed at a higher rate.
Tax credits then come in to help certain people out, mainly families who have dependants to pay for.