Tax and national insurance should be paid by people on benefits

Background

I want them to introduce tax and national insurance once their benefits reach their yearly allowance so that someone for example that gets £30.000 a year in benefits is not better off than someone who earns £30.000 a year working

Additional details

I want you to do this so that people that work hard are not disadvantaged and get less to live on for earning the same amount someone receives on benefits I feel that people believe that it is better to live off benefits than work and people need to be taught that is not the case